[GitHub/mt8127/android_kernel_alcatel_ttab.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

static ssize_t show_name(struct class_device *cdev, char *buf)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	return sprintf(buf, "%s\n", hdev->name);
}

static ssize_t show_type(struct class_device *cdev, char *buf)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	return sprintf(buf, "%d\n", hdev->type);
}

static ssize_t show_address(struct class_device *cdev, char *buf)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	bdaddr_t bdaddr;
	baswap(&bdaddr, &hdev->bdaddr);
	return sprintf(buf, "%s\n", batostr(&bdaddr));
}

static ssize_t show_flags(struct class_device *cdev, char *buf)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	return sprintf(buf, "0x%lx\n", hdev->flags);
}

static ssize_t show_inquiry_cache(struct class_device *cdev, char *buf)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	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 %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, e->timestamp);
	}

	hci_dev_unlock_bh(hdev);
	return n;
}

static ssize_t show_idle_timeout(struct class_device *cdev, char *buf)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	return sprintf(buf, "%d\n", hdev->idle_timeout);
}

static ssize_t store_idle_timeout(struct class_device *cdev, const char *buf, size_t count)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	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 class_device *cdev, char *buf)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
}

static ssize_t store_sniff_max_interval(struct class_device *cdev, const char *buf, size_t count)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	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 class_device *cdev, char *buf)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
}

static ssize_t store_sniff_min_interval(struct class_device *cdev, const char *buf, size_t count)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	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 CLASS_DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
static CLASS_DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
static CLASS_DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);

static CLASS_DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
				show_idle_timeout, store_idle_timeout);
static CLASS_DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
				show_sniff_max_interval, store_sniff_max_interval);
static CLASS_DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
				show_sniff_min_interval, store_sniff_min_interval);

static struct class_device_attribute *bt_attrs[] = {
	&class_device_attr_name,
	&class_device_attr_type,
	&class_device_attr_address,
	&class_device_attr_flags,
	&class_device_attr_inquiry_cache,
	&class_device_attr_idle_timeout,
	&class_device_attr_sniff_max_interval,
	&class_device_attr_sniff_min_interval,
	NULL
};

#ifdef CONFIG_HOTPLUG
static int bt_uevent(struct class_device *cdev, char **envp, int num_envp, char *buf, int size)
{
	struct hci_dev *hdev = class_get_devdata(cdev);
	int n, i = 0;

	envp[i++] = buf;
	n = snprintf(buf, size, "INTERFACE=%s", hdev->name) + 1;
	buf += n;
	size -= n;

	if ((size <= 0) || (i >= num_envp))
		return -ENOMEM;

	envp[i] = NULL;
	return 0;
}
#endif

static void bt_release(struct class_device *cdev)
{
	struct hci_dev *hdev = class_get_devdata(cdev);

	kfree(hdev);
}

struct class bt_class = {
	.name		= "bluetooth",
	.release	= bt_release,
#ifdef CONFIG_HOTPLUG
	.uevent		= bt_uevent,
#endif
};

EXPORT_SYMBOL_GPL(bt_class);

int hci_register_sysfs(struct hci_dev *hdev)
{
	struct class_device *cdev = &hdev->class_dev;
	unsigned int i;
	int err;

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

	cdev->class = &bt_class;
	class_set_devdata(cdev, hdev);

	strlcpy(cdev->class_id, hdev->name, BUS_ID_SIZE);
	err = class_device_register(cdev);
	if (err < 0)
		return err;

	for (i = 0; bt_attrs[i]; i++)
		class_device_create_file(cdev, bt_attrs[i]);

	return 0;
}

void hci_unregister_sysfs(struct hci_dev *hdev)
{
	struct class_device * cdev = &hdev->class_dev;

