yuzu/src/input_common/helpers/joycon_protocol/nfc.cpp

992 lines
35 KiB
C++

// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "common/input.h"
#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)) {}
Common::Input::DriverResult NfcProtocol::EnableNfc() {
LOG_INFO(Input, "Enable NFC");
ScopedSetBlocking sb(this);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
if (result == Common::Input::DriverResult::Success) {
result = SetReportMode(ReportMode::NFC_IR_MODE_60HZ);
}
if (result == Common::Input::DriverResult::Success) {
result = EnableMCU(true);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitSetMCUMode(ReportMode::NFC_IR_MODE_60HZ, MCUMode::Standby);
}
if (result == Common::Input::DriverResult::Success) {
const MCUConfig config{
.command = MCUCommand::ConfigureMCU,
.sub_command = MCUSubCommand::SetMCUMode,
.mode = MCUMode::NFC,
.crc = {},
};
result = ConfigureMCU(config);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitSetMCUMode(ReportMode::NFC_IR_MODE_60HZ, MCUMode::NFC);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::Ready);
}
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStopPollingRequest(output);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::Ready);
}
if (result == Common::Input::DriverResult::Success) {
is_enabled = true;
}
return result;
}
Common::Input::DriverResult NfcProtocol::DisableNfc() {
LOG_DEBUG(Input, "Disable NFC");
ScopedSetBlocking sb(this);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
if (result == Common::Input::DriverResult::Success) {
result = EnableMCU(false);
}
is_enabled = false;
is_polling = false;
return result;
}
Common::Input::DriverResult NfcProtocol::StartNFCPollingMode() {
LOG_DEBUG(Input, "Start NFC polling Mode");
ScopedSetBlocking sb(this);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStartPollingRequest(output);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::Polling);
}
if (result == Common::Input::DriverResult::Success) {
is_polling = true;
}
return result;
}
Common::Input::DriverResult NfcProtocol::StopNFCPollingMode() {
LOG_DEBUG(Input, "Stop NFC polling Mode");
ScopedSetBlocking sb(this);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStopPollingRequest(output);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::WriteReady);
}
if (result == Common::Input::DriverResult::Success) {
is_polling = false;
}
return result;
}
Common::Input::DriverResult NfcProtocol::GetTagInfo(Joycon::TagInfo& tag_info) {
if (update_counter++ < AMIIBO_UPDATE_DELAY) {
return Common::Input::DriverResult::Delayed;
}
update_counter = 0;
LOG_DEBUG(Input, "Scan for amiibos");
ScopedSetBlocking sb(this);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
TagFoundData tag_data{};
if (result == Common::Input::DriverResult::Success) {
result = IsTagInRange(tag_data);
}
if (result == Common::Input::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;
}
Common::Input::DriverResult NfcProtocol::ReadAmiibo(std::vector<u8>& data) {
LOG_DEBUG(Input, "Scan for amiibos");
ScopedSetBlocking sb(this);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
TagFoundData tag_data{};
if (result == Common::Input::DriverResult::Success) {
result = IsTagInRange(tag_data, 7);
}
if (result == Common::Input::DriverResult::Success) {
result = GetAmiiboData(data);
}
return result;
}
Common::Input::DriverResult NfcProtocol::WriteAmiibo(std::span<const u8> data) {
LOG_DEBUG(Input, "Write amiibo");
ScopedSetBlocking sb(this);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
TagUUID tag_uuid = GetTagUUID(data);
TagFoundData tag_data{};
if (result == Common::Input::DriverResult::Success) {
result = IsTagInRange(tag_data, 7);
}
if (result == Common::Input::DriverResult::Success) {
if (tag_data.uuid != tag_uuid) {
result = Common::Input::DriverResult::InvalidParameters;
}
}
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStopPollingRequest(output);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::Ready);
}
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStartPollingRequest(output, true);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::WriteReady);
}
if (result == Common::Input::DriverResult::Success) {
result = WriteAmiiboData(tag_uuid, data);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::WriteDone);
}
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStopPollingRequest(output);
}
return result;
}
Common::Input::DriverResult NfcProtocol::ReadMifare(std::span<const MifareReadChunk> read_request,
std::span<MifareReadData> out_data) {
LOG_DEBUG(Input, "Read mifare");
ScopedSetBlocking sb(this);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
TagFoundData tag_data{};
MifareUUID tag_uuid{};
if (result == Common::Input::DriverResult::Success) {
result = IsTagInRange(tag_data, 7);
}
