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-rw-r--r--src/core/CMakeLists.txt2
-rw-r--r--src/core/hle/hle.cpp3
-rw-r--r--src/core/hle/shared_page.cpp80
-rw-r--r--src/core/hle/shared_page.h26
-rw-r--r--src/core/mem_map_funcs.cpp5
5 files changed, 116 insertions, 0 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index b67226d8d..d248b454c 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -69,6 +69,7 @@ set(SRCS
hle/service/y2r_u.cpp
hle/config_mem.cpp
hle/hle.cpp
+ hle/shared_page.cpp
hle/svc.cpp
hw/gpu.cpp
hw/hw.cpp
@@ -163,6 +164,7 @@ set(HEADERS
hle/result.h
hle/function_wrappers.h
hle/hle.h
+ hle/shared_page.h
hle/svc.h
hw/gpu.h
hw/hw.h
diff --git a/src/core/hle/hle.cpp b/src/core/hle/hle.cpp
index 33ac12507..f76048d14 100644
--- a/src/core/hle/hle.cpp
+++ b/src/core/hle/hle.cpp
@@ -6,6 +6,7 @@
#include "core/mem_map.h"
#include "core/hle/hle.h"
+#include "core/hle/shared_page.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/service/service.h"
#include "core/hle/service/fs/archive.h"
@@ -71,6 +72,8 @@ void Init() {
RegisterAllModules();
+ SharedPage::Init();
+
LOG_DEBUG(Kernel, "initialized OK");
}
diff --git a/src/core/hle/shared_page.cpp b/src/core/hle/shared_page.cpp
new file mode 100644
index 000000000..6033a53b4
--- /dev/null
+++ b/src/core/hle/shared_page.cpp
@@ -0,0 +1,80 @@
+// Copyright 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/common_types.h"
+#include "common/log.h"
+
+#include "core/core.h"
+#include "core/mem_map.h"
+#include "core/hle/config_mem.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace SharedPage {
+
+// helper macro to properly align structure members.
+// Calling INSERT_PADDING_BYTES will add a new member variable with a name like "pad121",
+// depending on the current source line to make sure variable names are unique.
+#define INSERT_PADDING_BYTES_HELPER1(x, y) x ## y
+#define INSERT_PADDING_BYTES_HELPER2(x, y) INSERT_PADDING_BYTES_HELPER1(x, y)
+#define INSERT_PADDING_BYTES(num_words) u8 INSERT_PADDING_BYTES_HELPER2(pad, __LINE__)[(num_words)]
+
+// see http://3dbrew.org/wiki/Configuration_Memory#Shared_Memory_Page_For_ARM11_Processes
+
+#pragma pack(1)
+struct DateTime {
+ u64 date_time; // 0x0
+ u64 update_tick; // 0x8
+ INSERT_PADDING_BYTES(0x20 - 0x10); // 0x10
+};
+
+struct SharedPageDef {
+ // most of these names are taken from the 3dbrew page linked above.
+ u32 date_time_selector; // 0x0
+ u8 running_hw; // 0x4
+ u8 mcu_hw_info; // 0x5: don't know what the acronyms mean
+ INSERT_PADDING_BYTES(0x20 - 0x6); // 0x6
+ DateTime date_time_0; // 0x20
+ DateTime date_time_1; // 0x40
+ u8 wifi_macaddr[6]; // 0x60
+ u8 wifi_unknown1; // 0x66: 3dbrew says these are "Likely wifi hardware related"
+ u8 wifi_unknown2; // 0x67
+ INSERT_PADDING_BYTES(0x80 - 0x68); // 0x68
+ float sliderstate_3d; // 0x80
+ u8 ledstate_3d; // 0x84
+ INSERT_PADDING_BYTES(0xA0 - 0x85); // 0x85
+ u64 menu_title_id; // 0xA0
+ u64 active_menu_title_id; // 0xA8
+ INSERT_PADDING_BYTES(0x1000 - 0xB0); // 0xB0
+};
+#pragma pack()
+
+static_assert(sizeof(DateTime) == 0x20, "Datetime size is wrong");
+static_assert(sizeof(SharedPageDef) == Memory::SHARED_PAGE_SIZE, "Shared page structure size is wrong");
+
+static SharedPageDef shared_page;
+
+template <typename T>
+inline void Read(T &var, const u32 addr) {
+ u32 offset = addr - Memory::SHARED_PAGE_VADDR;
+ var = *(reinterpret_cast<T*>(((uintptr_t)&shared_page) + offset));
+}
+
+// Explicitly instantiate template functions because we aren't defining this in the header:
+template void Read<u64>(u64 &var, const u32 addr);
+template void Read<u32>(u32 &var, const u32 addr);
+template void Read<u16>(u16 &var, const u32 addr);
+template void Read<u8>(u8 &var, const u32 addr);
+
+void Set3DSlider(float amount) {
+ shared_page.sliderstate_3d = amount;
+ shared_page.ledstate_3d = (amount == 0.0f); // off when non-zero
+}
+
+void Init() {
+ shared_page.running_hw = 0x1; // product
+ Set3DSlider(0.0f);
+}
+
+} // namespace
diff --git a/src/core/hle/shared_page.h b/src/core/hle/shared_page.h
new file mode 100644
index 000000000..8f93545ec
--- /dev/null
+++ b/src/core/hle/shared_page.h
@@ -0,0 +1,26 @@
+// Copyright 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+/**
+ * The shared page stores various runtime configuration settings. This memory page is
+ * read-only for user processes (there is a bit in the header that grants the process
+ * write access, according to 3dbrew; this is not emulated)
+ */
+
+#include "common/common_types.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace SharedPage {
+
+template <typename T>
+void Read(T &var, const u32 addr);
+
+void Set3DSlider(float amount);
+
+void Init();
+
+} // namespace
diff --git a/src/core/mem_map_funcs.cpp b/src/core/mem_map_funcs.cpp
index 97ef1c5a3..0e3b81b28 100644
--- a/src/core/mem_map_funcs.cpp
+++ b/src/core/mem_map_funcs.cpp
@@ -9,6 +9,7 @@
#include "core/mem_map.h"
#include "core/hw/hw.h"
#include "hle/config_mem.h"
+#include "hle/shared_page.h"
namespace Memory {
@@ -82,6 +83,10 @@ inline void Read(T &var, const VAddr vaddr) {
} else if ((vaddr >= CONFIG_MEMORY_VADDR) && (vaddr < CONFIG_MEMORY_VADDR_END)) {
ConfigMem::Read<T>(var, vaddr);
+ // Shared page
+ } else if ((vaddr >= SHARED_PAGE_VADDR) && (vaddr < SHARED_PAGE_VADDR_END)) {
+ SharedPage::Read<T>(var, vaddr);
+
// DSP memory
} else if ((vaddr >= DSP_MEMORY_VADDR) && (vaddr < DSP_MEMORY_VADDR_END)) {
var = *((const T*)&g_dsp_mem[vaddr - DSP_MEMORY_VADDR]);