[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 *bluetooth;

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_add);

	/* ensure previous add/del is complete */
	flush_workqueue(bluetooth);

	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, add_conn);

	queue_work(bluetooth, &conn->work_add);
}

/*
 * 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;

	/* ensure previous add/del is complete */
	flush_workqueue(bluetooth);

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

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

	INIT_WORK(&conn->work_del, del_conn);

	queue_work(bluetooth, &conn->work_del);
}

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

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

	return 0;
}

void bt_sysfs_cleanup(void)
{
	destroy_workqueue(bluetooth);

	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
f3784d83	12	static struct workqueue_struct *bluetooth;
1da177e4	13
90855d7b MH	14	static inline char *link_typetostr(int type)
	15	{
	16	switch (type) {
	17	case ACL_LINK:
	18	return "ACL";
	19	case SCO_LINK:
	20	return "SCO";
	21	case ESCO_LINK:
	22	return "eSCO";
	23	default:
	24	return "UNKNOWN";
	25	}
	26	}
	27
	28	static ssize_t show_link_type(struct device dev, struct device_attribute attr, char *buf)
	29	{
	30	struct hci_conn *conn = dev_get_drvdata(dev);
	31	return sprintf(buf, "%s\n", link_typetostr(conn->type));
	32	}
	33
	34	static ssize_t show_link_address(struct device dev, struct device_attribute attr, char *buf)
	35	{
	36	struct hci_conn *conn = dev_get_drvdata(dev);
	37	bdaddr_t bdaddr;
	38	baswap(&bdaddr, &conn->dst);
	39	return sprintf(buf, "%s\n", batostr(&bdaddr));
	40	}
	41
	42	static ssize_t show_link_features(struct device dev, struct device_attribute attr, char *buf)
	43	{
	44	struct hci_conn *conn = dev_get_drvdata(dev);
	45
	46	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	47	conn->features[0], conn->features[1],
	48	conn->features[2], conn->features[3],
	49	conn->features[4], conn->features[5],
	50	conn->features[6], conn->features[7]);
	51	}
	52
	53	#define LINK_ATTR(_name,_mode,_show,_store) \
	54	struct device_attribute link_attr_##_name = __ATTR(_name,_mode,_show,_store)
	55
	56	static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
	57	static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
	58	static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
	59
	60	static struct attribute *bt_link_attrs[] = {
	61	&link_attr_type.attr,
	62	&link_attr_address.attr,
	63	&link_attr_features.attr,
	64	NULL
	65	};
	66
	67	static struct attribute_group bt_link_group = {
	68	.attrs = bt_link_attrs,
	69	};
	70
	71	static struct attribute_group *bt_link_groups[] = {
	72	&bt_link_group,
	73	NULL
	74	};
	75
	76	static void bt_link_release(struct device *dev)
	77	{
78	void *data = dev_get_drvdata(dev);
79	kfree(data);
80	}
81
82	static struct device_type bt_link = {
83	.name = "link",
84	.groups = bt_link_groups,
85	.release = bt_link_release,
86	};
87
88	static void add_conn(struct work_struct *work)
89	{
f3784d83	90	struct hci_conn *conn = container_of(work, struct hci_conn, work_add);
90855d7b	91
f3784d83 RQ	92	/* ensure previous add/del is complete */
f3784d83 RQ	93	flush_workqueue(bluetooth);
90855d7b MH	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
f3784d83	117	INIT_WORK(&conn->work_add, add_conn);
90855d7b	118
f3784d83	119	queue_work(bluetooth, &conn->work_add);
90855d7b MH	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	{
f3784d83	134	struct hci_conn *conn = container_of(work, struct hci_conn, work_del);
90855d7b MH	135	struct hci_dev *hdev = conn->hdev;
90855d7b MH	136
f3784d83 RQ	137	/* ensure previous add/del is complete */
	138	flush_workqueue(bluetooth);
	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);
	152	hci_dev_put(hdev);
	153	}
	154
	155	void hci_conn_del_sysfs(struct hci_conn *conn)
	156	{
	157	BT_DBG("conn %p", conn);
	158
	159	if (!device_is_registered(&conn->dev))
	160	return;
	161
f3784d83	162	INIT_WORK(&conn->work_del, del_conn);
90855d7b	163
f3784d83	164	queue_work(bluetooth, &conn->work_del);
90855d7b MH	165	}
	166
	167	static inline char *host_typetostr(int type)
1da177e4	168	{
4d0eb004	169	switch (type) {
0ac53939	170	case HCI_VIRTUAL:
4d0eb004 MH	171	return "VIRTUAL";
	172	case HCI_USB:
