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diff --git a/hw/display/macfb.c b/hw/display/macfb.c
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--- /dev/null
+++ b/hw/display/macfb.c
@@ -0,0 +1,807 @@
+/*
+ * QEMU Motorola 680x0 Macintosh Video Card Emulation
+ * Copyright (c) 2012-2018 Laurent Vivier
+ *
+ * some parts from QEMU G364 framebuffer Emulator.
+ * Copyright (c) 2007-2011 Herve Poussineau
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "hw/sysbus.h"
+#include "ui/console.h"
+#include "ui/pixel_ops.h"
+#include "hw/nubus/nubus.h"
+#include "hw/display/macfb.h"
+#include "qapi/error.h"
+#include "hw/qdev-properties.h"
+#include "migration/vmstate.h"
+#include "trace.h"
+
+#define VIDEO_BASE 0x0
+#define DAFB_BASE 0x00800000
+
+#define MACFB_PAGE_SIZE 4096
+#define MACFB_VRAM_SIZE (4 * MiB)
+
+#define DAFB_MODE_VADDR1 0x0
+#define DAFB_MODE_VADDR2 0x4
+#define DAFB_MODE_CTRL1 0x8
+#define DAFB_MODE_CTRL2 0xc
+#define DAFB_MODE_SENSE 0x1c
+#define DAFB_INTR_MASK 0x104
+#define DAFB_INTR_STAT 0x108
+#define DAFB_INTR_CLEAR 0x10c
+#define DAFB_RESET 0x200
+#define DAFB_LUT 0x213
+
+#define DAFB_INTR_VBL 0x4
+
+/* Vertical Blank period (60.15Hz) */
+#define DAFB_INTR_VBL_PERIOD_NS 16625800
+
+/*
+ * Quadra sense codes taken from Apple Technical Note HW26:
+ * "Macintosh Quadra Built-In Video". The sense codes and
+ * extended sense codes have different meanings:
+ *
+ * Sense:
+ * bit 2: SENSE2 (pin 10)
+ * bit 1: SENSE1 (pin 7)
+ * bit 0: SENSE0 (pin 4)
+ *
+ * 0 = pin tied to ground
+ * 1 = pin unconnected
+ *
+ * Extended Sense:
+ * bit 2: pins 4-10
+ * bit 1: pins 10-7
+ * bit 0: pins 7-4
+ *
+ * 0 = pins tied together
+ * 1 = pins unconnected
+ *
+ * Reads from the sense register appear to be active low, i.e. a 1 indicates
+ * that the pin is tied to ground, a 0 indicates the pin is disconnected.
+ *
+ * Writes to the sense register appear to activate pulldowns i.e. a 1 enables
+ * a pulldown on a particular pin.
+ *
+ * The MacOS toolbox appears to use a series of reads and writes to first
+ * determine if extended sense is to be used, and then check which pins are
+ * tied together in order to determine the display type.
+ */
+
+typedef struct MacFbSense {
+ uint8_t type;
+ uint8_t sense;
+ uint8_t ext_sense;
+} MacFbSense;
+
+static MacFbSense macfb_sense_table[] = {
+ { MACFB_DISPLAY_APPLE_21_COLOR, 0x0, 0 },
+ { MACFB_DISPLAY_APPLE_PORTRAIT, 0x1, 0 },
+ { MACFB_DISPLAY_APPLE_12_RGB, 0x2, 0 },
+ { MACFB_DISPLAY_APPLE_2PAGE_MONO, 0x3, 0 },
+ { MACFB_DISPLAY_NTSC_UNDERSCAN, 0x4, 0 },
+ { MACFB_DISPLAY_NTSC_OVERSCAN, 0x4, 0 },
+ { MACFB_DISPLAY_APPLE_12_MONO, 0x6, 0 },
+ { MACFB_DISPLAY_APPLE_13_RGB, 0x6, 0 },
+ { MACFB_DISPLAY_16_COLOR, 0x7, 0x3 },
+ { MACFB_DISPLAY_PAL1_UNDERSCAN, 0x7, 0x0 },
+ { MACFB_DISPLAY_PAL1_OVERSCAN, 0x7, 0x0 },
+ { MACFB_DISPLAY_PAL2_UNDERSCAN, 0x7, 0x6 },
