mirror of
https://github.com/dingusdev/dingusppc.git
synced 2024-09-01 02:29:04 +00:00
104 lines
2.7 KiB
C++
104 lines
2.7 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 ATA hard drive support */
|
|
|
|
#ifndef IDE_HD_H
|
|
#define IDE_HD_H
|
|
|
|
#include <devices/common/hwcomponent.h>
|
|
#include <cinttypes>
|
|
#include <fstream>
|
|
#include <memory>
|
|
#include <stdio.h>
|
|
#include <string>
|
|
|
|
#define SEC_SIZE 512
|
|
|
|
using namespace std;
|
|
|
|
/** IDE register offsets. */
|
|
enum IDE_Reg : int {
|
|
IDE_DATA = 0x0,
|
|
ERROR = 0x1, // error (read)
|
|
FEATURES = 0x1, // features (write)
|
|
SEC_COUNT = 0x2, // sector count
|
|
SEC_NUM = 0x3, // sector number
|
|
CYL_LOW = 0x4, // cylinder low
|
|
CYL_HIGH = 0x5, // cylinder high
|
|
DRIVE_HEAD = 0x6, // drive/head
|
|
STATUS = 0x7, // status (read)
|
|
COMMAND = 0x7, // command (write)
|
|
ALT_STATUS = 0x16, // alt status (read)
|
|
DEV_CTRL = 0x16, // device control (write)
|
|
TIME_CONFIG = 0x20
|
|
};
|
|
|
|
enum IDE_Status : int {
|
|
ERR = 0x1,
|
|
IDX = 0x2,
|
|
CORR = 0x4,
|
|
DRQ = 0x8,
|
|
DSC = 0x10,
|
|
DWF = 0x20,
|
|
DRDY = 0x40,
|
|
BSY = 0x80
|
|
};
|
|
|
|
/** Heath IDE commands. */
|
|
enum IDE_Cmd : int {
|
|
IDE_NOP = 0x00,
|
|
RESET_ATAPI = 0x08,
|
|
RECALIBRATE = 0x10,
|
|
READ_SECTOR = 0x20,
|
|
READ_LONG = 0x22,
|
|
WRITE_SECTOR = 0x30,
|
|
WRITE_LONG = 0x32,
|
|
WRITE_VERIFY = 0x40,
|
|
FORMAT_TRACKS = 0x50,
|
|
DIAGNOSTICS = 0x90,
|
|
READ_DMA = 0xC8,
|
|
WRITE_DMA = 0xCA,
|
|
};
|
|
|
|
class IdeHardDisk : public HWComponent {
|
|
public:
|
|
IdeHardDisk();
|
|
~IdeHardDisk() = default;
|
|
|
|
static std::unique_ptr<HWComponent> create() {
|
|
return std::unique_ptr<IdeHardDisk>(new IdeHardDisk());
|
|
}
|
|
|
|
void insert_image(std::string filename);
|
|
uint32_t read(int reg);
|
|
void write(int reg, uint32_t value);
|
|
|
|
void perform_command(uint32_t command);
|
|
|
|
private:
|
|
std::fstream hdd_img;
|
|
uint64_t img_size;
|
|
uint32_t regs[33];
|
|
uint8_t buffer[SEC_SIZE];
|
|
};
|
|
|
|
#endif |