diff options
Diffstat (limited to 'src/input_common/helpers/joycon_protocol/nfc.cpp')
| -rw-r--r-- | src/input_common/helpers/joycon_protocol/nfc.cpp | 985 |
1 files changed, 985 insertions, 0 deletions
diff --git a/src/input_common/helpers/joycon_protocol/nfc.cpp b/src/input_common/helpers/joycon_protocol/nfc.cpp new file mode 100644 index 000000000..261f46255 --- /dev/null +++ b/src/input_common/helpers/joycon_protocol/nfc.cpp @@ -0,0 +1,985 @@ +// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include <thread> +#include "common/logging/log.h" +#include "input_common/helpers/joycon_protocol/nfc.h" + +namespace InputCommon::Joycon { + +NfcProtocol::NfcProtocol(std::shared_ptr<JoyconHandle> handle) + : JoyconCommonProtocol(std::move(handle)) {} + +DriverResult NfcProtocol::EnableNfc() { + LOG_INFO(Input, "Enable NFC"); + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + + if (result == DriverResult::Success) { + result = SetReportMode(ReportMode::NFC_IR_MODE_60HZ); + } + if (result == DriverResult::Success) { + result = EnableMCU(true); + } + if (result == DriverResult::Success) { + result = WaitSetMCUMode(ReportMode::NFC_IR_MODE_60HZ, MCUMode::Standby); + } + if (result == DriverResult::Success) { + const MCUConfig config{ + .command = MCUCommand::ConfigureMCU, + .sub_command = MCUSubCommand::SetMCUMode, + .mode = MCUMode::NFC, + .crc = {}, + }; + + result = ConfigureMCU(config); + } + if (result == DriverResult::Success) { + result = WaitSetMCUMode(ReportMode::NFC_IR_MODE_60HZ, MCUMode::NFC); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::Ready); + } + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStopPollingRequest(output); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::Ready); + } + if (result == DriverResult::Success) { + is_enabled = true; + } + + return result; +} + +DriverResult NfcProtocol::DisableNfc() { + LOG_DEBUG(Input, "Disable NFC"); + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + + if (result == DriverResult::Success) { + result = EnableMCU(false); + } + + is_enabled = false; + is_polling = false; + + return result; +} + +DriverResult NfcProtocol::StartNFCPollingMode() { + LOG_DEBUG(Input, "Start NFC polling Mode"); + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStartPollingRequest(output); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::Polling); + } + if (result == DriverResult::Success) { + is_polling = true; + } + + return result; +} + +DriverResult NfcProtocol::StopNFCPollingMode() { + LOG_DEBUG(Input, "Stop NFC polling Mode"); + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStopPollingRequest(output); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::WriteReady); + } + if (result == DriverResult::Success) { + is_polling = false; + } + + return result; +} + +DriverResult NfcProtocol::GetTagInfo(Joycon::TagInfo& tag_info) { + if (update_counter++ < AMIIBO_UPDATE_DELAY) { + return DriverResult::Delayed; + } + update_counter = 0; + + LOG_DEBUG(Input, "Scan for amiibos"); + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + TagFoundData tag_data{}; + + if (result == DriverResult::Success) { + result = IsTagInRange(tag_data); + } + + if (result == DriverResult::Success) { + tag_info = { + .uuid_length = tag_data.uuid_size, + .protocol = 1, + .tag_type = tag_data.type, + .uuid = {}, + }; + + memcpy(tag_info.uuid.data(), tag_data.uuid.data(), tag_data.uuid_size); + + // Investigate why mifare type is not correct + if (tag_info.tag_type == 144) { + tag_info.tag_type = 1U << 6; + } + + std::string uuid_string; + for (auto& content : tag_data.uuid) { + uuid_string += fmt::format(" {:02x}", content); + } + LOG_INFO(Input, "Tag detected, type={}, uuid={}", tag_data.type, uuid_string); + } + + return result; +} + +DriverResult NfcProtocol::ReadAmiibo(std::vector<u8>& data) { + LOG_DEBUG(Input, "Scan for amiibos"); + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + TagFoundData tag_data{}; + + if (result == DriverResult::Success) { + result = IsTagInRange(tag_data, 7); + } + + if (result == DriverResult::Success) { + result = GetAmiiboData(data); + } + + return result; +} + +DriverResult NfcProtocol::WriteAmiibo(std::span<const u8> data) { + LOG_DEBUG(Input, "Write amiibo"); + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + TagUUID tag_uuid = GetTagUUID(data); + TagFoundData tag_data{}; + + if (result == DriverResult::Success) { + result = IsTagInRange(tag_data, 7); + } + if (result == DriverResult::Success) { + if (tag_data.uuid != tag_uuid) { + result = DriverResult::InvalidParameters; + } + } + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStopPollingRequest(output); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::Ready); + } + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStartPollingRequest(output, true); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::WriteReady); + } + if (result == DriverResult::Success) { + result = WriteAmiiboData(tag_uuid, data); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::WriteDone); + } + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStopPollingRequest(output); + } + + return result; +} + +DriverResult NfcProtocol::ReadMifare(std::span<const MifareReadChunk> read_request, + std::span<MifareReadData> out_data) { + LOG_DEBUG(Input, "Read mifare"); + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + TagFoundData tag_data{}; + MifareUUID tag_uuid{}; + + if (result == DriverResult::Success) { + result = IsTagInRange(tag_data, 7); + } + if (result == DriverResult::Success) { + memcpy(tag_uuid.data(), tag_data.uuid.data(), sizeof(MifareUUID)); + result = GetMifareData(tag_uuid, read_request, out_data); + } + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStopPollingRequest(output); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::Ready); + } + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStartPollingRequest(output, true); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::WriteReady); + } + return result; +} + +DriverResult NfcProtocol::WriteMifare(std::span<const MifareWriteChunk> write_request) { + LOG_DEBUG(Input, "Write mifare"); + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + TagFoundData tag_data{}; + MifareUUID tag_uuid{}; + + if (result == DriverResult::Success) { + result = IsTagInRange(tag_data, 7); + } + if (result == DriverResult::Success) { + memcpy(tag_uuid.data(), tag_data.uuid.data(), sizeof(MifareUUID)); + result = WriteMifareData(tag_uuid, write_request); + } + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStopPollingRequest(output); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::Ready); + } + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStartPollingRequest(output, true); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::WriteReady); + } + return result; +} + +bool NfcProtocol::HasAmiibo() { + if (update_counter++ < AMIIBO_UPDATE_DELAY) { + return true; + } + update_counter = 0; + + ScopedSetBlocking sb(this); + DriverResult result{DriverResult::Success}; + TagFoundData tag_data{}; + + if (result == DriverResult::Success) { + result = IsTagInRange(tag_data, 7); + } + + return result == DriverResult::Success; +} + +DriverResult NfcProtocol::WaitUntilNfcIs(NFCStatus status) { + constexpr std::size_t timeout_limit = 10; + MCUCommandResponse output{}; + std::size_t tries = 0; + + do { + auto result = SendNextPackageRequest(output, {}); + + if (result != DriverResult::Success) { + return result; + } + if (tries++ > timeout_limit) { + return DriverResult::Timeout; + } + } while (output.mcu_report != MCUReport::NFCState || + (output.mcu_data[1] << 8) + output.mcu_data[0] != 0x0500 || + output.mcu_data[5] != 0x31 || output.mcu_data[6] != static_cast<u8>(status)); + + return DriverResult::Success; +} + +DriverResult NfcProtocol::IsTagInRange(TagFoundData& data, std::size_t timeout_limit) { + MCUCommandResponse output{}; + std::size_t tries = 0; + + do { + const auto result = SendNextPackageRequest(output, {}); + if (result != DriverResult::Success) { + return result; + } + if (tries++ > timeout_limit) { + return DriverResult::Timeout; + } + } while (output.mcu_report != MCUReport::NFCState || + (output.mcu_data[1] << 