added a module for interfacing to hardware LCD

This commit is contained in:
bunnei 2014-04-05 01:23:51 -04:00
parent c1dfa75845
commit 9c2355ba4f
2 changed files with 129 additions and 0 deletions

View file

@ -0,0 +1,65 @@
/**
* Copyright (C) 2013 Citrus Emulator
*
* @file hw_lcd.cpp
* @author bunnei
* @date 2014-04-05
* @brief Hardware LCD interface
*
* @section LICENSE
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details at
* http://www.gnu.org/copyleft/gpl.html
*
* Official project repository can be found at:
* http://code.google.com/p/gekko-gc-emu/
*/
#include "log.h"
#include "core.h"
#include "hw_lcd.h"
namespace LCD {
static const u32 kFrameTicks = 268123480 / 30; // 268MHz / 30 frames per second
u64 g_last_ticks = 0; ///< Last CPU ticks
template <typename T>
inline void Read(T &var, const u32 addr) {
}
template <typename T>
inline void Write(u32 addr, const T data) {
}
/// Update hardware
void Update() {
u64 current_ticks = Core::g_app_core->ticks();
if ((current_ticks - g_last_ticks) >= kFrameTicks) {
g_last_ticks = current_ticks;
NOTICE_LOG(LCD, "Update frame");
}
}
/// Initialize hardware
void Init() {
g_last_ticks = Core::g_app_core->ticks();
NOTICE_LOG(LCD, "LCD initialized OK");
}
/// Shutdown hardware
void Shutdown() {
NOTICE_LOG(LCD, "LCD shutdown OK");
}
} // namespace

64
src/core/src/hw/hw_lcd.h Normal file
View file

@ -0,0 +1,64 @@
/**
* Copyright (C) 2013 Citrus Emulator
*
* @file hw_lcd.h
* @author bunnei
* @date 2014-04-05
* @brief Hardware LCD interface
*
* @section LICENSE
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details at
* http://www.gnu.org/copyleft/gpl.html
*
* Official project repository can be found at:
* http://code.google.com/p/gekko-gc-emu/
*/
#pragma once
#include "common_types.h"
namespace LCD {
enum {
TOP_ASPECT_X = 0x5,
TOP_ASPECT_Y = 0x3,
TOP_HEIGHT = 240,
TOP_WIDTH = 400,
BOTTOM_WIDTH = 320,
FRAMEBUFFER_SEL = 0x20184E59,
TOP_LEFT_FRAME1 = 0x20184E60,
TOP_LEFT_FRAME2 = 0x201CB370,
TOP_RIGHT_FRAME1 = 0x20282160,
TOP_RIGHT_FRAME2 = 0x202C8670,
SUB_FRAME1 = 0x202118E0,
SUB_FRAME2 = 0x20249CF0,
};
template <typename T>
inline void Read(T &var, const u32 addr);
template <typename T>
inline void Write(u32 addr, const T data);
/// Update hardware
void Update();
/// Initialize hardware
void Init();
/// Shutdown hardware
void Shutdown();
} // namespace