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g364fb: convert to qdev

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Extract G364 ROM contents from device emulation to machine emulation,
so device emulation can be reused in other machines (Commodore Amiga)

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Hervé Poussineau 2011-08-26 21:20:12 +02:00 committed by Blue Swirl
parent b213b37072
commit 97a3f6ffbb
3 changed files with 165 additions and 197 deletions
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278
hw/g364fb.c
View file

@ -1,7 +1,7 @@
/*
* QEMU G364 framebuffer Emulator.
*
* Copyright (c) 2007-2009 Herve Poussineau
* Copyright (c) 2007-2011 Herve Poussineau
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@ -18,17 +18,18 @@
*/
#include "hw.h"
#include "mips.h"
#include "console.h"
#include "pixel_ops.h"
#include "trace.h"
#include "sysbus.h"
typedef struct G364State {
/* hardware */
uint8_t *vram;
ram_addr_t vram_offset;
int vram_size;
uint32_t vram_size;
qemu_irq irq;
MemoryRegion mem_vram;
MemoryRegion mem_ctrl;
/* registers */
uint8_t color_palette[256][3];
uint8_t cursor_palette[3][3];
@ -43,31 +44,32 @@ typedef struct G364State {
int blanked;
} G364State;
#define REG_ID 0x000000
#define REG_BOOT 0x080000
#define REG_DISPLAY 0x080118
#define REG_VDISPLAY 0x080150
#define REG_CTLA 0x080300
#define REG_TOP 0x080400
#define REG_CURS_PAL 0x080508
#define REG_CURS_POS 0x080638
#define REG_CLR_PAL 0x080800
#define REG_CURS_PAT 0x081000
#define REG_RESET 0x180000
#define REG_BOOT 0x000000
#define REG_DISPLAY 0x000118
#define REG_VDISPLAY 0x000150
#define REG_CTLA 0x000300
#define REG_TOP 0x000400
#define REG_CURS_PAL 0x000508
#define REG_CURS_POS 0x000638
#define REG_CLR_PAL 0x000800
#define REG_CURS_PAT 0x001000
#define REG_RESET 0x100000
#define CTLA_FORCE_BLANK 0x00000400
#define CTLA_NO_CURSOR 0x00800000
static inline int check_dirty(ram_addr_t page)
static inline int check_dirty(G364State *s, ram_addr_t page)
{
return cpu_physical_memory_get_dirty(page, VGA_DIRTY_FLAG);
return memory_region_get_dirty(&s->mem_vram, page, DIRTY_MEMORY_VGA);
}
static inline void reset_dirty(G364State *s,
ram_addr_t page_min, ram_addr_t page_max)
{
cpu_physical_memory_reset_dirty(page_min, page_max + TARGET_PAGE_SIZE - 1,
VGA_DIRTY_FLAG);
memory_region_reset_dirty(&s->mem_vram,
page_min,
page_max + TARGET_PAGE_SIZE - page_min - 1,
DIRTY_MEMORY_VGA);
}
static void g364fb_draw_graphic8(G364State *s)
@ -105,7 +107,7 @@ static void g364fb_draw_graphic8(G364State *s)
return;
}
page = s->vram_offset;
page = 0;
page_min = (ram_addr_t)-1;
page_max = 0;
@ -126,7 +128,7 @@ static void g364fb_draw_graphic8(G364State *s)
/* XXX: out of range in vram? */
data_display = dd = ds_get_data(s->ds);
while (y < s->height) {
if (check_dirty(page)) {
if (check_dirty(s, page)) {
if (y < ymin)
ymin = ymax = y;
if (page_min == (ram_addr_t)-1)
@ -266,13 +268,12 @@ static inline void g364fb_invalidate_display(void *opaque)
s->blanked = 0;
for (i = 0; i < s->vram_size; i += TARGET_PAGE_SIZE) {
cpu_physical_memory_set_dirty(s->vram_offset + i);
memory_region_set_dirty(&s->mem_vram, i);
}
}
static void g364fb_reset(void *opaque)
static void g364fb_reset(G364State *s)
{
G364State *s = opaque;
qemu_irq_lower(s->irq);
memset(s->color_palette, 0, sizeof(s->color_palette));
@ -283,7 +284,7 @@ static void g364fb_reset(void *opaque)
s->top_of_screen = 0;
s->width = s->height = 0;
memset(s->vram, 0, s->vram_size);
g364fb_invalidate_display(opaque);
g364fb_invalidate_display(s);
}
static void g364fb_screen_dump(void *opaque, const char *filename)
@ -327,7 +328,9 @@ static void g364fb_screen_dump(void *opaque, const char *filename)
}
/* called for accesses to io ports */
static uint32_t g364fb_ctrl_readl(void *opaque, target_phys_addr_t addr)
static uint64_t g364fb_ctrl_read(void *opaque,
target_phys_addr_t addr,
unsigned int size)
{
G364State *s = opaque;
uint32_t val;
@ -344,9 +347,6 @@ static uint32_t g364fb_ctrl_readl(void *opaque, target_phys_addr_t addr)
val |= ((uint32_t)s->cursor_palette[idx][2] << 0);
} else {
switch (addr) {
case REG_ID:
val = 0x10; /* Mips G364 */
