[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>

#ifndef CONFIG_BT_HCI_CORE_DEBUG
#undef  BT_DBG
#define BT_DBG(D...)
#endif

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;

	snprintf(conn->dev.bus_id, BUS_ID_SIZE, "%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->bus_id, "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;

	strlcpy(dev->bus_id, hdev->name, BUS_ID_SIZE);

	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
	9	#ifndef CONFIG_BT_HCI_CORE_DEBUG
	10	#undef BT_DBG
	11	#define BT_DBG(D...)
	12	#endif
90855d7b MH	13
	14	struct class *bt_class = NULL;
	15	EXPORT_SYMBOL_GPL(bt_class);
	16
b6c06321 DY	17	static struct workqueue_struct *btaddconn;
b6c06321 DY	18	static struct workqueue_struct *btdelconn;
1da177e4	19
90855d7b MH	20	static inline char *link_typetostr(int type)
	21	{
	22	switch (type) {
	23	case ACL_LINK:
	24	return "ACL";
	25	case SCO_LINK:
	26	return "SCO";
	27	case ESCO_LINK:
	28	return "eSCO";
	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);
	43	bdaddr_t bdaddr;
	44	baswap(&bdaddr, &conn->dst);
	45	return sprintf(buf, "%s\n", batostr(&bdaddr));
	46	}
	47
	48	static ssize_t show_link_features(struct device dev, struct device_attribute attr, char *buf)
	49	{
	50	struct hci_conn *conn = dev_get_drvdata(dev);
	51
	52	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	53	conn->features[0], conn->features[1],
	54	conn->features[2], conn->features[3],
	55	conn->features[4], conn->features[5],
	56	conn->features[6], conn->features[7]);
	57	}
	58
	59	#define LINK_ATTR(_name,_mode,_show,_store) \
	60	struct device_attribute link_attr_##_name = __ATTR(_name,_mode,_show,_store)
	61
	62	static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
	63	static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
	64	static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
	65
	66	static struct attribute *bt_link_attrs[] = {
	67	&link_attr_type.attr,
	68	&link_attr_address.attr,
	69	&link_attr_features.attr,
	70	NULL
	71	};
	72
	73	static struct attribute_group bt_link_group = {
	74	.attrs = bt_link_attrs,
	75	};
	76
	77	static struct attribute_group *bt_link_groups[] = {
	78	&bt_link_group,
	79	NULL
	80	};
	81
	82	static void bt_link_release(struct device *dev)
	83	{
84	void *data = dev_get_drvdata(dev);
85	kfree(data);
86	}
87
88	static struct device_type bt_link = {
89	.name = "link",
90	.groups = bt_link_groups,
91	.release = bt_link_release,
92	};
93
94	static void add_conn(struct work_struct *work)
95	{
96	struct hci_conn *conn = container_of(work, struct hci_conn, work);
97
98	flush_workqueue(btdelconn);
99
100	if (device_add(&conn->dev) < 0) {
101	BT_ERR("Failed to register connection device");
102	return;
103	}
104	}
105
106	void hci_conn_add_sysfs(struct hci_conn *conn)
107	{
108	struct hci_dev *hdev = conn->hdev;
109
110	BT_DBG("conn %p", conn);
111
112	conn->dev.type = &bt_link;
113	conn->dev.class = bt_class;
114	conn->dev.parent = &hdev->dev;
115
116	snprintf(conn->dev.bus_id, BUS_ID_SIZE, "%s:%d",
117	hdev->name, conn->handle);
118
119	dev_set_drvdata(&conn->dev, conn);
120
121	device_initialize(&conn->dev);
122
123	INIT_WORK(&conn->work, add_conn);
124
125	queue_work(btaddconn, &conn->work);
126	}
127
128	/*
129	* The rfcomm tty device will possibly retain even when conn
130	* is down, and sysfs doesn't support move zombie device,
131	* so we should move the device before conn device is destroyed.
