#include "qemu/osdep.h"
#include "qemu/units.h"
-#include "qemu-common.h"
#include "qemu/datadir.h"
#include "sysemu/sysemu.h"
#include "cpu.h"
-#include "hw/hw.h"
#include "hw/boards.h"
-#include "hw/irq.h"
+#include "hw/or-irq.h"
+#include "hw/nmi.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 "standard-headers/asm-m68k/bootinfo.h"
+#include "standard-headers/asm-m68k/bootinfo-mac.h"
#include "bootinfo.h"
#include "hw/misc/mac_via.h"
#include "hw/input/adb.h"
#include "sysemu/qtest.h"
#include "sysemu/runstate.h"
#include "sysemu/reset.h"
+#include "migration/vmstate.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 ASC_BASE (IO_BASE + 0x14000)
#define SWIM_BASE (IO_BASE + 0x1E000)
-#define NUBUS_SUPER_SLOT_BASE 0x60000000
-#define NUBUS_SLOT_BASE 0xf0000000
+#define SONIC_PROM_SIZE 0x1000
/*
* 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 VIDEO_BASE 0xf9000000
#define MAC_CLOCK 3686418
+/*
+ * Slot 0x9 is reserved for use by the in-built framebuffer whilst only
+ * slots 0xc, 0xd and 0xe physically exist on the Quadra 800
+ */
+#define Q800_NUBUS_SLOTS_AVAILABLE (BIT(0x9) | BIT(0xc) | BIT(0xd) | \
+ BIT(0xe))
+
/*
* The GLUE (General Logic Unit) is an Apple custom integrated circuit chip
* that performs a variety of functions (RAM management, clock generation, ...).
* CPU.
*/
-typedef struct {
+#define TYPE_GLUE "q800-glue"
+OBJECT_DECLARE_SIMPLE_TYPE(GLUEState, GLUE)
+
+struct GLUEState {
+ SysBusDevice parent_obj;
M68kCPU *cpu;
uint8_t ipr;
-} GLUEState;
+ uint8_t auxmode;
+ qemu_irq irqs[1];
+ QEMUTimer *nmi_release;
+};
+
+#define GLUE_IRQ_IN_VIA1 0
+#define GLUE_IRQ_IN_VIA2 1
+#define GLUE_IRQ_IN_SONIC 2
+#define GLUE_IRQ_IN_ESCC 3
+#define GLUE_IRQ_IN_NMI 4
+
+#define GLUE_IRQ_NUBUS_9 0
+
+/*
+ * The GLUE logic on the Quadra 800 supports 2 different IRQ routing modes
+ * controlled from the VIA1 auxmode GPIO (port B bit 6) which are documented
+ * in NetBSD as follows:
+ *
+ * A/UX mode (Linux, NetBSD, auxmode GPIO low)
+ *
+ * Level 0: Spurious: ignored
+ * Level 1: Software
+ * Level 2: VIA2 (except ethernet, sound)
+ * Level 3: Ethernet
+ * Level 4: Serial (SCC)
+ * Level 5: Sound
+ * Level 6: VIA1
+ * Level 7: NMIs: parity errors, RESET button, YANCC error
+ *
+ * Classic mode (default: used by MacOS, A/UX 3.0.1, auxmode GPIO high)
+ *
+ * Level 0: Spurious: ignored
+ * Level 1: VIA1 (clock, ADB)
+ * Level 2: VIA2 (NuBus, SCSI)
+ * Level 3:
+ * Level 4: Serial (SCC)
+ * Level 5:
+ * Level 6:
+ * Level 7: Non-maskable: parity errors, RESET button
+ *
+ * Note that despite references to A/UX mode in Linux and NetBSD, at least
+ * A/UX 3.0.1 still uses Classic mode.
