Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* 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 | ||
15 | static 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 | ||
21 | static 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 | ||
27 | static 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 | ||
35 | static 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 | ||
41 | static 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 | ||
65 | static CLASS_DEVICE_ATTR(name, S_IRUGO, show_name, NULL); | |
66 | static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL); | |
67 | static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL); | |
68 | static CLASS_DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL); | |
69 | static CLASS_DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL); | |
70 | ||
71 | static 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 | |
81 | static int bt_hotplug(struct class_device *cdev, char **envp, int num_envp, char *buf, int size) | |
82 | { | |
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 | ||
99 | static void bt_release(struct class_device *cdev) | |
100 | { | |
101 | struct hci_dev *hdev = class_get_devdata(cdev); | |
102 | ||
103 | kfree(hdev); | |
104 | } | |
105 | ||
106 | static struct class bt_class = { | |
107 | .name = "bluetooth", | |
108 | .release = bt_release, | |
109 | #ifdef CONFIG_HOTPLUG | |
110 | .hotplug = bt_hotplug, | |
111 | #endif | |
112 | }; | |
113 | ||
114 | int hci_register_sysfs(struct hci_dev *hdev) | |
115 | { | |
116 | struct class_device *cdev = &hdev->class_dev; | |
117 | unsigned int i; | |
118 | int err; | |
119 | ||
120 | BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type); | |
121 | ||
122 | cdev->class = &bt_class; | |
123 | class_set_devdata(cdev, hdev); | |
124 | ||
125 | strlcpy(cdev->class_id, hdev->name, BUS_ID_SIZE); | |
126 | err = class_device_register(cdev); | |
127 | if (err < 0) | |
128 | return err; | |
129 | ||
130 | for (i = 0; bt_attrs[i]; i++) | |
131 | class_device_create_file(cdev, bt_attrs[i]); | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
136 | void hci_unregister_sysfs(struct hci_dev *hdev) | |
137 | { | |
138 | struct class_device * cdev = &hdev->class_dev; | |
139 | ||
140 | BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type); | |
141 | ||
142 | class_device_del(cdev); | |
143 | } | |
144 | ||
145 | int __init bt_sysfs_init(void) | |
146 | { | |
147 | return class_register(&bt_class); | |
148 | } | |
149 | ||
150 | void __exit bt_sysfs_cleanup(void) | |
151 | { | |
152 | class_unregister(&bt_class); | |
153 | } |