| /* |
| * QEMU Motorla 680x0 Macintosh hardware System Emulator |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/units.h" |
| #include "qemu-common.h" |
| #include "sysemu/sysemu.h" |
| #include "cpu.h" |
| #include "hw/hw.h" |
| #include "hw/boards.h" |
| #include "hw/irq.h" |
| #include "elf.h" |
| #include "hw/loader.h" |
| #include "ui/console.h" |
| #include "exec/address-spaces.h" |
| #include "hw/char/escc.h" |
| #include "hw/sysbus.h" |
| #include "hw/scsi/esp.h" |
| #include "bootinfo.h" |
| #include "hw/misc/mac_via.h" |
| #include "hw/input/adb.h" |
| #include "hw/nubus/mac-nubus-bridge.h" |
| #include "hw/display/macfb.h" |
| #include "hw/block/swim.h" |
| #include "net/net.h" |
| #include "qapi/error.h" |
| #include "sysemu/qtest.h" |
| #include "sysemu/runstate.h" |
| #include "sysemu/reset.h" |
| |
| #define MACROM_ADDR 0x40800000 |
| #define MACROM_SIZE 0x00100000 |
| |
| #define MACROM_FILENAME "MacROM.bin" |
| |
| #define Q800_MACHINE_ID 35 |
| #define Q800_CPU_ID (1 << 2) |
| #define Q800_FPU_ID (1 << 2) |
| #define Q800_MMU_ID (1 << 2) |
| |
| #define MACH_MAC 3 |
| #define Q800_MAC_CPU_ID 2 |
| |
| #define IO_BASE 0x50000000 |
| #define IO_SLICE 0x00040000 |
| #define IO_SIZE 0x04000000 |
| |
| #define VIA_BASE (IO_BASE + 0x00000) |
| #define SONIC_PROM_BASE (IO_BASE + 0x08000) |
| #define SONIC_BASE (IO_BASE + 0x0a000) |
| #define SCC_BASE (IO_BASE + 0x0c020) |
| #define ESP_BASE (IO_BASE + 0x10000) |
| #define ESP_PDMA (IO_BASE + 0x10100) |
| #define ASC_BASE (IO_BASE + 0x14000) |
| #define SWIM_BASE (IO_BASE + 0x1E000) |
| |
| #define NUBUS_SUPER_SLOT_BASE 0x60000000 |
| #define NUBUS_SLOT_BASE 0xf0000000 |
| |
| /* |
| * the video base, whereas it a Nubus address, |
| * is needed by the kernel to have early display and |
| * thus provided by the bootloader |
| */ |
| #define VIDEO_BASE 0xf9001000 |
| |
| #define MAC_CLOCK 3686418 |
| |
| /* |
| * The GLUE (General Logic Unit) is an Apple custom integrated circuit chip |
| * that performs a variety of functions (RAM management, clock generation, ...). |
| * The GLUE chip receives interrupt requests from various devices, |
| * assign priority to each, and asserts one or more interrupt line to the |
| * CPU. |
| */ |
| |
| typedef struct { |
| M68kCPU *cpu; |
| uint8_t ipr; |
| } GLUEState; |
| |
| static void GLUE_set_irq(void *opaque, int irq, int level) |
| { |
| GLUEState *s = opaque; |
| int i; |
| |
| if (level) { |
| s->ipr |= 1 << irq; |
| } else { |
| s->ipr &= ~(1 << irq); |
| } |
| |
| for (i = 7; i >= 0; i--) { |
| if ((s->ipr >> i) & 1) { |
| m68k_set_irq_level(s->cpu, i + 1, i + 25); |
| return; |
| } |
| } |
| m68k_set_irq_level(s->cpu, 0, 0); |
| } |
| |
| static void main_cpu_reset(void *opaque) |
| { |
| M68kCPU *cpu = opaque; |
| CPUState *cs = CPU(cpu); |
| |
| cpu_reset(cs); |
| cpu->env.aregs[7] = ldl_phys(cs->as, 0); |
| cpu->env.pc = ldl_phys(cs->as, 4); |
| } |
| |
| static uint8_t fake_mac_rom[] = { |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| |
| /* offset: 0xa - mac_reset */ |
| |
| /* via2[vDirB] |= VIA2B_vPower */ |
| 0x20, 0x7C, 0x50, 0xF0, 0x24, 0x00, /* moveal VIA2_BASE+vDirB,%a0 */ |
| 0x10, 0x10, /* moveb %a0@,%d0 */ |
| 0x00, 0x00, 0x00, 0x04, /* orib #4,%d0 */ |
| 0x10, 0x80, /* moveb %d0,%a0@ */ |
| |
| /* via2[vBufB] &= ~VIA2B_vPower */ |
