blob: 0ed38740388c374262d90edac9eff42741a0e0da [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* Bluetooth HCI driver model support. */
2
3#include <linux/config.h>
4#include <linux/kernel.h>
5#include <linux/init.h>
6
7#include <net/bluetooth/bluetooth.h>
8#include <net/bluetooth/hci_core.h>
9
10#ifndef CONFIG_BT_HCI_CORE_DEBUG
11#undef BT_DBG
12#define BT_DBG(D...)
13#endif
14
15static ssize_t show_name(struct class_device *cdev, char *buf)
16{
17 struct hci_dev *hdev = class_get_devdata(cdev);
18 return sprintf(buf, "%s\n", hdev->name);
19}
20
21static ssize_t show_type(struct class_device *cdev, char *buf)
22{
23 struct hci_dev *hdev = class_get_devdata(cdev);
24 return sprintf(buf, "%d\n", hdev->type);
25}
26
27static ssize_t show_address(struct class_device *cdev, char *buf)
28{
29 struct hci_dev *hdev = class_get_devdata(cdev);
30 bdaddr_t bdaddr;
31 baswap(&bdaddr, &hdev->bdaddr);
32 return sprintf(buf, "%s\n", batostr(&bdaddr));
33}
34
35static ssize_t show_flags(struct class_device *cdev, char *buf)
36{
37 struct hci_dev *hdev = class_get_devdata(cdev);
38 return sprintf(buf, "0x%lx\n", hdev->flags);
39}
40
41static ssize_t show_inquiry_cache(struct class_device *cdev, char *buf)
42{
43 struct hci_dev *hdev = class_get_devdata(cdev);
44 struct inquiry_cache *cache = &hdev->inq_cache;
45 struct inquiry_entry *e;
46 int n = 0;
47
48 hci_dev_lock_bh(hdev);
49
50 for (e = cache->list; e; e = e->next) {
51 struct inquiry_data *data = &e->data;
52 bdaddr_t bdaddr;
53 baswap(&bdaddr, &data->bdaddr);
54 n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %u\n",
55 batostr(&bdaddr),
56 data->pscan_rep_mode, data->pscan_period_mode, data->pscan_mode,
57 data->dev_class[2], data->dev_class[1], data->dev_class[0],
58 __le16_to_cpu(data->clock_offset), data->rssi, e->timestamp);
59 }
60
61 hci_dev_unlock_bh(hdev);
62 return n;
63}
64
65static CLASS_DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
66static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
67static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
68static CLASS_DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
69static CLASS_DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
70
71static struct class_device_attribute *bt_attrs[] = {
72 &class_device_attr_name,
73 &class_device_attr_type,
74 &class_device_attr_address,
75 &class_device_attr_flags,
76 &class_device_attr_inquiry_cache,
77 NULL
78};
79
80#ifdef CONFIG_HOTPLUG
Kay Sievers312c0042005-11-16 09:00:00 +010081static int bt_uevent(struct class_device *cdev, char **envp, int num_envp, char *buf, int size)
Linus Torvalds1da177e2005-04-16 15:20:36 -070082{
83 struct hci_dev *hdev = class_get_devdata(cdev);
84 int n, i = 0;
85
86 envp[i++] = buf;
87 n = snprintf(buf, size, "INTERFACE=%s", hdev->name) + 1;
88 buf += n;
89 size -= n;
90
91 if ((size <= 0) || (i >= num_envp))
92 return -ENOMEM;
93
94 envp[i] = NULL;
95 return 0;
96}
97#endif
98
99static void bt_release(struct class_device *cdev)
100{
101 struct hci_dev *hdev = class_get_devdata(cdev);
102
103 kfree(hdev);
104}
105
Marcel Holtmannbe9d1222005-11-08 09:57:38 -0800106struct class bt_class = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 .name = "bluetooth",
108 .release = bt_release,
109#ifdef CONFIG_HOTPLUG
Kay Sievers312c0042005-11-16 09:00:00 +0100110 .uevent = bt_uevent,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111#endif
112};
113
Marcel Holtmannbe9d1222005-11-08 09:57:38 -0800114EXPORT_SYMBOL_GPL(bt_class);
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116int hci_register_sysfs(struct hci_dev *hdev)
117{
118 struct class_device *cdev = &hdev->class_dev;
119 unsigned int i;
120 int err;
121
122 BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
123
124 cdev->class = &bt_class;
125 class_set_devdata(cdev, hdev);
126
127 strlcpy(cdev->class_id, hdev->name, BUS_ID_SIZE);
128 err = class_device_register(cdev);
129 if (err < 0)
130 return err;
131
132 for (i = 0; bt_attrs[i]; i++)
133 class_device_create_file(cdev, bt_attrs[i]);
134
135 return 0;
136}
137
138void hci_unregister_sysfs(struct hci_dev *hdev)
139{
140 struct class_device * cdev = &hdev->class_dev;
141
142 BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
143
144 class_device_del(cdev);
145}
146
147int __init bt_sysfs_init(void)
148{
149 return class_register(&bt_class);
150}
151
152void __exit bt_sysfs_cleanup(void)
153{
154 class_unregister(&bt_class);
155}