+ */
static void GLUE_set_irq(void *opaque, int irq, int level)
{
GLUEState *s = opaque;
int i;
+ if (s->auxmode) {
+ /* Classic mode */
+ switch (irq) {
+ case GLUE_IRQ_IN_VIA1:
+ irq = 0;
+ break;
+
+ case GLUE_IRQ_IN_VIA2:
+ irq = 1;
+ break;
+
+ case GLUE_IRQ_IN_SONIC:
+ /* Route to VIA2 instead */
+ qemu_set_irq(s->irqs[GLUE_IRQ_NUBUS_9], level);
+ return;
+
+ case GLUE_IRQ_IN_ESCC:
+ irq = 3;
+ break;
+
+ case GLUE_IRQ_IN_NMI:
+ irq = 6;
+ break;
+
+ default:
+ g_assert_not_reached();
+ }
+ } else {
+ /* A/UX mode */
+ switch (irq) {
+ case GLUE_IRQ_IN_VIA1:
+ irq = 5;
+ break;
+
+ case GLUE_IRQ_IN_VIA2:
+ irq = 1;
+ break;
+
+ case GLUE_IRQ_IN_SONIC:
+ irq = 2;
+ break;
+
+ case GLUE_IRQ_IN_ESCC:
+ irq = 3;
+ break;
+
+ case GLUE_IRQ_IN_NMI:
+ irq = 6;
+ break;
+
+ default:
+ g_assert_not_reached();
+ }
+ }
+
if (level) {
s->ipr |= 1 << irq;
} else {
m68k_set_irq_level(s->cpu, 0, 0);
}
+static void glue_auxmode_set_irq(void *opaque, int irq, int level)
+{
+ GLUEState *s = GLUE(opaque);
+
+ s->auxmode = level;
+}
+
+static void glue_nmi(NMIState *n, int cpu_index, Error **errp)
+{
+ GLUEState *s = GLUE(n);
+
+ /* Hold NMI active for 100ms */
+ GLUE_set_irq(s, GLUE_IRQ_IN_NMI, 1);
+ timer_mod(s->nmi_release, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 100);
+}
+
+static void glue_nmi_release(void *opaque)
+{
+ GLUEState *s = GLUE(opaque);
+
+ GLUE_set_irq(s, GLUE_IRQ_IN_NMI, 0);
+}
+
+static void glue_reset(DeviceState *dev)
+{
+ GLUEState *s = GLUE(dev);
+
+ s->ipr = 0;
+ s->auxmode = 0;
+
+ timer_del(s->nmi_release);
+}
+
+static const VMStateDescription vmstate_glue = {
+ .name = "q800-glue",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(ipr, GLUEState),
+ VMSTATE_UINT8(auxmode, GLUEState),
+ VMSTATE_TIMER_PTR(nmi_release, GLUEState),
+ VMSTATE_END_OF_LIST(),
+ },
+};
+
+/*
+ * If the m68k CPU implemented its inbound irq lines as GPIO lines
+ * rather than via the m68k_set_irq_level() function we would not need
+ * this cpu link property and could instead provide outbound IRQ lines
+ * that the board could wire up to the CPU.
+ */
+static Property glue_properties[] = {
+ DEFINE_PROP_LINK("cpu", GLUEState, cpu, TYPE_M68K_CPU, M68kCPU *),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void glue_finalize(Object *obj)
+{
+ GLUEState *s = GLUE(obj);
+
+ timer_free(s->nmi_release);
+}
+
+static void glue_init(Object *obj)
+{
+ DeviceState *dev = DEVICE(obj);
+ GLUEState *s = GLUE(dev);
+
+ qdev_init_gpio_in(dev, GLUE_set_irq, 8);
+ qdev_init_gpio_in_named(dev, glue_auxmode_set_irq, "auxmode", 1);
+
+ qdev_init_gpio_out(dev, s->irqs, 1);
+
+ /* NMI release timer */
+ s->nmi_release = timer_new_ms(QEMU_CLOCK_VIRTUAL, glue_nmi_release, s);
+}
+
+static void glue_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ NMIClass *nc = NMI_CLASS(klass);
+
+ dc->vmsd = &vmstate_glue;
+ dc->reset = glue_reset;
+ device_class_set_props(dc, glue_properties);
+ nc->nmi_monitor_handler = glue_nmi;
+}
+
+static const TypeInfo glue_info = {
+ .name = TYPE_GLUE,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(GLUEState),
+ .instance_init = glue_init,
+ .instance_finalize = glue_finalize,
+ .class_init = glue_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_NMI },
+ { }
+ },
+};
+
static void main_cpu_reset(void *opaque)
