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-rw-r--r--src/core/hle/service/apt_u.cpp165
1 files changed, 114 insertions, 51 deletions
diff --git a/src/core/hle/service/apt_u.cpp b/src/core/hle/service/apt_u.cpp
index 4bb05ce40..d8b261ba7 100644
--- a/src/core/hle/service/apt_u.cpp
+++ b/src/core/hle/service/apt_u.cpp
@@ -1,13 +1,15 @@
// Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/common.h"
+#include "common/file_util.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 "apt_u.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -15,7 +17,19 @@
namespace APT_U {
+// 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 Handle shared_font_mem = 0;
+
static Handle lock_handle = 0;
+static std::vector<u8> shared_font;
/// Signals used by APT functions
enum class SignalType : u32 {
@@ -26,7 +40,7 @@ enum class SignalType : u32 {
};
void Initialize(Service::Interface* self) {
- u32* cmd_buff = Service::GetCommandBuffer();
+ u32* cmd_buff = Kernel::GetCommandBuffer();
cmd_buff[3] = Kernel::CreateEvent(RESETTYPE_ONESHOT, "APT_U:Menu"); // APT menu event handle
cmd_buff[4] = Kernel::CreateEvent(RESETTYPE_ONESHOT, "APT_U:Pause"); // APT pause event handle
@@ -39,11 +53,11 @@ void Initialize(Service::Interface* self) {
cmd_buff[1] = 0; // No error
- DEBUG_LOG(KERNEL, "called");
+ LOG_DEBUG(Service_APT, "called");
}
void GetLockHandle(Service::Interface* self) {
- u32* cmd_buff = Service::GetCommandBuffer();
+ u32* cmd_buff = Kernel::GetCommandBuffer();
u32 flags = cmd_buff[1]; // TODO(bunnei): Figure out the purpose of the flag field
if (0 == lock_handle) {
@@ -60,22 +74,22 @@ void GetLockHandle(Service::Interface* self) {
cmd_buff[4] = 0;
cmd_buff[5] = lock_handle;
- DEBUG_LOG(KERNEL, "called handle=0x%08X", cmd_buff[5]);
+ LOG_TRACE(Service_APT, "called handle=0x%08X", cmd_buff[5]);
}
void Enable(Service::Interface* self) {
- u32* cmd_buff = Service::GetCommandBuffer();
+ u32* cmd_buff = Kernel::GetCommandBuffer();
u32 unk = cmd_buff[1]; // TODO(bunnei): What is this field used for?
cmd_buff[1] = 0; // No error
- WARN_LOG(KERNEL, "(STUBBED) called unk=0x%08X", unk);
+ LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X", unk);
}
void InquireNotification(Service::Interface* self) {
- u32* cmd_buff = Service::GetCommandBuffer();
+ u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[2];
cmd_buff[1] = 0; // No error
cmd_buff[2] = static_cast<u32>(SignalType::None); // Signal type
- WARN_LOG(KERNEL, "(STUBBED) called app_id=0x%08X", app_id);
+ LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
}
/**
@@ -84,21 +98,21 @@ void InquireNotification(Service::Interface* self) {
* state so that this command will return an error if this command is used again if parameters were
* not set again. This is called when the second Initialize event is triggered. It returns a signal
* type indicating why it was triggered.
- * Inputs:
- * 1 : AppID
- * 2 : Parameter buffer size, max size is 0x1000
- * Outputs:
- * 1 : Result of function, 0 on success, otherwise error code
- * 2 : Unknown, for now assume AppID of the process which sent these parameters
- * 3 : Unknown, for now assume Signal type
- * 4 : Actual parameter buffer size, this is <= to the the input size
- * 5 : Value
- * 6 : Handle from the source process which set the parameters, likely used for shared memory
- * 7 : Size
- * 8 : Output parameter buffer ptr
+ * Inputs:
+ * 1 : AppID
+ * 2 : Parameter buffer size, max size is 0x1000
+ * Outputs:
+ * 1 : Result of function, 0 on success, otherwise error code
+ * 2 : Unknown, for now assume AppID of the process which sent these parameters
+ * 3 : Unknown, for now assume Signal type
+ * 4 : Actual parameter buffer size, this is <= to the the input size
+ * 5 : Value
+ * 6 : Handle from the source process which set the parameters, likely used for shared memory
+ * 7 : Size
+ * 8 : Output parameter buffer ptr
*/
void ReceiveParameter(Service::Interface* self) {
- u32* cmd_buff = Service::GetCommandBuffer();
+ u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
u32 buffer_size = cmd_buff[2];
cmd_buff[1] = 0; // No error
@@ -108,28 +122,28 @@ void ReceiveParameter(Service::Interface* self) {
cmd_buff[5] = 0;
cmd_buff[6] = 0;
cmd_buff[7] = 0;
- WARN_LOG(KERNEL, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
+ LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
}
/**
* APT_U::GlanceParameter service function. This is exactly the same as APT_U::ReceiveParameter
* (except for the word value prior to the output handle), except this will not clear the flag
* (except when responseword[3]==8 || responseword[3]==9) in NS state.
