dingusppc/machines/machinepdm.cpp

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-24 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/>.
*/
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/** @file Construct a PDM-style Power Macintosh machine.
Author: Max Poliakovski
*/
#include <cpu/ppc/ppcemu.h>
#include <devices/common/hwcomponent.h>
#include <devices/common/machineid.h>
#include <devices/common/mmiodevice.h>
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#include <devices/common/scsi/scsi.h>
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#include <devices/common/scsi/scsicdrom.h>
#include <devices/common/scsi/scsihd.h>
#include <devices/memctrl/hmc.h>
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#include <loguru.hpp>
#include <machines/machinebase.h>
#include <machines/machinefactory.h>
#include <machines/machineproperties.h>
#include <string>
#include <vector>
int initialize_pdm(std::string& id)
{
LOG_F(INFO, "Building machine PDM...");
uint16_t machine_id;
// get raw pointer to HMC object
HMC* hmc_obj = dynamic_cast<HMC*>(gMachineObj->get_comp_by_name("HMC"));
if (id == "pm6100") {
machine_id = 0x3011;
} else if (id == "pm7100") {
machine_id = 0x3012;
} else if (id == "pm8100") {
machine_id = 0x3013;
} else {
LOG_F(ERROR, "Unknown machine ID: %s!", id.c_str());
return -1;
}
// create machine ID register
gMachineObj->add_device("MachineID", std::unique_ptr<NubusMacID>(new NubusMacID(machine_id)));
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hmc_obj->add_mmio_region(0x5FFFFFFC, 4,
dynamic_cast<MMIODevice*>(gMachineObj->get_comp_by_name("MachineID")));
// allocate ROM region
if (!hmc_obj->add_rom_region(0x40000000, 0x400000)) {
LOG_F(ERROR, "Could not allocate ROM region!");
return -1;
}
// mirror ROM to 0xFFC00000 for a PowerPC CPU to start
if (!hmc_obj->add_mem_mirror(0xFFC00000, 0x40000000)) {
LOG_F(ERROR, "Could not create ROM mirror!");
return -1;
}
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uint32_t bank_a_size = GET_INT_PROP("rambank1_size");
uint32_t bank_b_size = GET_INT_PROP("rambank2_size");
if (bank_b_size && bank_a_size != bank_b_size) {
LOG_F(ERROR, "rambank1_size and rambank2_size should have equal size");
return -1;
}
if (hmc_obj->install_ram(BANK_SIZE_8MB, bank_a_size << 20, bank_b_size << 20)) {
LOG_F(ERROR, "Failed to allocate RAM!");
return -1;
}
// Init virtual CPU and request MPC601
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ppc_cpu_init(hmc_obj, PPC_VER::MPC601, 7812500ULL);
return 0;
}
// Monitors supported by the PDM on-board video.
// see displayid.cpp for the full list of supported monitor IDs.
static const vector<string> PDMBuiltinMonitorIDs = {
"PortraitGS", "MacRGB12in", "MacRGB15in", "HiRes12-14in", "VGA-SVGA",
"MacRGB16in", "Multiscan15in", "Multiscan17in", "Multiscan20in",
"NotConnected"
};
static const PropMap pm6100_settings = {
{"rambank1_size",
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new IntProperty(0, vector<uint32_t>({0, 2, 4, 8, 16, 32, 64, 128}))},
{"rambank2_size",
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new IntProperty(0, vector<uint32_t>({0, 2, 4, 8, 16, 32, 64, 128}))},
{"mon_id",
new StrProperty("HiRes12-14in", PDMBuiltinMonitorIDs)},
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{"emmo",
new BinProperty(0)},
};
static vector<string> pm6100_devices = {
"HMC", "Amic"
};
static const MachineDescription pm6100_descriptor = {
.name = "pm6100",
.description = "Power Macintosh 6100",
.devices = pm6100_devices,
.settings = pm6100_settings,
.init_func = initialize_pdm
};
// self-registration with the MachineFactory
REGISTER_MACHINE(pm6100, pm6100_descriptor);