{
M68kCPU *cpu = opaque;
int32_t initrd_size;
MemoryRegion *rom;
MemoryRegion *io;
+ MemoryRegion *dp8393x_prom = g_new(MemoryRegion, 1);
+ uint8_t *prom;
const int io_slice_nb = (IO_SIZE / IO_SLICE) - 1;
- int i;
+ int i, checksum;
+ MacFbMode *macfb_mode;
ram_addr_t ram_size = machine->ram_size;
const char *kernel_filename = machine->kernel_filename;
const char *initrd_filename = machine->initrd_filename;
hwaddr parameters_base;
CPUState *cs;
DeviceState *dev;
- DeviceState *via_dev;
+ DeviceState *via1_dev, *via2_dev;
+ DeviceState *escc_orgate;
SysBusESPState *sysbus_esp;
ESPState *esp;
SysBusDevice *sysbus;
BusState *adb_bus;
NubusBus *nubus;
- GLUEState *irq;
- qemu_irq *pic;
+ DeviceState *glue;
DriveInfo *dinfo;
linux_boot = (kernel_filename != NULL);
}
/* IRQ Glue */
+ glue = qdev_new(TYPE_GLUE);
+ object_property_set_link(OBJECT(glue), "cpu", OBJECT(cpu), &error_abort);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(glue), &error_fatal);
- 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);
+ /* VIA 1 */
+ via1_dev = qdev_new(TYPE_MOS6522_Q800_VIA1);
dinfo = drive_get(IF_MTD, 0, 0);
if (dinfo) {
- qdev_prop_set_drive(via_dev, "drive", blk_by_legacy_dinfo(dinfo));
+ qdev_prop_set_drive(via1_dev, "drive", blk_by_legacy_dinfo(dinfo));
}
- sysbus = SYS_BUS_DEVICE(via_dev);
+ sysbus = SYS_BUS_DEVICE(via1_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]);
+ sysbus_mmio_map(sysbus, 1, VIA_BASE);
+ sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, GLUE_IRQ_IN_VIA1));
+ /* A/UX mode */
+ qdev_connect_gpio_out(via1_dev, 0,
+ qdev_get_gpio_in_named(glue, "auxmode", 0));
-
- adb_bus = qdev_get_child_bus(via_dev, "adb.0");
+ adb_bus = qdev_get_child_bus(via1_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);
+ /* VIA 2 */
+ via2_dev = qdev_new(TYPE_MOS6522_Q800_VIA2);
+ sysbus = SYS_BUS_DEVICE(via2_dev);
+ sysbus_realize_and_unref(sysbus, &error_fatal);
+ sysbus_mmio_map(sysbus, 1, VIA_BASE + VIA_SIZE);
+ sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, GLUE_IRQ_IN_VIA2));
+
/* MACSONIC */
if (nb_nics > 1) {
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]);
+ sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, GLUE_IRQ_IN_SONIC));
+
+ memory_region_init_rom(dp8393x_prom, NULL, "dp8393x-q800.prom",
+ SONIC_PROM_SIZE, &error_fatal);
+ memory_region_add_subregion(get_system_memory(), SONIC_PROM_BASE,
+ dp8393x_prom);
+
+ /* Add MAC address with valid checksum to PROM */
+ prom = memory_region_get_ram_ptr(dp8393x_prom);
+ checksum = 0;
+ for (i = 0; i < 6; i++) {
+ prom[i] = revbit8(nd_table[0].macaddr.a[i]);
+ checksum ^= prom[i];
+ }
+ prom[7] = 0xff - checksum;
/* SCC */
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]);
+
+ /* Logically OR both its IRQs together */
+ escc_orgate = DEVICE(object_new(TYPE_OR_IRQ));
+ object_property_set_int(OBJECT(escc_orgate), "num-lines", 2, &error_fatal);
+ qdev_realize_and_unref(escc_orgate, NULL, &error_fatal);
+ sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(escc_orgate, 0));
+ sysbus_connect_irq(sysbus, 1, qdev_get_gpio_in(escc_orgate, 1));
+ qdev_connect_gpio_out(DEVICE(escc_orgate), 0,
+ qdev_get_gpio_in(glue, GLUE_IRQ_IN_ESCC));
sysbus_mmio_map(sysbus, 0, SCC_BASE);
/* SCSI */
- dev = qdev_new(TYPE_ESP);
- sysbus_esp = ESP(dev);
