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.

1 files changed, 105 insertions, 34 deletions

diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp
index b454a270..0c3889e8 100644
--- a/src/core/hle/service/apt/apt.cpp
+++ b/src/core/hle/service/apt/apt.cpp
@@ -6,6 +6,7 @@
 #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"
@@ -34,12 +35,21 @@ 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> start_event; ///< APT start 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];
@@ -47,18 +57,18 @@ void Initialize(Service::Interface* self) {
 
     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(start_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();
-    start_event->Clear();
+    parameter_event->Clear();
 
     ASSERT_MSG((nullptr != lock), "Cannot initialize without lock");
     lock->Release();
 
     cmd_buff[1] = RESULT_SUCCESS.raw; // No error
 
-    LOG_TRACE(Service_APT, "called app_id=0x%08X, flags=0x%08X", app_id, flags);
+    LOG_WARNING(Service_APT, "called app_id=0x%08X, flags=0x%08X", app_id, flags);
 }
 
 void GetSharedFont(Service::Interface* self) {
@@ -85,9 +95,7 @@ void GetSharedFont(Service::Interface* self) {
 void NotifyToWait(Service::Interface* self) {
     u32* cmd_buff = Kernel::GetCommandBuffer();
     u32 app_id = cmd_buff[1];
-    // TODO(Subv): Verify this, it seems to get SWKBD and Home Menu further.
-    start_event->Signal();
-
+    
     cmd_buff[1] = RESULT_SUCCESS.raw; // No error
     LOG_WARNING(Service_APT, "(STUBBED) app_id=%u", app_id);
 }
@@ -112,6 +120,7 @@ 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);
 }
 
@@ -121,8 +130,8 @@ void GetAppletManInfo(Service::Interface* self) {
     cmd_buff[1] = RESULT_SUCCESS.raw; // No error
     cmd_buff[2] = 0;
     cmd_buff[3] = 0;
-    cmd_buff[4] = static_cast<u32>(AppID::HomeMenu); // Home menu AppID
-    cmd_buff[5] = static_cast<u32>(AppID::Application); // TODO(purpasmart96): Do this correctly
+    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);
 }
@@ -131,7 +140,13 @@ void IsRegistered(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] = 1; // Set to registered
+    /// 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);
 }
 
@@ -145,50 +160,81 @@ void InquireNotification(Service::Interface* self) {
 
 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 in_param_buffer_ptr = cmd_buff[8];
+    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;
+    }
 
-    cmd_buff[1] = RESULT_SUCCESS.raw; // No error
+    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, in_param_buffer_ptr);
+               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] = 0;
-    cmd_buff[3] = static_cast<u32>(SignalType::AppJustStarted); // Signal type
-    cmd_buff[4] = 0x10; // Parameter buffer size (16)
-    cmd_buff[5] = 0;
+    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;
-    cmd_buff[7] = 0;
-    LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
+    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] = 0;
-    cmd_buff[3] = static_cast<u32>(SignalType::AppJustStarted); // Signal type
-    cmd_buff[4] = 0x10; // Parameter buffer size (16)
-    cmd_buff[5] = 0;
+    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;
-    cmd_buff[7] = 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;
 
-    LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
+    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) {
@@ -281,6 +327,28 @@ void GetAppCpuTimeLimit(Service::Interface* self) {
     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);
@@ -318,7 +386,10 @@ void Init() {
 
     // TODO(bunnei): Check if these are created in Initialize or on APT process startup.
     notification_event = Kernel::Event::Create(RESETTYPE_ONESHOT, "APT_U:Notification");
-    start_event = Kernel::Event::Create(RESETTYPE_ONESHOT, "APT_U:Start");
+    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() {
@@ -326,7 +397,7 @@ void Shutdown() {
     shared_font_mem = nullptr;
     lock = nullptr;
     notification_event = nullptr;
-    start_event = nullptr;
+    parameter_event = nullptr;
 }
 
 } // namespace APT