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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
#include <cstddef>
#include <type_traits>
#include "common/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#define LCD_REG_INDEX(field_name) (offsetof(LCD::Regs, field_name) / sizeof(u32))
namespace LCD {
struct Regs {
union ColorFill {
u32 raw;
BitField<0, 8, u32> color_r;
BitField<8, 8, u32> color_g;
BitField<16, 8, u32> color_b;
BitField<24, 1, u32> is_enabled;
};
INSERT_PADDING_WORDS(0x81);
ColorFill color_fill_top;
INSERT_PADDING_WORDS(0xE);
u32 backlight_top;
INSERT_PADDING_WORDS(0x1F0);
ColorFill color_fill_bottom;
INSERT_PADDING_WORDS(0xE);
u32 backlight_bottom;
INSERT_PADDING_WORDS(0x16F);
static constexpr size_t NumIds() {
return sizeof(Regs) / sizeof(u32);
}
const u32& operator[](int index) const {
const u32* content = reinterpret_cast<const u32*>(this);
return content[index];
}
u32& operator[](int index) {
u32* content = reinterpret_cast<u32*>(this);
return content[index];
}
};
static_assert(std::is_standard_layout<Regs>::value, "Structure does not use standard layout");
// TODO: MSVC does not support using offsetof() on non-static data members even though this
// is technically allowed since C++11. This macro should be enabled once MSVC adds
// support for that.
#ifndef _MSC_VER
#define ASSERT_REG_POSITION(field_name, position) \
static_assert(offsetof(Regs, field_name) == position * 4, \
"Field " #field_name " has invalid position")
ASSERT_REG_POSITION(color_fill_top, 0x81);
ASSERT_REG_POSITION(backlight_top, 0x90);
ASSERT_REG_POSITION(color_fill_bottom, 0x281);
ASSERT_REG_POSITION(backlight_bottom, 0x290);
#undef ASSERT_REG_POSITION
#endif // !defined(_MSC_VER)
extern Regs g_regs;
template <typename T>
void Read(T& var, const u32 addr);
template <typename T>
void Write(u32 addr, const T data);
/// Initialize hardware
void Init();
/// Shutdown hardware
void Shutdown();
} // namespace
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