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dingusppc/machines/machinetnt.cpp
Maxim Poliakovski bda85a66df machinetnt: populate RAM banks from properties.
2024-07-22 17:45:48 +02:00

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
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/>.
*/
/** @file Constructs a TNT (Power Macintosh 7500, 8500 etc) machine. */
#include <cpu/ppc/ppcemu.h>
#include <devices/common/machineid.h>
#include <devices/common/pci/pcihost.h>
#include <devices/common/pci/pcidevice.h>
#include <devices/common/scsi/scsihd.h>
#include <devices/ioctrl/macio.h>
#include <devices/memctrl/hammerhead.h>
#include <loguru.hpp>
#include <machines/machinebase.h>
#include <machines/machinefactory.h>
#include <machines/machineproperties.h>
#include <string>
int initialize_tnt(std::string& id)
{
LOG_F(INFO, "Building machine TNT...");
HammerheadCtrl* memctrl_obj;
PCIHost *pci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("Bandit1"));
// get (raw) pointer to the I/O controller
GrandCentral* gc_obj = dynamic_cast<GrandCentral*>(gMachineObj->get_comp_by_name("GrandCentral"));
// connect GrandCentral I/O controller to the PCI1 bus
pci_host->pci_register_device(
DEV_FUN(0x10,0), gc_obj);
// get video PCI controller object
PCIHost *vci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("Chaos"));
if (vci_host) {
// connect built-in video device to the VCI bus
vci_host->pci_register_device(
DEV_FUN(0x0B,0), dynamic_cast<PCIDevice*>(gMachineObj->get_comp_by_name("ControlVideo")));
}
// attach IOBus Device #1 0xF301A000
gMachineObj->add_device("BoardReg1", std::unique_ptr<BoardRegister>(
new BoardRegister("Board Register 1",
0x3F | // pull up all PRSNT bits
((GET_BIN_PROP("emmo") ^ 1) << 8) | // factory tests (active low)
((gMachineObj->get_comp_by_name_optional("Sixty6Video") == nullptr) << 13) | // composite video out (active low)
((gMachineObj->get_comp_by_name_optional("MeshTnt") != nullptr) << 14) | // fast SCSI (active high)
0x8000U // pull up unused bits
)));
gc_obj->attach_iodevice(0, dynamic_cast<BoardRegister*>(gMachineObj->get_comp_by_name("BoardReg1")));
PCIHost *pci2_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name_optional("Bandit2"));
if (pci2_host) {
// attach IOBus Device #3 0xF301C000
gMachineObj->add_device("BoardReg2", std::unique_ptr<BoardRegister>(
new BoardRegister("Board Register 2",
0x3F | // pull up all PRSNT bits
0x8000U // pull up unused bits
)));
gc_obj->attach_iodevice(2, dynamic_cast<BoardRegister*>(gMachineObj->get_comp_by_name("BoardReg2")));
}
// get (raw) pointer to the memory controller
memctrl_obj = dynamic_cast<HammerheadCtrl*>(gMachineObj->get_comp_by_name("Hammerhead"));
memctrl_obj->set_motherboard_id((vci_host ? Hammerhead::MBID_VCI0_PRESENT : 0) |
(pci2_host ? Hammerhead::MBID_PCI2_PRESENT : 0));
memctrl_obj->set_bus_speed(Hammerhead::BUS_SPEED_50_MHZ);
// allocate ROM region
if (!memctrl_obj->add_rom_region(0xFFC00000, 0x400000)) {
LOG_F(ERROR, "Could not allocate ROM region!");
return -1;
}
// populate RAM banks from configuration properties
for (int bank_num = 0; bank_num <= 3; bank_num++) {
std::string bn = {char('1' + bank_num)};
int bank_size = GET_INT_PROP("rambank" + bn + "_size");
if (bank_size)
memctrl_obj->insert_ram_dimm(bank_num, bank_size * DRAM_CAP_1MB);
}
// allocate and map physical RAM
memctrl_obj->map_phys_ram();
// init virtual CPU
std::string cpu = GET_STR_PROP("cpu");
if (cpu == "604e")
