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

/* Bluetooth HCI driver model support. */

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

#include <linux/platform_device.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
static struct workqueue_struct *btaddconn;
static struct workqueue_struct *btdelconn;

static inline char *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", 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 device_attribute *bt_attrs[] = {
	&dev_attr_type,
	&dev_attr_name,
	&dev_attr_class,
	&dev_attr_address,
	&dev_attr_features,
	&dev_attr_manufacturer,
	&dev_attr_hci_version,
	&dev_attr_hci_revision,
	&dev_attr_inquiry_cache,
	&dev_attr_idle_timeout,
	&dev_attr_sniff_max_interval,
	&dev_attr_sniff_min_interval,
	NULL
};

static ssize_t show_conn_type(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct hci_conn *conn = dev_get_drvdata(dev);
	return sprintf(buf, "%s\n", conn->type == ACL_LINK ? "ACL" : "SCO");
}

static ssize_t show_conn_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_conn_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 CONN_ATTR(_name,_mode,_show,_store) \
struct device_attribute conn_attr_##_name = __ATTR(_name,_mode,_show,_store)

static CONN_ATTR(type, S_IRUGO, show_conn_type, NULL);
static CONN_ATTR(address, S_IRUGO, show_conn_address, NULL);
static CONN_ATTR(features, S_IRUGO, show_conn_features, NULL);

static struct device_attribute *conn_attrs[] = {
	&conn_attr_type,
	&conn_attr_address,
	&conn_attr_features,
	NULL
};

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

static struct bus_type bt_bus = {
	.name	= "bluetooth",
};

static struct platform_device *bt_platform;

static void bt_release(struct device *dev)
{
	void *data = dev_get_drvdata(dev);
	kfree(data);
}

static void add_conn(struct work_struct *work)
{
	struct hci_conn *conn = container_of(work, struct hci_conn, work);
	int i;

	flush_workqueue(btdelconn);

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

	for (i = 0; conn_attrs[i]; i++)
		if (device_create_file(&conn->dev, conn_attrs[i]) < 0)
			BT_ERR("Failed to create connection attribute");
}

void hci_conn_add_sysfs(struct hci_conn *conn)
{
	struct hci_dev *hdev = conn->hdev;

	BT_DBG("conn %p", conn);

	conn->dev.bus = &bt_bus;
	conn->dev.parent = &hdev->dev;

	conn->dev.release = bt_release;

	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);
}

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

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

	dev->bus = &bt_bus;
	dev->parent = hdev->parent;

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

	dev->release = bt_release;

	dev_set_drvdata(dev, hdev);

	err = device_register(dev);
	if (err < 0)
		return err;

	for (i = 0; bt_attrs[i]; i++)
		if (device_create_file(dev, bt_attrs[i]) < 0)
			BT_ERR("Failed to create device attribute");

	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)
{
	int err;

	btaddconn = create_singlethread_workqueue("btaddconn");
	if (!btaddconn) {
		err = -ENOMEM;
		goto out;
	}

	btdelconn = create_singlethread_workqueue("btdelconn");
	if (!btdelconn) {
		err = -ENOMEM;
		goto out_del;
	}

	bt_platform = platform_device_register_simple("bluetooth", -1, NULL, 0);
	if (IS_ERR(bt_platform)) {
		err = PTR_ERR(bt_platform);
		goto out_platform;
	}

	err = bus_register(&bt_bus);
	if (err < 0)
		goto out_bus;

	bt_class = class_create(THIS_MODULE, "bluetooth");
	if (IS_ERR(bt_class)) {
		err = PTR_ERR(bt_class);
		goto out_class;
	}

	return 0;

out_class:
	bus_unregister(&bt_bus);
out_bus:
	platform_device_unregister(bt_platform);
out_platform:
	destroy_workqueue(btdelconn);
out_del:
	destroy_workqueue(btaddconn);
out:
	return err;
}

void bt_sysfs_cleanup(void)
{
	destroy_workqueue(btaddconn);

	destroy_workqueue(btdelconn);

	class_destroy(bt_class);

	bus_unregister(&bt_bus);