132	*/
133	static int __match_tty(struct device dev, void data)
134	{
135	return !strncmp(dev->bus_id, "rfcomm", 6);
136	}
137
138	static void del_conn(struct work_struct *work)
139	{
140	struct hci_conn *conn = container_of(work, struct hci_conn, work);
141	struct hci_dev *hdev = conn->hdev;
142
143	while (1) {
144	struct device *dev;
145
146	dev = device_find_child(&conn->dev, NULL, __match_tty);
147	if (!dev)
148	break;
149	device_move(dev, NULL);
150	put_device(dev);
151	}
152
153	device_del(&conn->dev);
154	put_device(&conn->dev);
155	hci_dev_put(hdev);
156	}
157
158	void hci_conn_del_sysfs(struct hci_conn *conn)
159	{
160	BT_DBG("conn %p", conn);
161
162	if (!device_is_registered(&conn->dev))
163	return;
164
165	INIT_WORK(&conn->work, del_conn);
166
167	queue_work(btdelconn, &conn->work);
168	}
169
170	static inline char *host_typetostr(int type)
1da177e4	171	{
4d0eb004	172	switch (type) {
0ac53939	173	case HCI_VIRTUAL:
4d0eb004 MH	174	return "VIRTUAL";
	175	case HCI_USB:
	176	return "USB";
	177	case HCI_PCCARD:
	178	return "PCCARD";
	179	case HCI_UART:
	180	return "UART";
	181	case HCI_RS232:
	182	return "RS232";
	183	case HCI_PCI:
	184	return "PCI";
0ac53939 MH	185	case HCI_SDIO:
0ac53939 MH	186	return "SDIO";
4d0eb004 MH	187	default:
	188	return "UNKNOWN";
	189	}
1da177e4 LT	190	}
1da177e4 LT	191
a91f2e39	192	static ssize_t show_type(struct device dev, struct device_attribute attr, char *buf)
1da177e4	193	{
a91f2e39	194	struct hci_dev *hdev = dev_get_drvdata(dev);
90855d7b	195	return sprintf(buf, "%s\n", host_typetostr(hdev->type));
1da177e4 LT	196	}
1da177e4 LT	197
a9de9248 MH	198	static ssize_t show_name(struct device dev, struct device_attribute attr, char *buf)
	199	{
	200	struct hci_dev *hdev = dev_get_drvdata(dev);
	201	char name[249];
	202	int i;
	203
	204	for (i = 0; i < 248; i++)
	205	name[i] = hdev->dev_name[i];
	206
	207	name[248] = '\0';
	208	return sprintf(buf, "%s\n", name);
	209	}
	210
	211	static ssize_t show_class(struct device dev, struct device_attribute attr, char *buf)
	212	{
	213	struct hci_dev *hdev = dev_get_drvdata(dev);
	214	return sprintf(buf, "0x%.2x%.2x%.2x\n",
	215	hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
	216	}
	217
a91f2e39	218	static ssize_t show_address(struct device dev, struct device_attribute attr, char *buf)
1da177e4	219	{
a91f2e39	220	struct hci_dev *hdev = dev_get_drvdata(dev);
1da177e4 LT	221	bdaddr_t bdaddr;
	222	baswap(&bdaddr, &hdev->bdaddr);
	223	return sprintf(buf, "%s\n", batostr(&bdaddr));
	224	}
	225
a9de9248 MH	226	static ssize_t show_features(struct device dev, struct device_attribute attr, char *buf)
	227	{
	228	struct hci_dev *hdev = dev_get_drvdata(dev);
	229
	230	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	231	hdev->features[0], hdev->features[1],
	232	hdev->features[2], hdev->features[3],
	233	hdev->features[4], hdev->features[5],
	234	hdev->features[6], hdev->features[7]);
	235	}
	236
1143e5a6 MH	237	static ssize_t show_manufacturer(struct device dev, struct device_attribute attr, char *buf)
	238	{
	239	struct hci_dev *hdev = dev_get_drvdata(dev);
	240	return sprintf(buf, "%d\n", hdev->manufacturer);
	241	}
	242
	243	static ssize_t show_hci_version(struct device dev, struct device_attribute attr, char *buf)
	244	{
	245	struct hci_dev *hdev = dev_get_drvdata(dev);
	246	return sprintf(buf, "%d\n", hdev->hci_ver);
	247	}
	248
	249	static ssize_t show_hci_revision(struct device dev, struct device_attribute attr, char *buf)
	250	{
	251	struct hci_dev *hdev = dev_get_drvdata(dev);
