1 /****************************************************************************** 2 * 3 * Copyright (C) 2014 Google, Inc. 4 * 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: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 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. 16 * 17 ******************************************************************************/ 18 19 #pragma once 20 21 #include "osi/include/allocator.h" 22 #include "bt_types.h" 23 #include "hci_layer.h" 24 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, bool send_transmit_finished); 28 29 typedef struct { 30 // Called for every packet fragment. 31 packet_fragmented_cb fragmented; 32 33 // Called for every completely reassembled packet. 34 packet_reassembled_cb reassembled; 35 36 // Called when the fragmenter finishes sending all requested fragments, 37 // but the packet has not been entirely sent. 38 transmit_finished_cb transmit_finished; 39 } packet_fragmenter_callbacks_t; 40 41 typedef struct packet_fragmenter_t { 42 // Initialize the fragmenter, specifying the |result_callbacks|. 43 void (*init)(const packet_fragmenter_callbacks_t *result_callbacks); 44 45 // Release all resources associated with the fragmenter. 46 void (*cleanup)(void); 47 48 // Fragments |packet| if necessary and hands off everything to the fragmented callback. 49 void (*fragment_and_dispatch)(BT_HDR *packet); 50 // If |packet| is a complete packet, forwards to the reassembled callback. Otherwise 51 // holds onto it until all fragments arrive, at which point the reassembled callback is called 52 // with the reassembled data. 53 void (*reassemble_and_dispatch)(BT_HDR *packet); 54 } packet_fragmenter_t; 55 56 const packet_fragmenter_t *packet_fragmenter_get_interface(); 57 58 const packet_fragmenter_t *packet_fragmenter_get_test_interface( 59 const controller_t *controller_interface, 60 const allocator_t *buffer_allocator_interface); 61