343 lines
15 KiB
C++
343 lines
15 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/common.h"
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#include "common/file_util.h"
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#include "core/hle/hle.h"
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#include "core/hle/kernel/event.h"
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#include "core/hle/kernel/mutex.h"
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#include "core/hle/kernel/shared_memory.h"
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#include "core/hle/service/apt_u.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Namespace APT_U
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namespace APT_U {
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// Address used for shared font (as observed on HW)
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// TODO(bunnei): This is the hard-coded address where we currently dump the shared font from via
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// https://github.com/citra-emu/3dsutils. This is technically a hack, and will not work at any
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// address other than 0x18000000 due to internal pointers in the shared font dump that would need to
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// be relocated. This might be fixed by dumping the shared font @ address 0x00000000 and then
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// correctly mapping it in Citra, however we still do not understand how the mapping is determined.
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static const VAddr SHARED_FONT_VADDR = 0x18000000;
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/// Handle to shared memory region designated to for shared system font
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static Handle shared_font_mem = 0;
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static Handle lock_handle = 0;
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static Handle notification_event_handle = 0; ///< APT notification event handle
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static Handle pause_event_handle = 0; ///< APT pause event handle
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static std::vector<u8> shared_font;
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/// Signals used by APT functions
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enum class SignalType : u32 {
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None = 0x0,
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AppJustStarted = 0x1,
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ReturningToApp = 0xB,
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ExitingApp = 0xC,
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};
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void Initialize(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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notification_event_handle = Kernel::CreateEvent(RESETTYPE_ONESHOT, "APT_U:Notification");
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pause_event_handle = Kernel::CreateEvent(RESETTYPE_ONESHOT, "APT_U:Pause");
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cmd_buff[3] = notification_event_handle;
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cmd_buff[4] = pause_event_handle;
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Kernel::SetEventLocked(notification_event_handle, true);
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Kernel::SetEventLocked(pause_event_handle, false); // Fire start event
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_assert_msg_(KERNEL, (0 != lock_handle), "Cannot initialize without lock");
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Kernel::ReleaseMutex(lock_handle);
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cmd_buff[1] = 0; // No error
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}
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void NotifyToWait(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 app_id = cmd_buff[1];
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// TODO(Subv): Verify this, it seems to get SWKBD and Home Menu further.
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Kernel::SignalEvent(pause_event_handle);
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LOG_WARNING(Service_APT, "(STUBBED) app_id=%u", app_id);
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cmd_buff[0] = 0;
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}
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void GetLockHandle(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 flags = cmd_buff[1]; // TODO(bunnei): Figure out the purpose of the flag field
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if (0 == lock_handle) {
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// TODO(bunnei): Verify if this is created here or at application boot?
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lock_handle = Kernel::CreateMutex(false, "APT_U:Lock");
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Kernel::ReleaseMutex(lock_handle);
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}
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cmd_buff[1] = 0; // No error
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// Not sure what these parameters are used for, but retail apps check that they are 0 after
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// GetLockHandle has been called.
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cmd_buff[2] = 0;
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cmd_buff[3] = 0;
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cmd_buff[4] = 0;
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cmd_buff[5] = lock_handle;
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LOG_TRACE(Service_APT, "called handle=0x%08X", cmd_buff[5]);
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}
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void Enable(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 unk = cmd_buff[1]; // TODO(bunnei): What is this field used for?
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cmd_buff[1] = 0; // No error
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LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X", unk);
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}
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void InquireNotification(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 app_id = cmd_buff[1];
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cmd_buff[1] = 0; // No error
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cmd_buff[2] = static_cast<u32>(SignalType::None); // Signal type
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LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
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}
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/**
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* APT_U::ReceiveParameter service function. This returns the current parameter data from NS state,
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* from the source process which set the parameters. Once finished, NS will clear a flag in the NS
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* state so that this command will return an error if this command is used again if parameters were
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* not set again. This is called when the second Initialize event is triggered. It returns a signal
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* type indicating why it was triggered.
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* Inputs:
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* 1 : AppID
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* 2 : Parameter buffer size, max size is 0x1000
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : Unknown, for now assume AppID of the process which sent these parameters
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* 3 : Unknown, for now assume Signal type
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* 4 : Actual parameter buffer size, this is <= to the the input size
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* 5 : Value
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* 6 : Handle from the source process which set the parameters, likely used for shared memory
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* 7 : Size
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* 8 : Output parameter buffer ptr
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*/
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void ReceiveParameter(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 app_id = cmd_buff[1];
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u32 buffer_size = cmd_buff[2];
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cmd_buff[1] = 0; // No error
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cmd_buff[2] = 0;
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cmd_buff[3] = static_cast<u32>(SignalType::AppJustStarted); // Signal type
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cmd_buff[4] = 0x10; // Parameter buffer size (16)
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cmd_buff[5] = 0;
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cmd_buff[6] = 0;
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cmd_buff[7] = 0;
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LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
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}
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/**
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* APT_U::GlanceParameter service function. This is exactly the same as APT_U::ReceiveParameter
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* (except for the word value prior to the output handle), except this will not clear the flag
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* (except when responseword[3]==8 || responseword[3]==9) in NS state.
