mirror of
https://github.com/dingusdev/dingusppc.git
synced 2024-11-17 15:08:08 +00:00
123 lines
4.2 KiB
C++
123 lines
4.2 KiB
C++
/*
|
|
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 Constructs the Gossamer machine.
|
|
|
|
Author: Max Poliakovski
|
|
*/
|
|
|
|
#include <cpu/ppc/ppcemu.h>
|
|
#include <devices/common/machineid.h>
|
|
#include <devices/floppy/floppyimg.h>
|
|
#include <devices/ioctrl/macio.h>
|
|
#include <devices/memctrl/mpc106.h>
|
|
#include <devices/memctrl/spdram.h>
|
|
#include <devices/sound/soundserver.h>
|
|
#include <devices/video/atirage.h>
|
|
#include <loguru.hpp>
|
|
#include <machines/machinebase.h>
|
|
#include <machines/machineproperties.h>
|
|
|
|
#include <string>
|
|
|
|
|
|
static void setup_ram_slot(std::string name, int i2c_addr, int capacity_megs) {
|
|
if (!capacity_megs)
|
|
return;
|
|
|
|
gMachineObj->add_component(name, new SpdSdram168(i2c_addr));
|
|
SpdSdram168* ram_dimm = dynamic_cast<SpdSdram168*>(gMachineObj->get_comp_by_name(name));
|
|
ram_dimm->set_capacity(capacity_megs);
|
|
|
|
/* register RAM DIMM with the I2C bus */
|
|
I2CBus* i2c_bus = dynamic_cast<I2CBus*>(gMachineObj->get_comp_by_type(HWCompType::I2C_HOST));
|
|
i2c_bus->register_device(i2c_addr, ram_dimm);
|
|
}
|
|
|
|
|
|
int create_gossamer(std::string& id) {
|
|
if (gMachineObj) {
|
|
LOG_F(ERROR, "Global machine object not empty!");
|
|
return -1;
|
|
}
|
|
|
|
LOG_F(INFO, "Initializing the Gossamer hardware...");
|
|
|
|
/* initialize the global machine object */
|
|
gMachineObj.reset(new MachineBase("Gossamer"));
|
|
|
|
/* register MPC106 aka Grackle as memory controller and PCI host */
|
|
gMachineObj->add_component("Grackle", new MPC106);
|
|
gMachineObj->add_alias("Grackle", "PCI_Host");
|
|
|
|
/* get raw pointer to MPC106 object */
|
|
MPC106* grackle_obj = dynamic_cast<MPC106*>(gMachineObj->get_comp_by_name("Grackle"));
|
|
|
|
/* add the machine ID register */
|
|
gMachineObj->add_component("MachineID", new GossamerID(0xBF3D));
|
|
grackle_obj->add_mmio_region(
|
|
0xFF000004, 4096, dynamic_cast<MMIODevice*>(gMachineObj->get_comp_by_name("MachineID")));
|
|
|
|
gMachineObj->add_component("SoundServer", new SoundServer());
|
|
|
|
/* add the Heathrow I/O controller */
|
|
gMachineObj->add_component("Heathrow", new HeathrowIC);
|
|
grackle_obj->pci_register_device(
|
|
16, dynamic_cast<PCIDevice*>(gMachineObj->get_comp_by_name("Heathrow")));
|
|
|
|
/* allocate ROM region */
|
|
if (!grackle_obj->add_rom_region(0xFFC00000, 0x400000)) {
|
|
LOG_F(ERROR, "Could not allocate ROM region!\n");
|
|
return -1;
|
|
}
|
|
|
|
/* configure RAM slots */
|
|
setup_ram_slot("RAM_DIMM_1", 0x57, GET_INT_PROP("rambank1_size"));
|
|
setup_ram_slot("RAM_DIMM_2", 0x56, GET_INT_PROP("rambank2_size"));
|
|
setup_ram_slot("RAM_DIMM_3", 0x55, GET_INT_PROP("rambank3_size"));
|
|
|
|
/* register ATI 3D Rage Pro video card with the PCI host bridge */
|
|
gMachineObj->add_component("ATIRage",
|
|
new ATIRage(ATI_RAGE_PRO_DEV_ID, GET_INT_PROP("gfxmem_size")));
|
|
grackle_obj->pci_register_device(
|
|
18, dynamic_cast<PCIDevice*>(gMachineObj->get_comp_by_name("ATIRage")));
|
|
|
|
/* Init virtual CPU and request MPC750 CPU aka G3 */
|
|
ppc_cpu_init(grackle_obj, PPC_VER::MPC750, 16705000ULL);
|
|
|
|
// post-initialize all devices
|
|
if (gMachineObj->postinit_devices()) {
|
|
LOG_F(ERROR, "Could not post-initialize devices!\n");
|
|
return -1;
|
|
}
|
|
|
|
/* check for a floppy image to be inserted into the virtual superdrive */
|
|
std::string fdd_path = GET_STR_PROP("fdd_img");
|
|
std::string fd_write_prot = GET_STR_PROP("fdd_wr_prot");
|
|
if (!fdd_path.empty()) {
|
|
open_floppy_image(fdd_path);
|
|
}
|
|
|
|
LOG_F(INFO, "Initialization complete.\n");
|
|
|
|
return 0;
|
|
}
|