219 lines
8.0 KiB
C++
219 lines
8.0 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-24 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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/** @file Constructs a TNT (Power Macintosh 7500, 8500 etc) machine. */
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#include <cpu/ppc/ppcemu.h>
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#include <devices/common/machineid.h>
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#include <devices/common/pci/pcihost.h>
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#include <devices/common/pci/pcidevice.h>
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#include <devices/common/scsi/scsihd.h>
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#include <devices/ioctrl/macio.h>
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#include <devices/memctrl/hammerhead.h>
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#include <loguru.hpp>
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#include <machines/machinebase.h>
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#include <machines/machinefactory.h>
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#include <machines/machineproperties.h>
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#include <string>
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int initialize_tnt(std::string& id)
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{
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LOG_F(INFO, "Building machine TNT...");
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HammerheadCtrl* memctrl_obj;
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PCIHost *pci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("Bandit1"));
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// get (raw) pointer to the I/O controller
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GrandCentral* gc_obj = dynamic_cast<GrandCentral*>(gMachineObj->get_comp_by_name("GrandCentral"));
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// connect GrandCentral I/O controller to the PCI1 bus
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pci_host->pci_register_device(
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DEV_FUN(0x10,0), gc_obj);
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// get video PCI controller object
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PCIHost *vci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("Chaos"));
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if (vci_host) {
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// connect built-in video device to the VCI bus
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vci_host->pci_register_device(
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DEV_FUN(0x0B,0), dynamic_cast<PCIDevice*>(gMachineObj->get_comp_by_name("ControlVideo")));
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}
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// attach IOBus Device #1 0xF301A000
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gMachineObj->add_device("BoardReg1", std::unique_ptr<BoardRegister>(
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new BoardRegister("Board Register 1",
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0x3F | // pull up all PRSNT bits
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((GET_BIN_PROP("emmo") ^ 1) << 8) | // factory tests (active low)
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((gMachineObj->get_comp_by_name_optional("Sixty6Video") == nullptr) << 13) | // composite video out (active low)
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((gMachineObj->get_comp_by_name_optional("MeshTnt") != nullptr) << 14) | // fast SCSI (active high)
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0x8000U // pull up unused bits
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)));
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gc_obj->attach_iodevice(0, dynamic_cast<BoardRegister*>(gMachineObj->get_comp_by_name("BoardReg1")));
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PCIHost *pci2_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name_optional("Bandit2"));
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if (pci2_host) {
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// attach IOBus Device #3 0xF301C000
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gMachineObj->add_device("BoardReg2", std::unique_ptr<BoardRegister>(
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new BoardRegister("Board Register 2",
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0x3F | // pull up all PRSNT bits
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0x8000U // pull up unused bits
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)));
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gc_obj->attach_iodevice(2, dynamic_cast<BoardRegister*>(gMachineObj->get_comp_by_name("BoardReg2")));
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}
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// get (raw) pointer to the memory controller
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memctrl_obj = dynamic_cast<HammerheadCtrl*>(gMachineObj->get_comp_by_name("Hammerhead"));
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memctrl_obj->set_motherboard_id((vci_host ? Hammerhead::MBID_VCI0_PRESENT : 0) | (pci2_host ? Hammerhead::MBID_PCI2_PRESENT : 0));
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memctrl_obj->set_bus_speed(Hammerhead::BUS_SPEED_50_MHZ);
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// allocate ROM region
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if (!memctrl_obj->add_rom_region(0xFFC00000, 0x400000)) {
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LOG_F(ERROR, "Could not allocate ROM region!");
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return -1;
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}
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// plug 16MB RAM DIMM into slot #0
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memctrl_obj->insert_ram_dimm(0, DRAM_CAP_16MB);
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// allocate and map physical RAM
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memctrl_obj->map_phys_ram();
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// init virtual CPU
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std::string cpu = GET_STR_PROP("cpu");
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if (cpu == "604e")
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ppc_cpu_init(memctrl_obj, PPC_VER::MPC604E, false, 12500000ULL);
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else if (cpu == "604")
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ppc_cpu_init(memctrl_obj, PPC_VER::MPC604, false, 12500000ULL);
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else if (cpu == "601")
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ppc_cpu_init(memctrl_obj, PPC_VER::MPC601, true, 7833600ULL);
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else if (cpu == "750") {
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// configure CPU clocks
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uint64_t bus_freq = 50000000ULL;
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uint64_t timebase_freq = bus_freq / 4;
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// initialize virtual CPU and request MPC750 CPU aka G3
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ppc_cpu_init(memctrl_obj, PPC_VER::MPC750, false, timebase_freq);
