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xqemu/hw/xbox/xbox.c
Matt Borgerson 24c056aeb8 Add networking support 
This patch adds basic networking capabilities to XQEMU. Currently the
emulation is not exactly hardware-accurate, but is functional enough
for basic packet tx/rx with both the official Microsoft Xbox networking
libraries and NXDK networking libraries.
2016-01-17 13:31:36 -07:00

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/*
* QEMU Xbox System Emulator
*
* Copyright (c) 2012 espes
*
* Based on pc.c
* Copyright (c) 2003-2004 Fabrice Bellard
*
* 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 2 or
* (at your option) version 3 of the License.
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include "hw/hw.h"
#include "sysemu/arch_init.h"
#include "hw/i386/pc.h"
#include "hw/pci/pci.h"
#include "hw/boards.h"
#include "hw/ide.h"
#include "hw/timer/mc146818rtc.h"
#include "hw/timer/i8254.h"
#include "hw/audio/pcspk.h"
#include "sysemu/sysemu.h"
#include "hw/cpu/icc_bus.h"
#include "hw/sysbus.h"
#include "hw/i2c/smbus.h"
#include "sysemu/blockdev.h"
#include "hw/loader.h"
#include "exec/address-spaces.h"
#include "hw/xbox/xbox_pci.h"
#include "hw/xbox/nv2a.h"
#include "hw/xbox/xbox.h"
#include "net/net.h"
/* mostly from pc_memory_init */
static void xbox_memory_init(MemoryRegion *system_memory,
ram_addr_t mem_size,
MemoryRegion *rom_memory,
MemoryRegion **ram_memory)
{
MemoryRegion *ram;
int ret;
char *filename;
int bios_size;
MemoryRegion *bios;
MemoryRegion *map_bios;
uint32_t map_loc;
/* Allocate RAM. We allocate it as a single memory region and use
* aliases to address portions of it, mostly for backwards compatibility
* with older qemus that used qemu_ram_alloc().
*/
ram = g_malloc(sizeof(*ram));
memory_region_init_ram(ram, NULL, "xbox.ram", mem_size);
vmstate_register_ram_global(ram);
*ram_memory = ram;
memory_region_add_subregion(system_memory, 0, ram);
/* Load the bios. (mostly from pc_sysfw)
* Can't use it verbatim, since we need the bios repeated
* over top 1MB of memory.
*/
if (bios_name == NULL) {
bios_name = "bios.bin";
}
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (filename) {
bios_size = get_image_size(filename);
} else {
bios_size = -1;
}
if (bios_size <= 0 ||
(bios_size % 65536) != 0) {
goto bios_error;
}
bios = g_malloc(sizeof(*bios));
memory_region_init_ram(bios, NULL, "xbox.bios", bios_size);
vmstate_register_ram_global(bios);
memory_region_set_readonly(bios, true);
ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size), -1);
if (ret != 0) {
bios_error:
fprintf(stderr, "qemu: could not load xbox BIOS '%s'\n", bios_name);
exit(1);
}
if (filename) {
g_free(filename);
}
/* map the bios repeated at the top of memory */
for (map_loc=(uint32_t)(-bios_size); map_loc >= 0xff000000; map_loc-=bios_size) {
map_bios = g_malloc(sizeof(*map_bios));
memory_region_init_alias(map_bios, NULL, NULL, bios, 0, bios_size);
memory_region_add_subregion(rom_memory, map_loc, map_bios);
memory_region_set_readonly(map_bios, true);
}
/*memory_region_add_subregion(rom_memory,
(uint32_t)(-bios_size),
bios);
*/
}
/* mostly from pc_init1 */
void xbox_init_common(QEMUMachineInitArgs *args,
const uint8_t *default_eeprom,
ISABus **out_isa_bus)
