dingusppc/devices/floppy/superdrive.cpp

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2021-12-12 20:40:04 +00:00
/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-21 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 Macintosh Superdrive emulation. */
#include "superdrive.h"
#include <loguru.hpp>
#include <cinttypes>
using namespace MacSuperdrive;
MacSuperDrive::MacSuperDrive()
{
this->media_kind = MediaKind::high_density;
}
void MacSuperDrive::command(uint8_t addr, uint8_t value)
{
LOG_F(9, "Superdrive: command addr=0x%X, value=%d", addr, value);
switch(addr) {
case CommandAddr::Motor_On_Off:
if (value) {
LOG_F(INFO, "Superdrive: turn spindle motor off");
} else {
LOG_F(INFO, "Superdrive: turn spindle motor on");
}
break;
default:
LOG_F(WARNING, "Superdrive: unimplemented command, addr=0x%X", addr);
}
}
uint8_t MacSuperDrive::status(uint8_t addr)
{
LOG_F(9, "Superdrive: status request, addr = 0x%X", addr);
switch(addr) {
case StatusAddr::MFM_Support:
return 1; // Superdrive does support MFM encoding scheme
case StatusAddr::Double_Sided:
return 1; // yes, Superdrive is double sided
case StatusAddr::Drive_Exists:
return 0; // tell the world I'm here
case StatusAddr::Media_Kind:
return this->media_kind;
default:
LOG_F(WARNING, "Superdrive: unimplemented status request, addr=0x%X", addr);
return 0;
}
}