int bt_l2cap_chan_send(struct bt_l2cap_chan *chan, struct net_buf *buf)
{
int err;
if (!buf) {
return -EINVAL;
}
BT_DBG("chan %p buf %p len %u", chan, buf, buf->len);
if (!chan->conn || chan->conn->state != BT_CONN_CONNECTED) {
return -ENOTCONN;
}
if (IS_ENABLED(CONFIG_BLUETOOTH_BREDR) &&
chan->conn->type == BT_CONN_TYPE_BR) {
return bt_l2cap_br_chan_send(chan, buf);
}
err = l2cap_chan_le_send_sdu(BT_L2CAP_LE_CHAN(chan), buf, 0);
if (err < 0) {
if (err == -EAGAIN) {
/* Queue buffer to be sent later */
net_buf_put(&(BT_L2CAP_LE_CHAN(chan))->tx_queue, buf);
return *((int *)net_buf_user_data(buf));
}
BT_ERR("failed to send message %d", err);
}
return err;
}
int bt_l2cap_chan_send(struct bt_l2cap_chan *chan, struct net_buf *buf)
{
int err;
if (!buf) {
return -EINVAL;
}
BT_DBG("chan %p buf %p len %u", chan, buf, buf->len);
if (!chan->conn || chan->conn->state != BT_CONN_CONNECTED) {
return -ENOTCONN;
}
#if defined(CONFIG_BLUETOOTH_BREDR)
if (chan->conn->type == BT_CONN_TYPE_BR) {
return bt_l2cap_br_chan_send(chan, buf);
}
#endif /* CONFIG_BLUETOOTH_BREDR */
err = l2cap_chan_le_send_sdu(LE_CHAN(chan), buf);
if (err < 0) {
BT_ERR("failed to send message %d", err);
}
return err;
}
static void l2cap_chan_le_send_resume(struct bt_l2cap_le_chan *ch)
{
struct net_buf *buf;
/* Resume tx in case there are buffers in the queue */
while ((buf = l2cap_chan_le_get_tx_buf(ch))) {
int sent = *((int *)net_buf_user_data(buf));
BT_DBG("buf %p sent %u", buf, sent);
sent = l2cap_chan_le_send_sdu(ch, buf, sent);
if (sent < 0) {
if (sent == -EAGAIN) {
ch->tx_buf = buf;
}
break;
}
}
}
