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-rw-r--r--src/input_common/helpers/joycon_protocol/nfc.cpp400
1 files changed, 400 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..5c0f71722
--- /dev/null
+++ b/src/input_common/helpers/joycon_protocol/nfc.cpp
@@ -0,0 +1,400 @@
+// 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);
+ }
+
+ 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;
+
+ return result;
+}
+
+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);
+ }
+ if (result == DriverResult::Success) {
+ result = WaitUntilNfcIsReady();
+ }
+ if (result == DriverResult::Success) {
+ is_enabled = true;
+ }
+
+ return result;
+}
+
+DriverResult NfcProtocol::ScanAmiibo(std::vector<u8>& data) {
+ LOG_DEBUG(Input, "Start NFC pooling Mode");
+ ScopedSetBlocking sb(this);
+ DriverResult result{DriverResult::Success};
+ TagFoundData tag_data{};
+
+ if (result == DriverResult::Success) {
+ result = StartPolling(tag_data);
+ }
+ if (result == DriverResult::Success) {
+ result = ReadTag(tag_data);
+ }
+ if (result == DriverResult::Success) {
+ result = WaitUntilNfcIsReady();
+ }
+ if (result == DriverResult::Success) {
+ result = StartPolling(tag_data);
+ }
+ if (result == DriverResult::Success) {
+ result = GetAmiiboData(data);
+ }
+
+ return result;
+}
+
+bool NfcProtocol::HasAmiibo() {
+ ScopedSetBlocking sb(this);
+ DriverResult result{DriverResult::Success};
+ TagFoundData tag_data{};
+
+ if (result == DriverResult::Success) {
+ result = StartPolling(tag_data);
+ }
+
+ return result == DriverResult::Success;
+}
+
+DriverResult NfcProtocol::WaitUntilNfcIsReady() {
+ constexpr std::size_t timeout_limit = 10;
+ std::vector<u8> output;
+ std::size_t tries = 0;
+
+ do {
+ auto result = SendStartWaitingRecieveRequest(output);
+
+ if (result != DriverResult::Success) {
+ return result;
+ }
+ if (tries++ > timeout_limit) {
+ return DriverResult::Timeout;
+ }
+ } while (output[49] != 0x2a || (output[51] << 8) + output[50] != 0x0500 || output[55] != 0x31 ||
+ output[56] != 0x00);
+
+ return DriverResult::Success;
+}
+
+DriverResult NfcProtocol::StartPolling(TagFoundData& data) {
+ LOG_DEBUG(Input, "Start Polling for tag");
+ constexpr std::size_t timeout_limit = 7;
+ std::vector<u8> output;
+ std::size_t tries = 0;
+
+ do {
+ const auto result = SendStartPollingRequest(output);
+ if (result != DriverResult::Success) {
+ return result;
+ }
+ if (tries++ > timeout_limit) {
+ return DriverResult::Timeout;
+ }
+ } while (output[49] != 0x2a || (output[51] << 8) + output[50] != 0x0500 || output[56] != 0x09);
+
+ data.type = output[62];
+ data.uuid.resize(output[64]);
+ memcpy(data.uuid.data(), output.data() + 65, data.uuid.size());
+
+ return DriverResult::Success;
+}
+
+DriverResult NfcProtocol::ReadTag(const TagFoundData& data) {
+ constexpr std::size_t timeout_limit = 10;
+ std::vector<u8> output;
+ std::size_t tries = 0;
+
+ std::string uuid_string;
+ for (auto& content : data.uuid) {
+ uuid_string += fmt::format(" {:02x}", content);
+ }
+
+ LOG_INFO(Input, "Tag detected, type={}, uuid={}", data.type, uuid_string);
+
+ tries = 0;
+ NFCPages ntag_pages = NFCPages::Block0;
+ // Read Tag data
+ while (true) {
+ auto result = SendReadAmiiboRequest(output, ntag_pages);
+ const auto mcu_report = static_cast<MCUReport>(output[49]);
+ const auto nfc_status = static_cast<NFCStatus>(output[56]);
+
+ if (result != DriverResult::Success) {
+ return result;
+ }
+
+ if ((mcu_report == MCUReport::NFCReadData || mcu_report == MCUReport::NFCState) &&
+ nfc_status == NFCStatus::TagLost) {
+ return DriverResult::ErrorReadingData;
+ }
+
+ if (mcu_report == MCUReport::NFCReadData && output[51] == 0x07 && output[52] == 0x01) {
+ if (data.type != 2) {
+ continue;
+ }
+ switch (output[74]) {
+ 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;
+ }
+ continue;
+ }
+
+ if (mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::LastPackage) {
+ // finished
+ SendStopPollingRequest(output);
+ return DriverResult::Success;
+ }
+
+ // Ignore other state reports
+ if (mcu_report == MCUReport::NFCState) {
+ continue;
+ }
+
+ if (tries++ > timeout_limit) {
+ return DriverResult::Timeout;
+ }
+ }
+
+ return DriverResult::Success;
+}
+
+DriverResult NfcProtocol::GetAmiiboData(std::vector<u8>& ntag_data) {
+ constexpr std::size_t timeout_limit = 10;
+ std::vector<u8> output;
+ std::size_t tries = 0;
+
+ NFCPages ntag_pages = NFCPages::Block135;
+ std::size_t ntag_buffer_pos = 0;