	platform_device_unregister(bt_platform);
}
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
27d35284 MH	6	#include <linux/platform_device.h>
27d35284 MH	7
1da177e4 LT	8	#include <net/bluetooth/bluetooth.h>
	9	#include <net/bluetooth/hci_core.h>
	10
	11	#ifndef CONFIG_BT_HCI_CORE_DEBUG
	12	#undef BT_DBG
	13	#define BT_DBG(D...)
	14	#endif
b6c06321 DY	15	static struct workqueue_struct *btaddconn;
b6c06321 DY	16	static struct workqueue_struct *btdelconn;
1da177e4	17
4d0eb004	18	static inline char *typetostr(int type)
1da177e4	19	{
4d0eb004	20	switch (type) {
0ac53939	21	case HCI_VIRTUAL:
4d0eb004 MH	22	return "VIRTUAL";
	23	case HCI_USB:
	24	return "USB";
	25	case HCI_PCCARD:
	26	return "PCCARD";
	27	case HCI_UART:
	28	return "UART";
	29	case HCI_RS232:
	30	return "RS232";
	31	case HCI_PCI:
	32	return "PCI";
0ac53939 MH	33	case HCI_SDIO:
0ac53939 MH	34	return "SDIO";
4d0eb004 MH	35	default:
	36	return "UNKNOWN";
	37	}
1da177e4 LT	38	}
1da177e4 LT	39
a91f2e39	40	static ssize_t show_type(struct device dev, struct device_attribute attr, char *buf)
1da177e4	41	{
a91f2e39	42	struct hci_dev *hdev = dev_get_drvdata(dev);
4d0eb004	43	return sprintf(buf, "%s\n", typetostr(hdev->type));
1da177e4 LT	44	}
1da177e4 LT	45
a9de9248 MH	46	static ssize_t show_name(struct device dev, struct device_attribute attr, char *buf)
	47	{
	48	struct hci_dev *hdev = dev_get_drvdata(dev);
	49	char name[249];
	50	int i;
	51
	52	for (i = 0; i < 248; i++)
	53	name[i] = hdev->dev_name[i];
	54
	55	name[248] = '\0';
	56	return sprintf(buf, "%s\n", name);
	57	}
	58
	59	static ssize_t show_class(struct device dev, struct device_attribute attr, char *buf)
	60	{
	61	struct hci_dev *hdev = dev_get_drvdata(dev);
	62	return sprintf(buf, "0x%.2x%.2x%.2x\n",
	63	hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
	64	}
	65
a91f2e39	66	static ssize_t show_address(struct device dev, struct device_attribute attr, char *buf)
1da177e4	67	{
a91f2e39	68	struct hci_dev *hdev = dev_get_drvdata(dev);
1da177e4 LT	69	bdaddr_t bdaddr;
	70	baswap(&bdaddr, &hdev->bdaddr);
	71	return sprintf(buf, "%s\n", batostr(&bdaddr));
	72	}
	73
a9de9248 MH	74	static ssize_t show_features(struct device dev, struct device_attribute attr, char *buf)
	75	{
	76	struct hci_dev *hdev = dev_get_drvdata(dev);
	77
	78	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	79	hdev->features[0], hdev->features[1],
	80	hdev->features[2], hdev->features[3],
	81	hdev->features[4], hdev->features[5],
	82	hdev->features[6], hdev->features[7]);
	83	}
	84
1143e5a6 MH	85	static ssize_t show_manufacturer(struct device dev, struct device_attribute attr, char *buf)
	86	{
	87	struct hci_dev *hdev = dev_get_drvdata(dev);
	88	return sprintf(buf, "%d\n", hdev->manufacturer);
	89	}
	90
	91	static ssize_t show_hci_version(struct device dev, struct device_attribute attr, char *buf)
	92	{
	93	struct hci_dev *hdev = dev_get_drvdata(dev);
	94	return sprintf(buf, "%d\n", hdev->hci_ver);
	95	}
	96
	97	static ssize_t show_hci_revision(struct device dev, struct device_attribute attr, char *buf)
	98	{
	99	struct hci_dev *hdev = dev_get_drvdata(dev);
	100	return sprintf(buf, "%d\n", hdev->hci_rev);
	101	}
	102
a91f2e39	103	static ssize_t show_inquiry_cache(struct device dev, struct device_attribute attr, char *buf)
1da177e4	104	{
a91f2e39	105	struct hci_dev *hdev = dev_get_drvdata(dev);
1da177e4 LT	106	struct inquiry_cache *cache = &hdev->inq_cache;
	107	struct inquiry_entry *e;
	108	int n = 0;
	109
	110	hci_dev_lock_bh(hdev);
	111
	112	for (e = cache->list; e; e = e->next) {
	113	struct inquiry_data *data = &e->data;
	114	bdaddr_t bdaddr;
	115	baswap(&bdaddr, &data->bdaddr);
a8bd28ba	116	n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
1da177e4	117	batostr(&bdaddr),
