Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* Bluetooth HCI driver model support. */ |
2 | ||
1da177e4 LT |
3 | #include <linux/kernel.h> |
4 | #include <linux/init.h> | |
5 | ||
27d35284 MH |
6 | #include <linux/platform_device.h> |
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 | |
15 | ||
4d0eb004 | 16 | static inline char *typetostr(int type) |
1da177e4 | 17 | { |
4d0eb004 | 18 | switch (type) { |
0ac53939 | 19 | case HCI_VIRTUAL: |
4d0eb004 MH |
20 | return "VIRTUAL"; |
21 | case HCI_USB: | |
22 | return "USB"; | |
23 | case HCI_PCCARD: | |
24 | return "PCCARD"; | |
25 | case HCI_UART: | |
26 | return "UART"; | |
27 | case HCI_RS232: | |
28 | return "RS232"; | |
29 | case HCI_PCI: | |
30 | return "PCI"; | |
0ac53939 MH |
31 | case HCI_SDIO: |
32 | return "SDIO"; | |
4d0eb004 MH |
33 | default: |
34 | return "UNKNOWN"; | |
35 | } | |
1da177e4 LT |
36 | } |
37 | ||
a91f2e39 | 38 | static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 | 39 | { |
a91f2e39 | 40 | struct hci_dev *hdev = dev_get_drvdata(dev); |
4d0eb004 | 41 | return sprintf(buf, "%s\n", typetostr(hdev->type)); |
1da177e4 LT |
42 | } |
43 | ||
a91f2e39 | 44 | static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 | 45 | { |
a91f2e39 | 46 | struct hci_dev *hdev = dev_get_drvdata(dev); |
1da177e4 LT |
47 | bdaddr_t bdaddr; |
48 | baswap(&bdaddr, &hdev->bdaddr); | |
49 | return sprintf(buf, "%s\n", batostr(&bdaddr)); | |
50 | } | |
51 | ||
1143e5a6 MH |
52 | static ssize_t show_manufacturer(struct device *dev, struct device_attribute *attr, char *buf) |
53 | { | |
54 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
55 | return sprintf(buf, "%d\n", hdev->manufacturer); | |
56 | } | |
57 | ||
58 | static ssize_t show_hci_version(struct device *dev, struct device_attribute *attr, char *buf) | |
59 | { | |
60 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
61 | return sprintf(buf, "%d\n", hdev->hci_ver); | |
62 | } | |
63 | ||
64 | static ssize_t show_hci_revision(struct device *dev, struct device_attribute *attr, char *buf) | |
65 | { | |
66 | struct hci_dev *hdev = dev_get_drvdata(dev); | |
67 | return sprintf(buf, "%d\n", hdev->hci_rev); | |
68 | } | |
69 | ||
a91f2e39 | 70 | static ssize_t show_inquiry_cache(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 | 71 | { |
a91f2e39 | 72 | struct hci_dev *hdev = dev_get_drvdata(dev); |
1da177e4 LT |
73 | struct inquiry_cache *cache = &hdev->inq_cache; |
74 | struct inquiry_entry *e; | |
75 | int n = 0; | |
76 | ||
77 | hci_dev_lock_bh(hdev); | |
78 | ||
79 | for (e = cache->list; e; e = e->next) { | |
80 | struct inquiry_data *data = &e->data; | |
81 | bdaddr_t bdaddr; | |
82 | baswap(&bdaddr, &data->bdaddr); | |
83 | n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %u\n", | |
84 | batostr(&bdaddr), | |
85 | data->pscan_rep_mode, data->pscan_period_mode, data->pscan_mode, | |
86 | data->dev_class[2], data->dev_class[1], data->dev_class[0], | |
87 | __le16_to_cpu(data->clock_offset), data->rssi, e->timestamp); | |
88 | } | |
89 | ||
90 | hci_dev_unlock_bh(hdev); | |
91 | return n; | |
92 | } | |
93 | ||