	173	return "USB";
	174	case HCI_PCCARD:
	175	return "PCCARD";
	176	case HCI_UART:
	177	return "UART";
	178	case HCI_RS232:
	179	return "RS232";
	180	case HCI_PCI:
	181	return "PCI";
0ac53939 MH	182	case HCI_SDIO:
0ac53939 MH	183	return "SDIO";
4d0eb004 MH	184	default:
	185	return "UNKNOWN";
	186	}
1da177e4 LT	187	}
1da177e4 LT	188
a91f2e39	189	static ssize_t show_type(struct device dev, struct device_attribute attr, char *buf)
1da177e4	190	{
a91f2e39	191	struct hci_dev *hdev = dev_get_drvdata(dev);
90855d7b	192	return sprintf(buf, "%s\n", host_typetostr(hdev->type));
1da177e4 LT	193	}
1da177e4 LT	194
a9de9248 MH	195	static ssize_t show_name(struct device dev, struct device_attribute attr, char *buf)
	196	{
	197	struct hci_dev *hdev = dev_get_drvdata(dev);
	198	char name[249];
	199	int i;
	200
	201	for (i = 0; i < 248; i++)
	202	name[i] = hdev->dev_name[i];
	203
	204	name[248] = '\0';
	205	return sprintf(buf, "%s\n", name);
	206	}
	207
	208	static ssize_t show_class(struct device dev, struct device_attribute attr, char *buf)
	209	{
	210	struct hci_dev *hdev = dev_get_drvdata(dev);
	211	return sprintf(buf, "0x%.2x%.2x%.2x\n",
	212	hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
	213	}
	214
a91f2e39	215	static ssize_t show_address(struct device dev, struct device_attribute attr, char *buf)
1da177e4	216	{
a91f2e39	217	struct hci_dev *hdev = dev_get_drvdata(dev);
1da177e4 LT	218	bdaddr_t bdaddr;
	219	baswap(&bdaddr, &hdev->bdaddr);
	220	return sprintf(buf, "%s\n", batostr(&bdaddr));
	221	}
	222
a9de9248 MH	223	static ssize_t show_features(struct device dev, struct device_attribute attr, char *buf)
	224	{
	225	struct hci_dev *hdev = dev_get_drvdata(dev);
	226
	227	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	228	hdev->features[0], hdev->features[1],
	229	hdev->features[2], hdev->features[3],
	230	hdev->features[4], hdev->features[5],
	231	hdev->features[6], hdev->features[7]);
	232	}
	233
1143e5a6 MH	234	static ssize_t show_manufacturer(struct device dev, struct device_attribute attr, char *buf)
	235	{
	236	struct hci_dev *hdev = dev_get_drvdata(dev);
	237	return sprintf(buf, "%d\n", hdev->manufacturer);
	238	}
	239
	240	static ssize_t show_hci_version(struct device dev, struct device_attribute attr, char *buf)
	241	{
	242	struct hci_dev *hdev = dev_get_drvdata(dev);
	243	return sprintf(buf, "%d\n", hdev->hci_ver);
	244	}
	245
	246	static ssize_t show_hci_revision(struct device dev, struct device_attribute attr, char *buf)
	247	{
	248	struct hci_dev *hdev = dev_get_drvdata(dev);
	249	return sprintf(buf, "%d\n", hdev->hci_rev);
	250	}
	251
a91f2e39	252	static ssize_t show_inquiry_cache(struct device dev, struct device_attribute attr, char *buf)
1da177e4	253	{
a91f2e39	254	struct hci_dev *hdev = dev_get_drvdata(dev);
1da177e4 LT	255	struct inquiry_cache *cache = &hdev->inq_cache;
	256	struct inquiry_entry *e;
	257	int n = 0;
	258
	259	hci_dev_lock_bh(hdev);
	260
	261	for (e = cache->list; e; e = e->next) {
	262	struct inquiry_data *data = &e->data;
	263	bdaddr_t bdaddr;
	264	baswap(&bdaddr, &data->bdaddr);
a8bd28ba	265	n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
1da177e4	266	batostr(&bdaddr),
a8bd28ba MH	267	data->pscan_rep_mode, data->pscan_period_mode,
	268	data->pscan_mode, data->dev_class[2],
	269	data->dev_class[1], data->dev_class[0],
	270	__le16_to_cpu(data->clock_offset),
	271	data->rssi, data->ssp_mode, e->timestamp);
1da177e4 LT	272	}
	273
	274	hci_dev_unlock_bh(hdev);
	275	return n;
	276	}
	277
a91f2e39	278	static ssize_t show_idle_timeout(struct device dev, struct device_attribute attr, char *buf)
04837f64	279	{
a91f2e39	280	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	281	return sprintf(buf, "%d\n", hdev->idle_timeout);
	282	}
	283
a91f2e39	284	static ssize_t store_idle_timeout(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	285	{
a91f2e39	286	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	287	char *ptr;
	288	__u32 val;
	289
	290	val = simple_strtoul(buf, &ptr, 10);
	291	if (ptr == buf)
	292	return -EINVAL;
	293
	294	if (val != 0 && (val < 500 \|\| val > 3600000))
	295	return -EINVAL;
	296
	297	hdev->idle_timeout = val;
	298
	299	return count;
	300	}
	301
a91f2e39	302	static ssize_t show_sniff_max_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	303	{