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* Inputs:
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* 1 : AppID
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* 2 : Parameter buffer size, max size is 0x1000
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : Unknown, for now assume AppID of the process which sent these parameters
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* 3 : Unknown, for now assume Signal type
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* 4 : Actual parameter buffer size, this is <= to the the input size
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* 5 : Value
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* 6 : Handle from the source process which set the parameters, likely used for shared memory
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* 7 : Size
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* 8 : Output parameter buffer ptr
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*/
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void GlanceParameter(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 app_id = cmd_buff[1];
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u32 buffer_size = cmd_buff[2];
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cmd_buff[1] = 0; // No error
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cmd_buff[2] = 0;
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cmd_buff[3] = static_cast<u32>(SignalType::AppJustStarted); // Signal type
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cmd_buff[4] = 0x10; // Parameter buffer size (16)
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cmd_buff[5] = 0;
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cmd_buff[6] = 0;
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cmd_buff[7] = 0;
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LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
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}
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/**
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* APT_U::AppletUtility service function
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* Inputs:
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* 1 : Unknown, but clearly used for something
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* 2 : Buffer 1 size (purpose is unknown)
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* 3 : Buffer 2 size (purpose is unknown)
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* 5 : Buffer 1 address (purpose is unknown)
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* 65 : Buffer 2 address (purpose is unknown)
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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*/
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void AppletUtility(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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// These are from 3dbrew - I'm not really sure what they're used for.
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u32 unk = cmd_buff[1];
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u32 buffer1_size = cmd_buff[2];
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u32 buffer2_size = cmd_buff[3];
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u32 buffer1_addr = cmd_buff[5];
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u32 buffer2_addr = cmd_buff[65];
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cmd_buff[1] = 0; // No error
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LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X, buffer1_size=0x%08x, buffer2_size=0x%08x, "
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"buffer1_addr=0x%08x, buffer2_addr=0x%08x", unk, buffer1_size, buffer2_size,
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buffer1_addr, buffer2_addr);
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}
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/**
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* APT_U::GetSharedFont service function
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : Virtual address of where shared font will be loaded in memory
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* 4 : Handle to shared font memory
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*/
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void GetSharedFont(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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if (!shared_font.empty()) {
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// TODO(bunnei): This function shouldn't copy the shared font every time it's called.
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// Instead, it should probably map the shared font as RO memory. We don't currently have
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// an easy way to do this, but the copy should be sufficient for now.
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memcpy(Memory::GetPointer(SHARED_FONT_VADDR), shared_font.data(), shared_font.size());
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cmd_buff[0] = 0x00440082;
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cmd_buff[1] = 0; // No error
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cmd_buff[2] = SHARED_FONT_VADDR;
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cmd_buff[4] = shared_font_mem;
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} else {
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cmd_buff[1] = -1; // Generic error (not really possible to verify this on hardware)
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LOG_ERROR(Kernel_SVC, "called, but %s has not been loaded!", SHARED_FONT);
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}
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}
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const Interface::FunctionInfo FunctionTable[] = {
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{0x00010040, GetLockHandle, "GetLockHandle"},
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{0x00020080, Initialize, "Initialize"},
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{0x00030040, Enable, "Enable"},
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{0x00040040, nullptr, "Finalize"},
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{0x00050040, nullptr, "GetAppletManInfo"},
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{0x00060040, nullptr, "GetAppletInfo"},
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{0x00070000, nullptr, "GetLastSignaledAppletId"},
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{0x00080000, nullptr, "CountRegisteredApplet"},
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{0x00090040, nullptr, "IsRegistered"},
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{0x000A0040, nullptr, "GetAttribute"},
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{0x000B0040, InquireNotification, "InquireNotification"},
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{0x000C0104, nullptr, "SendParameter"},
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{0x000D0080, ReceiveParameter, "ReceiveParameter"},
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{0x000E0080, GlanceParameter, "GlanceParameter"},
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{0x000F0100, nullptr, "CancelParameter"},
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{0x001000C2, nullptr, "DebugFunc"},
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{0x001100C0, nullptr, "MapProgramIdForDebug"},
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{0x00120040, nullptr, "SetHomeMenuAppletIdForDebug"},
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{0x00130000, nullptr, "GetPreparationState"},
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{0x00140040, nullptr, "SetPreparationState"},
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{0x00150140, nullptr, "PrepareToStartApplication"},
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{0x00160040, nullptr, "PreloadLibraryApplet"},