ppc_cpu_init(memctrl_obj, PPC_VER::MPC604E, false, 12500000ULL);
else if (cpu == "604")
ppc_cpu_init(memctrl_obj, PPC_VER::MPC604, false, 12500000ULL);
else if (cpu == "601")
ppc_cpu_init(memctrl_obj, PPC_VER::MPC601, true, 7833600ULL);
else if (cpu == "750") {
// configure CPU clocks
uint64_t bus_freq = 50000000ULL;
uint64_t timebase_freq = bus_freq / 4;
// initialize virtual CPU and request MPC750 CPU aka G3
ppc_cpu_init(memctrl_obj, PPC_VER::MPC750, false, timebase_freq);
// set CPU PLL ratio to 3.5
ppc_state.spr[SPR::HID1] = 0xE << 28;
}
return 0;
}
template <uint32_t cpu>
static const PropMap pm7500_settings = {
{"rambank1_size",
new IntProperty(16, vector<uint32_t>({4, 8, 16, 32, 64, 128}))},
{"rambank2_size",
new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
{"rambank3_size",
new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
{"rambank4_size",
new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
{"emmo",
new BinProperty(0)},
{"cpu",
new StrProperty(
cpu == PPC_VER::MPC601 ? "601" :
cpu == PPC_VER::MPC604 ? "604" :
cpu == PPC_VER::MPC604E ? "604e" :
"604e", vector<std::string>({"601", "604", "604e", "750"})
)
},
};
static vector<string> pm7500_devices = {
"Hammerhead", "Bandit1", "Chaos", "ScsiMesh", "MeshTnt", "GrandCentral",
"ControlVideo"
};
static vector<string> pm8500_devices = {
"Hammerhead", "Bandit1", "Chaos", "ScsiMesh", "MeshTnt", "GrandCentral",
"ControlVideo", "Sixty6Video"
};
static vector<string> pm9500_devices = {
"Hammerhead", "Bandit1", "Bandit2", "ScsiMesh", "MeshTnt", "GrandCentral"
};
static const MachineDescription pm7300_descriptor = {
.name = "pm7300",
.description = "Power Macintosh 7300",
.devices = pm7500_devices,
.settings = pm7500_settings<PPC_VER::MPC604E>,
.init_func = &initialize_tnt
};
static const MachineDescription pm7500_descriptor = {
.name = "pm7500",
.description = "Power Macintosh 7500",
.devices = pm7500_devices,
.settings = pm7500_settings<PPC_VER::MPC601>,
.init_func = &initialize_tnt
};
static const MachineDescription pm8500_descriptor = {
.name = "pm8500",
.description = "Power Macintosh 8500",
.devices = pm8500_devices,
.settings = pm7500_settings<PPC_VER::MPC604>,
.init_func = &initialize_tnt
};
static const MachineDescription pm9500_descriptor = {
.name = "pm9500",
.description = "Power Macintosh 9500",
.devices = pm9500_devices,
.settings = pm7500_settings<PPC_VER::MPC604>,
.init_func = &initialize_tnt
};
static const MachineDescription pm7600_descriptor = {
.name = "pm7600",
.description = "Power Macintosh 7600",
.devices = pm7500_devices,
.settings = pm7500_settings<PPC_VER::MPC604E>,
.init_func = &initialize_tnt
};
static const MachineDescription pm8600_descriptor = {
.name = "pm8600",
.description = "Power Macintosh 8600",
.devices = pm8500_devices,
.settings = pm7500_settings<PPC_VER::MPC604E>,
.init_func = &initialize_tnt
};
static const MachineDescription pm9600_descriptor = {
.name = "pm9600",
.description = "Power Macintosh 9600",
.devices = pm9500_devices,
.settings = pm7500_settings<PPC_VER::MPC604E>,
.init_func = &initialize_tnt
};
REGISTER_MACHINE(pm7300, pm7300_descriptor);
REGISTER_MACHINE(pm7500, pm7500_descriptor);
REGISTER_MACHINE(pm8500, pm8500_descriptor);
REGISTER_MACHINE(pm9500, pm9500_descriptor);
REGISTER_MACHINE(pm7600, pm7600_descriptor);
REGISTER_MACHINE(pm8600, pm8600_descriptor);
REGISTER_MACHINE(pm9600, pm9600_descriptor);
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