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

/* Bluetooth HCI driver model support. */

#include <linux/kernel.h>
#include <linux/init.h>

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

struct class *bt_class = NULL;
EXPORT_SYMBOL_GPL(bt_class);

static struct workqueue_struct *btaddconn;
static struct workqueue_struct *btdelconn;

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 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);

	flush_workqueue(btdelconn);

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

void hci_conn_add_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;

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

	dev_set_drvdata(&conn->dev, conn);

	device_initialize(&conn->dev);

	INIT_WORK(&conn->work, add_conn);

	queue_work(btaddconn, &conn->work);
}

/*
 * 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);
	struct hci_dev *hdev = conn->hdev;

	while (1) {
		struct device *dev;

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

	device_del(&conn->dev);
	put_device(&conn->dev);
	hci_dev_put(hdev);
}

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

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

	INIT_WORK(&conn->work, del_conn);

	queue_work(btdelconn, &conn->work);
}

static inline char *host_typetostr(int type)
{
	switch (type) {
	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 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->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_inquiry_cache(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_dev *hdev = dev_get_drvdata(dev);
	struct inquiry_cache *cache = &hdev->inq_cache;
	struct inquiry_entry *e;
	int n = 0;

	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);
		n += sprintf(buf + n, "%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 n;
}

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(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(inquiry_cache, S_IRUGO, show_inquiry_cache, 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_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_inquiry_cache.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 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,
};

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

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

	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;

	return 0;
}

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

	device_del(&hdev->dev);
}

int __init bt_sysfs_init(void)
{
	btaddconn = create_singlethread_workqueue("btaddconn");
	if (!btaddconn)
		return -ENOMEM;

	btdelconn = create_singlethread_workqueue("btdelconn");
	if (!btdelconn) {
		destroy_workqueue(btaddconn);
		return -ENOMEM;
	}

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

	return 0;
}

void bt_sysfs_cleanup(void)
{
	destroy_workqueue(btaddconn);
	destroy_workqueue(btdelconn);

