Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* Bluetooth HCI driver model support. */ |
2 | ||
3a9a231d | 3 | #include <linux/module.h> |
1da177e4 LT |
4 | |
5 | #include <net/bluetooth/bluetooth.h> | |
6 | #include <net/bluetooth/hci_core.h> | |
7 | ||
aef7d97c | 8 | static struct class *bt_class; |
90855d7b | 9 | |
90855d7b MH |
10 | static void bt_link_release(struct device *dev) |
11 | { | |
2dd10688 DH |
12 | struct hci_conn *conn = to_hci_conn(dev); |
13 | kfree(conn); | |
90855d7b MH |
14 | } |
15 | ||
9374bf18 | 16 | static const struct device_type bt_link = { |
90855d7b | 17 | .name = "link", |
90855d7b MH |
18 | .release = bt_link_release, |
19 | }; | |
20 | ||
6d438e33 GP |
21 | /* |
22 | * The rfcomm tty device will possibly retain even when conn | |
23 | * is down, and sysfs doesn't support move zombie device, | |
24 | * so we should move the device before conn device is destroyed. | |
25 | */ | |
26 | static int __match_tty(struct device *dev, void *data) | |
27 | { | |
28 | return !strncmp(dev_name(dev), "rfcomm", 6); | |
29 | } | |
30 | ||
31 | void hci_conn_init_sysfs(struct hci_conn *conn) | |
32 | { | |
33 | struct hci_dev *hdev = conn->hdev; | |
34 | ||
35 | BT_DBG("conn %p", conn); | |
36 | ||
37 | conn->dev.type = &bt_link; | |
38 | conn->dev.class = bt_class; | |
39 | conn->dev.parent = &hdev->dev; | |
40 | ||
41 | device_initialize(&conn->dev); | |
42 | } | |
43 | ||
44 | void hci_conn_add_sysfs(struct hci_conn *conn) | |
90855d7b | 45 | { |
457ca7bb | 46 | struct hci_dev *hdev = conn->hdev; |
90855d7b | 47 | |
6d438e33 GP |
48 | BT_DBG("conn %p", conn); |
49 | ||
457ca7bb MH |
50 | dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle); |
51 | ||
90855d7b MH |
52 | if (device_add(&conn->dev) < 0) { |
53 | BT_ERR("Failed to register connection device"); | |
54 | return; | |
55 | } | |
384943ec MH |
56 | |
57 | hci_dev_hold(hdev); | |
90855d7b MH |
58 | } |
59 | ||
6d438e33 | 60 | void hci_conn_del_sysfs(struct hci_conn *conn) |
90855d7b | 61 | { |
90855d7b MH |
62 | struct hci_dev *hdev = conn->hdev; |
63 | ||
a67e899c MH |
64 | if (!device_is_registered(&conn->dev)) |
65 | return; | |
f3784d83 | 66 | |
90855d7b MH |
67 | while (1) { |
68 | struct device *dev; | |
69 | ||
70 | dev = device_find_child(&conn->dev, NULL, __match_tty); | |
71 | if (!dev) | |
72 | break; | |
ffa6a705 | 73 | device_move(dev, NULL, DPM_ORDER_DEV_LAST); |
90855d7b MH |
74 | put_device(dev); |
75 | } | |
76 | ||
77 | device_del(&conn->dev); | |
384943ec | 78 | |
90855d7b MH |
79 | hci_dev_put(hdev); |
80 | } | |
81 | ||
90855d7b | 82 | static void bt_host_release(struct device *dev) |
a91f2e39 | 83 | { |
2dd10688 DH |
84 | struct hci_dev *hdev = to_hci_dev(dev); |
85 | kfree(hdev); | |
46e06531 | 86 | module_put(THIS_MODULE); |
b219e3ac MH |
87 | } |
88 | ||
9374bf18 | 89 | static const struct device_type bt_host = { |
90855d7b | 90 | .name = "host", |
90855d7b MH |
91 | .release = bt_host_release, |
92 | }; | |
a91f2e39 | 93 | |
0ac7e700 DH |
94 | void hci_init_sysfs(struct hci_dev *hdev) |
95 | { | |
96 | struct device *dev = &hdev->dev; | |
97 | ||
98 | dev->type = &bt_host; | |
99 | dev->class = bt_class; | |
100 | ||
46e06531 | 101 | __module_get(THIS_MODULE); |
0ac7e700 DH |
102 | device_initialize(dev); |
103 | } | |
104 | ||
1da177e4 LT |
105 | int __init bt_sysfs_init(void) |
106 | { | |
a91f2e39 | 107 | bt_class = class_create(THIS_MODULE, "bluetooth"); |
27d35284 | 108 | |
8c6ffba0 | 109 | return PTR_ERR_OR_ZERO(bt_class); |
1da177e4 LT |
110 | } |
111 | ||
860e13b5 | 112 | void bt_sysfs_cleanup(void) |
1da177e4 | 113 | { |
a91f2e39 | 114 | class_destroy(bt_class); |
1da177e4 | 115 | } |