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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <array>
#include <atomic>
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/k_readable_event.h"
#include "core/hle/kernel/k_thread.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/writable_event.h"
#include "core/hle/lock.h"
#include "core/hle/service/nfp/nfp.h"
#include "core/hle/service/nfp/nfp_user.h"
namespace Service::NFP {
namespace ErrCodes {
constexpr ResultCode ERR_NO_APPLICATION_AREA(ErrorModule::NFP, 152);
} // namespace ErrCodes
Module::Interface::Interface(std::shared_ptr<Module> module_, Core::System& system_,
const char* name)
: ServiceFramework{system_, name}, module{std::move(module_)} {
auto& kernel = system.Kernel();
nfc_tag_load = Kernel::WritableEvent::CreateEventPair(kernel, "IUser:NFCTagDetected");
}
Module::Interface::~Interface() = default;
class IUser final : public ServiceFramework<IUser> {
public:
explicit IUser(Module::Interface& nfp_interface_, Core::System& system_)
: ServiceFramework{system_, "NFP::IUser"}, nfp_interface{nfp_interface_} {
static const FunctionInfo functions[] = {
{0, &IUser::Initialize, "Initialize"},
{1, &IUser::Finalize, "Finalize"},
{2, &IUser::ListDevices, "ListDevices"},
{3, &IUser::StartDetection, "StartDetection"},
{4, &IUser::StopDetection, "StopDetection"},
{5, &IUser::Mount, "Mount"},
{6, &IUser::Unmount, "Unmount"},
{7, &IUser::OpenApplicationArea, "OpenApplicationArea"},
{8, &IUser::GetApplicationArea, "GetApplicationArea"},
{9, nullptr, "SetApplicationArea"},
{10, nullptr, "Flush"},
{11, nullptr, "Restore"},
{12, nullptr, "CreateApplicationArea"},
{13, &IUser::GetTagInfo, "GetTagInfo"},
{14, &IUser::GetRegisterInfo, "GetRegisterInfo"},
{15, &IUser::GetCommonInfo, "GetCommonInfo"},
{16, &IUser::GetModelInfo, "GetModelInfo"},
{17, &IUser::AttachActivateEvent, "AttachActivateEvent"},
{18, &IUser::AttachDeactivateEvent, "AttachDeactivateEvent"},
{19, &IUser::GetState, "GetState"},
{20, &IUser::GetDeviceState, "GetDeviceState"},
{21, &IUser::GetNpadId, "GetNpadId"},
{22, &IUser::GetApplicationAreaSize, "GetApplicationAreaSize"},
{23, &IUser::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
{24, nullptr, "RecreateApplicationArea"},
};
RegisterHandlers(functions);
auto& kernel = system.Kernel();
deactivate_event = Kernel::WritableEvent::CreateEventPair(kernel, "IUser:DeactivateEvent");
availability_change_event =
Kernel::WritableEvent::CreateEventPair(kernel, "IUser:AvailabilityChangeEvent");
}
private:
struct TagInfo {
std::array<u8, 10> uuid;
u8 uuid_length; // TODO(ogniK): Figure out if this is actual the uuid length or does it
// mean something else
std::array<u8, 0x15> padding_1;
u32_le protocol;
u32_le tag_type;
std::array<u8, 0x2c> padding_2;
};
static_assert(sizeof(TagInfo) == 0x54, "TagInfo is an invalid size");
enum class State : u32 {
NonInitialized = 0,
Initialized = 1,
};
enum class DeviceState : u32 {
Initialized = 0,
SearchingForTag = 1,
TagFound = 2,
TagRemoved = 3,
TagNearby = 4,
Unknown5 = 5,
Finalized = 6
};
struct CommonInfo {
u16_be last_write_year;
u8 last_write_month;
u8 last_write_day;
u16_be write_counter;
u16_be version;
u32_be application_area_size;
INSERT_PADDING_BYTES(0x34);
};
static_assert(sizeof(CommonInfo) == 0x40, "CommonInfo is an invalid size");
void Initialize(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFC, "called");
IPC::ResponseBuilder rb{ctx, 2, 0};
rb.Push(RESULT_SUCCESS);
state = State::Initialized;
}
void GetState(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFC, "called");
IPC::ResponseBuilder rb{ctx, 3, 0};
rb.Push(RESULT_SUCCESS);
rb.PushRaw<u32>(static_cast<u32>(state));
}
void ListDevices(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u32 array_size = rp.Pop<u32>();
LOG_DEBUG(Service_NFP, "called, array_size={}", array_size);
ctx.WriteBuffer(device_handle);
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(1);
}
void GetNpadId(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u64 dev_handle = rp.Pop<u64>();
LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(npad_id);
}
void AttachActivateEvent(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u64 dev_handle = rp.Pop<u64>();
LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
IPC::ResponseBuilder rb{ctx, 2, 1};
rb.Push(RESULT_SUCCESS);
rb.PushCopyObjects(nfp_interface.GetNFCEvent());
has_attached_handle = true;
}
void AttachDeactivateEvent(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u64 dev_handle = rp.Pop<u64>();
LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
IPC::ResponseBuilder rb{ctx, 2, 1};
rb.Push(RESULT_SUCCESS);
rb.PushCopyObjects(deactivate_event.readable);
}