	class_destroy(bt_class);
}
Commit	Line	Data
1da177e4 LT	1	/* Bluetooth HCI driver model support. */
1da177e4 LT	2
1da177e4 LT	3	#include <linux/kernel.h>
	4	#include <linux/init.h>
	5
	6	#include <net/bluetooth/bluetooth.h>
	7	#include <net/bluetooth/hci_core.h>
	8
90855d7b MH	9	struct class *bt_class = NULL;
	10	EXPORT_SYMBOL_GPL(bt_class);
	11
b6c06321 DY	12	static struct workqueue_struct *btaddconn;
b6c06321 DY	13	static struct workqueue_struct *btdelconn;
1da177e4	14
90855d7b MH	15	static inline char *link_typetostr(int type)
	16	{
	17	switch (type) {
	18	case ACL_LINK:
	19	return "ACL";
	20	case SCO_LINK:
	21	return "SCO";
	22	case ESCO_LINK:
	23	return "eSCO";
	24	default:
	25	return "UNKNOWN";
	26	}
	27	}
	28
	29	static ssize_t show_link_type(struct device dev, struct device_attribute attr, char *buf)
	30	{
	31	struct hci_conn *conn = dev_get_drvdata(dev);
	32	return sprintf(buf, "%s\n", link_typetostr(conn->type));
	33	}
	34
	35	static ssize_t show_link_address(struct device dev, struct device_attribute attr, char *buf)
	36	{
	37	struct hci_conn *conn = dev_get_drvdata(dev);
	38	bdaddr_t bdaddr;
	39	baswap(&bdaddr, &conn->dst);
	40	return sprintf(buf, "%s\n", batostr(&bdaddr));
	41	}
	42
	43	static ssize_t show_link_features(struct device dev, struct device_attribute attr, char *buf)
	44	{
	45	struct hci_conn *conn = dev_get_drvdata(dev);
	46
	47	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	48	conn->features[0], conn->features[1],
	49	conn->features[2], conn->features[3],
	50	conn->features[4], conn->features[5],
	51	conn->features[6], conn->features[7]);
	52	}
	53
	54	#define LINK_ATTR(_name,_mode,_show,_store) \
	55	struct device_attribute link_attr_##_name = __ATTR(_name,_mode,_show,_store)
	56
	57	static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
	58	static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
	59	static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
	60
	61	static struct attribute *bt_link_attrs[] = {
	62	&link_attr_type.attr,
	63	&link_attr_address.attr,
	64	&link_attr_features.attr,
	65	NULL
	66	};
	67
	68	static struct attribute_group bt_link_group = {
	69	.attrs = bt_link_attrs,
	70	};
	71
	72	static struct attribute_group *bt_link_groups[] = {
	73	&bt_link_group,
	74	NULL
	75	};
	76
	77	static void bt_link_release(struct device *dev)
	78	{
79	void *data = dev_get_drvdata(dev);
80	kfree(data);
81	}
82
83	static struct device_type bt_link = {
84	.name = "link",
85	.groups = bt_link_groups,
86	.release = bt_link_release,
87	};
88
89	static void add_conn(struct work_struct *work)
90	{
91	struct hci_conn *conn = container_of(work, struct hci_conn, work);
92
93	flush_workqueue(btdelconn);
94
95	if (device_add(&conn->dev) < 0) {
96	BT_ERR("Failed to register connection device");
97	return;
98	}
99	}
100
101	void hci_conn_add_sysfs(struct hci_conn *conn)
102	{
103	struct hci_dev *hdev = conn->hdev;
104
105	BT_DBG("conn %p", conn);
106
107	conn->dev.type = &bt_link;
108	conn->dev.class = bt_class;
109	conn->dev.parent = &hdev->dev;
110
fb28ad35	111	dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
90855d7b MH	112
	113	dev_set_drvdata(&conn->dev, conn);
	114
	115	device_initialize(&conn->dev);
	116
	117	INIT_WORK(&conn->work, add_conn);
	118
	119	queue_work(btaddconn, &conn->work);
	120	}
	121
	122	/*
	123	* The rfcomm tty device will possibly retain even when conn
	124	* is down, and sysfs doesn't support move zombie device,
	125	* so we should move the device before conn device is destroyed.
	126	*/
	127	static int __match_tty(struct device dev, void data)
	128	{
fb28ad35	129	return !strncmp(dev_name(dev), "rfcomm", 6);
90855d7b MH	130	}
	131
	132	static void del_conn(struct work_struct *work)
	133	{
	134	struct hci_conn *conn = container_of(work, struct hci_conn, work);
	135	struct hci_dev *hdev = conn->hdev;
	136
	137	while (1) {
	138	struct device *dev;
	139
	140	dev = device_find_child(&conn->dev, NULL, __match_tty);
	141	if (!dev)
	142	break;
	143	device_move(dev, NULL);
	144	put_device(dev);
	145	}
	146
	147	device_del(&conn->dev);
	148	put_device(&conn->dev);
	149	hci_dev_put(hdev);
	150	}
	151
	152	void hci_conn_del_sysfs(struct hci_conn *conn)
	153	{
	154	BT_DBG("conn %p", conn);
	155
	156	if (!device_is_registered(&conn->dev))
	157	return;
	158
	159	INIT_WORK(&conn->work, del_conn);
	160
	161	queue_work(btdelconn, &conn->work);
	162	}
	163
	164	static inline char *host_typetostr(int type)
1da177e4	165	{
4d0eb004	166	switch (type) {
0ac53939	167	case HCI_VIRTUAL:
4d0eb004 MH	168	return "VIRTUAL";
	169	case HCI_USB:
	170	return "USB";
	171	case HCI_PCCARD:
	172	return "PCCARD";
	173	case HCI_UART:
	174	return "UART";
	175	case HCI_RS232:
	176	return "RS232";