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

	class_device_del(cdev);
}

int __init bt_sysfs_init(void)
{
	return class_register(&bt_class);
}

void __exit bt_sysfs_cleanup(void)
{
	class_unregister(&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
	13
	14	static ssize_t show_name(struct class_device cdev, char buf)
	15	{
	16	struct hci_dev *hdev = class_get_devdata(cdev);
	17	return sprintf(buf, "%s\n", hdev->name);
	18	}
	19
	20	static ssize_t show_type(struct class_device cdev, char buf)
	21	{
	22	struct hci_dev *hdev = class_get_devdata(cdev);
	23	return sprintf(buf, "%d\n", hdev->type);
	24	}
	25
	26	static ssize_t show_address(struct class_device cdev, char buf)
	27	{
	28	struct hci_dev *hdev = class_get_devdata(cdev);
	29	bdaddr_t bdaddr;
	30	baswap(&bdaddr, &hdev->bdaddr);
	31	return sprintf(buf, "%s\n", batostr(&bdaddr));
	32	}
	33
	34	static ssize_t show_flags(struct class_device cdev, char buf)
	35	{
	36	struct hci_dev *hdev = class_get_devdata(cdev);
	37	return sprintf(buf, "0x%lx\n", hdev->flags);
	38	}
	39
	40	static ssize_t show_inquiry_cache(struct class_device cdev, char buf)
	41	{
	42	struct hci_dev *hdev = class_get_devdata(cdev);
	43	struct inquiry_cache *cache = &hdev->inq_cache;
	44	struct inquiry_entry *e;
	45	int n = 0;
	46
	47	hci_dev_lock_bh(hdev);
	48
	49	for (e = cache->list; e; e = e->next) {
	50	struct inquiry_data *data = &e->data;
	51	bdaddr_t bdaddr;
	52	baswap(&bdaddr, &data->bdaddr);
	53	n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %u\n",
	54	batostr(&bdaddr),
	55	data->pscan_rep_mode, data->pscan_period_mode, data->pscan_mode,
	56	data->dev_class[2], data->dev_class[1], data->dev_class[0],
	57	__le16_to_cpu(data->clock_offset), data->rssi, e->timestamp);
	58	}
	59
	60	hci_dev_unlock_bh(hdev);
	61	return n;
	62	}
	63
04837f64 MH	64	static ssize_t show_idle_timeout(struct class_device cdev, char buf)
	65	{
	66	struct hci_dev *hdev = class_get_devdata(cdev);
	67	return sprintf(buf, "%d\n", hdev->idle_timeout);
	68	}
	69
	70	static ssize_t store_idle_timeout(struct class_device cdev, const char buf, size_t count)
	71	{
	72	struct hci_dev *hdev = class_get_devdata(cdev);
	73	char *ptr;
	74	__u32 val;
	75
	76	val = simple_strtoul(buf, &ptr, 10);
	77	if (ptr == buf)
	78	return -EINVAL;
	79
	80	if (val != 0 && (val < 500 \|\| val > 3600000))
	81	return -EINVAL;
	82
	83	hdev->idle_timeout = val;
	84
	85	return count;
	86	}
	87
	88	static ssize_t show_sniff_max_interval(struct class_device cdev, char buf)
	89	{
	90	struct hci_dev *hdev = class_get_devdata(cdev);
	91	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
	92	}
	93
	94	static ssize_t store_sniff_max_interval(struct class_device cdev, const char buf, size_t count)
	95	{
	96	struct hci_dev *hdev = class_get_devdata(cdev);
	97	char *ptr;
	98	__u16 val;
	99
	100	val = simple_strtoul(buf, &ptr, 10);
	101	if (ptr == buf)
	102	return -EINVAL;
	103
	104	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
	105	return -EINVAL;
	106
	107	if (val < hdev->sniff_min_interval)
	108	return -EINVAL;
	109
	110	hdev->sniff_max_interval = val;
	111
	112	return count;
	113	}
	114
	115	static ssize_t show_sniff_min_interval(struct class_device cdev, char buf)
	116	{
	117	struct hci_dev *hdev = class_get_devdata(cdev);
	118	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
	119	}
	120
	121	static ssize_t store_sniff_min_interval(struct class_device cdev, const char buf, size_t count)
