diff options
Diffstat (limited to 'src/input_common/helpers/joycon_protocol/nfc.cpp')
-rw-r--r-- | src/input_common/helpers/joycon_protocol/nfc.cpp | 397 |
1 files changed, 298 insertions, 99 deletions
diff --git a/src/input_common/helpers/joycon_protocol/nfc.cpp b/src/input_common/helpers/joycon_protocol/nfc.cpp index 14818ae33..3b7a628e5 100644 --- a/src/input_common/helpers/joycon_protocol/nfc.cpp +++ b/src/input_common/helpers/joycon_protocol/nfc.cpp @@ -34,6 +34,12 @@ DriverResult NfcProtocol::EnableNfc() { result = ConfigureMCU(config); } + if (result == DriverResult::Success) { + result = WaitSetMCUMode(ReportMode::NFC_IR_MODE_60HZ, MCUMode::NFC); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::Ready); + } return result; } @@ -56,13 +62,20 @@ DriverResult NfcProtocol::StartNFCPollingMode() { LOG_DEBUG(Input, "Start NFC pooling Mode"); ScopedSetBlocking sb(this); DriverResult result{DriverResult::Success}; - TagFoundData tag_data{}; if (result == DriverResult::Success) { - result = WaitSetMCUMode(ReportMode::NFC_IR_MODE_60HZ, MCUMode::NFC); + MCUCommandResponse output{}; + result = SendStopPollingRequest(output); + } + if (result == DriverResult::Success) { + result = WaitUntilNfcIs(NFCStatus::Ready); + } + if (result == DriverResult::Success) { + MCUCommandResponse output{}; + result = SendStartPollingRequest(output); } if (result == DriverResult::Success) { - result = WaitUntilNfcIsReady(); + result = WaitUntilNfcIs(NFCStatus::Polling); } if (result == DriverResult::Success) { is_enabled = true; @@ -77,49 +90,94 @@ DriverResult NfcProtocol::ScanAmiibo(std::vector<u8>& data) { } update_counter = 0; - LOG_DEBUG(Input, "Start NFC pooling Mode"); + 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) { + 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); + 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 = StartPolling(tag_data); + result = IsTagInRange(tag_data, 7); } if (result == DriverResult::Success) { - result = ReadTag(tag_data); + if (tag_data.uuid != tag_uuid) { + result = DriverResult::InvalidParameters; + } } if (result == DriverResult::Success) { - result = WaitUntilNfcIsReady(); + MCUCommandResponse output{}; + result = SendStopPollingRequest(output); } if (result == DriverResult::Success) { - result = StartPolling(tag_data, 7); + result = WaitUntilNfcIs(NFCStatus::Ready); } if (result == DriverResult::Success) { - result = GetAmiiboData(data); + 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; } 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 = StartPolling(tag_data); + result = IsTagInRange(tag_data, 7); } return result == DriverResult::Success; } -DriverResult NfcProtocol::WaitUntilNfcIsReady() { +DriverResult NfcProtocol::WaitUntilNfcIs(NFCStatus status) { constexpr std::size_t timeout_limit = 10; MCUCommandResponse output{}; std::size_t tries = 0; do { - auto result = SendStartWaitingRecieveRequest(output); + auto result = SendNextPackageRequest(output, {}); if (result != DriverResult::Success) { return result; @@ -129,18 +187,17 @@ DriverResult NfcProtocol::WaitUntilNfcIsReady() { } } 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] != 0x00); + output.mcu_data[5] != 0x31 || output.mcu_data[6] != static_cast<u8>(status)); return DriverResult::Success; } -DriverResult NfcProtocol::StartPolling(TagFoundData& data, std::size_t timeout_limit) { - LOG_DEBUG(Input, "Start Polling for tag"); +DriverResult NfcProtocol::IsTagInRange(TagFoundData& data, std::size_t timeout_limit) { MCUCommandResponse output{}; std::size_t tries = 0; do { - const auto result = SendStartPollingRequest(output); + const auto result = SendNextPackageRequest(output, {}); if (result != DriverResult::Success) { return result; } @@ -149,32 +206,31 @@ DriverResult NfcProtocol::StartPolling(TagFoundData& data, std::size_t timeout_l } } 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] != 0x09 && output.mcu_data[6] != 0x04)); data.type = output.mcu_data[12]; - data.uuid.resize(output.mcu_data[14]); + 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::ReadTag(const TagFoundData& data) { - constexpr std::size_t timeout_limit = 10; +DriverResult NfcProtocol::GetAmiiboData(std::vector<u8>& ntag_data) { + constexpr std::size_t timeout_limit = 60; MCUCommandResponse output{}; std::size_t tries = 0; - std::string uuid_string; - for (auto& content : data.uuid) { - uuid_string += fmt::format(" {:02x}", content); - } + u8 package_index = 0; + std::size_t ntag_buffer_pos = 0; + auto result = SendReadAmiiboRequest(output, NFCPages::Block135); - LOG_INFO(Input, "Tag detected, type={}, uuid={}", data.type, uuid_string); + if (result != DriverResult::Success) { + return result; + } - tries = 0; - NFCPages ntag_pages = NFCPages::Block0; // Read Tag data - while (true) { - auto result = SendReadAmiiboRequest(output, ntag_pages); + while (tries++ < timeout_limit) { + result = SendNextPackageRequest(output, package_index); const auto nfc_status = static_cast<NFCStatus>(output.mcu_data[6]); if (result != DriverResult::Success) { @@ -187,56 +243,51 @@ DriverResult