| // |
| // Copyright 2015 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #pragma once |
| |
| #include <cstdint> |
| #include <memory> |
| #include <vector> |
| |
| #include "vendor_libs/test_vendor_lib/include/packet.h" |
| |
| namespace test_vendor_lib { |
| |
| // The following is specified in the Bluetooth Core Specification Version 4.2, |
| // Volume 2, Part E, Section 5.4.4 (page 477). Event Packets begin with a 2 |
| // octet header formatted as follows: |
| // - Event code: 1 octet |
| // - Payload size (in octets): 1 octet |
| // The header is followed by the payload, which contains event specific |
| // parameters and has a maximum size of 255 octets. Valid event codes are |
| // listed in stack/include/hcidefs.h. They can range from 0x00 to 0xFF, with |
| // 0xFF reserved for vendor specific debug events. Note the payload size |
| // describes the total size of the event parameters and not the number of |
| // parameters. The event parameters contained in the payload will be an integer |
| // number of octets in size. Each flavor of event packet is created via a static |
| // factory function that takes the event type-specific parameters and returns an |
| // initialized event packet from that data. |
| class EventPacket : public Packet { |
| public: |
| virtual ~EventPacket() override = default; |
| |
| std::uint8_t GetEventCode() const; |
| |
| // Static functions for creating event packets: |
| |
| // Creates and returns a command complete event packet. See the Bluetooth |
| // Core Specification Version 4.2, Volume 2, Part E, Section 7.7.14 (page 861) |
| // for more information about the command complete event. |
| // Event Parameters: |
| // |num_hci_command_packets| |
| // Indicates the number of HCI command packets the host can send to the |
| // controller. If |num_hci_command_packets| is 0, the controller would |
| // like to stop receiving commands from the host (to indicate |
| // readiness again, the controller sends a command complete event with |
| // |command_opcode| to 0x0000 (no op) and |num_hci_command_packets| > 1). |
| // |command_opcode| |
| // The opcode of the command that caused this event. |
| // |return_parameters| |
| // Contains any event specific parameters that should |
| // be sent to the host. |
| static std::unique_ptr<EventPacket> CreateCommandCompleteEvent( |
| std::uint8_t num_hci_command_packets, std::uint16_t command_opcode, |
| const std::vector<std::uint8_t>& event_return_parameters); |
| |
| // Creates and returns a command complete event packet. See the Bluetooth |
| // Core Specification Version 4.2, Volume 2, Part E, Section 7.7.15 (page 862) |
| // for more information about the command complete event. |
| // Event Parameters: |
| // Status |
| // 0x00: Command currently in pending. |
| // 0x01-0xFF: Command failed. |
| // |num_hci_command_packets| |
| // Indicates the number of HCI command packets the host can send to the |
| // controller. If |num_hci_command_packets| is 0, the controller would |
| // like to stop receiving commands from the host (to indicate |
| // readiness again, the controller sends a command complete event with |
| // |command_opcode| to 0x0000 (no op) and |num_hci_command_packets| > 1). |
| // |command_opcode| |
| // The opcode of the command that caused this event. |
| static std::unique_ptr<EventPacket> CreateCommandStatusEvent( |
| std::uint8_t num_hci_command_packets, std::uint16_t command_opcode); |
| |
| // Creates and returns an inquiry result event packet. See the Bluetooth |
| // Core Specification Version 4.2, Volume 2, Part E, Section 7.7.2 (page 844) |
| // for more information about the command complete event. |
| // Event Parameters: |
| // Num Responses (1 octet) |
| // 0xXX: Number of responses from the inquiry. |
| // Bd Addresses (6 octets * Num Responses) |
| // 0xXXXXXXXXXXX: Bd Address for each device which responded. |
| // Page Scan Repetition Mode (1 octet * Num Responses) |
| // 0x00: R0 |
| // 0x01: R1 |
| // 0x02: R2 |
| // 0x03-0xFF: Reserved. |
| // Reserved 1 (1 octet * Num Responses) |
| // Originally Page Scan Period Mode parameter. No longer in use. |
| // Reserved 2 (1 octet * Num Responses) |
| // Originally Page Scan Mode parameter. No longer in use. |
| // Class of Device (3 octet * Num Responses) |
| // 0xXXXXXX: Class of device. |
| // Clock Offset (2 octet * Num Responses) |
| // Bits 14-0: Bits 16-2 of CLKNslave-CLK. |
| // Bits 15: Reserved. |
| static std::unique_ptr<EventPacket> CreateInquiryResultEvent( |
| std::uint8_t num_responses, const std::vector<std::uint8_t>& bd_addresses, |
| const std::vector<std::uint8_t>& page_scan_repetition_mode, |
| const std::vector<std::uint8_t>& page_scan_period_mode, |
| const std::vector<std::uint8_t>& page_scan_mode, |
| const std::vector<std::uint8_t>& class_of_device, |
| const std::vector<std::uint8_t>& clock_offset); |
| |
| // Creates and returns an inquiry result event packet. See the Bluetooth |
| // Core Specification Version 4.2, Volume 2, Part E, Section 7.7.38 (page 896) |
| // for more information about the command complete event. |
| // Event Parameters: |
| // Num Responses (1 octet) |
| // 0x01: Always contains a single response. |
| // Bd Addresses (6 octets * Num Responses) |
| // 0xXXXXXXXXXXX: Bd Address for each device which responded. |
| // Page Scan Repetition Mode (1 octet * Num Responses) |
| // 0x00: R0 |
| // 0x01: R1 |
| // 0x02: R2 |
| // 0x03-0xFF: Reserved. |
| // Reserved 1 (1 octet * Num Responses) |
| // Originally Page Scan Period Mode parameter. No longer in use. |
| // Class of Device (3 octet * Num Responses) |
| // 0xXXXXXX: Class of device. |
| // Clock Offset (2 octet * Num Responses) |
| // Bits 14-0: Bits 16-2 of CLKNslave-CLK. |
| // Bits 15: Reserved. |
| // RSSI (1 octet) |
| // 0xXX: Ranges from -127 to +20. Units are dBm. |
| // Extended Inquiry Response (240 octets) |
| // Defined in Volumne 2, Part C, Section 8. Also see the Supplement to the |
| // Bluetooth Core Specificiation for data type definitions and formats. |
| static std::unique_ptr<EventPacket> CreateExtendedInquiryResultEvent( |
| const std::vector<std::uint8_t>& bd_address, |
| const std::vector<std::uint8_t>& page_scan_repetition_mode, |
| const std::vector<std::uint8_t>& page_scan_period_mode, |
| const std::vector<std::uint8_t>& class_of_device, |
| const std::vector<std::uint8_t>& clock_offset, |
| const std::vector<std::uint8_t>& rssi, |
| const std::vector<std::uint8_t>& extended_inquiry_response); |
| |
| // Size in octets of a data packet header, which consists of a 1 octet |
| // event code and a 1 octet payload size. |
| static const size_t kEventHeaderSize = 2; |
| |
| private: |
| // Takes in the event parameters in |payload|. These parameters vary by event |
| // and are detailed in the Bluetooth Core Specification. |
| EventPacket(std::uint8_t event_code, |
| const std::vector<std::uint8_t>& payload); |
| }; |
| |
| } // namespace test_vendor_lib |