mirror of https://github.com/xemu-project/xemu.git
initial chihiro stuff :D
This commit is contained in:
espes
parent
11462f95e6
commit
6ec5ad1698
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@ -17,7 +17,7 @@ obj-y := $(addprefix ../,$(obj-y))
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obj-y += multiboot.o smbios.o
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obj-y += pc.o pc_piix.o pc_q35.o
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obj-$(CONFIG_XBOX) += xbox.o
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obj-$(CONFIG_XBOX) += xbox.o chihiro.o
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obj-$(CONFIG_XEN) += xen_domainbuild.o xen_machine_pv.o
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obj-y += kvmvapic.o
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@ -0,0 +1,286 @@
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/*
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* QEMU Chihiro emulation
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*
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* Copyright (c) 2013 espes
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 or
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* (at your option) version 3 of the License.
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*
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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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*
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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 <http://www.gnu.org/licenses/>.
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*/
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#include "hw/hw.h"
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#include "hw/boards.h"
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#include "hw/ide.h"
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#include "hw/loader.h"
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#include "hw/isa.h"
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#include "exec/memory.h"
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#include "qemu/config-file.h"
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#include "sysemu/blockdev.h"
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#include "block/blkmemory.h"
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#include "hw/xbox.h"
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#define SEGA_CHIP_REVISION 0xF0
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# define SEGA_CHIP_REVISION_CHIP_ID 0xFF00
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# define SEGA_CHIP_REVISION_FPGA_CHIP_ID 0x0000
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# define SEGA_CHIP_REVISION_ASIC_CHIP_ID 0x0100
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# define SEGA_CHIP_REVISION_REVISION_ID_MASK 0x00FF
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#define SEGA_DIMM_SIZE 0xF4
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# define SEGA_DIMM_SIZE_128M 0
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# define SEGA_DIMM_SIZE_256M 1
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# define SEGA_DIMM_SIZE_512M 2
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# define SEGA_DIMM_SIZE_1024M 3
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typedef struct ChihiroLPCState {
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ISADevice dev;
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MemoryRegion ioport;
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} ChihiroLPCState;
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#define CHIHIRO_LPC_DEVICE(obj) \
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OBJECT_CHECK(ChihiroLPCState, (obj), "chihiro-lpc")
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static uint64_t chhiro_lpc_io_read(void *opaque, hwaddr addr,
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unsigned size)
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{
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uint64_t r = 0;
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switch (addr) {
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case SEGA_CHIP_REVISION:
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r = SEGA_CHIP_REVISION_ASIC_CHIP_ID;
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break;
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case SEGA_DIMM_SIZE:
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r = SEGA_DIMM_SIZE_128M;
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break;
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}
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return r;
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}
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static void chhiro_lpc_io_write(void *opaque, hwaddr addr, uint64_t val,
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unsigned size)
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{
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}
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static const MemoryRegionOps chihiro_lpc_io_ops = {
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.read = chhiro_lpc_io_read,
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.write = chhiro_lpc_io_write,
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.impl = {
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.min_access_size = 2,
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.max_access_size = 2,
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},
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};
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static int chihiro_lpc_initfn(ISADevice *dev)
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{
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ChihiroLPCState *s = CHIHIRO_LPC_DEVICE(dev);
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memory_region_init_io(&s->ioport, &chihiro_lpc_io_ops, s,
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"chihiro-lpc-io", 0x100);
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isa_register_ioport(dev, &s->ioport, 0x4000);
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return 0;
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}
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static void chihiro_lpc_class_initfn(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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ISADeviceClass *ic = ISA_DEVICE_CLASS(klass);
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ic->init = chihiro_lpc_initfn;
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dc->desc = "Chihiro LPC";
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}
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static const TypeInfo chihiro_lpc_info = {
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.name = "chihiro-lpc",
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.parent = TYPE_ISA_DEVICE,
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.instance_size = sizeof(ChihiroLPCState),
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.class_init = chihiro_lpc_class_initfn,
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};
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static void chihiro_register_types(void)
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{
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type_register_static(&chihiro_lpc_info);
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}
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type_init(chihiro_register_types)
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/* The chihiro baseboard communicates with the xbox by acting as an IDE
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* device. The device maps the boot rom from the mediaboard, a communication
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* area for interfacing with the network board, and the ram on the baseboard.
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* The baseboard ram is populated at boot from the gd-rom drive on the
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* mediaboard containing something like a combined disc+hdd image.
