C++ (Cpp) bt_l2cap_le_lookup_rx_cid示例

示例#1

文件： l2cap.c 项目： cyysu/AliOS-Things

void bt_l2cap_recv(struct bt_conn *conn, struct net_buf *buf)
{
	struct bt_l2cap_hdr *hdr = (void *)buf->data;
	struct bt_l2cap_chan *chan;
	uint16_t cid;

	if (IS_ENABLED(CONFIG_BLUETOOTH_BREDR) &&
	    conn->type == BT_CONN_TYPE_BR) {
		bt_l2cap_br_recv(conn, buf);
		return;
	}

	if (buf->len < sizeof(*hdr)) {
		BT_ERR("Too small L2CAP PDU received");
		net_buf_unref(buf);
		return;
	}

	cid = sys_le16_to_cpu(hdr->cid);
	net_buf_pull(buf, sizeof(*hdr));

	BT_DBG("Packet for CID %u len %u", cid, buf->len);

	chan = bt_l2cap_le_lookup_rx_cid(conn, cid);
	if (!chan) {
		BT_WARN("Ignoring data for unknown CID 0x%04x", cid);
		net_buf_unref(buf);
		return;
	}

	l2cap_chan_recv(chan, buf);
	net_buf_unref(buf);
}

示例#2

文件： l2cap.c 项目： hudkmr/zephyr

void bt_l2cap_recv(struct bt_conn *conn, struct net_buf *buf)
{
	struct bt_l2cap_hdr *hdr = (void *)buf->data;
	struct bt_l2cap_chan *chan;
	uint16_t cid;

	if (buf->len < sizeof(*hdr)) {
		BT_ERR("Too small L2CAP PDU received");
		net_buf_unref(buf);
		return;
	}

	cid = sys_le16_to_cpu(hdr->cid);
	net_buf_pull(buf, sizeof(*hdr));

	BT_DBG("Packet for CID %u len %u", cid, buf->len);

	switch (conn->type) {
	case BT_CONN_TYPE_LE:
		chan = bt_l2cap_le_lookup_rx_cid(conn, cid);
		break;
#if defined(CONFIG_BLUETOOTH_BREDR)
	case BT_CONN_TYPE_BR:
		chan = bt_l2cap_br_lookup_rx_cid(conn, cid);
		break;
#endif /* CONFIG_BLUETOOTH_BREDR */
	default:
		chan = NULL;
		break;
	}

	if (!chan) {
		BT_WARN("Ignoring data for unknown CID 0x%04x", cid);
		net_buf_unref(buf);
		return;
	}

	l2cap_chan_recv(chan, buf);
	net_buf_unref(buf);
}

示例#3

文件： l2cap.c 项目： hudkmr/zephyr

static struct bt_l2cap_le_chan *l2cap_chan_alloc_cid(struct bt_conn *conn,
						     struct bt_l2cap_chan *chan)
{
	struct bt_l2cap_le_chan *ch = LE_CHAN(chan);
	uint16_t cid;

	/*
	 * No action needed if there's already a CID allocated, e.g. in
	 * the case of a fixed channel.
	 */
	if (ch && ch->rx.cid > 0) {
		return ch;
	}

	for (cid = L2CAP_LE_DYN_CID_START; cid <= L2CAP_LE_DYN_CID_END; cid++) {
		if (ch && !bt_l2cap_le_lookup_rx_cid(conn, cid)) {
			ch->rx.cid = cid;
			return ch;
		}
	}

	return NULL;
}