| /* |
| * 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 <vector> |
| |
| #include "packets/hci_packets.h" |
| #include "rootcanal/configuration.pb.h" |
| |
| namespace rootcanal { |
| using bluetooth::hci::HciVersion; |
| using bluetooth::hci::LmpVersion; |
| |
| // Local controller quirks. |
| struct ControllerQuirks { |
| // The specification states that the Random Address is invalid until |
| // explicitly set by the command LE Set Random Address. Certain HCI commands |
| // check for this condition. |
| // |
| // This quirk configures a default value for the LE random address in order |
| // to bypass this validation. The default random address will |
| // be ba:db:ad:ba:db:ad. |
| bool has_default_random_address{false}; |
| |
| // This quirks configures the controller to send an Hardware Error event |
| // in case a command is received before the HCI Reset command. |
| // |
| // Receiving a different command is indicative of the emulator being |
| // started from a snapshot. In this case the controller state is lost |
| // but the Host stack is loaded post-initialization. This quirk |
| // ensures that the stack will reset itself after reloading. |
| bool hardware_error_before_reset{false}; |
| }; |
| |
| // 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: |
| ControllerProperties(); |
| ControllerProperties(rootcanal::configuration::Controller const&); |
| ControllerProperties(ControllerProperties const&) = default; |
| ControllerProperties(ControllerProperties&&) = default; |
| ~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; |
| |
| // Check if the supported command mask is valid according to the |
| // specification. If fixup is true, then the mask is updated instead of |
| // returning an error. |
| bool CheckSupportedCommands() const; |
| |
| // Enabled quirks. |
| ControllerQuirks quirks{}; |
| |
| // Strict mode. |
| bool strict{true}; |
| |
| // 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 |
| |
| // Transports. |
| bool br_supported{true}; |
| bool le_supported{true}; |
| |
| // Local Supported Commands (Vol 4, Part E § 7.4.2). |
| std::array<uint8_t, 64> supported_commands{}; |
| |
| // Vendor Supported Commands. |
| bool supports_le_get_vendor_capabilities_command{true}; |
| |
| // 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{0}; |
| |
| // 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{16}; |
| |
| // LE Periodic Advertiser List Size (Vol 4, Part E § 7.8.73). |
| uint8_t le_periodic_advertiser_list_size{8}; |
| |
| // Vendor Information. |
| // Provide parameters returned by vendor specific commands. |
| std::vector<uint8_t> le_vendor_capabilities{}; |
| |
| // Enable the support for the CSR vendor command. |
| bool vendor_csr{true}; |
| |
| 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; |
| } |
| |
| bool SupportsLLFeature(bluetooth::hci::LLFeaturesBits bit) const { |
| return (le_features & static_cast<uint64_t>(bit)) != 0; |
| } |
| |
| bool SupportsCommand(bluetooth::hci::OpCodeIndex op_code) const { |
| int index = static_cast<int>(op_code); |
| return (supported_commands[index / 10] & (UINT64_C(1) << (index % 10))) != |
| 0; |
| } |
| |
| /// Return a bit mask with all supported PHYs |
| /// (0b001 = LE_1M, 0b010 = LE_2M, 0b100 = LE_CODED). |
| uint8_t LeSupportedPhys() const { |
| uint8_t supported_phys = 0x1; // LE_1M is always supported. |
| if (SupportsLLFeature(bluetooth::hci::LLFeaturesBits::LE_2M_PHY)) { |
| supported_phys |= 0x2; |
| } |
| if (SupportsLLFeature(bluetooth::hci::LLFeaturesBits::LE_CODED_PHY)) { |
| supported_phys |= 0x4; |
| } |
| return supported_phys; |
| } |
| }; |
| |
| } // namespace rootcanal |