8) + output.mcu_data[0] != 0x0500 || + (output.mcu_data[6] != 0x09 && output.mcu_data[6] != 0x04)); + + data.type = output.mcu_data[12]; + data.uuid_size = std::min(output.mcu_data[14], static_cast<u8>(sizeof(TagUUID))); + memcpy(data.uuid.data(), output.mcu_data.data() + 15, data.uuid.size()); + + return DriverResult::Success; +} + +DriverResult NfcProtocol::GetAmiiboData(std::vector<u8>& ntag_data) { + constexpr std::size_t timeout_limit = 60; + MCUCommandResponse output{}; + std::size_t tries = 0; + + u8 package_index = 0; + std::size_t ntag_buffer_pos = 0; + auto result = SendReadAmiiboRequest(output, NFCPages::Block135); + + if (result != DriverResult::Success) { + return result; + } + + // Read Tag data + while (tries++ < timeout_limit) { + result = SendNextPackageRequest(output, package_index); + const auto nfc_status = static_cast<NFCStatus>(output.mcu_data[6]); + + if (result != DriverResult::Success) { + return result; + } + + if ((output.mcu_report == MCUReport::NFCReadData || + output.mcu_report == MCUReport::NFCState) && + nfc_status == NFCStatus::TagLost) { + return DriverResult::ErrorReadingData; + } + + if (output.mcu_report == MCUReport::NFCReadData && output.mcu_data[1] == 0x07) { + std::size_t payload_size = (output.mcu_data[4] << 8 | output.mcu_data[5]) & 0x7FF; + if (output.mcu_data[2] == 0x01) { + memcpy(ntag_data.data() + ntag_buffer_pos, output.mcu_data.data() + 66, + payload_size - 60); + ntag_buffer_pos += payload_size - 60; + } else { + memcpy(ntag_data.data() + ntag_buffer_pos, output.mcu_data.data() + 6, + payload_size); + } + package_index++; + continue; + } + + if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::LastPackage) { + LOG_INFO(Input, "Finished reading amiibo"); + return DriverResult::Success; + } + } + + return DriverResult::Timeout; +} + +DriverResult NfcProtocol::WriteAmiiboData(const TagUUID& tag_uuid, std::span<const u8> data) { + constexpr std::size_t timeout_limit = 60; + const auto nfc_data = MakeAmiiboWritePackage(tag_uuid, data); + const std::vector<u8> nfc_buffer_data = SerializeWritePackage(nfc_data); + std::span<const u8> buffer(nfc_buffer_data); + MCUCommandResponse output{}; + u8 block_id = 1; + u8 package_index = 0; + std::size_t tries = 0; + std::size_t current_position = 0; + + LOG_INFO(Input, "Writing amiibo data"); + + auto result = SendWriteAmiiboRequest(output, tag_uuid); + + if (result != DriverResult::Success) { + return result; + } + + // Read Tag data but ignore the actual sent data + while (tries++ < timeout_limit) { + result = SendNextPackageRequest(output, package_index); + const auto nfc_status = static_cast<NFCStatus>(output.mcu_data[6]); + + if (result != DriverResult::Success) { + return result; + } + + if ((output.mcu_report == MCUReport::NFCReadData || + output.mcu_report == MCUReport::NFCState) && + nfc_status == NFCStatus::TagLost) { + return DriverResult::ErrorReadingData; + } + + if (output.mcu_report == MCUReport::NFCReadData && output.mcu_data[1] == 0x07) { + package_index++; + continue; + } + + if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::LastPackage) { + LOG_INFO(Input, "Finished reading amiibo"); + break; + } + } + + // Send Data. Nfc buffer size is 31, Send the data in smaller packages + while (current_position < buffer.size() && tries++ < timeout_limit) { + const std::size_t next_position = + std::min(current_position + sizeof(NFCRequestState::raw_data), buffer.size()); + const std::size_t block_size = next_position - current_position; + const bool is_last_packet = block_size < sizeof(NFCRequestState::raw_data); + + SendWriteDataAmiiboRequest(output, block_id, is_last_packet, + buffer.subspan(current_position, block_size)); + + const auto nfc_status = static_cast<NFCStatus>(output.mcu_data[6]); + + if ((output.mcu_report == MCUReport::NFCReadData || + output.mcu_report == MCUReport::NFCState) && + nfc_status == NFCStatus::TagLost) { + return DriverResult::ErrorReadingData; + } + + // Increase position when data is confirmed by the joycon + if (output.mcu_report == MCUReport::NFCState && + (output.mcu_data[1] << 