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qemu/hw/display/macfb.c
Mark Cave-Ayland e20d0b84a8 macfb: set initial value of mode control registers in macfb_common_realize() 
If booting Linux directly in the q800 machine using -kernel rather than using a
MacOS toolbox ROM, the mode control registers are never initialised,
causing macfb_mode_write() to fail to determine the current resolution after
migration. Resolve this by always setting the initial values of the mode control
registers based upon the initial macfb properties during realize.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220305155530.9265-6-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2022-03-09 09:29:10 +00:00

843 lines
23 KiB
C
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/*
* 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->regs[DAFB_INTR_STAT >> 2] &
s->regs[DAFB_INTR_MASK >> 2];
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->regs[DAFB_INTR_STAT >> 2] |= 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:
case DAFB_INTR_STAT:
val = s->regs[addr >> 2];
break;
case DAFB_MODE_SENSE:
val = macfb_sense_read(s);
break;
default:
if (addr < MACFB_CTRL_TOPADDR) {
val = s->regs[addr >> 2];
}
}
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->regs[addr >> 2] = 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->regs[DAFB_INTR_STAT >> 2] &= ~DAFB_INTR_VBL;
macfb_update_irq(s);
break;
case DAFB_RESET:
s->palette_current = 0;
s->regs[DAFB_INTR_STAT >> 2] &= ~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;
default:
if (addr < MACFB_CTRL_TOPADDR) {
s->regs[addr >> 2] = val;
}
}
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,
.post_load = macfb_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT8(type, MacfbState),
VMSTATE_UINT8_ARRAY(color_palette, MacfbState, 256 * 3),
VMSTATE_UINT32(palette_current, MacfbState),
VMSTATE_UINT32_ARRAY(regs, MacfbState, MACFB_NUM_REGS),
VMSTATE_TIMER_PTR(vbl_timer, MacfbState),
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;
}
/*
* Set mode control registers to match the mode found above so that
* macfb_mode_write() does the right thing if no MacOS toolbox ROM
* is present to initialise them
*/
s->regs[DAFB_MODE_CTRL1 >> 2] = s->mode->mode_ctrl1;
s->regs[DAFB_MODE_CTRL2 >> 2] = s->mode->mode_ctrl2;
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);
memory_region_set_log(&s->mem_vram, true, DIRTY_MEMORY_VGA);
s->vram = memory_region_get_ram_ptr(&s->mem_vram);
s->vram_bit_mask = MACFB_VRAM_SIZE - 1;
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 const VMStateDescription vmstate_macfb_sysbus = {
.name = "macfb-sysbus",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_STRUCT(macfb, MacfbSysBusState, 1, vmstate_macfb, MacfbState),
VMSTATE_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 const VMStateDescription vmstate_macfb_nubus = {
.name = "macfb-nubus",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_STRUCT(macfb, MacfbNubusState, 1, vmstate_macfb, MacfbState),
VMSTATE_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_sysbus;
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_nubus;
set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
device_class_set_props(dc, macfb_nubus_properties);
}
static const TypeInfo macfb_sysbus_info = {
.name = TYPE_MACFB,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(MacfbSysBusState),
.class_init = macfb_sysbus_class_init,
};
static const 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)
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