a8bd28ba MH	118	data->pscan_rep_mode, data->pscan_period_mode,
	119	data->pscan_mode, data->dev_class[2],
	120	data->dev_class[1], data->dev_class[0],
	121	__le16_to_cpu(data->clock_offset),
	122	data->rssi, data->ssp_mode, e->timestamp);
1da177e4 LT	123	}
	124
	125	hci_dev_unlock_bh(hdev);
	126	return n;
	127	}
	128
a91f2e39	129	static ssize_t show_idle_timeout(struct device dev, struct device_attribute attr, char *buf)
04837f64	130	{
a91f2e39	131	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	132	return sprintf(buf, "%d\n", hdev->idle_timeout);
	133	}
	134
a91f2e39	135	static ssize_t store_idle_timeout(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	136	{
a91f2e39	137	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	138	char *ptr;
	139	__u32 val;
	140
	141	val = simple_strtoul(buf, &ptr, 10);
	142	if (ptr == buf)
	143	return -EINVAL;
	144
	145	if (val != 0 && (val < 500 \|\| val > 3600000))
	146	return -EINVAL;
	147
	148	hdev->idle_timeout = val;
	149
	150	return count;
	151	}
	152
a91f2e39	153	static ssize_t show_sniff_max_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	154	{
a91f2e39	155	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	156	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	157	}
	158
a91f2e39	159	static ssize_t store_sniff_max_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	160	{
a91f2e39	161	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	162	char *ptr;
	163	__u16 val;
	164
	165	val = simple_strtoul(buf, &ptr, 10);
	166	if (ptr == buf)
	167	return -EINVAL;
	168
	169	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	170	return -EINVAL;
	171
	172	if (val < hdev->sniff_min_interval)
	173	return -EINVAL;
	174
	175	hdev->sniff_max_interval = val;
	176
	177	return count;
	178	}
	179
a91f2e39	180	static ssize_t show_sniff_min_interval(struct device dev, struct device_attribute attr, char *buf)
04837f64	181	{
a91f2e39	182	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	183	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	184	}
	185
a91f2e39	186	static ssize_t store_sniff_min_interval(struct device dev, struct device_attribute attr, const char *buf, size_t count)
04837f64	187	{
a91f2e39	188	struct hci_dev *hdev = dev_get_drvdata(dev);
04837f64 MH	189	char *ptr;
	190	__u16 val;
	191
	192	val = simple_strtoul(buf, &ptr, 10);
	193	if (ptr == buf)
	194	return -EINVAL;
	195
	196	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	197	return -EINVAL;
	198
	199	if (val > hdev->sniff_max_interval)
	200	return -EINVAL;
	201
	202	hdev->sniff_min_interval = val;
	203
	204	return count;
	205	}
	206
a91f2e39	207	static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
a9de9248 MH	208	static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
a9de9248 MH	209	static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
a91f2e39	210	static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
a9de9248	211	static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
1143e5a6 MH	212	static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
	213	static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
	214	static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
a91f2e39	215	static DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
1da177e4	216
a91f2e39	217	static DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
04837f64	218	show_idle_timeout, store_idle_timeout);
a91f2e39	219	static DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
04837f64	220	show_sniff_max_interval, store_sniff_max_interval);
a91f2e39	221	static DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
04837f64 MH	222	show_sniff_min_interval, store_sniff_min_interval);
04837f64 MH	223