+ { MACFB_DISPLAY_PAL2_OVERSCAN, 0x7, 0x6 },
+ { MACFB_DISPLAY_VGA, 0x7, 0x5 },
+ { MACFB_DISPLAY_SVGA, 0x7, 0x5 },
+};
+
+static MacFbMode macfb_mode_table[] = {
+ { MACFB_DISPLAY_VGA, 1, 0x100, 0x71e, 640, 480, 0x400, 0x1000 },
+ { MACFB_DISPLAY_VGA, 2, 0x100, 0x70e, 640, 480, 0x400, 0x1000 },
+ { MACFB_DISPLAY_VGA, 4, 0x100, 0x706, 640, 480, 0x400, 0x1000 },
+ { MACFB_DISPLAY_VGA, 8, 0x100, 0x702, 640, 480, 0x400, 0x1000 },
+ { MACFB_DISPLAY_VGA, 24, 0x100, 0x7ff, 640, 480, 0x1000, 0x1000 },
+ { MACFB_DISPLAY_VGA, 1, 0xd0 , 0x70e, 800, 600, 0x340, 0xe00 },
+ { MACFB_DISPLAY_VGA, 2, 0xd0 , 0x706, 800, 600, 0x340, 0xe00 },
+ { MACFB_DISPLAY_VGA, 4, 0xd0 , 0x702, 800, 600, 0x340, 0xe00 },
+ { MACFB_DISPLAY_VGA, 8, 0xd0, 0x700, 800, 600, 0x340, 0xe00 },
+ { MACFB_DISPLAY_VGA, 24, 0x340, 0x100, 800, 600, 0xd00, 0xe00 },
+ { MACFB_DISPLAY_APPLE_21_COLOR, 1, 0x90, 0x506, 1152, 870, 0x240, 0x80 },
+ { MACFB_DISPLAY_APPLE_21_COLOR, 2, 0x90, 0x502, 1152, 870, 0x240, 0x80 },
+ { MACFB_DISPLAY_APPLE_21_COLOR, 4, 0x90, 0x500, 1152, 870, 0x240, 0x80 },
+ { MACFB_DISPLAY_APPLE_21_COLOR, 8, 0x120, 0x5ff, 1152, 870, 0x480, 0x80 },
+};
+
+typedef void macfb_draw_line_func(MacfbState *s, uint8_t *d, uint32_t addr,
+ int width);
+
+static inline uint8_t macfb_read_byte(MacfbState *s, uint32_t addr)
+{
+ return s->vram[addr & s->vram_bit_mask];
+}
+
+/* 1-bit color */
+static void macfb_draw_line1(MacfbState *s, uint8_t *d, uint32_t addr,
+ int width)
+{
+ uint8_t r, g, b;
+ int x;
+
+ for (x = 0; x < width; x++) {
+ int bit = x & 7;
+ int idx = (macfb_read_byte(s, addr) >> (7 - bit)) & 1;
+ r = s->color_palette[idx * 3];
+ g = s->color_palette[idx * 3 + 1];
+ b = s->color_palette[idx * 3 + 2];
+ addr += (bit == 7);
+
+ *(uint32_t *)d = rgb_to_pixel32(r, g, b);
+ d += 4;
+ }
+}
+
+/* 2-bit color */
+static void macfb_draw_line2(MacfbState *s, uint8_t *d, uint32_t addr,
+ int width)
+{
+ uint8_t r, g, b;
+ int x;
+
+ for (x = 0; x < width; x++) {
+ int bit = (x & 3);
+ int idx = (macfb_read_byte(s, addr) >> ((3 - bit) << 1)) & 3;
+ r = s->color_palette[idx * 3];
+ g = s->color_palette[idx * 3 + 1];
+ b = s->color_palette[idx * 3 + 2];
+ addr += (bit == 3);
+
+ *(uint32_t *)d = rgb_to_pixel32(r, g, b);
+ d += 4;
+ }
+}
+
+/* 4-bit color */
+static void macfb_draw_line4(MacfbState *s, uint8_t *d, uint32_t addr,
+ int width)
+{
+ uint8_t r, g, b;
+ int x;
+
+ for (x = 0; x < width; x++) {
+ int bit = x & 1;
+ int idx = (macfb_read_byte(s, addr) >> ((1 - bit) << 2)) & 15;
+ r = s->color_palette[idx * 3];
+ g = s->color_palette[idx * 3 + 1];
+ b = s->color_palette[idx * 3 + 2];
+ addr += (bit == 1);
+
+ *(uint32_t *)d = rgb_to_pixel32(r, g, b);
+ d += 4;
+ }
+}
+
+/* 8-bit color */
+static void macfb_draw_line8(MacfbState *s, uint8_t *d, uint32_t addr,
+ int width)
+{
+ uint8_t r, g, b;
+ int x;
+
+ for (x = 0; x < width; x++) {
+ r = s->color_palette[macfb_read_byte(s, addr) * 3];
