312c004d36
Leave the overloaded "hotplug" word to susbsystems which are handling real devices. The driver core does not "plug" anything, it just exports the state to userspace and generates events. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
156 lines
3.6 KiB
C
156 lines
3.6 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_uevent(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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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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.uevent = bt_uevent,
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#endif
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};
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EXPORT_SYMBOL_GPL(bt_class);
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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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