	177	case HCI_PCI:
	178	return "PCI";
0ac53939 MH	179	case HCI_SDIO:
0ac53939 MH	180	return "SDIO";
4d0eb004 MH	181	default:
	182	return "UNKNOWN";
	183	}
1da177e4 LT	184	}
1da177e4 LT	185
a91f2e39	186	static ssize_t show_type(struct device dev, struct device_attribute attr, char *buf)
1da177e4	187	{
a91f2e39	188	struct hci_dev *hdev = dev_get_drvdata(dev);
90855d7b	189	return sprintf(buf, "%s\n", host_typetostr(hdev->type));
1da177e4 LT	190	}
1da177e4 LT	191
a9de9248 MH	192	static ssize_t show_name(struct device dev, struct device_attribute attr, char *buf)
	193	{
	194	struct hci_dev *hdev = dev_get_drvdata(dev);
	195	char name[249];
	196	int i;
	197
	198	for (i = 0; i < 248; i++)
	199	name[i] = hdev->dev_name[i];
	200
	201	name[248] = '\0';
	202	return sprintf(buf, "%s\n", name);
	203	}
	204
	205	static ssize_t show_class(struct device dev, struct device_attribute attr, char *buf)
	206	{
	207	struct hci_dev *hdev = dev_get_drvdata(dev);
	208	return sprintf(buf, "0x%.2x%.2x%.2x\n",
	209	hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
	210	}
	211
a91f2e39	212	static ssize_t show_address(struct device dev, struct device_attribute attr, char *buf)
1da177e4	213	{
a91f2e39	214	struct hci_dev *hdev = dev_get_drvdata(dev);
1da177e4 LT	215	bdaddr_t bdaddr;
	216	baswap(&bdaddr, &hdev->bdaddr);
	217	return sprintf(buf, "%s\n", batostr(&bdaddr));
	218	}
	219
a9de9248 MH	220	static ssize_t show_features(struct device dev, struct device_attribute attr, char *buf)
	221	{
	222	struct hci_dev *hdev = dev_get_drvdata(dev);
	223
	224	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	225	hdev->features[0], hdev->features[1],
	226	hdev->features[2], hdev->features[3],
	227	hdev->features[4], hdev->features[5],
	228	hdev->features[6], hdev->features[7]);
	229	}
	230
1143e5a6 MH	231	static ssize_t show_manufacturer(struct device dev, struct device_attribute attr, char *buf)
	232	{
	233	struct hci_dev *hdev = dev_get_drvdata(dev);
	234	return sprintf(buf, "%d\n", hdev->manufacturer);
	235	}
	236
	237	static ssize_t show_hci_version(struct device dev, struct device_attribute attr, char *buf)
	238	{
	239	struct hci_dev *hdev = dev_get_drvdata(dev);
	240	return sprintf(buf, "%d\n", hdev->hci_ver);
	241	}
	242
	243	static ssize_t show_hci_revision(struct device dev, struct device_attribute attr, char *buf)
	244	{
	245	struct hci_dev *hdev = dev_get_drvdata(dev);
	246	return sprintf(buf, "%d\n", hdev->hci_rev);
	247	}
	248
a91f2e39	249	static ssize_t show_inquiry_cache(struct device dev, struct device_attribute attr, char *buf)
1da177e4	250	{
a91f2e39	251	struct hci_dev *hdev = dev_get_drvdata(dev);
1da177e4 LT	252	struct inquiry_cache *cache = &hdev->inq_cache;
	253	struct inquiry_entry *e;
	254	int n = 0;
	255
	256	hci_dev_lock_bh(hdev);
	257
	258	for (e = cache->list; e; e = e->next) {
	259	struct inquiry_data *data = &e->data;
	260	bdaddr_t bdaddr;
	261	baswap(&bdaddr, &data->bdaddr);
a8bd28ba	262	n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
1da177e4	263	batostr(&bdaddr),
a8bd28ba MH	264	data->pscan_rep_mode, data->pscan_period_mode,
	265	data->pscan_mode, data->dev_class[2],
	266	data->dev_class[1], data->dev_class[0],
	267	__le16_to_cpu(data->clock_offset),
	268	data->rssi, data->ssp_mode, e->timestamp);
1da177e4 LT	269	}
	270
	271	hci_dev_unlock_bh(hdev);
	272	return n;
	273	}
	274
a91f2e39	275	static ssize_t show_idle_timeout(struct device dev, struct device_attribute attr, char *buf)
04837f64	276	{
a91f2e39	277	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	278	return sprintf(buf, "%d\n", hdev->idle_timeout);
	279	}
	280
a91f2e39	281	static ssize_t store_idle_timeout(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	282	{
a91f2e39	283	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	284	char *ptr;
	285	__u32 val;
	286
	287	val = simple_strtoul(buf, &ptr, 10);
	288	if (ptr == buf)
	289	return -EINVAL;
	290
	291	if (val != 0 && (val < 500 \|\| val > 3600000))
	292	return -EINVAL;
	293
	294	hdev->idle_timeout = val;
	295
	296	return count;
	297	}
	298
a91f2e39	299	static ssize_t show_sniff_max_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	300	{
a91f2e39	301	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	302	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	303	}
	304
a91f2e39	305	static ssize_t store_sniff_max_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	306	{
a91f2e39	307	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	308	char *ptr;
	309	__u16 val;
	310
	311	val = simple_strtoul(buf, &ptr, 10);
	312	if (ptr == buf)
	313	return -EINVAL;
	314
	315	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	316	return -EINVAL;
	317
	318	if (val < hdev->sniff_min_interval)
	319	return -EINVAL;