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*/
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#define FILESYSTEM_START 0
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#define ROM_START 0x8000000
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#define ROM_SECTORS 0x2000
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#define COMMUNICATION_START 0x9000000
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#define COMMUNICATION_SECTORS 0x10000
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#define SECTOR_SIZE 512
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static void chihiro_ide_interface_init(const char *rom_file,
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const char *filesystem_file)
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{
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if (drive_get(IF_IDE, 0, 1)) {
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fprintf(stderr, "chihiro ide interface needs to be attached "
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"to IDE device 1 but it's already in use.");
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exit(1);
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}
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MemoryRegion *interface, *rom, *filesystem;
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interface = g_malloc(sizeof(*interface));
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memory_region_init(interface, "chihiro.interface",
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(uint64_t)0x10000000 * SECTOR_SIZE);
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rom = g_malloc(sizeof(*rom));
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memory_region_init_ram(rom, "chihiro.interface.rom",
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ROM_SECTORS * SECTOR_SIZE);
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memory_region_add_subregion(interface,
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(uint64_t)ROM_START * SECTOR_SIZE, rom);
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/* limited by the size of the board ram, which we emulate as 128M for now */
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filesystem = g_malloc(sizeof(*filesystem));
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memory_region_init_ram(filesystem, "chihiro.interface.filesystem",
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128 * 1024 * 1024);
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memory_region_add_subregion(interface,
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(uint64_t)FILESYSTEM_START * SECTOR_SIZE,
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filesystem);
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AddressSpace *interface_space;
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interface_space = g_malloc(sizeof(*interface_space));
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address_space_init(interface_space, interface);
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/* read files */
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int rc, fd = -1;
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if (!rom_file) rom_file = "fpr21042_m29w160et.bin";
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char *rom_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, rom_file);
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if (rom_filename) {
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int rom_size = get_image_size(rom_filename);
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assert(rom_size < memory_region_size(rom));
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fd = open(rom_filename, O_RDONLY | O_BINARY);
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assert(fd != -1);
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rc = read(fd, memory_region_get_ram_ptr(rom), rom_size);
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assert(rc == rom_size);
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}
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if (filesystem_file) {
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assert(access(filesystem_file, R_OK) == 0);
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int filesystem_size = get_image_size(filesystem_file);
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assert(filesystem_size < memory_region_size(filesystem));
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fd = open(filesystem_file, O_RDONLY | O_BINARY);
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assert(fd != -1);
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rc = read(fd, memory_region_get_ram_ptr(rom), filesystem_size);
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assert(rc == filesystem_size);
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}
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/* create the device */
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DriveInfo *dinfo;
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dinfo = g_malloc0(sizeof(*dinfo));
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dinfo->id = g_strdup("chihiro-interface");
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dinfo->bdrv = bdrv_new(dinfo->id);
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dinfo->type = IF_IDE;
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dinfo->bus = 0;
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dinfo->unit = 1;
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dinfo->refcount = 1;
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assert(!bdrv_memory_open(dinfo->bdrv, interface_space,
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memory_region_size(interface)));
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drive_append(dinfo);
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}
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static void chihiro_init(QEMUMachineInitArgs *args)
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{
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/* Placeholder blank eeprom for chihiro:
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* Serial number 000000000000
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* Mac address 00:00:00:00:00:00
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* ...etc.
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*/
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const uint8_t eeprom[] = {
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0xA7, 0x65, 0x60, 0x76, 0xB7, 0x2F, 0xFE, 0xD8,
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0x20, 0xBC, 0x8B, 0x15, 0x13, 0xBF, 0x73, 0x9C,
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0x8C, 0x3F, 0xD8, 0x07, 0x75, 0x55, 0x5F, 0x8B,
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0x09, 0xD1, 0x25, 0xD1, 0x1A, 0xA2, 0xD5, 0xB7,
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0x01, 0x7D, 0x9A, 0x31, 0xCD, 0x9C, 0x83, 0x6B,
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0x2C, 0xAB, 0xAD, 0x6F, 0xAC, 0x36, 0xDE, 0xEF,
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0x6F, 0x6E, 0x2F, 0x6F, 0x30, 0x30, 0x30, 0x30,
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0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x01, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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QemuOpts *machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
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if (machine_opts) {
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const char *mediaboard_rom_file =
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qemu_opt_get(machine_opts, "mediaboard_rom");
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const char *mediaboard_filesystem_file =
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qemu_opt_get(machine_opts, "mediaboard_filesystem");
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if (mediaboard_rom_file || mediaboard_filesystem_file) {
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chihiro_ide_interface_init(mediaboard_rom_file,
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mediaboard_filesystem_file);
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}
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}
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ISABus *isa_bus;
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xbox_init_common(args, (uint8_t*)eeprom, &isa_bus);
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ISADevice *dev = isa_create(isa_bus, "chihiro-lpc");
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qdev_init_nofail(&dev->qdev);
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}
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static QEMUMachine chihiro_machine = {
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.name = "chihiro",
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.desc = "Sega Chihiro",
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.init = chihiro_init,
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.max_cpus = 1,
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.no_floppy = 1,
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.no_cdrom = 1,
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.no_sdcard = 1,
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DEFAULT_MACHINE_OPTIONS
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};
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static void chihiro_machine_init(void) {
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qemu_register_machine(&chihiro_machine);
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}
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machine_init(chihiro_machine_init);
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8
vl.c
8
vl.c
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@ -433,6 +433,14 @@ static QemuOptsList qemu_machine_opts = {
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.name = "bootrom",
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.type = QEMU_OPT_STRING,
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.help = "Xbox bootrom file",
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},{
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.name = "mediaboard_rom",
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.type = QEMU_OPT_STRING,
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.help = "Chihiro mediaboard rom file",
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},{
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.name = "mediaboard_filesystem",
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.type = QEMU_OPT_STRING,
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.help = "Chihiro mediaboard filesystem file",
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},
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{ /* End of list */ }
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},
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