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/*
* 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 <array>
#include <cstdint>
#include <optional>
#include <string>
#include <vector>
#include "hci/address.h"
#include "hci/hci_packets.h"
namespace rootcanal {
using bluetooth::hci::HciVersion;
using bluetooth::hci::LmpVersion;
// Local controller information.
//
// Provide the Informational Parameters returned by HCI commands
// in the range of the same name (cf. [4] E.7.4).
// The informational parameters are fixed by the manufacturer of the Bluetooth
// hardware. These parameters provide information about the BR/EDR Controller
// and the capabilities of the Link Manager and Baseband in the BR/EDR
// Controller. The Host device cannot modify any of these parameters.
struct ControllerProperties {
public:
explicit ControllerProperties(const std::string& filename = "");
~ControllerProperties() = default;
// Perform a bitwise and operation on the supported commands mask;
// the default bit setting is either loaded from the configuration
// file or all 1s.
void SetSupportedCommands(std::array<uint8_t, 64> supported_commands);
// Check if the feature masks are valid according to the specification.
bool CheckSupportedFeatures() const;
// Local Version Information (Vol 4, Part E § 7.4.1).
HciVersion hci_version{HciVersion::V_5_3};
LmpVersion lmp_version{LmpVersion::V_5_3};
uint16_t hci_subversion{0};
uint16_t lmp_subversion{0};
uint16_t company_identifier{0x00E0}; // Google
// Local Supported Commands (Vol 4, Part E § 7.4.2).
std::array<uint8_t, 64> supported_commands;
// Local Supported Features (Vol 4, Part E § 7.4.3) and
// Local Extended Features (Vol 4, Part E § 7.4.3).
std::array<uint64_t, 3> lmp_features;
// LE Local Supported Features (Vol 4, Part E § 7.8.3).
uint64_t le_features;
// Buffer Size (Vol 4, Part E § 7.4.5).
uint16_t acl_data_packet_length{1024};
uint8_t sco_data_packet_length{255};
uint16_t total_num_acl_data_packets{10};
uint16_t total_num_sco_data_packets{10};
// LE Buffer Size (Vol 4, Part E § 7.8.2).
uint16_t le_acl_data_packet_length{27};
uint16_t iso_data_packet_length{1021};
uint8_t total_num_le_acl_data_packets{20};
uint8_t total_num_iso_data_packets{12};
// Number of Supported IAC (Vol 4, Part E § 7.3.43).
uint8_t num_supported_iac{4};
// LE Advertising Physical Channel TX Power (Vol 4, Part E § 7.8.6).
uint8_t le_advertising_physical_channel_tx_power{static_cast<uint8_t>(-10)};
// Supported Codecs (Vol 4, Part E § 7.4.8).
// Implements the [v1] version only.
std::vector<uint8_t> supported_standard_codecs{0};
std::vector<uint32_t> supported_vendor_specific_codecs{};
// LE Filter Accept List Size (Vol 4, Part E § 7.8.14).
uint8_t le_filter_accept_list_size{16};
// LE Resolving List Size (Vol 4, Part E § 7.8.41).
uint8_t le_resolving_list_size{16};
// LE Supported States (Vol 4, Part E § 7.8.27).
uint64_t le_supported_states{0x3ffffffffff};
// LE Maximum Advertising Data Length (Vol 4, Part E § 7.8.57).
// Note: valid range 0x001F to 0x0672.
uint16_t le_max_advertising_data_length{512};
// LE Number of Supported Advertising Sets (Vol 4, Part E § 7.8.58)
// Note: the controller can change the number of advertising sets
// at any time. This behaviour is not emulated here.
uint8_t le_num_supported_advertising_sets{8};
// Vendor Information.
// Provide parameters returned by vendor specific commands.
std::vector<uint8_t> le_vendor_capabilities{};
bool SupportsLMPFeature(bluetooth::hci::LMPFeaturesPage0Bits bit) const {
return (lmp_features[0] & static_cast<uint64_t>(bit)) != 0;
}
bool SupportsLMPFeature(bluetooth::hci::LMPFeaturesPage2Bits bit) const {
return (lmp_features[2] & static_cast<uint64_t>(bit)) != 0;
}
};
} // namespace rootcanal
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