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authorMarcel Holtmann <marcel@holtmann.org>2006-07-06 12:38:46 +0200
committerDavid S. Miller <davem@sunset.davemloft.net>2006-09-28 18:01:25 -0700
commitb219e3ac66183fc9771b94af931fb5fd41d586ec (patch)
tree671a6a553c6744fce2eb35c6508249cbc616c326 /net/bluetooth
parent4d0eb0049ce94101f7f169f89216ba58475219e2 (diff)
[Bluetooth] Integrate low-level connections into the driver model
This patch integrates the low-level connections (ACL and SCO) into the driver model. Every connection is presented as device with the parent set to its host controller device. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_conn.c8
-rw-r--r--net/bluetooth/hci_sysfs.c79
2 files changed, 84 insertions, 3 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 420ed4d7e57e..7e9515b41cc0 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -179,6 +179,8 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
if (hdev->notify)
hdev->notify(hdev, HCI_NOTIFY_CONN_ADD);
+ hci_conn_add_sysfs(conn);
+
tasklet_enable(&hdev->tx_task);
return conn;
@@ -211,6 +213,8 @@ int hci_conn_del(struct hci_conn *conn)
tasklet_disable(&hdev->tx_task);
+ hci_conn_del_sysfs(conn);
+
hci_conn_hash_del(hdev, conn);
if (hdev->notify)
hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
@@ -221,7 +225,9 @@ int hci_conn_del(struct hci_conn *conn)
hci_dev_put(hdev);
- kfree(conn);
+ /* will free via device release */
+ put_device(&conn->dev);
+
return 0;
}
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 3ccb4b0b8fc2..58df4360d242 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -170,6 +170,32 @@ static struct device_attribute *bt_attrs[] = {
NULL
};
+static ssize_t show_conn_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_conn *conn = dev_get_drvdata(dev);
+ return sprintf(buf, "%s\n", conn->type == ACL_LINK ? "ACL" : "SCO");
+}
+
+static ssize_t show_conn_address(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct hci_conn *conn = dev_get_drvdata(dev);
+ bdaddr_t bdaddr;
+ baswap(&bdaddr, &conn->dst);
+ return sprintf(buf, "%s\n", batostr(&bdaddr));
+}
+
+#define CONN_ATTR(_name,_mode,_show,_store) \
+struct device_attribute conn_attr_##_name = __ATTR(_name,_mode,_show,_store)
+
+static CONN_ATTR(type, S_IRUGO, show_conn_type, NULL);
+static CONN_ATTR(address, S_IRUGO, show_conn_address, NULL);
+
+static struct device_attribute *conn_attrs[] = {
+ &conn_attr_type,
+ &conn_attr_address,
+ NULL
+};
+
struct class *bt_class = NULL;
EXPORT_SYMBOL_GPL(bt_class);
@@ -181,8 +207,57 @@ static struct platform_device *bt_platform;
static void bt_release(struct device *dev)
{
- struct hci_dev *hdev = dev_get_drvdata(dev);
- kfree(hdev);
+ void *data = dev_get_drvdata(dev);
+ kfree(data);
+}
+
+static void add_conn(void *data)
+{
+ struct hci_conn *conn = data;
+ int i;
+
+ device_register(&conn->dev);
+
+ for (i = 0; conn_attrs[i]; i++)
+ device_create_file(&conn->dev, conn_attrs[i]);
+}
+
+void hci_conn_add_sysfs(struct hci_conn *conn)
+{
+ struct hci_dev *hdev = conn->hdev;
+ bdaddr_t *ba = &conn->dst;
+
+ BT_DBG("conn %p", conn);
+
+ conn->dev.parent = &hdev->dev;
+ conn->dev.release = bt_release;
+
+ snprintf(conn->dev.bus_id, BUS_ID_SIZE,
+ "%s%2.2X%2.2X%2.2X%2.2X%2.2X%2.2X",
+ conn->type == ACL_LINK ? "acl" : "sco",
+ ba->b[5], ba->b[4], ba->b[3],
+ ba->b[2], ba->b[1], ba->b[0]);
+
+ dev_set_drvdata(&conn->dev, conn);
+
+ INIT_WORK(&conn->work, add_conn, (void *) conn);
+
+ schedule_work(&conn->work);
+}
+
+static void del_conn(void *data)
+{
+ struct hci_conn *conn = data;
+ device_del(&conn->dev);
+}
+
+void hci_conn_del_sysfs(struct hci_conn *conn)
+{
+ BT_DBG("conn %p", conn);
+
+ INIT_WORK(&conn->work, del_conn, (void *) conn);
+
+ schedule_work(&conn->work);
}
int hci_register_sysfs(struct hci_dev *hdev)