154 lines
3.5 KiB
C
154 lines
3.5 KiB
C
/* Bluetooth HCI driver model support. */
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#include <linux/config.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#ifndef CONFIG_BT_HCI_CORE_DEBUG
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#undef BT_DBG
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#define BT_DBG(D...)
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#endif
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static ssize_t show_name(struct class_device *cdev, char *buf)
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{
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struct hci_dev *hdev = class_get_devdata(cdev);
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return sprintf(buf, "%s\n", hdev->name);
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}
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static ssize_t show_type(struct class_device *cdev, char *buf)
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{
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struct hci_dev *hdev = class_get_devdata(cdev);
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return sprintf(buf, "%d\n", hdev->type);
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}
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static ssize_t show_address(struct class_device *cdev, char *buf)
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{
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struct hci_dev *hdev = class_get_devdata(cdev);
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bdaddr_t bdaddr;
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baswap(&bdaddr, &hdev->bdaddr);
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return sprintf(buf, "%s\n", batostr(&bdaddr));
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}
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static ssize_t show_flags(struct class_device *cdev, char *buf)
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{
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struct hci_dev *hdev = class_get_devdata(cdev);
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return sprintf(buf, "0x%lx\n", hdev->flags);
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}
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static ssize_t show_inquiry_cache(struct class_device *cdev, char *buf)
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{
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struct hci_dev *hdev = class_get_devdata(cdev);
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struct inquiry_cache *cache = &hdev->inq_cache;
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struct inquiry_entry *e;
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int n = 0;
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hci_dev_lock_bh(hdev);
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for (e = cache->list; e; e = e->next) {
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struct inquiry_data *data = &e->data;
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bdaddr_t bdaddr;
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baswap(&bdaddr, &data->bdaddr);
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n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %u\n",
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batostr(&bdaddr),
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data->pscan_rep_mode, data->pscan_period_mode, data->pscan_mode,
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data->dev_class[2], data->dev_class[1], data->dev_class[0],
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__le16_to_cpu(data->clock_offset), data->rssi, e->timestamp);
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}
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hci_dev_unlock_bh(hdev);
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return n;
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}
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static CLASS_DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
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static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
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static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
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static CLASS_DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
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static CLASS_DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
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static struct class_device_attribute *bt_attrs[] = {
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&class_device_attr_name,
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&class_device_attr_type,
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&class_device_attr_address,
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&class_device_attr_flags,
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&class_device_attr_inquiry_cache,
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NULL
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};
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#ifdef CONFIG_HOTPLUG
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static int bt_hotplug(struct class_device *cdev, char **envp, int num_envp, char *buf, int size)
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{
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struct hci_dev *hdev = class_get_devdata(cdev);
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int n, i = 0;
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envp[i++] = buf;
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n = snprintf(buf, size, "INTERFACE=%s", hdev->name) + 1;
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buf += n;
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size -= n;
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if ((size <= 0) || (i >= num_envp))
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return -ENOMEM;
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envp[i] = NULL;
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return 0;
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}
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#endif
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static void bt_release(struct class_device *cdev)
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{
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struct hci_dev *hdev = class_get_devdata(cdev);
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kfree(hdev);
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}
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static struct class bt_class = {
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.name = "bluetooth",
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.release = bt_release,
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#ifdef CONFIG_HOTPLUG
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.hotplug = bt_hotplug,
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#endif
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};
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int hci_register_sysfs(struct hci_dev *hdev)
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{
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struct class_device *cdev = &hdev->class_dev;
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unsigned int i;
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int err;
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BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
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cdev->class = &bt_class;
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class_set_devdata(cdev, hdev);
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strlcpy(cdev->class_id, hdev->name, BUS_ID_SIZE);
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err = class_device_register(cdev);
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if (err < 0)
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return err;
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for (i = 0; bt_attrs[i]; i++)
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class_device_create_file(cdev, bt_attrs[i]);
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return 0;
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}
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void hci_unregister_sysfs(struct hci_dev *hdev)
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{
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struct class_device * cdev = &hdev->class_dev;
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BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
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class_device_del(cdev);
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}
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int __init bt_sysfs_init(void)
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{
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return class_register(&bt_class);
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}
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void __exit bt_sysfs_cleanup(void)
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{
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class_unregister(&bt_class);
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}
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