| 0x20, 0x7C, 0x50, 0xF0, 0x20, 0x00, /* moveal VIA2_BASE+vBufB,%a0 */ |
| 0x10, 0x10, /* moveb %a0@,%d0 */ |
| 0x02, 0x00, 0xFF, 0xFB, /* andib #-5,%d0 */ |
| 0x10, 0x80, /* moveb %d0,%a0@ */ |
| |
| /* while (true) ; */ |
| 0x60, 0xFE /* bras [self] */ |
| }; |
| |
| static void q800_init(MachineState *machine) |
| { |
| M68kCPU *cpu = NULL; |
| int linux_boot; |
| int32_t kernel_size; |
| uint64_t elf_entry; |
| char *filename; |
| int bios_size; |
| ram_addr_t initrd_base; |
| int32_t initrd_size; |
| MemoryRegion *rom; |
| MemoryRegion *io; |
| const int io_slice_nb = (IO_SIZE / IO_SLICE) - 1; |
| int i; |
| ram_addr_t ram_size = machine->ram_size; |
| const char *kernel_filename = machine->kernel_filename; |
| const char *initrd_filename = machine->initrd_filename; |
| const char *kernel_cmdline = machine->kernel_cmdline; |
| hwaddr parameters_base; |
| CPUState *cs; |
| DeviceState *dev; |
| DeviceState *via_dev; |
| SysBusESPState *sysbus_esp; |
| ESPState *esp; |
| SysBusDevice *sysbus; |
| BusState *adb_bus; |
| NubusBus *nubus; |
| GLUEState *irq; |
| qemu_irq *pic; |
| DriveInfo *dinfo; |
| |
| linux_boot = (kernel_filename != NULL); |
| |
| if (ram_size > 1 * GiB) { |
| error_report("Too much memory for this machine: %" PRId64 " MiB, " |
| "maximum 1024 MiB", ram_size / MiB); |
| exit(1); |
| } |
| |
| /* init CPUs */ |
| cpu = M68K_CPU(cpu_create(machine->cpu_type)); |
| qemu_register_reset(main_cpu_reset, cpu); |
| |
| /* RAM */ |
| memory_region_add_subregion(get_system_memory(), 0, machine->ram); |
| |
| /* |
| * Memory from IO_BASE to IO_BASE + IO_SLICE is repeated |
| * from IO_BASE + IO_SLICE to IO_BASE + IO_SIZE |
| */ |
| io = g_new(MemoryRegion, io_slice_nb); |
| for (i = 0; i < io_slice_nb; i++) { |
| char *name = g_strdup_printf("mac_m68k.io[%d]", i + 1); |
| |
| memory_region_init_alias(&io[i], NULL, name, get_system_memory(), |
| IO_BASE, IO_SLICE); |
| memory_region_add_subregion(get_system_memory(), |
| IO_BASE + (i + 1) * IO_SLICE, &io[i]); |
| g_free(name); |
| } |
| |
| /* IRQ Glue */ |
| |
| irq = g_new0(GLUEState, 1); |
| irq->cpu = cpu; |
| pic = qemu_allocate_irqs(GLUE_set_irq, irq, 8); |
| |
| /* VIA */ |
| |
| via_dev = qdev_new(TYPE_MAC_VIA); |
| dinfo = drive_get(IF_MTD, 0, 0); |
| if (dinfo) { |
| qdev_prop_set_drive(via_dev, "drive", blk_by_legacy_dinfo(dinfo)); |
| } |
| sysbus = SYS_BUS_DEVICE(via_dev); |
| sysbus_realize_and_unref(sysbus, &error_fatal); |
| sysbus_mmio_map(sysbus, 0, VIA_BASE); |
| qdev_connect_gpio_out_named(DEVICE(sysbus), "irq", 0, pic[0]); |
| qdev_connect_gpio_out_named(DEVICE(sysbus), "irq", 1, pic[1]); |
| |
| |
| adb_bus = qdev_get_child_bus(via_dev, "adb.0"); |
| dev = qdev_new(TYPE_ADB_KEYBOARD); |
| qdev_realize_and_unref(dev, adb_bus, &error_fatal); |
| dev = qdev_new(TYPE_ADB_MOUSE); |
| qdev_realize_and_unref(dev, adb_bus, &error_fatal); |
| |
| /* MACSONIC */ |
| |
| if (nb_nics > 1) { |
| error_report("q800 can only have one ethernet interface"); |
| exit(1); |
| } |
| |
| qemu_check_nic_model(&nd_table[0], "dp83932"); |
| |
| /* |
| * MacSonic driver needs an Apple MAC address |
| * Valid prefix are: |
| * 00:05:02 Apple |
| * 00:80:19 Dayna Communications, Inc. |
| * 00:A0:40 Apple |
| * 08:00:07 Apple |
| * (Q800 use the last one) |
| */ |
| nd_table[0].macaddr.a[0] = 0x08; |