+ // Read Tag data
+ while (true) {
+ auto result = SendReadAmiiboRequest(output, ntag_pages);
+ const auto mcu_report = static_cast<MCUReport>(output[49]);
+ const auto nfc_status = static_cast<NFCStatus>(output[56]);
+
+ if (result != DriverResult::Success) {
+ return result;
+ }
+
+ if ((mcu_report == MCUReport::NFCReadData || mcu_report == MCUReport::NFCState) &&
+ nfc_status == NFCStatus::TagLost) {
+ return DriverResult::ErrorReadingData;
+ }
+
+ if (mcu_report == MCUReport::NFCReadData && output[51] == 0x07) {
+ std::size_t payload_size = (output[54] << 8 | output[55]) & 0x7FF;
+ if (output[52] == 0x01) {
+ memcpy(ntag_data.data() + ntag_buffer_pos, output.data() + 116, payload_size - 60);
+ ntag_buffer_pos += payload_size - 60;
+ } else {
+ memcpy(ntag_data.data() + ntag_buffer_pos, output.data() + 56, payload_size);
+ }
+ continue;
+ }
+
+ if (mcu_report == MCUReport::NFCState && nfc_status == NFCStatus::LastPackage) {
+ LOG_INFO(Input, "Finished reading amiibo");
+ return DriverResult::Success;
+ }
+
+ // Ignore other state reports
+ if (mcu_report == MCUReport::NFCState) {
+ continue;
+ }
+
+ if (tries++ > timeout_limit) {
+ return DriverResult::Timeout;
+ }
+ }
+
+ return DriverResult::Success;
+}
+
+DriverResult NfcProtocol::SendStartPollingRequest(std::vector<u8>& output) {
+ NFCRequestState request{
+ .sub_command = MCUSubCommand::ReadDeviceMode,
+ .command_argument = NFCReadCommand::StartPolling,
+ .packet_id = 0x0,
+ .packet_flag = MCUPacketFlag::LastCommandPacket,
+ .data_length = sizeof(NFCPollingCommandData),
+ .nfc_polling =
+ {
+ .enable_mifare = 0x01,
+ .unknown_1 = 0x00,
+ .unknown_2 = 0x00,
+ .unknown_3 = 0x2c,
+ .unknown_4 = 0x01,
+ },
+ .crc = {},
+ };
+
+ std::array<u8, sizeof(NFCRequestState)> request_data{};
+ memcpy(request_data.data(), &request, sizeof(NFCRequestState));
+ request_data[37] = CalculateMCU_CRC8(request_data.data() + 1, 36);
+ return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, SubCommand::STATE, request_data, output);
+}
+
+DriverResult NfcProtocol::SendStopPollingRequest(std::vector<u8>& output) {
+ NFCRequestState request{
+ .sub_command = MCUSubCommand::ReadDeviceMode,
+ .command_argument = NFCReadCommand::StopPolling,
+ .packet_id = 0x0,
+ .packet_flag = MCUPacketFlag::LastCommandPacket,
+ .data_length = 0,
+ .raw_data = {},
+ .crc = {},
+ };
+
+ std::array<u8, sizeof(NFCRequestState)> request_data{};
+ memcpy(request_data.data(), &request, sizeof(NFCRequestState));
+ request_data[37] = CalculateMCU_CRC8(request_data.data() + 1, 36);
+ return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, SubCommand::STATE, request_data, output);
+}
+
+DriverResult NfcProtocol::SendStartWaitingRecieveRequest(std::vector<u8>& output) {
+ NFCRequestState request{
+ .sub_command = MCUSubCommand::ReadDeviceMode,
+ .command_argument = NFCReadCommand::StartWaitingRecieve,
+ .packet_id = 0x0,
+ .packet_flag = MCUPacketFlag::LastCommandPacket,
+ .data_length = 0,
+ .raw_data = {},
+ .crc = {},
+ };
+
+ std::vector<u8> request_data(sizeof(NFCRequestState));
+ memcpy(request_data.data(), &request, sizeof(NFCRequestState));
+ request_data[37] = CalculateMCU_CRC8(request_data.data() + 1, 36);
+ return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, SubCommand::STATE, request_data, output);
+}
+
+DriverResult NfcProtocol::SendReadAmiiboRequest(std::vector<u8>& output, NFCPages ntag_pages) {
+ NFCRequestState request{
+ .sub_command = MCUSubCommand::ReadDeviceMode,
+ .command_argument = NFCReadCommand::Ntag,
+ .packet_id = 0x0,
+ .packet_flag = MCUPacketFlag::LastCommandPacket,
+ .data_length = sizeof(NFCReadCommandData),
+ .nfc_read =
+ {
+ .unknown = 0xd0,
+ .uuid_length = 0x07,
+ .unknown_2 = 0x00,
+ .uid = {},
+ .tag_type = NFCTagType::AllTags,
+ .read_block = GetReadBlockCommand(ntag_pages),
+ },
+ .crc = {},
+ };
+
+ std::array<u8, sizeof(NFCRequestState)> request_data{};
+ memcpy(request_data.data(), &request, sizeof(NFCRequestState));
+ request_data[37] = CalculateMCU_CRC8(request_data.data() + 1, 36);
+ return SendMCUData(ReportMode::NFC_IR_MODE_60HZ, SubCommand::STATE, request_data, output);
+}
+
+NFCReadBlockCommand NfcProtocol::GetReadBlockCommand(NFCPages pages) const {
+ switch (pages) {
+ case NFCPages::Block0:
+ return {
+ .block_count = 1,
+ };
+ 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 {};
+ };
+}
+
+bool NfcProtocol::IsEnabled() const {
+ return is_enabled;
+}
+
+} // namespace InputCommon::Joycon