mirror of
https://github.com/dingusdev/dingusppc.git
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117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-22 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file Heathrow hard drive controller */
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#include <devices/common/ide/ide_hd.h>
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#include <fstream>
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#include <limits>
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#include <stdio.h>
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#include <loguru.hpp>
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#define sector_size 512
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using namespace std;
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IdeHardDisk::IdeHardDisk() {
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this->name = "IDE0";
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supports_types(HWCompType::IDE_DEV);
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}
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void IdeHardDisk::insert_image(std::string filename) {
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hdd_img.open(filename);
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// Taken from:
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// https://stackoverflow.com/questions/22984956/tellg-function-give-wrong-size-of-file/22986486
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hdd_img.ignore(std::numeric_limits<std::streamsize>::max());
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img_size = this->hdd_img.gcount();
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hdd_img.clear(); // Since ignore will have set eof.
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hdd_img.seekg(0, std::ios_base::beg);
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}
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uint32_t IdeHardDisk::read(int reg) {
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switch (reg) {
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case IDE_Reg::IDE_DATA:
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LOG_F(0, "Retrieving DATA from IDE: %x", regs[IDE_Reg::IDE_DATA]);
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return regs[IDE_Reg::IDE_DATA];
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case IDE_Reg::ERROR:
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return regs[IDE_Reg::ERROR];
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case IDE_Reg::SEC_COUNT:
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return regs[IDE_Reg::SEC_COUNT];
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case IDE_Reg::SEC_NUM:
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return regs[IDE_Reg::SEC_NUM];
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case IDE_Reg::CYL_LOW:
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return regs[IDE_Reg::CYL_LOW];
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case IDE_Reg::CYL_HIGH:
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return regs[IDE_Reg::CYL_HIGH];
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case IDE_Reg::DRIVE_HEAD:
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return regs[IDE_Reg::DRIVE_HEAD];
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case IDE_Reg::STATUS:
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return regs[IDE_Reg::STATUS];
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case IDE_Reg::ALT_STATUS:
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return regs[IDE_Reg::ALT_STATUS];
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case IDE_Reg::TIME_CONFIG:
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return regs[IDE_Reg::TIME_CONFIG];
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default:
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LOG_F(WARNING, "Attempted to read unknown IDE register: %x", reg);
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return 0x0;
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}
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}
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void IdeHardDisk::write(int reg, uint32_t value) {
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switch (reg) {
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case IDE_Reg::IDE_DATA:
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regs[IDE_Reg::IDE_DATA] = value;
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case IDE_Reg::FEATURES:
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regs[IDE_Reg::FEATURES] = value;
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case IDE_Reg::SEC_COUNT:
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regs[IDE_Reg::SEC_COUNT] = value;
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case IDE_Reg::SEC_NUM:
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regs[IDE_Reg::SEC_NUM] = value;
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case IDE_Reg::CYL_LOW:
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regs[IDE_Reg::CYL_LOW] = value;
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case IDE_Reg::CYL_HIGH:
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regs[IDE_Reg::CYL_HIGH] = value;
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case IDE_Reg::DRIVE_HEAD:
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regs[IDE_Reg::DRIVE_HEAD] = value;
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case IDE_Reg::COMMAND:
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LOG_F(0, "Executing COMMAND for IDE: %x", value);
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perform_command(value);
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case IDE_Reg::DEV_CTRL:
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regs[IDE_Reg::DEV_CTRL] = value;
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case IDE_Reg::TIME_CONFIG:
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regs[IDE_Reg::TIME_CONFIG] = value;
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default:
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LOG_F(WARNING, "Attempted to write unknown IDE register: %x", reg);
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}
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}
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void IdeHardDisk::perform_command(uint32_t command) {
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switch (command) {
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case IDE_Cmd::READ_SECTOR:
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LOG_F(WARNING, "Trying to read sector with: %x", command);
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case IDE_Cmd::WRITE_SECTOR:
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LOG_F(WARNING, "Trying to write sector with: %x", command);
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default:
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LOG_F(WARNING, "Attempted to execute IDE command: %x", command);
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}
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} |