	252	return sprintf(buf, "%d\n", hdev->hci_rev);
	253	}
	254
a91f2e39	255	static ssize_t show_inquiry_cache(struct device dev, struct device_attribute attr, char *buf)
1da177e4	256	{
a91f2e39	257	struct hci_dev *hdev = dev_get_drvdata(dev);
1da177e4 LT	258	struct inquiry_cache *cache = &hdev->inq_cache;
	259	struct inquiry_entry *e;
	260	int n = 0;
	261
	262	hci_dev_lock_bh(hdev);
	263
	264	for (e = cache->list; e; e = e->next) {
	265	struct inquiry_data *data = &e->data;
	266	bdaddr_t bdaddr;
	267	baswap(&bdaddr, &data->bdaddr);
a8bd28ba	268	n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
1da177e4	269	batostr(&bdaddr),
a8bd28ba MH	270	data->pscan_rep_mode, data->pscan_period_mode,
	271	data->pscan_mode, data->dev_class[2],
	272	data->dev_class[1], data->dev_class[0],
	273	__le16_to_cpu(data->clock_offset),
	274	data->rssi, data->ssp_mode, e->timestamp);
1da177e4 LT	275	}
	276
	277	hci_dev_unlock_bh(hdev);
	278	return n;
	279	}
	280
a91f2e39	281	static ssize_t show_idle_timeout(struct device dev, struct device_attribute attr, char *buf)
04837f64	282	{
a91f2e39	283	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	284	return sprintf(buf, "%d\n", hdev->idle_timeout);
	285	}
	286
a91f2e39	287	static ssize_t store_idle_timeout(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	288	{
a91f2e39	289	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	290	char *ptr;
	291	__u32 val;
	292
	293	val = simple_strtoul(buf, &ptr, 10);
	294	if (ptr == buf)
	295	return -EINVAL;
	296
	297	if (val != 0 && (val < 500 \|\| val > 3600000))
	298	return -EINVAL;
	299
	300	hdev->idle_timeout = val;
	301
	302	return count;
	303	}
	304
a91f2e39	305	static ssize_t show_sniff_max_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	306	{
a91f2e39	307	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	308	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	309	}
	310
a91f2e39	311	static ssize_t store_sniff_max_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	312	{
a91f2e39	313	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	314	char *ptr;
	315	__u16 val;
	316
	317	val = simple_strtoul(buf, &ptr, 10);
	318	if (ptr == buf)
	319	return -EINVAL;
	320
	321	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	322	return -EINVAL;
	323
	324	if (val < hdev->sniff_min_interval)
	325	return -EINVAL;
	326
	327	hdev->sniff_max_interval = val;
	328
	329	return count;
	330	}
	331
a91f2e39	332	static ssize_t show_sniff_min_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	333	{
a91f2e39	334	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	335	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	336	}
	337
a91f2e39	338	static ssize_t store_sniff_min_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	339	{
a91f2e39	340	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	341	char *ptr;
	342	__u16 val;
	343
	344	val = simple_strtoul(buf, &ptr, 10);
	345	if (ptr == buf)
	346	return -EINVAL;
	347
	348	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	349	return -EINVAL;
	350
	351	if (val > hdev->sniff_max_interval)
	352	return -EINVAL;
	353
	354	hdev->sniff_min_interval = val;
	355
	356	return count;
	357	}
	358
a91f2e39	359	static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
a9de9248 MH	360	static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
a9de9248 MH	361	static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
a91f2e39	362	static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
a9de9248	363	static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