void StopDetection(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "called");
switch (device_state) {
case DeviceState::TagFound:
case DeviceState::TagNearby:
deactivate_event.writable->Signal();
device_state = DeviceState::Initialized;
break;
case DeviceState::SearchingForTag:
case DeviceState::TagRemoved:
device_state = DeviceState::Initialized;
break;
default:
break;
}
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void GetDeviceState(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "called");
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(static_cast<u32>(device_state));
}
void StartDetection(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "called");
if (device_state == DeviceState::Initialized || device_state == DeviceState::TagRemoved) {
device_state = DeviceState::SearchingForTag;
}
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void GetTagInfo(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "called");
IPC::ResponseBuilder rb{ctx, 2};
const auto& amiibo = nfp_interface.GetAmiiboBuffer();
const TagInfo tag_info{
.uuid = amiibo.uuid,
.uuid_length = static_cast<u8>(tag_info.uuid.size()),
.padding_1 = {},
.protocol = 1, // TODO(ogniK): Figure out actual values
.tag_type = 2,
.padding_2 = {},
};
ctx.WriteBuffer(tag_info);
rb.Push(RESULT_SUCCESS);
}
void Mount(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "called");
device_state = DeviceState::TagNearby;
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void GetModelInfo(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "called");
IPC::ResponseBuilder rb{ctx, 2};
const auto& amiibo = nfp_interface.GetAmiiboBuffer();
ctx.WriteBuffer(amiibo.model_info);
rb.Push(RESULT_SUCCESS);
}
void Unmount(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "called");
device_state = DeviceState::TagFound;
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void Finalize(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "called");
device_state = DeviceState::Finalized;
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_NFP, "(STUBBED) called");
IPC::ResponseBuilder rb{ctx, 2, 1};
rb.Push(RESULT_SUCCESS);
rb.PushCopyObjects(availability_change_event.readable);
}
void GetRegisterInfo(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_NFP, "(STUBBED) called");
// TODO(ogniK): Pull Mii and owner data from amiibo
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void GetCommonInfo(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_NFP, "(STUBBED) called");
// TODO(ogniK): Pull common information from amiibo
CommonInfo common_info{};
common_info.application_area_size = 0;
ctx.WriteBuffer(common_info);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
void OpenApplicationArea(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_NFP, "(STUBBED) called");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::ERR_NO_APPLICATION_AREA);
}
void GetApplicationAreaSize(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_NFP, "(STUBBED) called");
// We don't need to worry about this since we can just open the file
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.PushRaw<u32>(0); // This is from the GetCommonInfo stub
}
void GetApplicationArea(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_NFP, "(STUBBED) called");
// TODO(ogniK): Pull application area from amiibo
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.PushRaw<u32>(0); // This is from the GetCommonInfo stub
}
bool has_attached_handle{};
const u64 device_handle{0}; // Npad device 1
const u32 npad_id{0}; // Player 1 controller
State state{State::NonInitialized};
DeviceState device_state{DeviceState::Initialized};
Kernel::EventPair deactivate_event;
Kernel::EventPair availability_change_event;
const Module::Interface& nfp_interface;
};
void Module::Interface::CreateUserInterface(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "called");
IPC::ResponseBuilder rb{ctx, 2, 0, 1};
rb.Push(RESULT_SUCCESS);
rb.PushIpcInterface<IUser>(*this, system);
}
bool Module::Interface::LoadAmiibo(const std::vector<u8>& buffer) {
std::lock_guard lock{HLE::g_hle_lock};
if (buffer.size() < sizeof(AmiiboFile)) {
return false;
}
std::memcpy(&amiibo, buffer.data(), sizeof(amiibo));
nfc_tag_load.writable->Signal();
return true;
}
const std::shared_ptr<Kernel::KReadableEvent>& Module::Interface::GetNFCEvent() const {
return nfc_tag_load.readable;
}
const Module::Interface::AmiiboFile& Module::Interface::GetAmiiboBuffer() const {
return amiibo;
}
void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system) {
auto module = std::make_shared<Module>();
std::make_shared<NFP_User>(module, system)->InstallAsService(service_manager);
}
} // namespace Service::NFP
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