| nd_table[0].macaddr.a[1] = 0x00; |
| nd_table[0].macaddr.a[2] = 0x07; |
| |
| dev = qdev_new("dp8393x"); |
| qdev_set_nic_properties(dev, &nd_table[0]); |
| qdev_prop_set_uint8(dev, "it_shift", 2); |
| qdev_prop_set_bit(dev, "big_endian", true); |
| object_property_set_link(OBJECT(dev), "dma_mr", |
| OBJECT(get_system_memory()), &error_abort); |
| sysbus = SYS_BUS_DEVICE(dev); |
| sysbus_realize_and_unref(sysbus, &error_fatal); |
| sysbus_mmio_map(sysbus, 0, SONIC_BASE); |
| sysbus_mmio_map(sysbus, 1, SONIC_PROM_BASE); |
| sysbus_connect_irq(sysbus, 0, pic[2]); |
| |
| /* SCC */ |
| |
| dev = qdev_new(TYPE_ESCC); |
| qdev_prop_set_uint32(dev, "disabled", 0); |
| qdev_prop_set_uint32(dev, "frequency", MAC_CLOCK); |
| qdev_prop_set_uint32(dev, "it_shift", 1); |
| qdev_prop_set_bit(dev, "bit_swap", true); |
| qdev_prop_set_chr(dev, "chrA", serial_hd(0)); |
| qdev_prop_set_chr(dev, "chrB", serial_hd(1)); |
| qdev_prop_set_uint32(dev, "chnBtype", 0); |
| qdev_prop_set_uint32(dev, "chnAtype", 0); |
| sysbus = SYS_BUS_DEVICE(dev); |
| sysbus_realize_and_unref(sysbus, &error_fatal); |
| sysbus_connect_irq(sysbus, 0, pic[3]); |
| sysbus_connect_irq(sysbus, 1, pic[3]); |
| sysbus_mmio_map(sysbus, 0, SCC_BASE); |
| |
| /* SCSI */ |
| |
| dev = qdev_new(TYPE_ESP); |
| sysbus_esp = ESP_STATE(dev); |
| esp = &sysbus_esp->esp; |
| esp->dma_memory_read = NULL; |
| esp->dma_memory_write = NULL; |
| esp->dma_opaque = NULL; |
| sysbus_esp->it_shift = 4; |
| esp->dma_enabled = 1; |
| |
| sysbus = SYS_BUS_DEVICE(dev); |
| sysbus_realize_and_unref(sysbus, &error_fatal); |
| sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in_named(via_dev, |
| "via2-irq", |
| VIA2_IRQ_SCSI_BIT)); |
| sysbus_connect_irq(sysbus, 1, |
| qdev_get_gpio_in_named(via_dev, "via2-irq", |
| VIA2_IRQ_SCSI_DATA_BIT)); |
| sysbus_mmio_map(sysbus, 0, ESP_BASE); |
| sysbus_mmio_map(sysbus, 1, ESP_PDMA); |
| |
| scsi_bus_legacy_handle_cmdline(&esp->bus); |
| |
| /* SWIM floppy controller */ |
| |
| dev = qdev_new(TYPE_SWIM); |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, SWIM_BASE); |
| |
| /* NuBus */ |
| |
| dev = qdev_new(TYPE_MAC_NUBUS_BRIDGE); |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, NUBUS_SUPER_SLOT_BASE); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, NUBUS_SLOT_BASE); |
| |
| nubus = MAC_NUBUS_BRIDGE(dev)->bus; |
| |
| /* framebuffer in nubus slot #9 */ |
| |
| dev = qdev_new(TYPE_NUBUS_MACFB); |
| qdev_prop_set_uint32(dev, "width", graphic_width); |
| qdev_prop_set_uint32(dev, "height", graphic_height); |
| qdev_prop_set_uint8(dev, "depth", graphic_depth); |
| qdev_realize_and_unref(dev, BUS(nubus), &error_fatal); |
| |
| cs = CPU(cpu); |
| if (linux_boot) { |
| uint64_t high; |
| kernel_size = load_elf(kernel_filename, NULL, NULL, NULL, |
| &elf_entry, NULL, &high, NULL, 1, |
| EM_68K, 0, 0); |
| if (kernel_size < 0) { |
| error_report("could not load kernel '%s'", kernel_filename); |
| exit(1); |
| } |
| stl_phys(cs->as, 4, elf_entry); /* reset initial PC */ |
| parameters_base = (high + 1) & ~1; |
| |
| BOOTINFO1(cs->as, parameters_base, BI_MACHTYPE, MACH_MAC); |
| BOOTINFO1(cs->as, parameters_base, BI_FPUTYPE, Q800_FPU_ID); |
| BOOTINFO1(cs->as, parameters_base, BI_MMUTYPE, Q800_MMU_ID); |
| BOOTINFO1(cs->as, parameters_base, BI_CPUTYPE, Q800_CPU_ID); |
