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Bluetooth: Implement debugfs support for listing UUIDs

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This patch adds a debugfs entry to list the UUIDs that have been
registered through the management interface.

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Johan Hedberg 2011-01-04 11:39:44 +02:00 committed by Gustavo F. Padovan
parent 2aeb9a1ae0
commit 930e13363f
1 changed files with 52 additions and 0 deletions
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52
net/bluetooth/hci_sysfs.c
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@ -461,6 +461,56 @@ static const struct file_operations blacklist_fops = {
.llseek = seq_lseek, .llseek = seq_lseek,
.release = single_release, .release = single_release,
}; };
static void print_bt_uuid(struct seq_file *f, u8 *uuid)
{
u32 data0, data4;
u16 data1, data2, data3, data5;
memcpy(&data0, &uuid[0], 4);
memcpy(&data1, &uuid[4], 2);
memcpy(&data2, &uuid[6], 2);
memcpy(&data3, &uuid[8], 2);
memcpy(&data4, &uuid[10], 4);
memcpy(&data5, &uuid[14], 2);
seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x\n",
ntohl(data0), ntohs(data1), ntohs(data2),
ntohs(data3), ntohl(data4), ntohs(data5));
}
static int uuids_show(struct seq_file *f, void *p)
{
struct hci_dev *hdev = f->private;
struct list_head *l;
hci_dev_lock_bh(hdev);
list_for_each(l, &hdev->uuids) {
struct bt_uuid *uuid;
uuid = list_entry(l, struct bt_uuid, list);
print_bt_uuid(f, uuid->uuid);
}
hci_dev_unlock_bh(hdev);
return 0;
}
static int uuids_open(struct inode *inode, struct file *file)
{
return single_open(file, uuids_show, inode->i_private);
}
static const struct file_operations uuids_fops = {
.open = uuids_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
int hci_register_sysfs(struct hci_dev *hdev) int hci_register_sysfs(struct hci_dev *hdev)
{ {
struct device *dev = &hdev->dev; struct device *dev = &hdev->dev;
@ -493,6 +543,8 @@ int hci_register_sysfs(struct hci_dev *hdev)
debugfs_create_file("blacklist", 0444, hdev->debugfs, debugfs_create_file("blacklist", 0444, hdev->debugfs,
hdev, &blacklist_fops); hdev, &blacklist_fops);
debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
return 0; return 0;
} }