a91f2e39	224	static struct device_attribute *bt_attrs[] = {
a91f2e39	225	&dev_attr_type,
a9de9248 MH	226	&dev_attr_name,
a9de9248 MH	227	&dev_attr_class,
a91f2e39	228	&dev_attr_address,
a9de9248	229	&dev_attr_features,
1143e5a6 MH	230	&dev_attr_manufacturer,
	231	&dev_attr_hci_version,
	232	&dev_attr_hci_revision,
a91f2e39 MH	233	&dev_attr_inquiry_cache,
	234	&dev_attr_idle_timeout,
	235	&dev_attr_sniff_max_interval,
	236	&dev_attr_sniff_min_interval,
1da177e4 LT	237	NULL
	238	};
	239
b219e3ac MH	240	static ssize_t show_conn_type(struct device dev, struct device_attribute attr, char *buf)
	241	{
	242	struct hci_conn *conn = dev_get_drvdata(dev);
	243	return sprintf(buf, "%s\n", conn->type == ACL_LINK ? "ACL" : "SCO");
	244	}
	245
	246	static ssize_t show_conn_address(struct device dev, struct device_attribute attr, char *buf)
	247	{
	248	struct hci_conn *conn = dev_get_drvdata(dev);
	249	bdaddr_t bdaddr;
	250	baswap(&bdaddr, &conn->dst);
	251	return sprintf(buf, "%s\n", batostr(&bdaddr));
	252	}
	253
a8bd28ba MH	254	static ssize_t show_conn_features(struct device dev, struct device_attribute attr, char *buf)
	255	{
	256	struct hci_conn *conn = dev_get_drvdata(dev);
	257
	258	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
	259	conn->features[0], conn->features[1],
	260	conn->features[2], conn->features[3],
	261	conn->features[4], conn->features[5],
	262	conn->features[6], conn->features[7]);
	263	}
	264
b219e3ac MH	265	#define CONN_ATTR(_name,_mode,_show,_store) \
	266	struct device_attribute conn_attr_##_name = __ATTR(_name,_mode,_show,_store)
	267
	268	static CONN_ATTR(type, S_IRUGO, show_conn_type, NULL);
	269	static CONN_ATTR(address, S_IRUGO, show_conn_address, NULL);
a8bd28ba	270	static CONN_ATTR(features, S_IRUGO, show_conn_features, NULL);
b219e3ac MH	271
	272	static struct device_attribute *conn_attrs[] = {
	273	&conn_attr_type,
	274	&conn_attr_address,
a8bd28ba	275	&conn_attr_features,
b219e3ac MH	276	NULL
	277	};
	278
a91f2e39	279	struct class *bt_class = NULL;
be9d1227 MH	280	EXPORT_SYMBOL_GPL(bt_class);
be9d1227 MH	281
27d35284 MH	282	static struct bus_type bt_bus = {
	283	.name = "bluetooth",
	284	};
	285
	286	static struct platform_device *bt_platform;
	287
a91f2e39 MH	288	static void bt_release(struct device *dev)
a91f2e39 MH	289	{
b219e3ac MH	290	void *data = dev_get_drvdata(dev);
	291	kfree(data);
	292	}
	293
c4028958	294	static void add_conn(struct work_struct *work)
b219e3ac	295	{
c4028958	296	struct hci_conn *conn = container_of(work, struct hci_conn, work);
b219e3ac MH	297	int i;
b219e3ac MH	298
b6c06321	299	flush_workqueue(btdelconn);
5396c935	300
c893779e	301	if (device_add(&conn->dev) < 0) {
df5c37ea MH	302	BT_ERR("Failed to register connection device");
	303	return;
	304	}
b219e3ac MH	305
b219e3ac MH	306	for (i = 0; conn_attrs[i]; i++)
df5c37ea MH	307	if (device_create_file(&conn->dev, conn_attrs[i]) < 0)
df5c37ea MH	308	BT_ERR("Failed to create connection attribute");
b219e3ac MH	309	}
	310
	311	void hci_conn_add_sysfs(struct hci_conn *conn)
	312	{
	313	struct hci_dev *hdev = conn->hdev;
b219e3ac MH	314
	315	BT_DBG("conn %p", conn);
	316
e52726de MH	317	conn->dev.bus = &bt_bus;
	318	conn->dev.parent = &hdev->dev;
	319
b219e3ac MH	320	conn->dev.release = bt_release;
b219e3ac MH	321
7d0db0a3 MH	322	snprintf(conn->dev.bus_id, BUS_ID_SIZE, "%s:%d",
7d0db0a3 MH	323	hdev->name, conn->handle);
b219e3ac MH	324
	325	dev_set_drvdata(&conn->dev, conn);
	326
c893779e MH	327	device_initialize(&conn->dev);
c893779e MH	328
c4028958	329	INIT_WORK(&conn->work, add_conn);
b219e3ac	330
b6c06321	331	queue_work(btaddconn, &conn->work);
b219e3ac MH	332	}
b219e3ac MH	333
8ac62dc7 DY	334	/*
	335	* The rfcomm tty device will possibly retain even when conn