1143e5a6 MH	364	static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
	365	static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
	366	static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
a91f2e39	367	static DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
1da177e4	368
a91f2e39	369	static DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
04837f64	370	show_idle_timeout, store_idle_timeout);
a91f2e39	371	static DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
04837f64	372	show_sniff_max_interval, store_sniff_max_interval);
a91f2e39	373	static DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
04837f64 MH	374	show_sniff_min_interval, store_sniff_min_interval);
04837f64 MH	375
90855d7b MH	376	static struct attribute *bt_host_attrs[] = {
	377	&dev_attr_type.attr,
	378	&dev_attr_name.attr,
	379	&dev_attr_class.attr,
	380	&dev_attr_address.attr,
	381	&dev_attr_features.attr,
	382	&dev_attr_manufacturer.attr,
	383	&dev_attr_hci_version.attr,
	384	&dev_attr_hci_revision.attr,
	385	&dev_attr_inquiry_cache.attr,
	386	&dev_attr_idle_timeout.attr,
	387	&dev_attr_sniff_max_interval.attr,
	388	&dev_attr_sniff_min_interval.attr,
1da177e4 LT	389	NULL
	390	};
	391
90855d7b MH	392	static struct attribute_group bt_host_group = {
90855d7b MH	393	.attrs = bt_host_attrs,
b219e3ac MH	394	};
b219e3ac MH	395
90855d7b MH	396	static struct attribute_group *bt_host_groups[] = {
	397	&bt_host_group,
	398	NULL
27d35284 MH	399	};
27d35284 MH	400
90855d7b	401	static void bt_host_release(struct device *dev)
a91f2e39	402	{
b219e3ac MH	403	void *data = dev_get_drvdata(dev);
	404	kfree(data);
	405	}
	406
90855d7b MH	407	static struct device_type bt_host = {
	408	.name = "host",
	409	.groups = bt_host_groups,
	410	.release = bt_host_release,
	411	};
a91f2e39	412
1da177e4 LT	413	int hci_register_sysfs(struct hci_dev *hdev)
1da177e4 LT	414	{
a91f2e39	415	struct device *dev = &hdev->dev;
1da177e4 LT	416	int err;
	417
	418	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
	419
90855d7b MH	420	dev->type = &bt_host;
90855d7b MH	421	dev->class = bt_class;
e9c4bec6	422	dev->parent = hdev->parent;
a91f2e39 MH	423
a91f2e39 MH	424	strlcpy(dev->bus_id, hdev->name, BUS_ID_SIZE);
1da177e4	425
a91f2e39	426	dev_set_drvdata(dev, hdev);
27d35284	427
a91f2e39	428	err = device_register(dev);
1da177e4 LT	429	if (err < 0)
	430	return err;
	431
1da177e4 LT	432	return 0;
	433	}
	434
	435	void hci_unregister_sysfs(struct hci_dev *hdev)
	436	{
1da177e4 LT	437	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
1da177e4 LT	438
4d0eb004	439	device_del(&hdev->dev);
1da177e4 LT	440	}
	441
	442	int __init bt_sysfs_init(void)
	443	{
b6c06321	444	btaddconn = create_singlethread_workqueue("btaddconn");
90855d7b MH	445	if (!btaddconn)
90855d7b MH	446	return -ENOMEM;
5396c935	447
b6c06321 DY	448	btdelconn = create_singlethread_workqueue("btdelconn");
b6c06321 DY	449	if (!btdelconn) {
90855d7b MH	450	destroy_workqueue(btaddconn);
90855d7b MH	451	return -ENOMEM;
b6c06321	452	}
27d35284	453
a91f2e39 MH	454	bt_class = class_create(THIS_MODULE, "bluetooth");
a91f2e39 MH	455	if (IS_ERR(bt_class)) {
90855d7b MH	456	destroy_workqueue(btdelconn);
	457	destroy_workqueue(btaddconn);
	458	return PTR_ERR(bt_class);
27d35284 MH	459	}
	460
	461	return 0;
1da177e4 LT	462	}
1da177e4 LT	463
860e13b5	464	void bt_sysfs_cleanup(void)
1da177e4	465	{
b6c06321 DY	466	destroy_workqueue(btaddconn);
b6c06321 DY	467	destroy_workqueue(btdelconn);
5396c935	468
a91f2e39	469	class_destroy(bt_class);
1da177e4	470	}