a91f2e39 | 94 | static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf) |
04837f64 | 95 | { |
a91f2e39 | 96 | struct hci_dev *hdev = dev_get_drvdata(dev); |
04837f64 MH |
97 | return sprintf(buf, "%d\n", hdev->idle_timeout); |
98 | } | |
99 | ||
a91f2e39 | 100 | static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
04837f64 | 101 | { |
a91f2e39 | 102 | struct hci_dev *hdev = dev_get_drvdata(dev); |
04837f64 MH |
103 | char *ptr; |
104 | __u32 val; | |
105 | ||
106 | val = simple_strtoul(buf, &ptr, 10); | |
107 | if (ptr == buf) | |
108 | return -EINVAL; | |
109 | ||
110 | if (val != 0 && (val < 500 || val > 3600000)) | |
111 | return -EINVAL; | |
112 | ||
113 | hdev->idle_timeout = val; | |
114 | ||
115 | return count; | |
116 | } | |
117 | ||
a91f2e39 | 118 | static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribute *attr, char *buf) |
04837f64 | 119 | { |
a91f2e39 | 120 | struct hci_dev *hdev = dev_get_drvdata(dev); |
04837f64 MH |
121 | return sprintf(buf, "%d\n", hdev->sniff_max_interval); |
122 | } | |
123 | ||
a91f2e39 | 124 | static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
04837f64 | 125 | { |
a91f2e39 | 126 | struct hci_dev *hdev = dev_get_drvdata(dev); |
04837f64 MH |
127 | char *ptr; |
128 | __u16 val; | |
129 | ||
130 | val = simple_strtoul(buf, &ptr, 10); | |
131 | if (ptr == buf) | |
132 | return -EINVAL; | |
133 | ||
134 | if (val < 0x0002 || val > 0xFFFE || val % 2) | |
135 | return -EINVAL; | |
136 | ||
137 | if (val < hdev->sniff_min_interval) | |
138 | return -EINVAL; | |
139 | ||
140 | hdev->sniff_max_interval = val; | |
141 | ||
142 | return count; | |
143 | } | |
144 | ||
a91f2e39 | 145 | static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribute *attr, char *buf) |
04837f64 | 146 | { |
a91f2e39 | 147 | struct hci_dev *hdev = dev_get_drvdata(dev); |
04837f64 MH |
148 | return sprintf(buf, "%d\n", hdev->sniff_min_interval); |
149 | } | |
150 | ||
a91f2e39 | 151 | static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
04837f64 | 152 | { |
a91f2e39 | 153 | struct hci_dev *hdev = dev_get_drvdata(dev); |
04837f64 MH |
154 | char *ptr; |
155 | __u16 val; | |
156 | ||
157 | val = simple_strtoul(buf, &ptr, 10); | |
158 | if (ptr == buf) | |
159 | return -EINVAL; | |
160 | ||
161 | if (val < 0x0002 || val > 0xFFFE || val % 2) | |
162 | return -EINVAL; | |
163 | ||
164 | if (val > hdev->sniff_max_interval) | |
165 | return -EINVAL; | |
166 | ||
167 | hdev->sniff_min_interval = val; | |
168 | ||
169 | return count; | |
170 | } | |
171 | ||
a91f2e39 MH |
172 | static DEVICE_ATTR(type, S_IRUGO, show_type, NULL); |
173 | static DEVICE_ATTR(address, S_IRUGO, show_address, NULL); | |
1143e5a6 MH |
174 | static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL); |
175 | static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL); | |
176 | static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL); | |
a91f2e39 | 177 | static DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL); |
1da177e4 | 178 | |
a91f2e39 | 179 | static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR, |
04837f64 | 180 | show_idle_timeout, store_idle_timeout); |
