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// 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 <chrono>
#include <ctime>
#include <memory>
#include <boost/serialization/export.hpp>
#include "common/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/memory_ref.h"
#include "common/swap.h"
#include "core/memory.h"
namespace Core {
struct TimingEventType;
class Timing;
} // namespace Core
namespace SharedPage {
// See http://3dbrew.org/wiki/Configuration_Memory#Shared_Memory_Page_For_ARM11_Processes
struct DateTime {
u64_le date_time; // 0
u64_le update_tick; // 8
u64_le tick_to_second_coefficient; // 10
u64_le tick_offset; // 18
};
static_assert(sizeof(DateTime) == 0x20, "Datetime size is wrong");
union BatteryState {
u8 raw;
BitField<0, 1, u8> is_adapter_connected;
BitField<1, 1, u8> is_charging;
BitField<2, 3, u8> charge_level;
};
using MacAddress = std::array<u8, 6>;
// Default MAC address in the Nintendo 3DS range
constexpr MacAddress DefaultMac = {0x40, 0xF4, 0x07, 0x00, 0x00, 0x00};
enum class WifiLinkLevel : u8 {
Off = 0,
Poor = 1,
Good = 2,
Best = 3,
};
enum class WifiState : u8 {
Invalid = 0,
Enabled = 1,
Internet = 2,
Local1 = 3,
Local2 = 4,
Local3 = 6,
Disabled = 7,
};
struct SharedPageDef {
// Most of these names are taken from the 3dbrew page linked above.
u32_le date_time_counter; // 0
u8 running_hw; // 4
/// "Microcontroller hardware info"
u8 mcu_hw_info; // 5
INSERT_PADDING_BYTES(0x20 - 0x6); // 6
DateTime date_time_0; // 20
DateTime date_time_1; // 40
u8 wifi_macaddr[6]; // 60
u8 wifi_link_level; // 66
u8 wifi_state; // 67
INSERT_PADDING_BYTES(0x80 - 0x68); // 68
float_le sliderstate_3d; // 80
u8 ledstate_3d; // 84
BatteryState battery_state; // 85
u8 unknown_value; // 86
INSERT_PADDING_BYTES(0xA0 - 0x87); // 87
u64_le menu_title_id; // A0
u64_le active_menu_title_id; // A8
INSERT_PADDING_BYTES(0x1000 - 0xB0); // B0
};
static_assert(sizeof(SharedPageDef) == Memory::SHARED_PAGE_SIZE,
"Shared page structure size is wrong");
class Handler : public BackingMem {
public:
Handler(Core::Timing& timing, u64 override_init_time);
void SetMacAddress(const MacAddress&);
MacAddress GetMacAddress();
void SetWifiLinkLevel(WifiLinkLevel);
WifiLinkLevel GetWifiLinkLevel();
void SetWifiState(WifiState);
void Set3DLed(u8);
void Set3DSlider(float);
SharedPageDef& GetSharedPage();
u8* GetPtr() override {
return reinterpret_cast<u8*>(&shared_page);
}
const u8* GetPtr() const override {
return reinterpret_cast<const u8*>(&shared_page);
}
std::size_t GetSize() const override {
return sizeof(shared_page);
}
/// Gets the system time in milliseconds since the year 2000.
u64 GetSystemTimeSince2000() const;
/// Gets the system time in milliseconds since the year 1900.
u64 GetSystemTimeSince1900() const;
private:
void UpdateTimeCallback(std::uintptr_t user_data, int cycles_late);
Core::Timing& timing;
Core::TimingEventType* update_time_event;
std::chrono::seconds init_time;
SharedPageDef shared_page;
template <class Archive>
void serialize(Archive& ar, const unsigned int);
friend class boost::serialization::access;
};
} // namespace SharedPage
namespace boost::serialization {
template <class Archive>
void load_construct_data(Archive& ar, SharedPage::Handler* t, const unsigned int);
} // namespace boost::serialization
BOOST_CLASS_EXPORT_KEY(SharedPage::Handler)
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