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[Bluetooth] Add basics to better support and handle eSCO links

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To better support and handle eSCO links in the future a bunch of
constants needs to be added and some basic routines need to be
updated. This is the initial step.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Marcel Holtmann
2007-07-11 09:51:55 +02:00
parent 8de0a15483
commit 5b7f990927
5 changed files with 69 additions and 40 deletions
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net/bluetooth/hci_conn.c
+28 -29
View File
@@ -123,8 +123,8 @@ void hci_add_sco(struct hci_conn *conn, __u16 handle)
conn->state = BT_CONNECT;
conn->out = 1;
cp.pkt_type = cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
cp.handle = cpu_to_le16(handle);
cp.pkt_type = cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
hci_send_cmd(hdev, OGF_LINK_CTL, OCF_ADD_SCO, sizeof(cp), &cp);
}
@@ -220,19 +220,19 @@ int hci_conn_del(struct hci_conn *conn)
del_timer(&conn->disc_timer);
if (conn->type == SCO_LINK) {
struct hci_conn *acl = conn->link;
if (acl) {
acl->link = NULL;
hci_conn_put(acl);
}
} else {
if (conn->type == ACL_LINK) {
struct hci_conn *sco = conn->link;
if (sco)
sco->link = NULL;
/* Unacked frames */
hdev->acl_cnt += conn->sent;
} else {
struct hci_conn *acl = conn->link;
if (acl) {
acl->link = NULL;
hci_conn_put(acl);
}
}
tasklet_disable(&hdev->tx_task);
@@ -297,9 +297,10 @@ EXPORT_SYMBOL(hci_get_route);
/* Create SCO or ACL connection.
* Device _must_ be locked */
struct hci_conn * hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
{
struct hci_conn *acl;
struct hci_conn *sco;
BT_DBG("%s dst %s", hdev->name, batostr(dst));
@@ -313,28 +314,26 @@ struct hci_conn * hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
if (acl->state == BT_OPEN || acl->state == BT_CLOSED)
hci_acl_connect(acl);
if (type == SCO_LINK) {
struct hci_conn *sco;
if (!(sco = hci_conn_hash_lookup_ba(hdev, SCO_LINK, dst))) {
if (!(sco = hci_conn_add(hdev, SCO_LINK, dst))) {
hci_conn_put(acl);
return NULL;
}
}
acl->link = sco;
sco->link = acl;
hci_conn_hold(sco);
if (acl->state == BT_CONNECTED &&
(sco->state == BT_OPEN || sco->state == BT_CLOSED))
hci_add_sco(sco, acl->handle);
return sco;
} else {
if (type == ACL_LINK)
return acl;
if (!(sco = hci_conn_hash_lookup_ba(hdev, type, dst))) {
if (!(sco = hci_conn_add(hdev, type, dst))) {
hci_conn_put(acl);
return NULL;
}
}
acl->link = sco;
sco->link = acl;
hci_conn_hold(sco);
if (acl->state == BT_CONNECTED &&
(sco->state == BT_OPEN || sco->state == BT_CLOSED))
hci_add_sco(sco, acl->handle);
return sco;
}
EXPORT_SYMBOL(hci_connect);