1 /******************************************************************************
3 * Copyright 2014 Google, Inc.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 ******************************************************************************/
22 #include "hci_layer.h"
23 #include "osi/include/allocator.h"
25 typedef void (*transmit_finished_cb)(BT_HDR* packet, bool all_fragments_sent);
26 typedef void (*packet_reassembled_cb)(BT_HDR* packet);
27 typedef void (*packet_fragmented_cb)(BT_HDR* packet,
28 bool send_transmit_finished);
31 // Called for every packet fragment.
32 packet_fragmented_cb fragmented;
34 // Called for every completely reassembled packet.
35 packet_reassembled_cb reassembled;
37 // Called when the fragmenter finishes sending all requested fragments,
38 // but the packet has not been entirely sent.
39 transmit_finished_cb transmit_finished;
40 } packet_fragmenter_callbacks_t;
42 typedef struct packet_fragmenter_t {
43 // Initialize the fragmenter, specifying the |result_callbacks|.
44 void (*init)(const packet_fragmenter_callbacks_t* result_callbacks);
46 // Release all resources associated with the fragmenter.
47 void (*cleanup)(void);
49 // Fragments |packet| if necessary and hands off everything to the fragmented
51 void (*fragment_and_dispatch)(BT_HDR* packet);
52 // If |packet| is a complete packet, forwards to the reassembled callback.
54 // holds onto it until all fragments arrive, at which point the reassembled
56 // with the reassembled data.
57 void (*reassemble_and_dispatch)(BT_HDR* packet);
58 } packet_fragmenter_t;
60 const packet_fragmenter_t* packet_fragmenter_get_interface();
62 const packet_fragmenter_t* packet_fragmenter_get_test_interface(
63 const controller_t* controller_interface,
64 const allocator_t* buffer_allocator_interface);