+ dev = qdev_new(TYPE_SYSBUS_ESP);
+ sysbus_esp = SYSBUS_ESP(dev);
esp = &sysbus_esp->esp;
esp->dma_memory_read = NULL;
esp->dma_memory_write = NULL;
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));
+ /* SCSI and SCSI data IRQs are negative edge triggered */
+ sysbus_connect_irq(sysbus, 0, qemu_irq_invert(qdev_get_gpio_in(via2_dev,
+ VIA2_IRQ_SCSI_BIT)));
+ sysbus_connect_irq(sysbus, 1, qemu_irq_invert(qdev_get_gpio_in(via2_dev,
+ VIA2_IRQ_SCSI_DATA_BIT)));
sysbus_mmio_map(sysbus, 0, ESP_BASE);
sysbus_mmio_map(sysbus, 1, ESP_PDMA);
/* NuBus */
dev = qdev_new(TYPE_MAC_NUBUS_BRIDGE);
+ qdev_prop_set_uint32(dev, "slot-available-mask",
+ Q800_NUBUS_SLOTS_AVAILABLE);
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);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0,
+ MAC_NUBUS_FIRST_SLOT * NUBUS_SUPER_SLOT_SIZE);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, NUBUS_SLOT_BASE +
+ MAC_NUBUS_FIRST_SLOT * NUBUS_SLOT_SIZE);
+ qdev_connect_gpio_out(dev, 9,
+ qdev_get_gpio_in_named(via2_dev, "nubus-irq",
+ VIA2_NUBUS_IRQ_INTVIDEO));
+ for (i = 1; i < VIA2_NUBUS_IRQ_NB; i++) {
+ qdev_connect_gpio_out(dev, 9 + i,
+ qdev_get_gpio_in_named(via2_dev, "nubus-irq",
+ VIA2_NUBUS_IRQ_9 + i));
+ }
+
+ /*
+ * Since the framebuffer in slot 0x9 uses a separate IRQ, wire the unused
+ * IRQ via GLUE for use by SONIC Ethernet in classic mode
+ */
+ qdev_connect_gpio_out(glue, GLUE_IRQ_NUBUS_9,
+ qdev_get_gpio_in_named(via2_dev, "nubus-irq",
+ VIA2_NUBUS_IRQ_9));
- nubus = MAC_NUBUS_BRIDGE(dev)->bus;
+ nubus = &NUBUS_BRIDGE(dev)->bus;
/* framebuffer in nubus slot #9 */
dev = qdev_new(TYPE_NUBUS_MACFB);
+ qdev_prop_set_uint32(dev, "slot", 9);
qdev_prop_set_uint32(dev, "width", graphic_width);
qdev_prop_set_uint32(dev, "height", graphic_height);
qdev_prop_set_uint8(dev, "depth", graphic_depth);
+ if (graphic_width == 1152 && graphic_height == 870) {
+ qdev_prop_set_uint8(dev, "display", MACFB_DISPLAY_APPLE_21_COLOR);
+ } else {
+ qdev_prop_set_uint8(dev, "display", MACFB_DISPLAY_VGA);
+ }
qdev_realize_and_unref(dev, BUS(nubus), &error_fatal);
+ macfb_mode = (NUBUS_MACFB(dev)->macfb).mode;
+
cs = CPU(cpu);
if (linux_boot) {
uint64_t high;
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_FPUTYPE, FPU_68040);
+ BOOTINFO1(cs->as, parameters_base, BI_MMUTYPE, MMU_68040);
+ BOOTINFO1(cs->as, parameters_base, BI_CPUTYPE, CPU_68040);
+ BOOTINFO1(cs->as, parameters_base, BI_MAC_CPUID, CPUB_68040);
+ BOOTINFO1(cs->as, parameters_base, BI_MAC_MODEL, MAC_MODEL_Q800);
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_VADDR,
+ VIDEO_BASE + macfb_mode->offset);
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_VROW, macfb_mode->stride);
BOOTINFO1(cs->as, parameters_base, BI_MAC_SCCBASE, SCC_BASE);
rom = g_malloc(sizeof(*rom));
/* Remove qtest_enabled() check once firmware files are in the tree */
if (!qtest_enabled()) {
- if (bios_size < 0 || bios_size > MACROM_SIZE) {
+ 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);
+ ptr = rom_ptr(MACROM_ADDR, bios_size);
+ assert(ptr != NULL);
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_register_types(void)
{
type_register_static(&q800_machine_typeinfo);
+ type_register_static(&glue_info);
}
type_init(q800_machine_register_types)
projects / mirror_qemu.git / blobdiff