machinepippin.cpp

/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-26 The DingusPPC Development Team
          (See CREDITS.MD for more details)

(You may also contact divingkxt or powermax2286 on Discord)

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 Bandai/Atmark Pippin emulation. */

/**
    Kudos to Keith Kaisershot @ blitter.net for his precious technical help!
*/

#include <cpu/ppc/ppcemu.h>
#include <devices/common/pci/pcihost.h>
#include <devices/deviceregistry.h>
#include <devices/ioctrl/macio.h>
#include <devices/memctrl/aspen.h>
#include <machines/machine.h>
#include <machines/machinebase.h>
#include <machines/machinefactory.h>
#include <loguru.hpp>

static std::vector<PciIrqMap> aspen_irq_map = {
//  {nullptr , DEV_FUN(0x0B,0), IntSrc::BANDIT1 },
//  {"pci_A1", DEV_FUN(0x0D,0), IntSrc::PCI_A   },
    {"pci_B1", DEV_FUN(0x0E,0), IntSrc::PIPPIN_E},
    {"pci_C1", DEV_FUN(0x0F,0), IntSrc::PIPPIN_F},
    {nullptr , DEV_FUN(0x10,0),                 }, // GrandCentral
};

class MachinePippin : public Machine {
public:
    int initialize(const std::string &id);
};

int MachinePippin::initialize(const std::string &id) {
    LOG_F(INFO, "Building machine Pippin...");

    PCIHost *pci_host = dynamic_cast<PCIHost*>(gMachineObj->get_comp_by_name("AspenPci1"));
    pci_host->set_irq_map(aspen_irq_map);

    // connect GrandCentral I/O controller to the PCI1 bus
    pci_host->pci_register_device(DEV_FUN(0x10,0),
        dynamic_cast<GrandCentral*>(gMachineObj->get_comp_by_name("GrandCentralTnt")));

    // get (raw) pointer to the memory controller
    AspenCtrl* aspen_obj = dynamic_cast<AspenCtrl*>(gMachineObj->get_comp_by_name("Aspen"));

    // allocate ROM region
    if (!aspen_obj->add_rom_region(0xFFC00000, 0x400000)) {
        LOG_F(ERROR, "Could not allocate ROM region!");
        return -1;
    }

    // configure RAM
    aspen_obj->insert_ram_dimm(0, GET_INT_PROP("rambank1_size")); // soldered onboard RAM
    aspen_obj->insert_ram_dimm(1, GET_INT_PROP("rambank2_size")); // soldered onboard RAM
    aspen_obj->insert_ram_dimm(2, GET_INT_PROP("rambank3_size")); // RAM expansion slot
    aspen_obj->insert_ram_dimm(3, GET_INT_PROP("rambank4_size")); // RAM expansion slot

    // init virtual CPU
    ppc_cpu_init(aspen_obj, PPC_VER::MPC603, false, 16500000ULL);

    return 0;
}

static const PropMap Pippin_settings = {
    {"rambank1_size",
        new IntProperty(4, std::vector<uint32_t>({4}))}, // fixed size
    {"rambank2_size",
        new IntProperty(1, std::vector<uint32_t>({1}))}, // fixed size
    {"rambank3_size",
        new IntProperty(0, std::vector<uint32_t>({0, 1, 4, 8, 16}))},
    {"rambank4_size",
        new IntProperty(0, std::vector<uint32_t>({0, 1, 4, 8, 16}))},
    {"emmo",
        new BinProperty(0)},
    {"adb_devices",
        new StrProperty("AppleJack,Keyboard")},
};

static std::vector<std::string> Pippin_devices = {
    "Aspen", "AspenPci1", "GrandCentralTnt", "TaosVideo"
};

static const DeviceDescription MachinePippin_descriptor = {
    Machine::create<MachinePippin>, Pippin_devices, Pippin_settings
};

REGISTER_DEVICE(MachinePippin, MachinePippin_descriptor);

static const MachineDescription Pippin_Descriptor = {
    .name = "pippin",
    .description = "Bandai Pippin",
    .machine_root = "MachinePippin",
};

REGISTER_MACHINE(pippin, Pippin_Descriptor);