if (result == Common::Input::DriverResult::Success) {
memcpy(tag_uuid.data(), tag_data.uuid.data(), sizeof(MifareUUID));
result = GetMifareData(tag_uuid, read_request, out_data);
}
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStopPollingRequest(output);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::Ready);
}
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStartPollingRequest(output, true);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::WriteReady);
}
return result;
}
Common::Input::DriverResult NfcProtocol::WriteMifare(
std::span<const MifareWriteChunk> write_request) {
LOG_DEBUG(Input, "Write mifare");
ScopedSetBlocking sb(this);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
TagFoundData tag_data{};
MifareUUID tag_uuid{};
if (result == Common::Input::DriverResult::Success) {
result = IsTagInRange(tag_data, 7);
}
if (result == Common::Input::DriverResult::Success) {
memcpy(tag_uuid.data(), tag_data.uuid.data(), sizeof(MifareUUID));
result = WriteMifareData(tag_uuid, write_request);
}
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStopPollingRequest(output);
}
if (result == Common::Input::DriverResult::Success) {
result = WaitUntilNfcIs(NFCStatus::Ready);
}
if (result == Common::Input::DriverResult::Success) {
MCUCommandResponse output{};
result = SendStartPollingRequest(output, true);
}
if (result == Common::Input::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);
Common::Input::DriverResult result{Common::Input::DriverResult::Success};
TagFoundData tag_data{};
if (result == Common::Input::DriverResult::Success) {
result = IsTagInRange(tag_data, 7);
}
return result == Common::Input::DriverResult::Success;
}
Common::Input::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 != Common::Input::DriverResult::Success) {
return result;
}
if (tries++ > timeout_limit) {
return Common::Input::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 Common::Input::DriverResult::Success;
}
Common::Input::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 != Common::Input::DriverResult::Success) {
return result;
}
if (tries++ > timeout_limit) {
return Common::Input::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 Common::Input::DriverResult::Success;
}
Common::Input::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 != Common::Input::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 != Common::Input::DriverResult::Success) {
return result;
}
if ((output.mcu_report == MCUReport::NFCReadData ||
output.mcu_report == MCUReport::NFCState) &&
nfc_status == NFCStatus::TagLost) {
return Common::Input::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 Common::Input::DriverResult::Success;
}
}
return Common::Input::DriverResult::Timeout;
}
Common::Input::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 != Common::Input::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 != Common::Input::DriverResult::Success) {
return result;
}
if ((output.mcu_report == MCUReport::NFCReadData ||
output.mcu_report == MCUReport::NFCState) &&
nfc_status == NFCStatus::TagLost) {
return Common::Input::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 Common::Input::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;
}
Common::Input::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);
Common::Input::DriverResult result = Common::Input::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 Common::Input::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 != Common::Input::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 != Common::Input::DriverResult::Success) {
return result;
}
if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::TagLost) {
return Common::Input::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;
}
Common::Input::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);
Common::Input::DriverResult result = Common::Input::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 Common::Input::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 != Common::Input::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 != Common::Input::DriverResult::Success) {
return result;
}
if (output.mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::TagLost) {
return Common::Input::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;
}
Common::Input::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);
}
Common::Input::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);
}
Common::Input::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);
}
Common::Input::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);
}
Common::Input::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);
}
Common::Input::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);
}
Common::Input::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