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, 67 insertions, 0 deletions

diff --git a/src/core/hle/applets/swkbd.h b/src/core/hle/applets/swkbd.h
new file mode 100644
index 00000000..d7199690
--- /dev/null
+++ b/src/core/hle/applets/swkbd.h
@@ -0,0 +1,67 @@
+// Copyright 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/applets/applet.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/shared_memory.h"
+#include "core/hle/service/apt/apt.h"
+
+namespace HLE {
+namespace Applets {
+
+struct SoftwareKeyboardConfig {
+    INSERT_PADDING_WORDS(0x8);
+
+    u16 max_text_length; ///< Maximum length of the input text
+
+    INSERT_PADDING_BYTES(0x6E);
+
+    char16_t display_text[65]; ///< Text to display when asking the user for input
+
+    INSERT_PADDING_BYTES(0xE);
+
+    u32 default_text_offset; ///< Offset of the default text in the output SharedMemory
+
+    INSERT_PADDING_WORDS(0x3);
+
+    u32 shared_memory_size; ///< Size of the SharedMemory
+
+    INSERT_PADDING_WORDS(0x1);
+
+    u32 return_code; ///< Return code of the SoftwareKeyboard, usually 2, other values are unknown
+
+    INSERT_PADDING_WORDS(0x2);
+
+    u32 text_offset; ///< Offset in the SharedMemory where the output text starts
+    u16 text_length; ///< Length in characters of the output text
+
+    INSERT_PADDING_BYTES(0x2B6);
+};
+
+static_assert(sizeof(SoftwareKeyboardConfig) == 0x400, "Software Keyboard Config size is wrong");
+
+class SoftwareKeyboard : public Applet {
+public:
+    SoftwareKeyboard(Service::APT::AppletId id);
+    ~SoftwareKeyboard() {}
+
+    ResultCode ReceiveParameter(Service::APT::MessageParameter const& parameter) override;
+    ResultCode Start(Service::APT::AppletStartupParameter const& parameter) override;
+
+    /// TODO(Subv): Find out what this is actually used for. 
+    // It is believed that the application stores the current screen image here.
+    Kernel::SharedPtr<Kernel::SharedMemory> framebuffer_memory;
+
+    /// SharedMemory where the output text will be stored
+    Kernel::SharedPtr<Kernel::SharedMemory> text_memory;
+    
+    /// Configuration of this instance of the SoftwareKeyboard, as received from the application
+    SoftwareKeyboardConfig config;
+};
+
+}
+} // namespace