{
int i;
ram_addr_t ram_size = args->ram_size;
const char *cpu_model = args->cpu_model;
PCIBus *host_bus;
ISABus *isa_bus;
MemoryRegion *ram_memory;
MemoryRegion *pci_memory;
qemu_irq *cpu_irq;
qemu_irq *gsi;
qemu_irq *i8259;
GSIState *gsi_state;
PCIDevice *ide_dev;
BusState *idebus[MAX_IDE_BUS];
ISADevice *rtc_state;
ISADevice *pit;
i2c_bus *smbus;
PCIBus *agp_bus;
DeviceState *icc_bridge;
icc_bridge = qdev_create(NULL, TYPE_ICC_BRIDGE);
object_property_add_child(qdev_get_machine(), "icc-bridge",
OBJECT(icc_bridge), NULL);
pc_cpus_init(cpu_model, icc_bridge);
pci_memory = g_new(MemoryRegion, 1);
memory_region_init(pci_memory, NULL, "pci", INT64_MAX);
/* allocate ram and load rom/bios */
xbox_memory_init(get_system_memory(), ram_size,
pci_memory, &ram_memory);
gsi_state = g_malloc0(sizeof(*gsi_state));
gsi = qemu_allocate_irqs(gsi_handler, gsi_state, GSI_NUM_PINS);
/* init buses */
xbox_pci_init(gsi,
get_system_memory(), get_system_io(),
pci_memory, ram_memory,
&host_bus,
&isa_bus,
&smbus,
&agp_bus);
/* irq shit */
isa_bus_irqs(isa_bus, gsi);
cpu_irq = pc_allocate_cpu_irq();
i8259 = i8259_init(isa_bus, cpu_irq[0]);
for (i = 0; i < ISA_NUM_IRQS; i++) {
gsi_state->i8259_irq[i] = i8259[i];
}
/* basic device init */
rtc_state = rtc_init(isa_bus, 2000, NULL);
pit = pit_init(isa_bus, 0x40, 0, NULL);
/* does apparently have a pc speaker, though not used? */
pcspk_init(isa_bus, pit);
/* IDE shit
* piix3's ide be right for now, maybe
*/
DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
ide_drive_get(hd, MAX_IDE_BUS);
ide_dev = pci_piix3_ide_init(host_bus, hd, PCI_DEVFN(9, 0));
idebus[0] = qdev_get_child_bus(&ide_dev->qdev, "ide.0");
idebus[1] = qdev_get_child_bus(&ide_dev->qdev, "ide.1");
// xbox bios wants this bit pattern set to mark the data as valid
uint8_t bits = 0x55;
for (i = 0x10; i < 0x70; i++) {
rtc_set_memory(rtc_state, i, bits);
bits = ~bits;
}
bits = 0x55;
for (i = 0x80; i < 0x100; i++) {
rtc_set_memory(rtc_state, i, bits);
bits = ~bits;
}
/* smbus devices */
uint8_t *eeprom_buf = g_malloc0(256);
memcpy(eeprom_buf, default_eeprom, 256);
smbus_eeprom_init_single(smbus, 0x54, eeprom_buf);
smbus_xbox_smc_init(smbus, 0x10);
smbus_cx25871_init(smbus, 0x45);
smbus_adm1032_init(smbus, 0x4c);
/* USB */
PCIDevice *usb1 = pci_create(host_bus, PCI_DEVFN(3, 0), "pci-ohci");
qdev_prop_set_uint32(&usb1->qdev, "num-ports", 4);
qdev_init_nofail(&usb1->qdev);
PCIDevice *usb0 = pci_create(host_bus, PCI_DEVFN(2, 0), "pci-ohci");
qdev_prop_set_uint32(&usb0->qdev, "num-ports", 4);
qdev_init_nofail(&usb0->qdev);
/* Ethernet! */
PCIDevice *nvnet = pci_create(host_bus, PCI_DEVFN(4, 0), "nvnet");
for (i = 0; i < nb_nics; i++) {
NICInfo *nd = &nd_table[i];
qemu_check_nic_model(nd, "nvnet");
qdev_set_nic_properties(&nvnet->qdev, nd);
qdev_init_nofail(&nvnet->qdev);
}
/* APU! */
PCIDevice *apu = pci_create_simple(host_bus, PCI_DEVFN(5, 0), "mcpx-apu");
/* ACI! */
PCIDevice *aci = pci_create_simple(host_bus, PCI_DEVFN(6, 0), "mcpx-aci");
/* GPU! */
nv2a_init(agp_bus, PCI_DEVFN(0, 0), ram_memory);
*out_isa_bus = isa_bus;
}
static void xbox_init(QEMUMachineInitArgs *args)
{
#if 0
/* Placeholder blank eeprom for xbox 1.0:
* Serial number 000000000000
* Mac address 00:00:00:00:00:00
* ...etc.