| BOOTINFO1(cs->as, parameters_base, BI_MAC_CPUID, Q800_MAC_CPU_ID); |
| BOOTINFO1(cs->as, parameters_base, BI_MAC_MODEL, Q800_MACHINE_ID); |
| BOOTINFO1(cs->as, parameters_base, |
| BI_MAC_MEMSIZE, ram_size >> 20); /* in MB */ |
| BOOTINFO2(cs->as, parameters_base, BI_MEMCHUNK, 0, ram_size); |
| BOOTINFO1(cs->as, parameters_base, BI_MAC_VADDR, VIDEO_BASE); |
| BOOTINFO1(cs->as, parameters_base, BI_MAC_VDEPTH, graphic_depth); |
| BOOTINFO1(cs->as, parameters_base, BI_MAC_VDIM, |
| (graphic_height << 16) | graphic_width); |
| BOOTINFO1(cs->as, parameters_base, BI_MAC_VROW, |
| (graphic_width * graphic_depth + 7) / 8); |
| BOOTINFO1(cs->as, parameters_base, BI_MAC_SCCBASE, SCC_BASE); |
| |
| rom = g_malloc(sizeof(*rom)); |
| memory_region_init_ram_ptr(rom, NULL, "m68k_fake_mac.rom", |
| sizeof(fake_mac_rom), fake_mac_rom); |
| memory_region_set_readonly(rom, true); |
| memory_region_add_subregion(get_system_memory(), MACROM_ADDR, rom); |
| |
| if (kernel_cmdline) { |
| BOOTINFOSTR(cs->as, parameters_base, BI_COMMAND_LINE, |
| kernel_cmdline); |
| } |
| |
| /* load initrd */ |
| if (initrd_filename) { |
| initrd_size = get_image_size(initrd_filename); |
| if (initrd_size < 0) { |
| error_report("could not load initial ram disk '%s'", |
| initrd_filename); |
| exit(1); |
| } |
| |
| initrd_base = (ram_size - initrd_size) & TARGET_PAGE_MASK; |
| load_image_targphys(initrd_filename, initrd_base, |
| ram_size - initrd_base); |
| BOOTINFO2(cs->as, parameters_base, BI_RAMDISK, initrd_base, |
| initrd_size); |
| } else { |
| initrd_base = 0; |
| initrd_size = 0; |
| } |
| BOOTINFO0(cs->as, parameters_base, BI_LAST); |
| } else { |
| uint8_t *ptr; |
| /* allocate and load BIOS */ |
| rom = g_malloc(sizeof(*rom)); |
| memory_region_init_rom(rom, NULL, "m68k_mac.rom", MACROM_SIZE, |
| &error_abort); |
| if (bios_name == NULL) { |
| bios_name = MACROM_FILENAME; |
| } |
| filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); |
| memory_region_add_subregion(get_system_memory(), MACROM_ADDR, rom); |
| |
| /* Load MacROM binary */ |
| if (filename) { |
| bios_size = load_image_targphys(filename, MACROM_ADDR, MACROM_SIZE); |
| g_free(filename); |
| } else { |
| bios_size = -1; |
| } |
| |
| /* Remove qtest_enabled() check once firmware files are in the tree */ |
| if (!qtest_enabled()) { |
| if (bios_size < 0 || bios_size > MACROM_SIZE) { |
| error_report("could not load MacROM '%s'", bios_name); |
| exit(1); |
| } |
| |
| ptr = rom_ptr(MACROM_ADDR, MACROM_SIZE); |
| stl_phys(cs->as, 0, ldl_p(ptr)); /* reset initial SP */ |
| stl_phys(cs->as, 4, |
| MACROM_ADDR + ldl_p(ptr + 4)); /* reset initial PC */ |
| } |
| } |
| } |
| |
| static void q800_machine_class_init(ObjectClass *oc, void *data) |
| { |
| MachineClass *mc = MACHINE_CLASS(oc); |
| mc->desc = "Macintosh Quadra 800"; |
| mc->init = q800_init; |
| mc->default_cpu_type = M68K_CPU_TYPE_NAME("m68040"); |
| mc->max_cpus = 1; |
| mc->block_default_type = IF_SCSI; |
| mc->default_ram_id = "m68k_mac.ram"; |
| } |
| |
| static const TypeInfo q800_machine_typeinfo = { |
| .name = MACHINE_TYPE_NAME("q800"), |
| .parent = TYPE_MACHINE, |
| .class_init = q800_machine_class_init, |
| }; |
| |
| static void q800_machine_register_types(void) |
| { |
| type_register_static(&q800_machine_typeinfo); |
| } |
| |
| type_init(q800_machine_register_types) |
