mirror of
https://github.com/dingusdev/dingusppc.git
synced 2024-11-18 22:05:51 +00:00
120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
/*
|
|
DingusPPC - The Experimental PowerPC Macintosh emulator
|
|
Copyright (C) 2018-22 divingkatae and maximum
|
|
(theweirdo) spatium
|
|
|
|
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
|
|
|
|
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 3 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.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/** @file Generic SCSI Hard Disk emulation. */
|
|
|
|
#include <devices/deviceregistry.h>
|
|
#include <devices/common/scsi/scsi_hd.h>
|
|
#include <machines/machinebase.h>
|
|
#include <machines/machineproperties.h>
|
|
#include <loguru.hpp>
|
|
|
|
#include <fstream>
|
|
#include <limits>
|
|
#include <stdio.h>
|
|
|
|
#define sector_size 512
|
|
|
|
using namespace std;
|
|
|
|
ScsiHardDisk::ScsiHardDisk() {
|
|
supports_types(HWCompType::SCSI_DEV);
|
|
|
|
std::string hd_image_path = GET_STR_PROP("hdd_img");
|
|
|
|
//We don't want to store everything in memory, but
|
|
//we want to keep the hard disk available.
|
|
this->hdd_img.open(hd_image_path, ios::out | ios::in | ios::binary);
|
|
|
|
// Taken from:
|
|
// https://stackoverflow.com/questions/22984956/tellg-function-give-wrong-size-of-file/22986486
|
|
this->hdd_img.ignore(std::numeric_limits<std::streamsize>::max());
|
|
this->img_size = this->hdd_img.gcount();
|
|
this->hdd_img.clear(); // Since ignore will have set eof.
|
|
this->hdd_img.seekg(0, std::ios_base::beg);
|
|
}
|
|
|
|
void ScsiHardDisk::notify(ScsiMsg msg_type, int param)
|
|
{
|
|
LOG_F(INFO, "SCSI_HD: message of type %d received", msg_type);
|
|
}
|
|
|
|
int ScsiHardDisk::test_unit_ready() {
|
|
return 0x0;
|
|
}
|
|
|
|
int ScsiHardDisk::req_sense(uint8_t alloc_len) {
|
|
if (alloc_len != 252) {
|
|
LOG_F(WARNING, "Inappropriate Allocation Length: %%d", alloc_len);
|
|
}
|
|
return ScsiError::NO_ERROR; // placeholder - no sense
|
|
}
|
|
|
|
int ScsiHardDisk::inquiry() {
|
|
return 0x1000000F;
|
|
}
|
|
|
|
int ScsiHardDisk::send_diagnostic() {
|
|
return 0x0;
|
|
}
|
|
|
|
int ScsiHardDisk::mode_select() {
|
|
return 0x0;
|
|
}
|
|
|
|
uint64_t ScsiHardDisk::read_capacity_10() {
|
|
return this->img_size;
|
|
}
|
|
|
|
void ScsiHardDisk::format() {
|
|
}
|
|
|
|
void ScsiHardDisk::read(uint32_t lba, uint16_t transfer_len) {
|
|
uint32_t transfer_size = (transfer_len == 0) ? 256 : transfer_len;
|
|
transfer_size *= sector_size;
|
|
uint32_t device_offset = lba * sector_size;
|
|
|
|
this->hdd_img.seekg(device_offset, this->hdd_img.beg);
|
|
this->hdd_img.read(img_buffer, transfer_size);
|
|
}
|
|
|
|
void ScsiHardDisk::write(uint32_t lba, uint16_t transfer_len) {
|
|
uint32_t transfer_size = (transfer_len == 0) ? 256 : transfer_len;
|
|
transfer_size *= sector_size;
|
|
uint32_t device_offset = lba * sector_size;
|
|
|
|
this->hdd_img.seekg(device_offset, this->hdd_img.beg);
|
|
this->hdd_img.write((char*)&img_buffer, transfer_size);
|
|
|
|
}
|
|
|
|
void ScsiHardDisk::seek(uint32_t lba) {
|
|
this->hdd_img.seekg(0, this->hdd_img.beg);
|
|
}
|
|
|
|
void ScsiHardDisk::rewind() {
|
|
this->hdd_img.seekg(0, this->hdd_img.beg);
|
|
}
|
|
|
|
static const PropMap SCSI_HD_Properties = {
|
|
{"hdd_img", new StrProperty("")},
|
|
{"hdd_wr_prot", new BinProperty(0)},
|
|
}; |