1 /* Bluetooth HCI driver model support. */
3 #include <linux/kernel.h>
4 #include <linux/init.h>
6 #include <linux/platform_device.h>
8 #include <net/bluetooth/bluetooth.h>
9 #include <net/bluetooth/hci_core.h>
11 #ifndef CONFIG_BT_HCI_CORE_DEBUG
16 static inline char *typetostr(int type)
36 static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf)
38 struct hci_dev *hdev = dev_get_drvdata(dev);
39 return sprintf(buf, "%s\n", typetostr(hdev->type));
42 static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf)
44 struct hci_dev *hdev = dev_get_drvdata(dev);
46 baswap(&bdaddr, &hdev->bdaddr);
47 return sprintf(buf, "%s\n", batostr(&bdaddr));
50 static ssize_t show_inquiry_cache(struct device *dev, struct device_attribute *attr, char *buf)
52 struct hci_dev *hdev = dev_get_drvdata(dev);
53 struct inquiry_cache *cache = &hdev->inq_cache;
54 struct inquiry_entry *e;
57 hci_dev_lock_bh(hdev);
59 for (e = cache->list; e; e = e->next) {
60 struct inquiry_data *data = &e->data;
62 baswap(&bdaddr, &data->bdaddr);
63 n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %u\n",
65 data->pscan_rep_mode, data->pscan_period_mode, data->pscan_mode,
66 data->dev_class[2], data->dev_class[1], data->dev_class[0],
67 __le16_to_cpu(data->clock_offset), data->rssi, e->timestamp);
70 hci_dev_unlock_bh(hdev);
74 static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf)
76 struct hci_dev *hdev = dev_get_drvdata(dev);
77 return sprintf(buf, "%d\n", hdev->idle_timeout);
80 static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
82 struct hci_dev *hdev = dev_get_drvdata(dev);
86 val = simple_strtoul(buf, &ptr, 10);
90 if (val != 0 && (val < 500 || val > 3600000))
93 hdev->idle_timeout = val;
98 static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribute *attr, char *buf)
100 struct hci_dev *hdev = dev_get_drvdata(dev);
101 return sprintf(buf, "%d\n", hdev->sniff_max_interval);
104 static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
106 struct hci_dev *hdev = dev_get_drvdata(dev);
110 val = simple_strtoul(buf, &ptr, 10);
114 if (val < 0x0002 || val > 0xFFFE || val % 2)
117 if (val < hdev->sniff_min_interval)
120 hdev->sniff_max_interval = val;
125 static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribute *attr, char *buf)
127 struct hci_dev *hdev = dev_get_drvdata(dev);
128 return sprintf(buf, "%d\n", hdev->sniff_min_interval);
131 static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
133 struct hci_dev *hdev = dev_get_drvdata(dev);
137 val = simple_strtoul(buf, &ptr, 10);
141 if (val < 0x0002 || val > 0xFFFE || val % 2)
144 if (val > hdev->sniff_max_interval)
147 hdev->sniff_min_interval = val;
152 static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
153 static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
154 static DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
156 static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
157 show_idle_timeout, store_idle_timeout);
158 static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
159 show_sniff_max_interval, store_sniff_max_interval);
160 static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
161 show_sniff_min_interval, store_sniff_min_interval);
163 static struct device_attribute *bt_attrs[] = {
166 &dev_attr_inquiry_cache,
167 &dev_attr_idle_timeout,
168 &dev_attr_sniff_max_interval,
169 &dev_attr_sniff_min_interval,
173 static ssize_t show_conn_type(struct device *dev, struct device_attribute *attr, char *buf)
175 struct hci_conn *conn = dev_get_drvdata(dev);
176 return sprintf(buf, "%s\n", conn->type == ACL_LINK ? "ACL" : "SCO");
179 static ssize_t show_conn_address(struct device *dev, struct device_attribute *attr, char *buf)
181 struct hci_conn *conn = dev_get_drvdata(dev);
183 baswap(&bdaddr, &conn->dst);
184 return sprintf(buf, "%s\n", batostr(&bdaddr));
187 #define CONN_ATTR(_name,_mode,_show,_store) \
188 struct device_attribute conn_attr_##_name = __ATTR(_name,_mode,_show,_store)
190 static CONN_ATTR(type, S_IRUGO, show_conn_type, NULL);
191 static CONN_ATTR(address, S_IRUGO, show_conn_address, NULL);
193 static struct device_attribute *conn_attrs[] = {
199 struct class *bt_class = NULL;
200 EXPORT_SYMBOL_GPL(bt_class);
202 static struct bus_type bt_bus = {
206 static struct platform_device *bt_platform;
208 static void bt_release(struct device *dev)
210 void *data = dev_get_drvdata(dev);
214 static void add_conn(void *data)
216 struct hci_conn *conn = data;
219 device_register(&conn->dev);
221 for (i = 0; conn_attrs[i]; i++)
222 device_create_file(&conn->dev, conn_attrs[i]);
225 void hci_conn_add_sysfs(struct hci_conn *conn)
227 struct hci_dev *hdev = conn->hdev;
228 bdaddr_t *ba = &conn->dst;
230 BT_DBG("conn %p", conn);
232 conn->dev.parent = &hdev->dev;
233 conn->dev.release = bt_release;
235 snprintf(conn->dev.bus_id, BUS_ID_SIZE,
236 "%s%2.2X%2.2X%2.2X%2.2X%2.2X%2.2X",
237 conn->type == ACL_LINK ? "acl" : "sco",
238 ba->b[5], ba->b[4], ba->b[3],
239 ba->b[2], ba->b[1], ba->b[0]);
241 dev_set_drvdata(&conn->dev, conn);
243 INIT_WORK(&conn->work, add_conn, (void *) conn);
245 schedule_work(&conn->work);
248 static void del_conn(void *data)
250 struct hci_conn *conn = data;
251 device_del(&conn->dev);
254 void hci_conn_del_sysfs(struct hci_conn *conn)
256 BT_DBG("conn %p", conn);
258 INIT_WORK(&conn->work, del_conn, (void *) conn);
260 schedule_work(&conn->work);
263 int hci_register_sysfs(struct hci_dev *hdev)
265 struct device *dev = &hdev->dev;
269 BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
271 dev->class = bt_class;
274 dev->parent = hdev->parent;
276 dev->parent = &bt_platform->dev;
278 strlcpy(dev->bus_id, hdev->name, BUS_ID_SIZE);
280 dev->release = bt_release;
282 dev_set_drvdata(dev, hdev);
284 err = device_register(dev);
288 for (i = 0; bt_attrs[i]; i++)
289 device_create_file(dev, bt_attrs[i]);
294 void hci_unregister_sysfs(struct hci_dev *hdev)
296 BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
298 device_del(&hdev->dev);
301 int __init bt_sysfs_init(void)
305 bt_platform = platform_device_register_simple("bluetooth", -1, NULL, 0);
306 if (IS_ERR(bt_platform))
307 return PTR_ERR(bt_platform);
309 err = bus_register(&bt_bus);
311 platform_device_unregister(bt_platform);
315 bt_class = class_create(THIS_MODULE, "bluetooth");
316 if (IS_ERR(bt_class)) {
317 bus_unregister(&bt_bus);
318 platform_device_unregister(bt_platform);
319 return PTR_ERR(bt_class);
325 void __exit bt_sysfs_cleanup(void)
327 class_destroy(bt_class);
329 bus_unregister(&bt_bus);
331 platform_device_unregister(bt_platform);