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suyu/src/core/hle/service/apt/apt.cpp
Subv 2a6ebadf66 HLE/APT: Initial HLE support for applets. 
Currently only the SWKBD is emulated, and there's currently no way to ask the user for input, so it always returns "Subv" as the text.
2015-07-11 21:47:22 -05:00

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// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/common_paths.h"
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/hle/applets/applet.h"
#include "core/hle/service/service.h"
#include "core/hle/service/apt/apt.h"
#include "core/hle/service/apt/apt_a.h"
#include "core/hle/service/apt/apt_s.h"
#include "core/hle/service/apt/apt_u.h"
#include "core/hle/hle.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/mutex.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/kernel/thread.h"
namespace Service {
namespace APT {
// Address used for shared font (as observed on HW)
// TODO(bunnei): This is the hard-coded address where we currently dump the shared font from via
// https://github.com/citra-emu/3dsutils. This is technically a hack, and will not work at any
// address other than 0x18000000 due to internal pointers in the shared font dump that would need to
// be relocated. This might be fixed by dumping the shared font @ address 0x00000000 and then
// correctly mapping it in Citra, however we still do not understand how the mapping is determined.
static const VAddr SHARED_FONT_VADDR = 0x18000000;
/// Handle to shared memory region designated to for shared system font
static Kernel::SharedPtr<Kernel::SharedMemory> shared_font_mem;
static Kernel::SharedPtr<Kernel::Mutex> lock;
static Kernel::SharedPtr<Kernel::Event> notification_event; ///< APT notification event
static Kernel::SharedPtr<Kernel::Event> parameter_event; ///< APT parameter event
static std::vector<u8> shared_font;
static u32 cpu_percent; ///< CPU time available to the running application
/// Parameter data to be returned in the next call to Glance/ReceiveParameter
static MessageParameter next_parameter;
void SendParameter(MessageParameter const& parameter) {
next_parameter = parameter;
// Signal the event to let the application know that a new parameter is ready to be read
parameter_event->Signal();
}
void Initialize(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
u32 flags = cmd_buff[2];
cmd_buff[2] = IPC::MoveHandleDesc(2);
cmd_buff[3] = Kernel::g_handle_table.Create(notification_event).MoveFrom();
cmd_buff[4] = Kernel::g_handle_table.Create(parameter_event).MoveFrom();
// TODO(bunnei): Check if these events are cleared every time Initialize is called.
notification_event->Clear();
parameter_event->Clear();
ASSERT_MSG((nullptr != lock), "Cannot initialize without lock");
lock->Release();
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "called app_id=0x%08X, flags=0x%08X", app_id, flags);
}
void GetSharedFont(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
if (!shared_font.empty()) {
// TODO(bunnei): This function shouldn't copy the shared font every time it's called.
// Instead, it should probably map the shared font as RO memory. We don't currently have
// an easy way to do this, but the copy should be sufficient for now.
memcpy(Memory::GetPointer(SHARED_FONT_VADDR), shared_font.data(), shared_font.size());
cmd_buff[0] = IPC::MakeHeader(0x44, 2, 2);
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = SHARED_FONT_VADDR;
cmd_buff[3] = IPC::MoveHandleDesc();
cmd_buff[4] = Kernel::g_handle_table.Create(shared_font_mem).MoveFrom();
} else {
cmd_buff[0] = IPC::MakeHeader(0x44, 1, 0);
cmd_buff[1] = -1; // Generic error (not really possible to verify this on hardware)
LOG_ERROR(Kernel_SVC, "called, but %s has not been loaded!", SHARED_FONT);
}
}
void NotifyToWait(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) app_id=%u", app_id);
}
void GetLockHandle(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 flags = cmd_buff[1]; // TODO(bunnei): Figure out the purpose of the flag field
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
// Not sure what these parameters are used for, but retail apps check that they are 0 after
// GetLockHandle has been called.
cmd_buff[2] = 0;
cmd_buff[3] = 0;
cmd_buff[4] = 0;
cmd_buff[5] = Kernel::g_handle_table.Create(lock).MoveFrom();
LOG_TRACE(Service_APT, "called handle=0x%08X", cmd_buff[5]);
}
void Enable(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 unk = cmd_buff[1]; // TODO(bunnei): What is this field used for?