+ g = s->color_palette[macfb_read_byte(s, addr) * 3 + 1];
+ b = s->color_palette[macfb_read_byte(s, addr) * 3 + 2];
+ addr++;
+
+ *(uint32_t *)d = rgb_to_pixel32(r, g, b);
+ d += 4;
+ }
+}
+
+/* 16-bit color */
+static void macfb_draw_line16(MacfbState *s, uint8_t *d, uint32_t addr,
+ int width)
+{
+ uint8_t r, g, b;
+ int x;
+
+ for (x = 0; x < width; x++) {
+ uint16_t pixel;
+ pixel = (macfb_read_byte(s, addr) << 8) | macfb_read_byte(s, addr + 1);
+ r = ((pixel >> 10) & 0x1f) << 3;
+ g = ((pixel >> 5) & 0x1f) << 3;
+ b = (pixel & 0x1f) << 3;
+ addr += 2;
+
+ *(uint32_t *)d = rgb_to_pixel32(r, g, b);
+ d += 4;
+ }
+}
+
+/* 24-bit color */
+static void macfb_draw_line24(MacfbState *s, uint8_t *d, uint32_t addr,
+ int width)
+{
+ uint8_t r, g, b;
+ int x;
+
+ for (x = 0; x < width; x++) {
+ r = macfb_read_byte(s, addr + 1);
+ g = macfb_read_byte(s, addr + 2);
+ b = macfb_read_byte(s, addr + 3);
+ addr += 4;
+
+ *(uint32_t *)d = rgb_to_pixel32(r, g, b);
+ d += 4;
+ }
+}
+
+
+enum {
+ MACFB_DRAW_LINE1,
+ MACFB_DRAW_LINE2,
+ MACFB_DRAW_LINE4,
+ MACFB_DRAW_LINE8,
+ MACFB_DRAW_LINE16,
+ MACFB_DRAW_LINE24,
+ MACFB_DRAW_LINE_NB,
+};
+
+static macfb_draw_line_func * const
+ macfb_draw_line_table[MACFB_DRAW_LINE_NB] = {
+ macfb_draw_line1,
+ macfb_draw_line2,
+ macfb_draw_line4,
+ macfb_draw_line8,
+ macfb_draw_line16,
+ macfb_draw_line24,
+};
+
+static int macfb_check_dirty(MacfbState *s, DirtyBitmapSnapshot *snap,
+ ram_addr_t addr, int len)
+{
+ return memory_region_snapshot_get_dirty(&s->mem_vram, snap, addr, len);
+}
+
+static void macfb_draw_graphic(MacfbState *s)
+{
+ DisplaySurface *surface = qemu_console_surface(s->con);
+ DirtyBitmapSnapshot *snap = NULL;
+ ram_addr_t page;
+ uint32_t v = 0;
+ int y, ymin;
+ int macfb_stride = s->mode->stride;
+ macfb_draw_line_func *macfb_draw_line;
+
+ switch (s->depth) {
+ case 1:
+ v = MACFB_DRAW_LINE1;
+ break;
+ case 2:
+ v = MACFB_DRAW_LINE2;
+ break;
+ case 4:
+ v = MACFB_DRAW_LINE4;
+ break;
+ case 8:
+ v = MACFB_DRAW_LINE8;
+ break;
+ case 16:
+ v = MACFB_DRAW_LINE16;
+ break;
+ case 24:
+ v = MACFB_DRAW_LINE24;
+ break;
+ }
+
+ macfb_draw_line = macfb_draw_line_table[v];
+ assert(macfb_draw_line != NULL);
+
+ snap = memory_region_snapshot_and_clear_dirty(&s->mem_vram, 0x0,
+ memory_region_size(&s->mem_vram),
+ DIRTY_MEMORY_VGA);
+
+ ymin = -1;
+ page = s->mode->offset;
+ for (y = 0; y < s->height; y++, page += macfb_stride) {
+ if (macfb_check_dirty(s, snap, page, macfb_stride)) {
+ uint8_t *data_display;
+
+ data_display = surface_data(surface) + y * surface_stride(surface);
+ macfb_draw_line(s, data_display, page, s->width);
+
+ if (ymin < 0) {
+ ymin = y;
+ }
+ } else {
+ if (ymin >= 0) {
+ dpy_gfx_update(s->con, 0, ymin, s->width, y - ymin);
+ ymin = -1;
+ }
+ }
+ }
+
+ if (ymin >= 0) {
+ dpy_gfx_update(s->con, 0, ymin, s->width, y - ymin);
+ }
+
+ g_free(snap);
