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50 lines
1.6 KiB
50 lines
1.6 KiB
4 months ago
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// Copyright 2016 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#pragma once
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#include <stdlib.h>
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// HCI UART transport packet types (Volume 4, Part A, 2)
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enum HciPacketType {
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HCI_PACKET_TYPE_UNKNOWN = 0,
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HCI_PACKET_TYPE_COMMAND = 1,
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HCI_PACKET_TYPE_ACL_DATA = 2,
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HCI_PACKET_TYPE_SCO_DATA = 3,
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HCI_PACKET_TYPE_EVENT = 4
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};
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// 2 bytes for opcode, 1 byte for parameter length (Volume 2, Part E, 5.4.1)
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const size_t HCI_COMMAND_PREAMBLE_SIZE = 3;
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const size_t HCI_LENGTH_OFFSET_CMD = 2;
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// 2 bytes for handle, 2 bytes for data length (Volume 2, Part E, 5.4.2)
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const size_t HCI_ACL_PREAMBLE_SIZE = 4;
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const size_t HCI_LENGTH_OFFSET_ACL = 2;
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// 2 bytes for handle, 1 byte for data length (Volume 2, Part E, 5.4.3)
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const size_t HCI_SCO_PREAMBLE_SIZE = 3;
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const size_t HCI_LENGTH_OFFSET_SCO = 2;
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// 1 byte for event code, 1 byte for parameter length (Volume 2, Part E, 5.4.4)
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const size_t HCI_EVENT_PREAMBLE_SIZE = 2;
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const size_t HCI_LENGTH_OFFSET_EVT = 1;
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const size_t HCI_PREAMBLE_SIZE_MAX = HCI_ACL_PREAMBLE_SIZE;
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// Event codes (Volume 2, Part E, 7.7.14)
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const uint8_t HCI_COMMAND_COMPLETE_EVENT = 0x0E;
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