	122	{
	123	struct hci_dev *hdev = class_get_devdata(cdev);
	124	char *ptr;
	125	__u16 val;
	126
	127	val = simple_strtoul(buf, &ptr, 10);
128	if (ptr == buf)
129	return -EINVAL;
130
131	if (val < 0x0002 \|\| val > 0xFFFE \|\| val % 2)
132	return -EINVAL;
133
134	if (val > hdev->sniff_max_interval)
135	return -EINVAL;
136
137	hdev->sniff_min_interval = val;
138
139	return count;
140	}
141
1da177e4 LT	142	static CLASS_DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
	143	static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
	144	static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
	145	static CLASS_DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
	146	static CLASS_DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
	147
04837f64 MH	148	static CLASS_DEVICE_ATTR(idle_timeout, S_IRUGO \| S_IWUSR,
	149	show_idle_timeout, store_idle_timeout);
	150	static CLASS_DEVICE_ATTR(sniff_max_interval, S_IRUGO \| S_IWUSR,
	151	show_sniff_max_interval, store_sniff_max_interval);
	152	static CLASS_DEVICE_ATTR(sniff_min_interval, S_IRUGO \| S_IWUSR,
	153	show_sniff_min_interval, store_sniff_min_interval);
	154
1da177e4 LT	155	static struct class_device_attribute *bt_attrs[] = {
	156	&class_device_attr_name,
	157	&class_device_attr_type,
	158	&class_device_attr_address,
	159	&class_device_attr_flags,
	160	&class_device_attr_inquiry_cache,
04837f64 MH	161	&class_device_attr_idle_timeout,
	162	&class_device_attr_sniff_max_interval,
	163	&class_device_attr_sniff_min_interval,
1da177e4 LT	164	NULL
	165	};
	166
	167	#ifdef CONFIG_HOTPLUG
312c004d	168	static int bt_uevent(struct class_device cdev, char envp, int num_envp, char buf, int size)
1da177e4 LT	169	{
	170	struct hci_dev *hdev = class_get_devdata(cdev);
	171	int n, i = 0;
	172
	173	envp[i++] = buf;
	174	n = snprintf(buf, size, "INTERFACE=%s", hdev->name) + 1;
	175	buf += n;
	176	size -= n;
	177
	178	if ((size <= 0) \|\| (i >= num_envp))
	179	return -ENOMEM;
	180
	181	envp[i] = NULL;
	182	return 0;
	183	}
	184	#endif
	185
	186	static void bt_release(struct class_device *cdev)
	187	{
	188	struct hci_dev *hdev = class_get_devdata(cdev);
	189
	190	kfree(hdev);
	191	}
	192
be9d1227	193	struct class bt_class = {
1da177e4 LT	194	.name = "bluetooth",
	195	.release = bt_release,
	196	#ifdef CONFIG_HOTPLUG
312c004d	197	.uevent = bt_uevent,
1da177e4 LT	198	#endif
	199	};
	200
be9d1227 MH	201	EXPORT_SYMBOL_GPL(bt_class);
be9d1227 MH	202
1da177e4 LT	203	int hci_register_sysfs(struct hci_dev *hdev)
	204	{
	205	struct class_device *cdev = &hdev->class_dev;
	206	unsigned int i;
	207	int err;
	208
	209	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
	210
	211	cdev->class = &bt_class;
	212	class_set_devdata(cdev, hdev);
	213
	214	strlcpy(cdev->class_id, hdev->name, BUS_ID_SIZE);
	215	err = class_device_register(cdev);
	216	if (err < 0)
	217	return err;
	218
	219	for (i = 0; bt_attrs[i]; i++)
	220	class_device_create_file(cdev, bt_attrs[i]);
	221
	222	return 0;
	223	}
	224
	225	void hci_unregister_sysfs(struct hci_dev *hdev)
	226	{
	227	struct class_device * cdev = &hdev->class_dev;
	228
	229	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
	230
	231	class_device_del(cdev);
	232	}
	233
	234	int __init bt_sysfs_init(void)
	235	{
	236	return class_register(&bt_class);
	237	}
	238
	239	void __exit bt_sysfs_cleanup(void)
	240	{
	241	class_unregister(&bt_class);
	242	}