- * Inputs:
- * 1 : AppID
- * 2 : Parameter buffer size, max size is 0x1000
- * Outputs:
- * 1 : Result of function, 0 on success, otherwise error code
- * 2 : Unknown, for now assume AppID of the process which sent these parameters
- * 3 : Unknown, for now assume Signal type
- * 4 : Actual parameter buffer size, this is <= to the the input size
- * 5 : Value
- * 6 : Handle from the source process which set the parameters, likely used for shared memory
- * 7 : Size
- * 8 : Output parameter buffer ptr
+ * Inputs:
+ * 1 : AppID
+ * 2 : Parameter buffer size, max size is 0x1000
+ * Outputs:
+ * 1 : Result of function, 0 on success, otherwise error code
+ * 2 : Unknown, for now assume AppID of the process which sent these parameters
+ * 3 : Unknown, for now assume Signal type
+ * 4 : Actual parameter buffer size, this is <= to the the input size
+ * 5 : Value
+ * 6 : Handle from the source process which set the parameters, likely used for shared memory
+ * 7 : Size
+ * 8 : Output parameter buffer ptr
*/
void GlanceParameter(Service::Interface* self) {
- u32* cmd_buff = Service::GetCommandBuffer();
+ u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
u32 buffer_size = cmd_buff[2];
@@ -141,22 +155,22 @@ void GlanceParameter(Service::Interface* self) {
cmd_buff[6] = 0;
cmd_buff[7] = 0;
- WARN_LOG(KERNEL, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
+ LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
}
/**
* APT_U::AppletUtility service function
- * Inputs:
- * 1 : Unknown, but clearly used for something
- * 2 : Buffer 1 size (purpose is unknown)
- * 3 : Buffer 2 size (purpose is unknown)
- * 5 : Buffer 1 address (purpose is unknown)
- * 65 : Buffer 2 address (purpose is unknown)
- * Outputs:
- * 1 : Result of function, 0 on success, otherwise error code
+ * Inputs:
+ * 1 : Unknown, but clearly used for something
+ * 2 : Buffer 1 size (purpose is unknown)
+ * 3 : Buffer 2 size (purpose is unknown)
+ * 5 : Buffer 1 address (purpose is unknown)
+ * 65 : Buffer 2 address (purpose is unknown)
+ * Outputs:
+ * 1 : Result of function, 0 on success, otherwise error code
*/
void AppletUtility(Service::Interface* self) {
- u32* cmd_buff = Service::GetCommandBuffer();
+ u32* cmd_buff = Kernel::GetCommandBuffer();
// These are from 3dbrew - I'm not really sure what they're used for.
u32 unk = cmd_buff[1];
@@ -167,11 +181,39 @@ void AppletUtility(Service::Interface* self) {
cmd_buff[1] = 0; // No error
- WARN_LOG(KERNEL, "(STUBBED) called unk=0x%08X, buffer1_size=0x%08x, buffer2_size=0x%08x, "
+ 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);
}
+/**
+ * APT_U::GetSharedFont service function
+ * Outputs:
+ * 1 : Result of function, 0 on success, otherwise error code
+ * 2 : Virtual address of where shared font will be loaded in memory
+ * 4 : Handle to shared font memory
+ */
+void GetSharedFont(Service::Interface* self) {
+ LOG_TRACE(Kernel_SVC, "called");
+
+ 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] = 0x00440082;
+ cmd_buff[1] = 0; // No error
+ cmd_buff[2] = SHARED_FONT_VADDR;
+ cmd_buff[4] = shared_font_mem;
+ } else {
+ 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);
+ }
+}
+
const Interface::FunctionInfo FunctionTable[] = {
{0x00010040, GetLockHandle, "GetLockHandle"},
{0x00020080, Initialize, "Initialize"},
@@ -240,7 +282,7 @@ const Interface::FunctionInfo FunctionTable[] = {
{0x00410040, nullptr, "ReceiveCaptureBufferInfo"},
{0x00420080, nullptr, "SleepSystem"},
{0x00430040, nullptr, "NotifyToWait"},
- {0x00440000, nullptr, "GetSharedFont"},
+ {0x00440000, GetSharedFont, "GetSharedFont"},
{0x00450040, nullptr, "GetWirelessRebootInfo"},
{0x00460104, nullptr, "Wrap"},
{0x00470104, nullptr, "Unwrap"},
@@ -259,12 +301,33 @@ const Interface::FunctionInfo FunctionTable[] = {
// Interface class
Interface::Interface() {
- Register(FunctionTable, ARRAY_SIZE(FunctionTable));
+ // 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
+ shared_font_mem = Kernel::CreateSharedMemory("APT_U:shared_font_mem");
+ } else {
+ LOG_WARNING(Service_APT, "Unable to load shared font: %s", filepath.c_str());
+ shared_font_mem = 0;
+ }
lock_handle = 0;
-}
-Interface::~Interface() {
+ Register(FunctionTable, ARRAY_SIZE(FunctionTable));
}
} // namespace
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