8) + output.mcu_data[0] == 0x0500 && + output.mcu_data[3] == block_id) { + block_id++; + current_position = next_position; + } + } + + return result; +} + +DriverResult NfcProtocol::GetMifareData(const MifareUUID& tag_uuid, + std::span<const MifareReadChunk> read_request, + std::span<MifareReadData> out_data) { + constexpr std::size_t timeout_limit = 60; + const auto nfc_data = MakeMifareReadPackage(tag_uuid, read_request); + const std::vector<u8> nfc_buffer_data = SerializeMifareReadPackage(nfc_data); + std::span<const u8> buffer(nfc_buffer_data); + DriverResult result = DriverResult::Success; + MCUCommandResponse output{}; + u8 block_id = 1; + u8 package_index = 0; + std::size_t tries = 0; + std::size_t current_position = 0; + + LOG_INFO(Input, "Reading Mifare data"); + + // Send data request. Nfc buffer size is 31, Send the data in smaller packages + while (current_position < buffer.size() && tries++ < timeout_limit) { + const std::size_t next_position = + std::min(current_position + sizeof(NFCRequestState::raw_data), buffer.size()); + const std::size_t block_size = next_position - current_position; + const bool is_last_packet = block_size < sizeof(NFCRequestState::raw_data); + + SendReadDataMifareRequest(output, block_id, is_last_packet, + buffer.subspan(current_position, block_size)); + + const auto nfc_status = static_cast<NFCStatus>(output.mcu_data[6]); + + if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::TagLost) { + return DriverResult::ErrorReadingData; + } + + // Increase position when data is confirmed by the joycon + if (output.mcu_report == MCUReport::NFCState && + (output.mcu_data[1] << 8) + output.mcu_data[0] == 0x0500 && + output.mcu_data[3] == block_id) { + block_id++; + current_position = next_position; + } + } + + if (result != DriverResult::Success) { + return result; + } + + // Wait for reply and save the output data + while (tries++ < timeout_limit) { + result = SendNextPackageRequest(output, package_index); + const auto nfc_status = static_cast<NFCStatus>(output.mcu_data[6]); + + if (result != DriverResult::Success) { + return result; + } + + if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::TagLost) { + return DriverResult::ErrorReadingData; + } + + if (output.mcu_report == MCUReport::NFCState && output.mcu_data[1] == 0x10) { + constexpr std::size_t DATA_LENGHT = 0x10 + 1; + constexpr std::size_t DATA_START = 11; + const u8 number_of_elements = output.mcu_data[10]; + for (std::size_t i = 0; i < number_of_elements; i++) { + out_data[i].sector = output.mcu_data[DATA_START + (i * DATA_LENGHT)]; + memcpy(out_data[i].data.data(), + output.mcu_data.data() + DATA_START + 1 + (i * DATA_LENGHT), + sizeof(MifareReadData::data)); + } + package_index++; + continue; + } + + if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::MifareDone) { + LOG_INFO(Input, "Finished reading mifare"); + break; + } + } + + return result; +} + +DriverResult NfcProtocol::WriteMifareData(const MifareUUID& tag_uuid, + std::span<const MifareWriteChunk> write_request) { + constexpr std::size_t timeout_limit = 60; + const auto nfc_data = MakeMifareWritePackage(tag_uuid, write_request); + const std::vector<u8> nfc_buffer_data = SerializeMifareWritePackage(nfc_data); + std::span<const u8> buffer(nfc_buffer_data); + DriverResult result = DriverResult::Success; + MCUCommandResponse output{}; + u8 block_id = 1; + u8 package_index = 0; + std::size_t tries = 0; + std::size_t current_position = 0; + + LOG_INFO(Input, "Writing Mifare data"); + + // Send data request. Nfc buffer size is 31, Send the data in smaller packages + while (current_position < buffer.size() && tries++ < timeout_limit) { + const std::size_t next_position = + std::min(current_position + sizeof(NFCRequestState::raw_data), buffer.size()); + const std::size_t block_size = next_position - current_position; + const bool is_last_packet = block_size < sizeof(NFCRequestState::raw_data); + + SendReadDataMifareRequest(output, block_id, is_last_packet, + buffer.subspan(current_position, block_size)); + + const auto nfc_status = static_cast<NFCStatus>(output.mcu_data[6]); + + if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::TagLost) { + return DriverResult::ErrorReadingData; + } + + // Increase position when data is confirmed by the joycon + if (output.mcu_report == MCUReport::NFCState && + (output.mcu_data[1] << 8) + output.mcu_data[0] == 0x0500 && + output.mcu_data[3] == block_id) { + block_id++; + current_position = next_position; + } + } + + if (result != DriverResult::Success) { + return result; + } + + // Wait for reply and ignore the output data + while (tries++ < timeout_limit) { + result = SendNextPackageRequest(output, package_index); + const auto nfc_status = static_cast<NFCStatus>(output.mcu_data[6]); + + if (result != DriverResult::Success) { + return result; + } + + if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::TagLost) { + return DriverResult::ErrorReadingData; + } + + if (output.mcu_report == MCUReport::NFCState && output.mcu_data[1] == 0x10) { + package_index++; + continue; + } + + if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::MifareDone) { + LOG_INFO(Input, "Finished writing mifare"); + break; + } + } + + return result; +} + +DriverResult NfcProtocol::SendStartPollingRequest(MCUCommandResponse& output, + bool is_second_attempt) { + NFCRequestState request{ + .command_argument = NFCCommand::StartPolling, + .block_id = {}, + .packet_id = {}, + .packet_flag = MCUPacketFlag::LastCommandPacket, + .data_length = sizeof(NFCPollingCommandData), + .nfc_polling = + { + .enable_mifare = 0x00, + .unknown_1 = static_cast<u8>(is_second_attempt ? 0xe8 : 0x00), + .unknown_2 = static_cast<u8>(is_second_attempt ? 0x03 : 0x00), + .unknown_3 = 0x2c, + .unknown_4 = 0x01, + }, + .crc = {}, + }; + + std::array<u8, sizeof(NFCRequestState)> request_data{}; + memcpy(request_data.data(), &request, sizeof(NFCRequestState)); + request_data[36] = CalculateMCU_CRC8(request_data.data(), 36); + return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, MCUSubCommand::ReadDeviceMode, request_data, + output); +} + +DriverResult NfcProtocol::SendStopPollingRequest(MCUCommandResponse& output) { + NFCRequestState request{ + .command_argument = NFCCommand::StopPolling, + .block_id = {}, + .packet_id = {}, + .packet_flag = MCUPacketFlag::LastCommandPacket, + .data_length = {}, + .raw_data = {}, + .crc = {}, + }; + + std::array<u8, sizeof(NFCRequestState)> request_data{}; + memcpy(request_data.data(), &request, sizeof(NFCRequestState)); + request_data[36] = CalculateMCU_CRC8(request_data.data(), 36); + return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, MCUSubCommand::ReadDeviceMode, request_data, + output); +} + +DriverResult NfcProtocol::SendNextPackageRequest(MCUCommandResponse& output, u8 packet_id) { + NFCRequestState request{ + .command_argument = NFCCommand::StartWaitingRecieve, + .block_id = {}, + .packet_id = packet_id, + .packet_flag = MCUPacketFlag::LastCommandPacket, + .data_length = {}, + .raw_data = {}, + .crc = {}, + }; + + std::vector<u8> request_data(sizeof(NFCRequestState)); + memcpy(request_data.data(), &request, sizeof(NFCRequestState)); + request_data[36] = CalculateMCU_CRC8(request_data.data(), 36); + return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, MCUSubCommand::ReadDeviceMode, request_data, + output); +} + +DriverResult NfcProtocol::SendReadAmiiboRequest(MCUCommandResponse& output, NFCPages ntag_pages) { + NFCRequestState request{ + .command_argument = NFCCommand::ReadNtag, + .block_id = {}, + .packet_id = {}, + .packet_flag = MCUPacketFlag::LastCommandPacket, + .data_length = sizeof(NFCReadCommandData), + .nfc_read = + { + .unknown = 0xd0, + .uuid_length = sizeof(NFCReadCommandData::uid), + .uid = {}, + .tag_type = NFCTagType::Ntag215, + .read_block = GetReadBlockCommand(ntag_pages), + }, + .crc = {}, + }; + + std::array<u8, sizeof(NFCRequestState)> request_data{}; + memcpy(request_data.data(), &request, sizeof(NFCRequestState)); + request_data[36] = CalculateMCU_CRC8(request_data.data(), 36); + return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, MCUSubCommand::ReadDeviceMode, request_data, + output); +} + +DriverResult