a91f2e39 | 181 | static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR, |
04837f64 | 182 | show_sniff_max_interval, store_sniff_max_interval); |
a91f2e39 | 183 | static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR, |
04837f64 MH |
184 | show_sniff_min_interval, store_sniff_min_interval); |
185 | ||
a91f2e39 | 186 | static struct device_attribute *bt_attrs[] = { |
a91f2e39 MH |
187 | &dev_attr_type, |
188 | &dev_attr_address, | |
1143e5a6 MH |
189 | &dev_attr_manufacturer, |
190 | &dev_attr_hci_version, | |
191 | &dev_attr_hci_revision, | |
a91f2e39 MH |
192 | &dev_attr_inquiry_cache, |
193 | &dev_attr_idle_timeout, | |
194 | &dev_attr_sniff_max_interval, | |
195 | &dev_attr_sniff_min_interval, | |
1da177e4 LT |
196 | NULL |
197 | }; | |
198 | ||
b219e3ac MH |
199 | static ssize_t show_conn_type(struct device *dev, struct device_attribute *attr, char *buf) |
200 | { | |
201 | struct hci_conn *conn = dev_get_drvdata(dev); | |
202 | return sprintf(buf, "%s\n", conn->type == ACL_LINK ? "ACL" : "SCO"); | |
203 | } | |
204 | ||
205 | static ssize_t show_conn_address(struct device *dev, struct device_attribute *attr, char *buf) | |
206 | { | |
207 | struct hci_conn *conn = dev_get_drvdata(dev); | |
208 | bdaddr_t bdaddr; | |
209 | baswap(&bdaddr, &conn->dst); | |
210 | return sprintf(buf, "%s\n", batostr(&bdaddr)); | |
211 | } | |
212 | ||
213 | #define CONN_ATTR(_name,_mode,_show,_store) \ | |
214 | struct device_attribute conn_attr_##_name = __ATTR(_name,_mode,_show,_store) | |
215 | ||
216 | static CONN_ATTR(type, S_IRUGO, show_conn_type, NULL); | |
217 | static CONN_ATTR(address, S_IRUGO, show_conn_address, NULL); | |
218 | ||
219 | static struct device_attribute *conn_attrs[] = { | |
220 | &conn_attr_type, | |
221 | &conn_attr_address, | |
222 | NULL | |
223 | }; | |
224 | ||
a91f2e39 | 225 | struct class *bt_class = NULL; |
be9d1227 MH |
226 | EXPORT_SYMBOL_GPL(bt_class); |
227 | ||
27d35284 MH |
228 | static struct bus_type bt_bus = { |
229 | .name = "bluetooth", | |
230 | }; | |
231 | ||
232 | static struct platform_device *bt_platform; | |
233 | ||
a91f2e39 MH |
234 | static void bt_release(struct device *dev) |
235 | { | |
b219e3ac MH |
236 | void *data = dev_get_drvdata(dev); |
237 | kfree(data); | |
238 | } | |
239 | ||
c4028958 | 240 | static void add_conn(struct work_struct *work) |
b219e3ac | 241 | { |
c4028958 | 242 | struct hci_conn *conn = container_of(work, struct hci_conn, work); |
b219e3ac MH |
243 | int i; |
244 | ||
df5c37ea MH |
245 | if (device_register(&conn->dev) < 0) { |
246 | BT_ERR("Failed to register connection device"); | |
247 | return; | |
248 | } | |
b219e3ac MH |
249 | |
250 | for (i = 0; conn_attrs[i]; i++) | |
df5c37ea MH |
251 | if (device_create_file(&conn->dev, conn_attrs[i]) < 0) |
252 | BT_ERR("Failed to create connection attribute"); | |
b219e3ac MH |
253 | } |
254 | ||
255 | void hci_conn_add_sysfs(struct hci_conn *conn) | |
256 | { | |
257 | struct hci_dev *hdev = conn->hdev; | |
258 | bdaddr_t *ba = &conn->dst; | |
259 | ||
260 | BT_DBG("conn %p", conn); | |
261 | ||
e52726de MH |
262 | conn->dev.bus = &bt_bus; |
263 | conn->dev.parent = &hdev->dev; | |
264 | ||
b219e3ac MH |