	320
	321	hdev->sniff_max_interval = val;
	322
	323	return count;
	324	}
	325
a91f2e39	326	static ssize_t show_sniff_min_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	327	{
a91f2e39	328	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	329	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	330	}
	331
a91f2e39	332	static ssize_t store_sniff_min_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	333	{
a91f2e39	334	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	335	char *ptr;
	336	__u16 val;
	337
	338	val = simple_strtoul(buf, &ptr, 10);
	339	if (ptr == buf)
	340	return -EINVAL;
	341
	342	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	343	return -EINVAL;
	344
	345	if (val > hdev->sniff_max_interval)
	346	return -EINVAL;
	347
	348	hdev->sniff_min_interval = val;
	349
	350	return count;
	351	}
	352
a91f2e39	353	static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
a9de9248 MH	354	static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
a9de9248 MH	355	static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
a91f2e39	356	static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
a9de9248	357	static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
1143e5a6 MH	358	static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
	359	static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
	360	static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
a91f2e39	361	static DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
1da177e4	362
a91f2e39	363	static DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
04837f64	364	show_idle_timeout, store_idle_timeout);
a91f2e39	365	static DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
04837f64	366	show_sniff_max_interval, store_sniff_max_interval);
a91f2e39	367	static DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
04837f64 MH	368	show_sniff_min_interval, store_sniff_min_interval);
04837f64 MH	369
90855d7b MH	370	static struct attribute *bt_host_attrs[] = {
	371	&dev_attr_type.attr,
	372	&dev_attr_name.attr,
	373	&dev_attr_class.attr,
	374	&dev_attr_address.attr,
	375	&dev_attr_features.attr,
	376	&dev_attr_manufacturer.attr,
	377	&dev_attr_hci_version.attr,
	378	&dev_attr_hci_revision.attr,
	379	&dev_attr_inquiry_cache.attr,
	380	&dev_attr_idle_timeout.attr,
	381	&dev_attr_sniff_max_interval.attr,
	382	&dev_attr_sniff_min_interval.attr,
1da177e4 LT	383	NULL
	384	};
	385
90855d7b MH	386	static struct attribute_group bt_host_group = {
90855d7b MH	387	.attrs = bt_host_attrs,
b219e3ac MH	388	};
b219e3ac MH	389
90855d7b MH	390	static struct attribute_group *bt_host_groups[] = {
	391	&bt_host_group,
	392	NULL
27d35284 MH	393	};
27d35284 MH	394
90855d7b	395	static void bt_host_release(struct device *dev)
a91f2e39	396	{
b219e3ac MH	397	void *data = dev_get_drvdata(dev);
	398	kfree(data);
	399	}
	400
90855d7b MH	401	static struct device_type bt_host = {
	402	.name = "host",
	403	.groups = bt_host_groups,
	404	.release = bt_host_release,
	405	};
a91f2e39	406
1da177e4 LT	407	int hci_register_sysfs(struct hci_dev *hdev)
1da177e4 LT	408	{
a91f2e39	409	struct device *dev = &hdev->dev;
1da177e4 LT	410	int err;
	411
	412	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
	413
90855d7b MH	414	dev->type = &bt_host;
90855d7b MH	415	dev->class = bt_class;
e9c4bec6	416	dev->parent = hdev->parent;
a91f2e39	417
2e792995	418	dev_set_name(dev, "%s", hdev->name);
1da177e4	419
a91f2e39	420	dev_set_drvdata(dev, hdev);
27d35284	421
a91f2e39	422	err = device_register(dev);
1da177e4 LT	423	if (err < 0)
	424	return err;
	425
1da177e4 LT	426	return 0;
	427	}
	428
	429	void hci_unregister_sysfs(struct hci_dev *hdev)
	430	{
1da177e4 LT	431	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
1da177e4 LT	432
4d0eb004	433	device_del(&hdev->dev);
1da177e4 LT	434	}
	435
	436	int __init bt_sysfs_init(void)
	437	{
b6c06321	438	btaddconn = create_singlethread_workqueue("btaddconn");
90855d7b MH	439	if (!btaddconn)
90855d7b MH	440	return -ENOMEM;
5396c935	441
b6c06321 DY	442	btdelconn = create_singlethread_workqueue("btdelconn");
b6c06321 DY	443	if (!btdelconn) {
90855d7b MH	444	destroy_workqueue(btaddconn);
90855d7b MH	445	return -ENOMEM;
b6c06321	446	}
27d35284	447
a91f2e39 MH	448	bt_class = class_create(THIS_MODULE, "bluetooth");
a91f2e39 MH	449	if (IS_ERR(bt_class)) {
90855d7b MH	450	destroy_workqueue(btdelconn);
	451	destroy_workqueue(btaddconn);
	452	return PTR_ERR(bt_class);
27d35284 MH	453	}
	454
	455	return 0;
1da177e4 LT	456	}
1da177e4 LT	457
860e13b5	458	void bt_sysfs_cleanup(void)
1da177e4	459	{
b6c06321 DY	460	destroy_workqueue(btaddconn);
b6c06321 DY	461	destroy_workqueue(btdelconn);
5396c935	462
a91f2e39	463	class_destroy(bt_class);
1da177e4	464	}