	336	* is down, and sysfs doesn't support move zombie device,
	337	* so we should move the device before conn device is destroyed.
	338	*/
acea6852 DY	339	static int __match_tty(struct device dev, void data)
acea6852 DY	340	{
8ac62dc7	341	return !strncmp(dev->bus_id, "rfcomm", 6);
acea6852 DY	342	}
acea6852 DY	343
c4028958	344	static void del_conn(struct work_struct *work)
b219e3ac	345	{
c4028958	346	struct hci_conn *conn = container_of(work, struct hci_conn, work);
0cd63c80	347	struct hci_dev *hdev = conn->hdev;
acea6852	348
988d0093 DM	349	while (1) {
	350	struct device *dev;
	351
	352	dev = device_find_child(&conn->dev, NULL, __match_tty);
	353	if (!dev)
	354	break;
acea6852 DY	355	device_move(dev, NULL);
	356	put_device(dev);
	357	}
0cd63c80	358
b219e3ac	359	device_del(&conn->dev);
38b7da09	360	put_device(&conn->dev);
0cd63c80	361	hci_dev_put(hdev);
b219e3ac MH	362	}
	363
	364	void hci_conn_del_sysfs(struct hci_conn *conn)
	365	{
	366	BT_DBG("conn %p", conn);
	367
c893779e MH	368	if (!device_is_registered(&conn->dev))
	369	return;
	370
c4028958	371	INIT_WORK(&conn->work, del_conn);
b219e3ac	372
b6c06321	373	queue_work(btdelconn, &conn->work);
a91f2e39 MH	374	}
a91f2e39 MH	375
1da177e4 LT	376	int hci_register_sysfs(struct hci_dev *hdev)
1da177e4 LT	377	{
a91f2e39	378	struct device *dev = &hdev->dev;
1da177e4 LT	379	unsigned int i;
	380	int err;
	381
	382	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
	383
53c1d4b0	384	dev->bus = &bt_bus;
e9c4bec6	385	dev->parent = hdev->parent;
a91f2e39 MH	386
a91f2e39 MH	387	strlcpy(dev->bus_id, hdev->name, BUS_ID_SIZE);
1da177e4	388
a91f2e39	389	dev->release = bt_release;
27d35284	390
a91f2e39	391	dev_set_drvdata(dev, hdev);
27d35284	392
a91f2e39	393	err = device_register(dev);
1da177e4 LT	394	if (err < 0)
	395	return err;
	396
	397	for (i = 0; bt_attrs[i]; i++)
df5c37ea MH	398	if (device_create_file(dev, bt_attrs[i]) < 0)
df5c37ea MH	399	BT_ERR("Failed to create device attribute");
1da177e4 LT	400
	401	return 0;
	402	}
	403
	404	void hci_unregister_sysfs(struct hci_dev *hdev)
	405	{
1da177e4 LT	406	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
1da177e4 LT	407
4d0eb004	408	device_del(&hdev->dev);
1da177e4 LT	409	}
	410
	411	int __init bt_sysfs_init(void)
	412	{
27d35284 MH	413	int err;
27d35284 MH	414
b6c06321 DY	415	btaddconn = create_singlethread_workqueue("btaddconn");
	416	if (!btaddconn) {
	417	err = -ENOMEM;
	418	goto out;
	419	}
5396c935	420
b6c06321 DY	421	btdelconn = create_singlethread_workqueue("btdelconn");
	422	if (!btdelconn) {
	423	err = -ENOMEM;
	424	goto out_del;
	425	}
	426
27d35284	427	bt_platform = platform_device_register_simple("bluetooth", -1, NULL, 0);
b6c06321 DY	428	if (IS_ERR(bt_platform)) {
	429	err = PTR_ERR(bt_platform);
	430	goto out_platform;
	431	}
27d35284 MH	432
27d35284 MH	433	err = bus_register(&bt_bus);
b6c06321 DY	434	if (err < 0)
b6c06321 DY	435	goto out_bus;
27d35284	436
a91f2e39 MH	437	bt_class = class_create(THIS_MODULE, "bluetooth");
a91f2e39 MH	438	if (IS_ERR(bt_class)) {
b6c06321 DY	439	err = PTR_ERR(bt_class);
b6c06321 DY	440	goto out_class;
27d35284 MH	441	}
	442
	443	return 0;
b6c06321 DY	444
	445	out_class:
	446	bus_unregister(&bt_bus);
	447	out_bus:
	448	platform_device_unregister(bt_platform);
	449	out_platform:
	450	destroy_workqueue(btdelconn);
	451	out_del:
	452	destroy_workqueue(btaddconn);
	453	out:
	454	return err;
1da177e4 LT	455	}
1da177e4 LT	456
860e13b5	457	void bt_sysfs_cleanup(void)
1da177e4	458	{
b6c06321	459	destroy_workqueue(btaddconn);
5396c935	460
b6c06321	461	destroy_workqueue(btdelconn);
5396c935	462
a91f2e39	463	class_destroy(bt_class);
5396c935	464
27d35284	465	bus_unregister(&bt_bus);
5396c935	466
27d35284	467	platform_device_unregister(bt_platform);
1da177e4	468	}