265 | conn->dev.release = bt_release; |
266 | ||
267 | snprintf(conn->dev.bus_id, BUS_ID_SIZE, | |
268 | "%s%2.2X%2.2X%2.2X%2.2X%2.2X%2.2X", | |
269 | conn->type == ACL_LINK ? "acl" : "sco", | |
270 | ba->b[5], ba->b[4], ba->b[3], | |
271 | ba->b[2], ba->b[1], ba->b[0]); | |
272 | ||
273 | dev_set_drvdata(&conn->dev, conn); | |
274 | ||
c4028958 | 275 | INIT_WORK(&conn->work, add_conn); |
b219e3ac MH |
276 | |
277 | schedule_work(&conn->work); | |
278 | } | |
279 | ||
c4028958 | 280 | static void del_conn(struct work_struct *work) |
b219e3ac | 281 | { |
c4028958 | 282 | struct hci_conn *conn = container_of(work, struct hci_conn, work); |
b219e3ac MH |
283 | device_del(&conn->dev); |
284 | } | |
285 | ||
286 | void hci_conn_del_sysfs(struct hci_conn *conn) | |
287 | { | |
288 | BT_DBG("conn %p", conn); | |
289 | ||
c4028958 | 290 | INIT_WORK(&conn->work, del_conn); |
b219e3ac MH |
291 | |
292 | schedule_work(&conn->work); | |
a91f2e39 MH |
293 | } |
294 | ||
1da177e4 LT |
295 | int hci_register_sysfs(struct hci_dev *hdev) |
296 | { | |
a91f2e39 | 297 | struct device *dev = &hdev->dev; |
1da177e4 LT |
298 | unsigned int i; |
299 | int err; | |
300 | ||
301 | BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type); | |
302 | ||
a91f2e39 | 303 | dev->class = bt_class; |
e9c4bec6 | 304 | dev->parent = hdev->parent; |
a91f2e39 MH |
305 | |
306 | strlcpy(dev->bus_id, hdev->name, BUS_ID_SIZE); | |
1da177e4 | 307 | |
a91f2e39 | 308 | dev->release = bt_release; |
27d35284 | 309 | |
a91f2e39 | 310 | dev_set_drvdata(dev, hdev); |
27d35284 | 311 | |
a91f2e39 | 312 | err = device_register(dev); |
1da177e4 LT |
313 | if (err < 0) |
314 | return err; | |
315 | ||
316 | for (i = 0; bt_attrs[i]; i++) | |
df5c37ea MH |
317 | if (device_create_file(dev, bt_attrs[i]) < 0) |
318 | BT_ERR("Failed to create device attribute"); | |
1da177e4 LT |
319 | |
320 | return 0; | |
321 | } | |
322 | ||
323 | void hci_unregister_sysfs(struct hci_dev *hdev) | |
324 | { | |
1da177e4 LT |
325 | BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type); |
326 | ||
4d0eb004 | 327 | device_del(&hdev->dev); |
1da177e4 LT |
328 | } |
329 | ||
330 | int __init bt_sysfs_init(void) | |
331 | { | |
27d35284 MH |
332 | int err; |
333 | ||
334 | bt_platform = platform_device_register_simple("bluetooth", -1, NULL, 0); | |
335 | if (IS_ERR(bt_platform)) | |
336 | return PTR_ERR(bt_platform); | |
337 | ||
338 | err = bus_register(&bt_bus); | |
339 | if (err < 0) { | |
340 | platform_device_unregister(bt_platform); | |
341 | return err; | |
342 | } | |
343 | ||
a91f2e39 MH |
344 | bt_class = class_create(THIS_MODULE, "bluetooth"); |
345 | if (IS_ERR(bt_class)) { | |
27d35284 MH |
346 | bus_unregister(&bt_bus); |
347 | platform_device_unregister(bt_platform); | |
a91f2e39 | 348 | return PTR_ERR(bt_class); |
27d35284 MH |
349 | } |
350 | ||
351 | return 0; | |
1da177e4 LT |
352 | } |
353 | ||
860e13b5 | 354 | void bt_sysfs_cleanup(void) |
1da177e4 | 355 | { |
a91f2e39 | 356 | class_destroy(bt_class); |
27d35284 MH |
357 | |
358 | bus_unregister(&bt_bus); | |
359 | ||
360 | platform_device_unregister(bt_platform); | |
1da177e4 | 361 | } |