90 lines
2.1 KiB
C++
90 lines
2.1 KiB
C++
// Copyright 2015 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <cstddef>
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#include "common/bit_field.h"
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#include "common/common_funcs.h"
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#include "common/common_types.h"
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#define LCD_REG_INDEX(field_name) (offsetof(LCD::Regs, field_name) / sizeof(u32))
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namespace LCD {
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struct Regs {
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union ColorFill {
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u32 raw;
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BitField<0, 8, u32> color_r;
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BitField<8, 8, u32> color_g;
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BitField<16, 8, u32> color_b;
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BitField<24, 1, u32> is_enabled;
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};
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INSERT_PADDING_WORDS(0x81);
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ColorFill color_fill_top;
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INSERT_PADDING_WORDS(0xE);
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u32 backlight_top;
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INSERT_PADDING_WORDS(0x1F0);
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ColorFill color_fill_bottom;
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INSERT_PADDING_WORDS(0xE);
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u32 backlight_bottom;
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INSERT_PADDING_WORDS(0x16F);
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static inline size_t NumIds() {
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return sizeof(Regs) / sizeof(u32);
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}
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u32& operator [] (int index) const {
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u32* content = (u32*)this;
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return content[index];
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}
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u32& operator [] (int index) {
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u32* content = (u32*)this;
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return content[index];
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}
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#undef ASSERT_MEMBER_SIZE
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};
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static_assert(std::is_standard_layout<Regs>::value, "Structure does not use standard layout");
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// TODO: MSVC does not support using offsetof() on non-static data members even though this
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// is technically allowed since C++11. This macro should be enabled once MSVC adds
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// support for that.
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#ifndef _MSC_VER
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#define ASSERT_REG_POSITION(field_name, position) \
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static_assert(offsetof(Regs, field_name) == position * 4, \
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"Field "#field_name" has invalid position")
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ASSERT_REG_POSITION(color_fill_top, 0x81);
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ASSERT_REG_POSITION(backlight_top, 0x90);
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ASSERT_REG_POSITION(color_fill_bottom, 0x281);
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ASSERT_REG_POSITION(backlight_bottom, 0x290);
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#undef ASSERT_REG_POSITION
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#endif // !defined(_MSC_VER)
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extern Regs g_regs;
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template <typename T>
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void Read(T &var, const u32 addr);
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template <typename T>
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void Write(u32 addr, const T data);
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/// Initialize hardware
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void Init();
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/// Shutdown hardware
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void Shutdown();
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} // namespace
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