*/
const uint8_t eeprom[] = {
0x25, 0x42, 0x88, 0x24, 0xA3, 0x1A, 0x7D, 0xF4,
0xEE, 0x53, 0x3F, 0x39, 0x5D, 0x27, 0x98, 0x0E,
0x58, 0xB3, 0x26, 0xC3, 0x70, 0x82, 0xE5, 0xC6,
0xF7, 0xC5, 0x54, 0x38, 0xA0, 0x58, 0xB9, 0x5D,
0xB7, 0x27, 0xC7, 0xB1, 0x67, 0xCF, 0x99, 0x3E,
0xC8, 0x6E, 0xC8, 0x53, 0xEF, 0x7C, 0x01, 0x37,
0x6F, 0x6E, 0x2F, 0x6F, 0x30, 0x30, 0x30, 0x30,
0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
#endif
/* bunnie's eeprom */
const uint8_t eeprom[] = {
0xe3, 0x1c, 0x5c, 0x23, 0x6a, 0x58, 0x68, 0x37,
0xb7, 0x12, 0x26, 0x6c, 0x99, 0x11, 0x30, 0xd1,
0xe2, 0x3e, 0x4d, 0x56, 0xf7, 0x73, 0x2b, 0x73,
0x85, 0xfe, 0x7f, 0x0a, 0x08, 0xef, 0x15, 0x3c,
0x77, 0xee, 0x6d, 0x4e, 0x93, 0x2f, 0x28, 0xee,
0xf8, 0x61, 0xf7, 0x94, 0x17, 0x1f, 0xfc, 0x11,
0x0b, 0x84, 0x44, 0xed, 0x31, 0x30, 0x35, 0x35,
0x38, 0x31, 0x31, 0x31, 0x34, 0x30, 0x30, 0x33,
0x00, 0x50, 0xf2, 0x4f, 0x65, 0x52, 0x00, 0x00,
0x0a, 0x1e, 0x35, 0x33, 0x71, 0x85, 0x31, 0x4d,
0x59, 0x12, 0x38, 0x48, 0x1c, 0x91, 0x53, 0x60,
0x00, 0x01, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00,
0x75, 0x61, 0x57, 0xfb, 0x2c, 0x01, 0x00, 0x00,
0x45, 0x53, 0x54, 0x00, 0x45, 0x44, 0x54, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0a, 0x05, 0x00, 0x02, 0x04, 0x01, 0x00, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xc4, 0xff, 0xff, 0xff,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
ISABus *isa_bus;
xbox_init_common(args, eeprom, &isa_bus);
}
static QEMUMachine xbox_machine = {
.name = "xbox",
.desc = "Microsoft Xbox",
.init = xbox_init,
.max_cpus = 1,
.no_floppy = 1,
.no_cdrom = 1,
.no_sdcard = 1,
PC_DEFAULT_MACHINE_OPTIONS
};
static void xbox_machine_init(void) {
qemu_register_machine(&xbox_machine);
}
machine_init(xbox_machine_init);
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