From 9c2355ba4f37585cd0054b3f05251a814ccbc0eb Mon Sep 17 00:00:00 2001 From: bunnei Date: Sat, 5 Apr 2014 01:23:51 -0400 Subject: [PATCH] added a module for interfacing to hardware LCD --- src/core/src/hw/hw_lcd.cpp | 65 ++++++++++++++++++++++++++++++++++++++ src/core/src/hw/hw_lcd.h | 64 +++++++++++++++++++++++++++++++++++++ 2 files changed, 129 insertions(+) create mode 100644 src/core/src/hw/hw_lcd.cpp create mode 100644 src/core/src/hw/hw_lcd.h diff --git a/src/core/src/hw/hw_lcd.cpp b/src/core/src/hw/hw_lcd.cpp new file mode 100644 index 000000000..19e3b4ab4 --- /dev/null +++ b/src/core/src/hw/hw_lcd.cpp @@ -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 +inline void Read(T &var, const u32 addr) { +} + +template +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 diff --git a/src/core/src/hw/hw_lcd.h b/src/core/src/hw/hw_lcd.h new file mode 100644 index 000000000..fa19b1cd4 --- /dev/null +++ b/src/core/src/hw/hw_lcd.h @@ -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 +inline void Read(T &var, const u32 addr); + +template +inline void Write(u32 addr, const T data); + +/// Update hardware +void Update(); + +/// Initialize hardware +void Init(); + +/// Shutdown hardware +void Shutdown(); + + +} // namespace