+}
+
+static void macfb_invalidate_display(void *opaque)
+{
+ MacfbState *s = opaque;
+
+ memory_region_set_dirty(&s->mem_vram, 0, MACFB_VRAM_SIZE);
+}
+
+static uint32_t macfb_sense_read(MacfbState *s)
+{
+ MacFbSense *macfb_sense;
+ uint8_t sense;
+
+ assert(s->type < ARRAY_SIZE(macfb_sense_table));
+ macfb_sense = &macfb_sense_table[s->type];
+ if (macfb_sense->sense == 0x7) {
+ /* Extended sense */
+ sense = 0;
+ if (!(macfb_sense->ext_sense & 1)) {
+ /* Pins 7-4 together */
+ if (~s->regs[DAFB_MODE_SENSE >> 2] & 3) {
+ sense = (~s->regs[DAFB_MODE_SENSE >> 2] & 7) | 3;
+ }
+ }
+ if (!(macfb_sense->ext_sense & 2)) {
+ /* Pins 10-7 together */
+ if (~s->regs[DAFB_MODE_SENSE >> 2] & 6) {
+ sense = (~s->regs[DAFB_MODE_SENSE >> 2] & 7) | 6;
+ }
+ }
+ if (!(macfb_sense->ext_sense & 4)) {
+ /* Pins 4-10 together */
+ if (~s->regs[DAFB_MODE_SENSE >> 2] & 5) {
+ sense = (~s->regs[DAFB_MODE_SENSE >> 2] & 7) | 5;
+ }
+ }
+ } else {
+ /* Normal sense */
+ sense = (~macfb_sense->sense & 7) |
+ (~s->regs[DAFB_MODE_SENSE >> 2] & 7);
+ }
+
+ trace_macfb_sense_read(sense);
+ return sense;
+}
+
+static void macfb_sense_write(MacfbState *s, uint32_t val)
+{
+ s->regs[DAFB_MODE_SENSE >> 2] = val;
+
+ trace_macfb_sense_write(val);
+ return;
+}
+
+static void macfb_update_mode(MacfbState *s)
+{
+ s->width = s->mode->width;
+ s->height = s->mode->height;
+ s->depth = s->mode->depth;
+
+ trace_macfb_update_mode(s->width, s->height, s->depth);
+ macfb_invalidate_display(s);
+}
+
+static void macfb_mode_write(MacfbState *s)
+{
+ MacFbMode *macfb_mode;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(macfb_mode_table); i++) {
+ macfb_mode = &macfb_mode_table[i];
+
+ if (s->type != macfb_mode->type) {
+ continue;
+ }
+
+ if ((s->regs[DAFB_MODE_CTRL1 >> 2] & 0xff) ==
+ (macfb_mode->mode_ctrl1 & 0xff) &&
+ (s->regs[DAFB_MODE_CTRL2 >> 2] & 0xff) ==
+ (macfb_mode->mode_ctrl2 & 0xff)) {
+ s->mode = macfb_mode;
+ macfb_update_mode(s);
+ break;
+ }
+ }
+}
+
+static MacFbMode *macfb_find_mode(MacfbDisplayType display_type,
+ uint16_t width, uint16_t height,
+ uint8_t depth)
+{
+ MacFbMode *macfb_mode;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(macfb_mode_table); i++) {
+ macfb_mode = &macfb_mode_table[i];
+
+ if (display_type == macfb_mode->type && width == macfb_mode->width &&
+ height == macfb_mode->height && depth == macfb_mode->depth) {
+ return macfb_mode;
+ }
+ }
+
+ return NULL;
+}
+
+static gchar *macfb_mode_list(void)
+{
+ GString *list = g_string_new("");
+ MacFbMode *macfb_mode;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(macfb_mode_table); i++) {
+ macfb_mode = &macfb_mode_table[i];
+
+ g_string_append_printf(list, " %dx%dx%d\n", macfb_mode->width,
+ macfb_mode->height, macfb_mode->depth);
+ }
+
+ return g_string_free(list, FALSE);
+}
+
+
+static void macfb_update_display(void *opaque)
+{
+ MacfbState *s = opaque;
