citra/src/core/hle/shared_page.h

88 lines
2.6 KiB
C++

// 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/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "common/swap.h"
#include "core/memory.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
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,
};
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_unknown2; // 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");
extern SharedPageDef shared_page;
void Init();
void SetMacAddress(const MacAddress&);
void SetWifiLinkLevel(WifiLinkLevel);
void Set3DLed(u8);
} // namespace SharedPage