NfcProtocol::ReadTag(const TagFoundData& data) { return DriverResult::ErrorReadingData; } - if (output.mcu_report == MCUReport::NFCReadData && output.mcu_data[1] == 0x07 && - output.mcu_data[2] == 0x01) { - if (data.type != 2) { - continue; - } - switch (output.mcu_data[24]) { - case 0: - ntag_pages = NFCPages::Block135; - break; - case 3: - ntag_pages = NFCPages::Block45; - break; - case 4: - ntag_pages = NFCPages::Block231; - break; - default: - 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) { - // finished - SendStopPollingRequest(output); + LOG_INFO(Input, "Finished reading amiibo"); return DriverResult::Success; } - - // Ignore other state reports - if (output.mcu_report == MCUReport::NFCState) { - continue; - } - - if (tries++ > timeout_limit) { - return DriverResult::Timeout; - } } - return DriverResult::Success; + return DriverResult::Timeout; } -DriverResult NfcProtocol::GetAmiiboData(std::vector<u8>& ntag_data) { - constexpr std::size_t timeout_limit = 10; +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; - NFCPages ntag_pages = NFCPages::Block135; - std::size_t ntag_buffer_pos = 0; - // Read Tag data - while (true) { - auto result = SendReadAmiiboRequest(output, ntag_pages); + 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) { @@ -250,47 +301,59 @@ DriverResult NfcProtocol::GetAmiiboData(std::vector<u8>& ntag_data) { } 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; + break; } + } - // Ignore other state reports - if (output.mcu_report == MCUReport::NFCState) { - continue; + // 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; } - if (tries++ > timeout_limit) { - return DriverResult::Timeout; + // 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 DriverResult::Success; + return result; } -DriverResult NfcProtocol::SendStartPollingRequest(MCUCommandResponse& output) { +DriverResult NfcProtocol::SendStartPollingRequest(MCUCommandResponse& output, + bool is_second_attempt) { NFCRequestState request{ - .command_argument = NFCReadCommand::StartPolling, - .packet_id = 0x0, + .command_argument = NFCCommand::StartPolling, + .block_id = {}, + .packet_id = {}, .packet_flag = MCUPacketFlag::LastCommandPacket, .data_length = sizeof(NFCPollingCommandData), .nfc_polling = { - .enable_mifare = 0x01, - .unknown_1 = 0x00, - .unknown_2 = 0x00, + .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, }, @@ -306,10 +369,11 @@ DriverResult NfcProtocol::SendStartPollingRequest(MCUCommandResponse& output) { DriverResult NfcProtocol::SendStopPollingRequest(MCUCommandResponse& output) { NFCRequestState request{ - .command_argument = NFCReadCommand::StopPolling, - .packet_id = 0x0, + .command_argument = NFCCommand::StopPolling, + .block_id = {}, + .packet_id = {}, .packet_flag = MCUPacketFlag::LastCommandPacket, - .data_length = 0, + .data_length = {}, .raw_data = {}, .crc = {}, }; @@ -321,12 +385,13 @@ DriverResult NfcProtocol::SendStopPollingRequest(MCUCommandResponse& output) { output); } -DriverResult NfcProtocol::SendStartWaitingRecieveRequest(MCUCommandResponse& output) { +DriverResult NfcProtocol::SendNextPackageRequest(MCUCommandResponse& output, u8 packet_id) { NFCRequestState request{ - .command_argument = NFCReadCommand::StartWaitingRecieve, - .packet_id = 0x0, + .command_argument = NFCCommand::StartWaitingRecieve, + .block_id = {}, + .packet_id = packet_id, .packet_flag = MCUPacketFlag::LastCommandPacket, - .data_length = 0, + .data_length = {}, .raw_data = {}, .crc = {}, }; @@ -340,17 +405,17 @@ DriverResult NfcProtocol::SendStartWaitingRecieveRequest(MCUCommandResponse& out DriverResult NfcProtocol::SendReadAmiiboRequest(MCUCommandResponse& output, NFCPages ntag_pages) { NFCRequestState request{ - .command_argument = NFCReadCommand::Ntag, - .packet_id = 0x0, + .command_argument = NFCCommand::ReadNtag, + .block_id = {}, + .packet_id = {}, .packet_flag = MCUPacketFlag::LastCommandPacket, .data_length = sizeof(NFCReadCommandData), .nfc_read = { .unknown = 0xd0, - .uuid_length = 0x07, - .unknown_2 = 0x00, + .uuid_length = sizeof(NFCReadCommandData::uid), .uid = {}, - .tag_type = NFCTagType::AllTags, + .tag_type = NFCTagType::Ntag215, .read_block = GetReadBlockCommand(ntag_pages), }, .crc = {}, @@ -363,12 +428,135 @@ DriverResult NfcProtocol::SendReadAmiiboRequest(MCUCommandResponse& output, NFCP 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); +} + +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; +} + +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), + }, + }; +} + +NFCDataChunk NfcProtocol::MakeAmiiboChunk(u8 page, u8 size, std::span<const u8> data) const { + constexpr u8 PAGE_SIZE = 4; + + if (static_cast<std::size_t>(page * PAGE_SIZE) + size >= data.size()) { + return {}; + } + + NFCDataChunk chunk{ + .nfc_page = page, + .data_size = size, + .data = {}, + }; + std::memcpy(chunk.data.data(), data.data() + (page * 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, @@ -403,6 +591,17 @@ NFCReadBlockCommand NfcProtocol::GetReadBlockCommand(NFCPages pages) const { }; } +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; } |