+ DisplaySurface *surface = qemu_console_surface(s->con);
+
+ qemu_flush_coalesced_mmio_buffer();
+
+ if (s->width == 0 || s->height == 0) {
+ return;
+ }
+
+ if (s->width != surface_width(surface) ||
+ s->height != surface_height(surface)) {
+ qemu_console_resize(s->con, s->width, s->height);
+ }
+
+ macfb_draw_graphic(s);
+}
+
+static void macfb_update_irq(MacfbState *s)
+{
+ uint32_t irq_state = s->irq_state & s->irq_mask;
+
+ if (irq_state) {
+ qemu_irq_raise(s->irq);
+ } else {
+ qemu_irq_lower(s->irq);
+ }
+}
+
+static int64_t macfb_next_vbl(void)
+{
+ return (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + DAFB_INTR_VBL_PERIOD_NS) /
+ DAFB_INTR_VBL_PERIOD_NS * DAFB_INTR_VBL_PERIOD_NS;
+}
+
+static void macfb_vbl_timer(void *opaque)
+{
+ MacfbState *s = opaque;
+ int64_t next_vbl;
+
+ s->irq_state |= DAFB_INTR_VBL;
+ macfb_update_irq(s);
+
+ /* 60 Hz irq */
+ next_vbl = macfb_next_vbl();
+ timer_mod(s->vbl_timer, next_vbl);
+}
+
+static void macfb_reset(MacfbState *s)
+{
+ int i;
+
+ s->palette_current = 0;
+ for (i = 0; i < 256; i++) {
+ s->color_palette[i * 3] = 255 - i;
+ s->color_palette[i * 3 + 1] = 255 - i;
+ s->color_palette[i * 3 + 2] = 255 - i;
+ }
+ memset(s->vram, 0, MACFB_VRAM_SIZE);
+ macfb_invalidate_display(s);
+}
+
+static uint64_t macfb_ctrl_read(void *opaque,
+ hwaddr addr,
+ unsigned int size)
+{
+ MacfbState *s = opaque;
+ uint64_t val = 0;
+
+ switch (addr) {
+ case DAFB_MODE_VADDR1:
+ case DAFB_MODE_VADDR2:
+ case DAFB_MODE_CTRL1:
+ case DAFB_MODE_CTRL2:
+ val = s->regs[addr >> 2];
+ break;
+ case DAFB_INTR_STAT:
+ val = s->irq_state;
+ break;
+ case DAFB_MODE_SENSE:
+ val = macfb_sense_read(s);
+ break;
+ }
+
+ trace_macfb_ctrl_read(addr, val, size);
+ return val;
+}
+
+static void macfb_ctrl_write(void *opaque,
+ hwaddr addr,
+ uint64_t val,
+ unsigned int size)
+{
+ MacfbState *s = opaque;
+ int64_t next_vbl;
+
+ switch (addr) {
+ case DAFB_MODE_VADDR1:
+ case DAFB_MODE_VADDR2:
+ s->regs[addr >> 2] = val;
+ break;
+ case DAFB_MODE_CTRL1 ... DAFB_MODE_CTRL1 + 3:
+ case DAFB_MODE_CTRL2 ... DAFB_MODE_CTRL2 + 3:
+ s->regs[addr >> 2] = val;
+ if (val) {
+ macfb_mode_write(s);
+ }
+ break;
+ case DAFB_MODE_SENSE:
+ macfb_sense_write(s, val);
+ break;
+ case DAFB_INTR_MASK:
+ s->irq_mask = val;
+ if (val & DAFB_INTR_VBL) {
+ next_vbl = macfb_next_vbl();
+ timer_mod(s->vbl_timer, next_vbl);
+ } else {
+ timer_del(s->vbl_timer);
+ }
+ break;
+ case DAFB_INTR_CLEAR:
+ s->irq_state &= ~DAFB_INTR_VBL;
+ macfb_update_irq(s);
+ break;
+ case DAFB_RESET:
+ s->palette_current = 0;
+ s->irq_state &= ~DAFB_INTR_VBL;
+ macfb_update_irq(s);
+ break;
+ case DAFB_LUT:
+ s->color_palette[s->palette_current] = val;
+ s->palette_current = (s->palette_current + 1) %
+ ARRAY_SIZE(s->color_palette);
+ if (s->palette_current % 3) {
+ macfb_invalidate_display(s);
+ }
+ break;
+ }
+
+ trace_macfb_ctrl_write(addr, val, size);