NfcProtocol::SendWriteAmiiboRequest(MCUCommandResponse& output, + const TagUUID& tag_uuid) { + NFCRequestState request{ + .command_argument = NFCCommand::ReadNtag, + .block_id = {}, + .packet_id = {}, + .packet_flag = MCUPacketFlag::LastCommandPacket, + .data_length = sizeof(NFCReadCommandData), + .nfc_read = + { + .unknown = 0xd0, + .uuid_length = sizeof(NFCReadCommandData::uid), + .uid = tag_uuid, + .tag_type = NFCTagType::Ntag215, + .read_block = GetReadBlockCommand(NFCPages::Block3), + }, + .crc = {}, + }; + + std::array<u8, sizeof(NFCRequestState)> request_data{}; + memcpy(request_data.data(), &request, sizeof(NFCRequestState)); + request_data[36] = CalculateMCU_CRC8(request_data.data(), 36); + return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, MCUSubCommand::ReadDeviceMode, request_data, + output); +} + +DriverResult NfcProtocol::SendWriteDataAmiiboRequest(MCUCommandResponse& output, u8 block_id, + bool is_last_packet, + std::span<const u8> data) { + const auto data_size = std::min(data.size(), sizeof(NFCRequestState::raw_data)); + NFCRequestState request{ + .command_argument = NFCCommand::WriteNtag, + .block_id = block_id, + .packet_id = {}, + .packet_flag = + is_last_packet ? MCUPacketFlag::LastCommandPacket : MCUPacketFlag::MorePacketsRemaining, + .data_length = static_cast<u8>(data_size), + .raw_data = {}, + .crc = {}, + }; + memcpy(request.raw_data.data(), data.data(), data_size); + + std::array<u8, sizeof(NFCRequestState)> request_data{}; + memcpy(request_data.data(), &request, sizeof(NFCRequestState)); + request_data[36] = CalculateMCU_CRC8(request_data.data(), 36); + return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, MCUSubCommand::ReadDeviceMode, request_data, + output); +} + +DriverResult NfcProtocol::SendReadDataMifareRequest(MCUCommandResponse& output, u8 block_id, + bool is_last_packet, std::span<const u8> data) { + const auto data_size = std::min(data.size(), sizeof(NFCRequestState::raw_data)); + NFCRequestState request{ + .command_argument = NFCCommand::Mifare, + .block_id = block_id, + .packet_id = {}, + .packet_flag = + is_last_packet ? MCUPacketFlag::LastCommandPacket : MCUPacketFlag::MorePacketsRemaining, + .data_length = static_cast<u8>(data_size), + .raw_data = {}, + .crc = {}, + }; + memcpy(request.raw_data.data(), data.data(), data_size); + + std::array<u8, sizeof(NFCRequestState)> request_data{}; + memcpy(request_data.data(), &request, sizeof(NFCRequestState)); + request_data[36] = CalculateMCU_CRC8(request_data.data(), 36); + return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, MCUSubCommand::ReadDeviceMode, request_data, + output); +} + +std::vector<u8> NfcProtocol::SerializeWritePackage(const NFCWritePackage& package) const { + const std::size_t header_size = + sizeof(NFCWriteCommandData) + sizeof(NFCWritePackage::number_of_chunks); + std::vector<u8> serialized_data(header_size); + std::size_t start_index = 0; + + memcpy(serialized_data.data(), &package, header_size); + start_index += header_size; + + for (const auto& data_chunk : package.data_chunks) { + const std::size_t chunk_size = + sizeof(NFCDataChunk::nfc_page) + sizeof(NFCDataChunk::data_size) + data_chunk.data_size; + + serialized_data.resize(start_index + chunk_size); + memcpy(serialized_data.data() + start_index, &data_chunk, chunk_size); + start_index += chunk_size; + } + + return serialized_data; +} + +std::vector<u8> NfcProtocol::SerializeMifareReadPackage(const MifareReadPackage& package) const { + const std::size_t header_size = sizeof(MifareCommandData); + std::vector<u8> serialized_data(header_size); + std::size_t start_index = 0; + + memcpy(serialized_data.data(), &package, header_size); + start_index += header_size; + + for (const auto& data_chunk : package.data_chunks) { + const std::size_t chunk_size = sizeof(MifareReadChunk); + if (data_chunk.command == MifareCmd::None) { + continue; + } + serialized_data.resize(start_index + chunk_size); + memcpy(serialized_data.data() + start_index, &data_chunk, chunk_size); + start_index += chunk_size; + } + + return