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// set CPU PLL ratio to 3.5
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ppc_state.spr[SPR::HID1] = 0xE << 28;
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}
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return 0;
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}
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template <uint32_t cpu>
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static const PropMap pm7500_settings = {
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{"rambank1_size",
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new IntProperty(16, vector<uint32_t>({4, 8, 16, 32, 64, 128}))},
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{"rambank2_size",
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new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
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{"rambank3_size",
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new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
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{"rambank4_size",
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new IntProperty( 0, vector<uint32_t>({0, 4, 8, 16, 32, 64, 128}))},
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{"emmo",
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new BinProperty(0)},
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{"cpu",
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new StrProperty(
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cpu == PPC_VER::MPC601 ? "601" :
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cpu == PPC_VER::MPC604 ? "604" :
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cpu == PPC_VER::MPC604E ? "604e" :
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"604e", vector<std::string>({"601", "604", "604e", "750"}))},
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};
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static vector<string> pm7500_devices = {
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"Hammerhead", "Bandit1", "Chaos", "ScsiMesh", "MeshTnt", "GrandCentral", "ControlVideo"
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};
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static vector<string> pm8500_devices = {
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"Hammerhead", "Bandit1", "Chaos", "ScsiMesh", "MeshTnt", "GrandCentral", "ControlVideo", "Sixty6Video"
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};
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static vector<string> pm9500_devices = {
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"Hammerhead", "Bandit1", "Bandit2", "ScsiMesh", "MeshTnt", "GrandCentral"
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};
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static const MachineDescription pm7300_descriptor = {
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.name = "pm7300",
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.description = "Power Macintosh 7300",
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.devices = pm7500_devices,
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.settings = pm7500_settings<PPC_VER::MPC604E>,
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.init_func = &initialize_tnt
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};
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static const MachineDescription pm7500_descriptor = {
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.name = "pm7500",
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.description = "Power Macintosh 7500",
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.devices = pm7500_devices,
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.settings = pm7500_settings<PPC_VER::MPC601>,
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.init_func = &initialize_tnt
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};
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static const MachineDescription pm8500_descriptor = {
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.name = "pm8500",
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.description = "Power Macintosh 8500",
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.devices = pm8500_devices,
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.settings = pm7500_settings<PPC_VER::MPC604>,
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.init_func = &initialize_tnt
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};
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static const MachineDescription pm9500_descriptor = {
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.name = "pm9500",
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.description = "Power Macintosh 9500",
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.devices = pm9500_devices,
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.settings = pm7500_settings<PPC_VER::MPC604>,
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.init_func = &initialize_tnt
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};
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static const MachineDescription pm7600_descriptor = {
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.name = "pm7600",
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.description = "Power Macintosh 7600",
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.devices = pm7500_devices,
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.settings = pm7500_settings<PPC_VER::MPC604E>,
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.init_func = &initialize_tnt
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};
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static const MachineDescription pm8600_descriptor = {
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.name = "pm8600",
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.description = "Power Macintosh 8600",
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.devices = pm8500_devices,
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.settings = pm7500_settings<PPC_VER::MPC604E>,
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.init_func = &initialize_tnt
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};
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static const MachineDescription pm9600_descriptor = {
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.name = "pm9600",
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.description = "Power Macintosh 9600",
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.devices = pm9500_devices,
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.settings = pm7500_settings<PPC_VER::MPC604E>,
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.init_func = &initialize_tnt
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};
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REGISTER_MACHINE(pm7300, pm7300_descriptor);
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REGISTER_MACHINE(pm7500, pm7500_descriptor);
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REGISTER_MACHINE(pm8500, pm8500_descriptor);
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REGISTER_MACHINE(pm9500, pm9500_descriptor);
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REGISTER_MACHINE(pm7600, pm7600_descriptor);
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REGISTER_MACHINE(pm8600, pm8600_descriptor);
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REGISTER_MACHINE(pm9600, pm9600_descriptor);
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