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
parameter_event->Signal(); // Let the application know that it has been started
LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X", unk);
}
void GetAppletManInfo(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 unk = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = 0;
cmd_buff[3] = 0;
cmd_buff[4] = static_cast<u32>(AppletId::HomeMenu); // Home menu AppID
cmd_buff[5] = static_cast<u32>(AppletId::Application); // TODO(purpasmart96): Do this correctly
LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X", unk);
}
void IsRegistered(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
/// TODO(Subv): It is currently unknown what this value (0x400) means,
/// but i believe it is used as a global "LibraryApplet" id, to verify if there's
/// any LibApplet currently running. This is not verified.
if (app_id != 0x400)
cmd_buff[2] = 1; // Set to registered
else
cmd_buff[2] = 0; // Set to not registered
LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
}
void InquireNotification(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = static_cast<u32>(SignalType::None); // Signal type
LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
}
void SendParameter(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 src_app_id = cmd_buff[1];
u32 dst_app_id = cmd_buff[2];
u32 signal_type = cmd_buff[3];
u32 buffer_size = cmd_buff[4];
u32 value = cmd_buff[5];
u32 handle = cmd_buff[6];
u32 size = cmd_buff[7];
u32 buffer = cmd_buff[8];
std::shared_ptr<HLE::Applets::Applet> dest_applet = HLE::Applets::Applet::Get(static_cast<AppletId>(dst_app_id));
if (dest_applet == nullptr) {
LOG_ERROR(Service_APT, "Unknown applet id=0x%08X", dst_app_id);
return;
}
MessageParameter param;
param.buffer_size = buffer_size;
param.destination_id = dst_app_id;
param.sender_id = src_app_id;
param.object = Kernel::g_handle_table.GetGeneric(handle);
param.signal = signal_type;
param.data = Memory::GetPointer(buffer);
cmd_buff[1] = dest_applet->ReceiveParameter(param).raw;
LOG_WARNING(Service_APT, "(STUBBED) called src_app_id=0x%08X, dst_app_id=0x%08X, signal_type=0x%08X,"
"buffer_size=0x%08X, value=0x%08X, handle=0x%08X, size=0x%08X, in_param_buffer_ptr=0x%08X",
src_app_id, dst_app_id, signal_type, buffer_size, value, handle, size, buffer);
}
void ReceiveParameter(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
u32 buffer_size = cmd_buff[2];
VAddr buffer = cmd_buff[0x104 >> 2];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = next_parameter.sender_id;
cmd_buff[3] = next_parameter.signal; // Signal type
cmd_buff[4] = next_parameter.buffer_size; // Parameter buffer size
cmd_buff[5] = 0x10;
cmd_buff[6] = 0;
if (next_parameter.object != nullptr)
cmd_buff[6] = Kernel::g_handle_table.Create(next_parameter.object).MoveFrom();
cmd_buff[7] = (next_parameter.buffer_size << 14) | 2;
cmd_buff[8] = buffer;
if (next_parameter.data)
memcpy(Memory::GetPointer(buffer), next_parameter.data, std::min(buffer_size, next_parameter.buffer_size));
LOG_WARNING(Service_APT, "called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
}
void GlanceParameter(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
u32 buffer_size = cmd_buff[2];
VAddr buffer = cmd_buff[0x104 >> 2];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = next_parameter.sender_id;
cmd_buff[3] = next_parameter.signal; // Signal type
cmd_buff[4] = next_parameter.buffer_size; // Parameter buffer size
cmd_buff[5] = 0x10;
cmd_buff[6] = 0;
if (next_parameter.object != nullptr)
cmd_buff[6] = Kernel::g_handle_table.Create(next_parameter.object).MoveFrom();
cmd_buff[7] = (next_parameter.buffer_size << 14) | 2;
cmd_buff[8] = buffer;
if (next_parameter.data)
memcpy(Memory::GetPointer(buffer), next_parameter.data, std::min(buffer_size, next_parameter.buffer_size));
LOG_WARNING(Service_APT, "called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
}
void CancelParameter(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 flag1 = cmd_buff[1];
u32 unk = cmd_buff[2];
u32 flag2 = cmd_buff[3];
u32 app_id = cmd_buff[4];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = 1; // Set to Success
LOG_WARNING(Service_APT, "(STUBBED) called flag1=0x%08X, unk=0x%08X, flag2=0x%08X, app_id=0x%08X",
flag1, unk, flag2, app_id);
}
void PrepareToStartApplication(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 title_info1 = cmd_buff[1];
u32 title_info2 = cmd_buff[2];
u32 title_info3 = cmd_buff[3];
u32 title_info4 = cmd_buff[4];
u32 flags = cmd_buff[5];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) called title_info1=0x%08X, title_info2=0x%08X, title_info3=0x%08X,"
"title_info4=0x%08X, flags=0x%08X", title_info1, title_info2, title_info3, title_info4, flags);
}
void StartApplication(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 buffer1_size = cmd_buff[1];
u32 buffer2_size = cmd_buff[2];
u32 flag = cmd_buff[3];
u32 size1 = cmd_buff[4];
u32 buffer1_ptr = cmd_buff[5];
u32 size2 = cmd_buff[6];
u32 buffer2_ptr = cmd_buff[7];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) called buffer1_size=0x%08X, buffer2_size=0x%08X, flag=0x%08X,"
"size1=0x%08X, buffer1_ptr=0x%08X, size2=0x%08X, buffer2_ptr=0x%08X",
buffer1_size, buffer2_size, flag, size1, buffer1_ptr, size2, buffer2_ptr);
}
void AppletUtility(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
// These are from 3dbrew - I'm not really sure what they're used for.