serialized_data; +} + +std::vector<u8> NfcProtocol::SerializeMifareWritePackage(const MifareWritePackage& package) const { + const std::size_t header_size = sizeof(MifareCommandData); + std::vector<u8> serialized_data(header_size); + std::size_t start_index = 0; + + memcpy(serialized_data.data(), &package, header_size); + start_index += header_size; + + for (const auto& data_chunk : package.data_chunks) { + const std::size_t chunk_size = sizeof(MifareWriteChunk); + if (data_chunk.command == MifareCmd::None) { + continue; + } + serialized_data.resize(start_index + chunk_size); + memcpy(serialized_data.data() + start_index, &data_chunk, chunk_size); + start_index += chunk_size; + } + + return serialized_data; +} + +NFCWritePackage NfcProtocol::MakeAmiiboWritePackage(const TagUUID& tag_uuid, + std::span<const u8> data) const { + return { + .command_data{ + .unknown = 0xd0, + .uuid_length = sizeof(NFCReadCommandData::uid), + .uid = tag_uuid, + .tag_type = NFCTagType::Ntag215, + .unknown2 = 0x00, + .unknown3 = 0x01, + .unknown4 = 0x04, + .unknown5 = 0xff, + .unknown6 = 0xff, + .unknown7 = 0xff, + .unknown8 = 0xff, + .magic = data[16], + .write_count = static_cast<u16>((data[17] << 8) + data[18]), + .amiibo_version = data[19], + }, + .number_of_chunks = 3, + .data_chunks = + { + MakeAmiiboChunk(0x05, 0x20, data), + MakeAmiiboChunk(0x20, 0xf0, data), + MakeAmiiboChunk(0x5c, 0x98, data), + }, + }; +} + +MifareReadPackage NfcProtocol::MakeMifareReadPackage( + const MifareUUID& tag_uuid, std::span<const MifareReadChunk> read_request) const { + MifareReadPackage package{ + .command_data{ + .unknown1 = 0xd0, + .unknown2 = 0x07, + .number_of_short_bytes = static_cast<u8>( + ((read_request.size() * sizeof(MifareReadChunk)) + sizeof(MifareUUID)) / 2), + .uid = tag_uuid, + }, + .data_chunks = {}, + }; + + for (std::size_t i = 0; i < read_request.size() && i < package.data_chunks.size(); ++i) { + package.data_chunks[i] = read_request[i]; + } + + return package; +} + +MifareWritePackage NfcProtocol::MakeMifareWritePackage( + const MifareUUID& tag_uuid, std::span<const MifareWriteChunk> read_request) const { + MifareWritePackage package{ + .command_data{ + .unknown1 = 0xd0, + .unknown2 = 0x07, + .number_of_short_bytes = static_cast<u8>( + ((read_request.size() * sizeof(MifareReadChunk)) + sizeof(MifareUUID) + 2) / 2), + .uid = tag_uuid, + }, + .data_chunks = {}, + }; + + for (std::size_t i = 0; i < read_request.size() && i < package.data_chunks.size(); ++i) { + package.data_chunks[i] = read_request[i]; + } + + return package; +} + +NFCDataChunk NfcProtocol::MakeAmiiboChunk(u8 page, u8 size, std::span<const u8> data) const { + constexpr u8 NFC_PAGE_SIZE = 4; + + if (static_cast<std::size_t>(page * NFC_PAGE_SIZE) + size >= data.size()) { + return {}; + } + + NFCDataChunk chunk{ + .nfc_page = page, + .data_size = size, + .data = {}, + }; + std::memcpy(chunk.data.data(), data.data() + (page * NFC_PAGE_SIZE), size); + return chunk; +} + +NFCReadBlockCommand NfcProtocol::GetReadBlockCommand(NFCPages pages) const { + switch (pages) { + case NFCPages::Block0: + return { + .block_count = 1, + }; + case NFCPages::Block3: + return { + .block_count = 1, + .blocks = + { + NFCReadBlock{0x03, 0x03}, + }, + }; + case NFCPages::Block45: + return { + .block_count = 1, + .blocks = + { + NFCReadBlock{0x00, 0x2C}, + }, + }; + case NFCPages::Block135: + return { + .block_count = 3, + .blocks = + { + NFCReadBlock{0x00, 0x3b}, + {0x3c, 0x77}, + {0x78, 0x86}, + }, + }; + case NFCPages::Block231: + return { + .block_count = 4, + .blocks = + { + NFCReadBlock{0x00, 0x3b}, + {0x3c, 0x77}, + {0x78, 0x83}, + {0xb4, 0xe6}, + }, + }; + default: + return {}; + }; +} + +TagUUID NfcProtocol::GetTagUUID(std::span<const u8> data) const { + if (data.size() < 10) { + return {}; + } + + // crc byte 3 is omitted in this operation + return { + data[0], data[1], data[2], data[4], data[5], data[6], data[7], + }; +} + +bool NfcProtocol::IsEnabled() const { + return is_enabled; +} + +bool NfcProtocol::IsPolling() const { + return is_polling; +} + +} // namespace InputCommon::Joycon |