a91f2e39	304	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	305	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	306	}
	307
a91f2e39	308	static ssize_t store_sniff_max_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	309	{
a91f2e39	310	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	311	char *ptr;
	312	__u16 val;
	313
	314	val = simple_strtoul(buf, &ptr, 10);
	315	if (ptr == buf)
	316	return -EINVAL;
	317
	318	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	319	return -EINVAL;
	320
	321	if (val < hdev->sniff_min_interval)
	322	return -EINVAL;
	323
	324	hdev->sniff_max_interval = val;
	325
	326	return count;
	327	}
	328
a91f2e39	329	static ssize_t show_sniff_min_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	330	{
a91f2e39	331	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	332	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	333	}
	334
a91f2e39	335	static ssize_t store_sniff_min_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	336	{
a91f2e39	337	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	338	char *ptr;
	339	__u16 val;
	340
	341	val = simple_strtoul(buf, &ptr, 10);
	342	if (ptr == buf)
	343	return -EINVAL;
	344
	345	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	346	return -EINVAL;
	347
	348	if (val > hdev->sniff_max_interval)
	349	return -EINVAL;
	350
	351	hdev->sniff_min_interval = val;
	352
	353	return count;
	354	}
	355
a91f2e39	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);
a91f2e39	364	static DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
1da177e4	365
a91f2e39	366	static DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
04837f64	367	show_idle_timeout, store_idle_timeout);
a91f2e39	368	static DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
04837f64	369	show_sniff_max_interval, store_sniff_max_interval);
a91f2e39	370	static DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
04837f64 MH	371	show_sniff_min_interval, store_sniff_min_interval);
04837f64 MH	372
90855d7b MH	373	static struct attribute *bt_host_attrs[] = {
	374	&dev_attr_type.attr,
	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,
	382	&dev_attr_inquiry_cache.attr,
	383	&dev_attr_idle_timeout.attr,
	384	&dev_attr_sniff_max_interval.attr,
	385	&dev_attr_sniff_min_interval.attr,
1da177e4 LT	386	NULL
	387	};
	388
90855d7b MH	389	static struct attribute_group bt_host_group = {
90855d7b MH	390	.attrs = bt_host_attrs,
b219e3ac MH	391	};
b219e3ac MH	392
90855d7b MH	393	static struct attribute_group *bt_host_groups[] = {
	394	&bt_host_group,
	395	NULL
27d35284 MH	396	};
27d35284 MH	397
90855d7b	398	static void bt_host_release(struct device *dev)
a91f2e39	399	{
b219e3ac MH	400	void *data = dev_get_drvdata(dev);
	401	kfree(data);
	402	}
	403
90855d7b MH	404	static struct device_type bt_host = {
	405	.name = "host",
	406	.groups = bt_host_groups,
	407	.release = bt_host_release,
	408	};
a91f2e39	409
1da177e4 LT	410	int hci_register_sysfs(struct hci_dev *hdev)
1da177e4 LT	411	{
a91f2e39	412	struct device *dev = &hdev->dev;
1da177e4 LT	413	int err;
	414
	415	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
	416
90855d7b MH	417	dev->type = &bt_host;
90855d7b MH	418	dev->class = bt_class;
e9c4bec6	419	dev->parent = hdev->parent;
a91f2e39	420
2e792995	421	dev_set_name(dev, "%s", hdev->name);
1da177e4	422
a91f2e39	423	dev_set_drvdata(dev, hdev);
27d35284	424
a91f2e39	425	err = device_register(dev);
1da177e4 LT	426	if (err < 0)
	427	return err;
	428
1da177e4 LT	429	return 0;
	430	}
	431
	432	void hci_unregister_sysfs(struct hci_dev *hdev)
	433	{
1da177e4 LT	434	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
1da177e4 LT	435
4d0eb004	436	device_del(&hdev->dev);
1da177e4 LT	437	}
	438
	439	int __init bt_sysfs_init(void)
	440	{
f3784d83 RQ	441	bluetooth = create_singlethread_workqueue("bluetooth");
f3784d83 RQ	442	if (!bluetooth)
90855d7b	443	return -ENOMEM;
27d35284	444
a91f2e39 MH	445	bt_class = class_create(THIS_MODULE, "bluetooth");
a91f2e39 MH	446	if (IS_ERR(bt_class)) {
f3784d83	447	destroy_workqueue(bluetooth);
90855d7b	448	return PTR_ERR(bt_class);
27d35284 MH	449	}
	450
	451	return 0;
1da177e4 LT	452	}
1da177e4 LT	453
860e13b5	454	void bt_sysfs_cleanup(void)
1da177e4	455	{
f3784d83	456	destroy_workqueue(bluetooth);
5396c935	457
a91f2e39	458	class_destroy(bt_class);
1da177e4	459	}