dingusppc/devices/common/ata/atabasedevice.h
2022-12-08 00:16:10 +01:00

65 lines
1.8 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 Base class for ATA devices. */
#ifndef ATA_BASE_DEVICE_H
#define ATA_BASE_DEVICE_H
#include <devices/common/ata/atadefs.h>
#include <devices/common/hwcomponent.h>
#include <cinttypes>
class AtaBaseDevice : public HWComponent, public AtaInterface
{
public:
AtaBaseDevice(const std::string name);
~AtaBaseDevice() = default;
uint16_t read(const uint8_t reg_addr);
void write(const uint8_t reg_addr, const uint16_t value);
virtual int perform_command() = 0;
void device_reset();
private:
bool is_selected() { return ((this->r_dev_head >> 4) & 1) == this->my_dev_id; };
protected:
uint8_t my_dev_id = 0; // my IDE device ID configured by the host
// IDE aka task file registers
uint8_t r_error;
uint8_t r_features;
uint8_t r_sect_count;
uint8_t r_sect_num;
uint8_t r_cylinder_lo;
uint8_t r_cylinder_hi;
uint8_t r_dev_head;
uint8_t r_command;
uint8_t r_status;
uint8_t r_dev_ctrl;
};
#endif // ATA_BASE_DEVICE_H