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 struct class *bt_class = NULL;
174 EXPORT_SYMBOL_GPL(bt_class);
176 static struct bus_type bt_bus = {
180 static struct platform_device *bt_platform;
182 static void bt_release(struct device *dev)
184 struct hci_dev *hdev = dev_get_drvdata(dev);
188 int hci_register_sysfs(struct hci_dev *hdev)
190 struct device *dev = &hdev->dev;
194 BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
196 dev->class = bt_class;
199 dev->parent = hdev->parent;
201 dev->parent = &bt_platform->dev;
203 strlcpy(dev->bus_id, hdev->name, BUS_ID_SIZE);
205 dev->release = bt_release;
207 dev_set_drvdata(dev, hdev);
209 err = device_register(dev);
213 for (i = 0; bt_attrs[i]; i++)
214 device_create_file(dev, bt_attrs[i]);
219 void hci_unregister_sysfs(struct hci_dev *hdev)
221 BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
223 device_del(&hdev->dev);
226 int __init bt_sysfs_init(void)
230 bt_platform = platform_device_register_simple("bluetooth", -1, NULL, 0);
231 if (IS_ERR(bt_platform))
232 return PTR_ERR(bt_platform);
234 err = bus_register(&bt_bus);
236 platform_device_unregister(bt_platform);
240 bt_class = class_create(THIS_MODULE, "bluetooth");
241 if (IS_ERR(bt_class)) {
242 bus_unregister(&bt_bus);
243 platform_device_unregister(bt_platform);
244 return PTR_ERR(bt_class);
250 void __exit bt_sysfs_cleanup(void)
252 class_destroy(bt_class);
254 bus_unregister(&bt_bus);
256 platform_device_unregister(bt_platform);