+}
+
+static const MemoryRegionOps macfb_ctrl_ops = {
+ .read = macfb_ctrl_read,
+ .write = macfb_ctrl_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .impl.min_access_size = 1,
+ .impl.max_access_size = 4,
+};
+
+static int macfb_post_load(void *opaque, int version_id)
+{
+ macfb_mode_write(opaque);
+ return 0;
+}
+
+static const VMStateDescription vmstate_macfb = {
+ .name = "macfb",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .post_load = macfb_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8_ARRAY(color_palette, MacfbState, 256 * 3),
+ VMSTATE_UINT32(palette_current, MacfbState),
+ VMSTATE_UINT32_ARRAY(regs, MacfbState, MACFB_NUM_REGS),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const GraphicHwOps macfb_ops = {
+ .invalidate = macfb_invalidate_display,
+ .gfx_update = macfb_update_display,
+};
+
+static bool macfb_common_realize(DeviceState *dev, MacfbState *s, Error **errp)
+{
+ DisplaySurface *surface;
+
+ s->mode = macfb_find_mode(s->type, s->width, s->height, s->depth);
+ if (!s->mode) {
+ gchar *list;
+ error_setg(errp, "unknown display mode: width %d, height %d, depth %d",
+ s->width, s->height, s->depth);
+ list = macfb_mode_list();
+ error_append_hint(errp, "Available modes:\n%s", list);
+ g_free(list);
+
+ return false;
+ }
+
+ s->con = graphic_console_init(dev, 0, &macfb_ops, s);
+ surface = qemu_console_surface(s->con);
+
+ if (surface_bits_per_pixel(surface) != 32) {
+ error_setg(errp, "unknown host depth %d",
+ surface_bits_per_pixel(surface));
+ return false;
+ }
+
+ memory_region_init_io(&s->mem_ctrl, OBJECT(dev), &macfb_ctrl_ops, s,
+ "macfb-ctrl", 0x1000);
+
+ memory_region_init_ram(&s->mem_vram, OBJECT(dev), "macfb-vram",
+ MACFB_VRAM_SIZE, &error_abort);
+ s->vram = memory_region_get_ram_ptr(&s->mem_vram);
+ s->vram_bit_mask = MACFB_VRAM_SIZE - 1;
+ memory_region_set_coalescing(&s->mem_vram);
+
+ s->vbl_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, macfb_vbl_timer, s);
+ macfb_update_mode(s);
+ return true;
+}
+
+static void macfb_sysbus_realize(DeviceState *dev, Error **errp)
+{
+ MacfbSysBusState *s = MACFB(dev);
+ MacfbState *ms = &s->macfb;
+
+ if (!macfb_common_realize(dev, ms, errp)) {
+ return;
+ }
+
+ sysbus_init_mmio(SYS_BUS_DEVICE(s), &ms->mem_ctrl);
+ sysbus_init_mmio(SYS_BUS_DEVICE(s), &ms->mem_vram);
+
+ qdev_init_gpio_out(dev, &ms->irq, 1);
+}
+
+static void macfb_nubus_set_irq(void *opaque, int n, int level)
+{
+ MacfbNubusState *s = NUBUS_MACFB(opaque);
+ NubusDevice *nd = NUBUS_DEVICE(s);
+
+ nubus_set_irq(nd, level);
+}
+
+static void macfb_nubus_realize(DeviceState *dev, Error **errp)
+{
+ NubusDevice *nd = NUBUS_DEVICE(dev);
+ MacfbNubusState *s = NUBUS_MACFB(dev);
+ MacfbNubusDeviceClass *ndc = NUBUS_MACFB_GET_CLASS(dev);
+ MacfbState *ms = &s->macfb;
+
+ ndc->parent_realize(dev, errp);
+ if (*errp) {
+ return;
+ }
+
+ if (!macfb_common_realize(dev, ms, errp)) {