u32 unk = cmd_buff[1];
u32 buffer1_size = cmd_buff[2];
u32 buffer2_size = cmd_buff[3];
u32 buffer1_addr = cmd_buff[5];
u32 buffer2_addr = cmd_buff[65];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X, buffer1_size=0x%08X, buffer2_size=0x%08X, "
"buffer1_addr=0x%08X, buffer2_addr=0x%08X", unk, buffer1_size, buffer2_size,
buffer1_addr, buffer2_addr);
}
void SetAppCpuTimeLimit(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 value = cmd_buff[1];
cpu_percent = cmd_buff[2];
if (value != 1) {
LOG_ERROR(Service_APT, "This value should be one, but is actually %u!", value);
}
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) called cpu_percent=%u, value=%u", cpu_percent, value);
}
void GetAppCpuTimeLimit(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 value = cmd_buff[1];
if (value != 1) {
LOG_ERROR(Service_APT, "This value should be one, but is actually %u!", value);
}
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = cpu_percent;
LOG_WARNING(Service_APT, "(STUBBED) called value=%u", value);
}
void PrepareToStartLibraryApplet(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
cmd_buff[1] = HLE::Applets::Applet::Create(static_cast<AppletId>(cmd_buff[1])).raw;
}
void StartLibraryApplet(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
std::shared_ptr<HLE::Applets::Applet> applet = HLE::Applets::Applet::Get(static_cast<AppletId>(cmd_buff[1]));
if (applet == nullptr) {
cmd_buff[1] = -1; // TODO(Subv): Find the right error code
return;
}
AppletStartupParameter parameter;
parameter.buffer_size = cmd_buff[2];
parameter.object = Kernel::g_handle_table.GetGeneric(cmd_buff[4]);
parameter.data = Memory::GetPointer(cmd_buff[6]);
cmd_buff[1] = applet->Start(parameter).raw;
}
void Init() {
AddService(new APT_A_Interface);
AddService(new APT_S_Interface);
AddService(new APT_U_Interface);
// Load the shared system font (if available).
// The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
// generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
// a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
// "shared_font.bin" in the Citra "sysdata" directory.
shared_font.clear();
std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
FileUtil::CreateFullPath(filepath); // Create path if not already created
FileUtil::IOFile file(filepath, "rb");
if (file.IsOpen()) {
// Read shared font data
shared_font.resize((size_t)file.GetSize());
file.ReadBytes(shared_font.data(), (size_t)file.GetSize());
// Create shared font memory object
using Kernel::MemoryPermission;
shared_font_mem = Kernel::SharedMemory::Create(3 * 1024 * 1024, // 3MB
MemoryPermission::ReadWrite, MemoryPermission::Read, "APT_U:shared_font_mem");
} else {
LOG_WARNING(Service_APT, "Unable to load shared font: %s", filepath.c_str());
shared_font_mem = nullptr;
}
lock = Kernel::Mutex::Create(false, "APT_U:Lock");
cpu_percent = 0;
// TODO(bunnei): Check if these are created in Initialize or on APT process startup.
notification_event = Kernel::Event::Create(RESETTYPE_ONESHOT, "APT_U:Notification");
parameter_event = Kernel::Event::Create(RESETTYPE_ONESHOT, "APT_U:Start");
next_parameter.signal = static_cast<u32>(SignalType::AppJustStarted);
next_parameter.destination_id = 0x300;
}
void Shutdown() {
shared_font.clear();
shared_font_mem = nullptr;
lock = nullptr;
notification_event = nullptr;
parameter_event = nullptr;
}
} // namespace APT
} // namespace Service
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