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Andre Eisenbach89ba5282016-10-13 15:45:02 -07001//
2// Copyright 2016 The Android Open Source Project
3//
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at
7//
8// http://www.apache.org/licenses/LICENSE-2.0
9//
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15//
16
17#pragma once
18
Myles Watson274a3812017-02-23 06:29:08 -080019#include <stdlib.h>
20
Andre Eisenbach89ba5282016-10-13 15:45:02 -070021// HCI UART transport packet types (Volume 4, Part A, 2)
22enum HciPacketType {
23 HCI_PACKET_TYPE_UNKNOWN = 0,
24 HCI_PACKET_TYPE_COMMAND = 1,
25 HCI_PACKET_TYPE_ACL_DATA = 2,
26 HCI_PACKET_TYPE_SCO_DATA = 3,
Jakub Pawlowski13b4d312019-11-05 12:27:29 +010027 HCI_PACKET_TYPE_EVENT = 4,
28 HCI_PACKET_TYPE_ISO_DATA = 5,
Andre Eisenbach89ba5282016-10-13 15:45:02 -070029};
30
31// 2 bytes for opcode, 1 byte for parameter length (Volume 2, Part E, 5.4.1)
32const size_t HCI_COMMAND_PREAMBLE_SIZE = 3;
33const size_t HCI_LENGTH_OFFSET_CMD = 2;
34
35// 2 bytes for handle, 2 bytes for data length (Volume 2, Part E, 5.4.2)
36const size_t HCI_ACL_PREAMBLE_SIZE = 4;
37const size_t HCI_LENGTH_OFFSET_ACL = 2;
38
39// 2 bytes for handle, 1 byte for data length (Volume 2, Part E, 5.4.3)
40const size_t HCI_SCO_PREAMBLE_SIZE = 3;
41const size_t HCI_LENGTH_OFFSET_SCO = 2;
42
43// 1 byte for event code, 1 byte for parameter length (Volume 2, Part E, 5.4.4)
44const size_t HCI_EVENT_PREAMBLE_SIZE = 2;
45const size_t HCI_LENGTH_OFFSET_EVT = 1;
46
Jakub Pawlowskidb779b42020-11-23 14:07:54 +010047// 2 bytes for handle and flags, 2 byte for data length (Volume 4, Part E, 5.4.5)
48const size_t HCI_ISO_PREAMBLE_SIZE = 4;
49const size_t HCI_LENGTH_OFFSET_ISO = 2;
50
Andre Eisenbach89ba5282016-10-13 15:45:02 -070051const size_t HCI_PREAMBLE_SIZE_MAX = HCI_ACL_PREAMBLE_SIZE;
Myles Watsona7d33b32017-01-24 09:09:58 -080052
53// Event codes (Volume 2, Part E, 7.7.14)
54const uint8_t HCI_COMMAND_COMPLETE_EVENT = 0x0E;