+ return;
+ }
+
+ memory_region_add_subregion(&nd->slot_mem, DAFB_BASE, &ms->mem_ctrl);
+ memory_region_add_subregion(&nd->slot_mem, VIDEO_BASE, &ms->mem_vram);
+
+ ms->irq = qemu_allocate_irq(macfb_nubus_set_irq, s, 0);
+}
+
+static void macfb_nubus_unrealize(DeviceState *dev)
+{
+ MacfbNubusState *s = NUBUS_MACFB(dev);
+ MacfbNubusDeviceClass *ndc = NUBUS_MACFB_GET_CLASS(dev);
+ MacfbState *ms = &s->macfb;
+
+ ndc->parent_unrealize(dev);
+
+ qemu_free_irq(ms->irq);
+}
+
+static void macfb_sysbus_reset(DeviceState *d)
+{
+ MacfbSysBusState *s = MACFB(d);
+ macfb_reset(&s->macfb);
+}
+
+static void macfb_nubus_reset(DeviceState *d)
+{
+ MacfbNubusState *s = NUBUS_MACFB(d);
+ macfb_reset(&s->macfb);
+}
+
+static Property macfb_sysbus_properties[] = {
+ DEFINE_PROP_UINT32("width", MacfbSysBusState, macfb.width, 640),
+ DEFINE_PROP_UINT32("height", MacfbSysBusState, macfb.height, 480),
+ DEFINE_PROP_UINT8("depth", MacfbSysBusState, macfb.depth, 8),
+ DEFINE_PROP_UINT8("display", MacfbSysBusState, macfb.type,
+ MACFB_DISPLAY_VGA),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static Property macfb_nubus_properties[] = {
+ DEFINE_PROP_UINT32("width", MacfbNubusState, macfb.width, 640),
+ DEFINE_PROP_UINT32("height", MacfbNubusState, macfb.height, 480),
+ DEFINE_PROP_UINT8("depth", MacfbNubusState, macfb.depth, 8),
+ DEFINE_PROP_UINT8("display", MacfbNubusState, macfb.type,
+ MACFB_DISPLAY_VGA),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void macfb_sysbus_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->realize = macfb_sysbus_realize;
+ dc->desc = "SysBus Macintosh framebuffer";
+ dc->reset = macfb_sysbus_reset;
+ dc->vmsd = &vmstate_macfb;
+ device_class_set_props(dc, macfb_sysbus_properties);
+}
+
+static void macfb_nubus_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ MacfbNubusDeviceClass *ndc = NUBUS_MACFB_CLASS(klass);
+
+ device_class_set_parent_realize(dc, macfb_nubus_realize,
+ &ndc->parent_realize);
+ device_class_set_parent_unrealize(dc, macfb_nubus_unrealize,
+ &ndc->parent_unrealize);
+ dc->desc = "Nubus Macintosh framebuffer";
+ dc->reset = macfb_nubus_reset;
+ dc->vmsd = &vmstate_macfb;
+ set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
+ device_class_set_props(dc, macfb_nubus_properties);
+}
+
+static TypeInfo macfb_sysbus_info = {
+ .name = TYPE_MACFB,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(MacfbSysBusState),
+ .class_init = macfb_sysbus_class_init,
+};
+
+static TypeInfo macfb_nubus_info = {
+ .name = TYPE_NUBUS_MACFB,
+ .parent = TYPE_NUBUS_DEVICE,
+ .instance_size = sizeof(MacfbNubusState),
+ .class_init = macfb_nubus_class_init,
+ .class_size = sizeof(MacfbNubusDeviceClass),
+};
+
+static void macfb_register_types(void)
+{
+ type_register_static(&macfb_sysbus_info);
+ type_register_static(&macfb_nubus_info);
+}
+
+type_init(macfb_register_types)