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{0x00170040, nullptr, "FinishPreloadingLibraryApplet"},
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{0x00180040, nullptr, "PrepareToStartLibraryApplet"},
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{0x00190040, nullptr, "PrepareToStartSystemApplet"},
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{0x001A0000, nullptr, "PrepareToStartNewestHomeMenu"},
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{0x001B00C4, nullptr, "StartApplication"},
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{0x001C0000, nullptr, "WakeupApplication"},
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{0x001D0000, nullptr, "CancelApplication"},
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{0x001E0084, nullptr, "StartLibraryApplet"},
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{0x001F0084, nullptr, "StartSystemApplet"},
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{0x00200044, nullptr, "StartNewestHomeMenu"},
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{0x00210000, nullptr, "OrderToCloseApplication"},
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{0x00220040, nullptr, "PrepareToCloseApplication"},
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{0x00230040, nullptr, "PrepareToJumpToApplication"},
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{0x00240044, nullptr, "JumpToApplication"},
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{0x002500C0, nullptr, "PrepareToCloseLibraryApplet"},
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{0x00260000, nullptr, "PrepareToCloseSystemApplet"},
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{0x00270044, nullptr, "CloseApplication"},
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{0x00280044, nullptr, "CloseLibraryApplet"},
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{0x00290044, nullptr, "CloseSystemApplet"},
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{0x002A0000, nullptr, "OrderToCloseSystemApplet"},
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{0x002B0000, nullptr, "PrepareToJumpToHomeMenu"},
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{0x002C0044, nullptr, "JumpToHomeMenu"},
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{0x002D0000, nullptr, "PrepareToLeaveHomeMenu"},
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{0x002E0044, nullptr, "LeaveHomeMenu"},
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{0x002F0040, nullptr, "PrepareToLeaveResidentApplet"},
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{0x00300044, nullptr, "LeaveResidentApplet"},
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{0x00310100, nullptr, "PrepareToDoApplicationJump"},
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{0x00320084, nullptr, "DoApplicationJump"},
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{0x00330000, nullptr, "GetProgramIdOnApplicationJump"},
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{0x00340084, nullptr, "SendDeliverArg"},
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{0x00350080, nullptr, "ReceiveDeliverArg"},
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{0x00360040, nullptr, "LoadSysMenuArg"},
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{0x00370042, nullptr, "StoreSysMenuArg"},
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{0x00380040, nullptr, "PreloadResidentApplet"},
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{0x00390040, nullptr, "PrepareToStartResidentApplet"},
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{0x003A0044, nullptr, "StartResidentApplet"},
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{0x003B0040, nullptr, "CancelLibraryApplet"},
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{0x003C0042, nullptr, "SendDspSleep"},
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{0x003D0042, nullptr, "SendDspWakeUp"},
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{0x003E0080, nullptr, "ReplySleepQuery"},
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{0x003F0040, nullptr, "ReplySleepNotificationComplete"},
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{0x00400042, nullptr, "SendCaptureBufferInfo"},
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{0x00410040, nullptr, "ReceiveCaptureBufferInfo"},
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{0x00420080, nullptr, "SleepSystem"},
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{0x00430040, NotifyToWait, "NotifyToWait"},
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{0x00440000, GetSharedFont, "GetSharedFont"},
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{0x00450040, nullptr, "GetWirelessRebootInfo"},
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{0x00460104, nullptr, "Wrap"},
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{0x00470104, nullptr, "Unwrap"},
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{0x00480100, nullptr, "GetProgramInfo"},
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{0x00490180, nullptr, "Reboot"},
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{0x004A0040, nullptr, "GetCaptureInfo"},
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{0x004B00C2, AppletUtility, "AppletUtility"},
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{0x004C0000, nullptr, "SetFatalErrDispMode"},
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{0x004D0080, nullptr, "GetAppletProgramInfo"},
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{0x004E0000, nullptr, "HardwareResetAsync"},
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{0x004F0080, nullptr, "SetApplicationCpuTimeLimit"},
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{0x00500040, nullptr, "GetApplicationCpuTimeLimit"},
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};
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Interface class
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Interface::Interface() {
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// Load the shared system font (if available).
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// The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
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// generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
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// a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
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// "shared_font.bin" in the Citra "sysdata" directory.
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shared_font.clear();
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std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
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FileUtil::CreateFullPath(filepath); // Create path if not already created
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FileUtil::IOFile file(filepath, "rb");
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if (file.IsOpen()) {
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// Read shared font data
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shared_font.resize((size_t)file.GetSize());
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file.ReadBytes(shared_font.data(), (size_t)file.GetSize());
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// Create shared font memory object
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shared_font_mem = Kernel::CreateSharedMemory("APT_U:shared_font_mem");
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} else {
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LOG_WARNING(Service_APT, "Unable to load shared font: %s", filepath.c_str());
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shared_font_mem = 0;
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}
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lock_handle = 0;
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Register(FunctionTable, ARRAY_SIZE(FunctionTable));
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}
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} // namespace
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