break;
case REG_DISPLAY:
val = s->width / 4;
break;
@ -371,21 +371,6 @@ static uint32_t g364fb_ctrl_readl(void *opaque, target_phys_addr_t addr)
return val;
}
static uint32_t g364fb_ctrl_readw(void *opaque, target_phys_addr_t addr)
{
uint32_t v = g364fb_ctrl_readl(opaque, addr & ~0x3);
if (addr & 0x2)
return v >> 16;
else
return v & 0xffff;
}
static uint32_t g364fb_ctrl_readb(void *opaque, target_phys_addr_t addr)
{
uint32_t v = g364fb_ctrl_readl(opaque, addr & ~0x3);
return (v >> (8 * (addr & 0x3))) & 0xff;
}
static void g364fb_update_depth(G364State *s)
{
static const int depths[8] = { 1, 2, 4, 8, 15, 16, 0 };
@ -403,11 +388,14 @@ static void g364_invalidate_cursor_position(G364State *s)
end = (ymax + 1) * ds_get_linesize(s->ds);
for (i = start; i < end; i += TARGET_PAGE_SIZE) {
cpu_physical_memory_set_dirty(s->vram_offset + i);
memory_region_set_dirty(&s->mem_vram, i);
}
}
static void g364fb_ctrl_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
static void g364fb_ctrl_write(void *opaque,
target_phys_addr_t addr,
uint64_t val,
unsigned int size)
{
G364State *s = opaque;
@ -434,21 +422,20 @@ static void g364fb_ctrl_writel(void *opaque, target_phys_addr_t addr, uint32_t v
g364fb_invalidate_display(s);
} else {
switch (addr) {
case REG_ID: /* Card identifier; read-only */
case REG_BOOT: /* Boot timing */
case 0x80108: /* Line timing: half sync */
case 0x80110: /* Line timing: back porch */
case 0x80120: /* Line timing: short display */
case 0x80128: /* Frame timing: broad pulse */
case 0x80130: /* Frame timing: v sync */
case 0x80138: /* Frame timing: v preequalise */
case 0x80140: /* Frame timing: v postequalise */
case 0x80148: /* Frame timing: v blank */
case 0x80158: /* Line timing: line time */
case 0x80160: /* Frame store: line start */
case 0x80168: /* vram cycle: mem init */
case 0x80170: /* vram cycle: transfer delay */
case 0x80200: /* vram cycle: mask register */
case 0x00108: /* Line timing: half sync */
case 0x00110: /* Line timing: back porch */
case 0x00120: /* Line timing: short display */
case 0x00128: /* Frame timing: broad pulse */
case 0x00130: /* Frame timing: v sync */
case 0x00138: /* Frame timing: v preequalise */
case 0x00140: /* Frame timing: v postequalise */
case 0x00148: /* Frame timing: v blank */
case 0x00158: /* Line timing: line time */
case 0x00160: /* Frame store: line start */
case 0x00168: /* vram cycle: mem init */
case 0x00170: /* vram cycle: transfer delay */
case 0x00200: /* vram cycle: mask register */
/* ignore */
break;
case REG_TOP:
@ -483,72 +470,17 @@ static void g364fb_ctrl_writel(void *opaque, target_phys_addr_t addr, uint32_t v
qemu_irq_lower(s->irq);
}
static void g364fb_ctrl_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
{
uint32_t old_val = g364fb_ctrl_readl(opaque, addr & ~0x3);
if (addr & 0x2)
val = (val << 16) | (old_val & 0x0000ffff);
else
val = val | (old_val & 0xffff0000);
g364fb_ctrl_writel(opaque, addr & ~0x3, val);
}
static void g364fb_ctrl_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
{
uint32_t old_val = g364fb_ctrl_readl(opaque, addr & ~0x3);
switch (addr & 3) {
case 0:
val = val | (old_val & 0xffffff00);
break;
case 1:
val = (val << 8) | (old_val & 0xffff00ff);
break;
case 2:
val = (val << 16) | (old_val & 0xff00ffff);
break;
case 3:
val = (val << 24) | (old_val & 0x00ffffff);
break;
}
g364fb_ctrl_writel(opaque, addr & ~0x3, val);
}
static CPUReadMemoryFunc * const g364fb_ctrl_read[3] = {
g364fb_ctrl_readb,
g364fb_ctrl_readw,
g364fb_ctrl_readl,
static const MemoryRegionOps g364fb_ctrl_ops = {
.read = g364fb_ctrl_read,
.write = g364fb_ctrl_write,
.endianness = DEVICE_LITTLE_ENDIAN,
.impl.min_access_size = 4,
.impl.max_access_size = 4,
};
static CPUWriteMemoryFunc * const g364fb_ctrl_write[3] = {
g364fb_ctrl_writeb,
g364fb_ctrl_writew,
g364fb_ctrl_writel,
};
static int g364fb_load(QEMUFile *f, void *opaque, int version_id)
static int g364fb_post_load(void *opaque, int version_id)
{
G364State *s = opaque;
unsigned int i, vram_size;
if (version_id != 1)
return -EINVAL;
vram_size = qemu_get_be32(f);
if (vram_size < s->vram_size)
return -EINVAL;
qemu_get_buffer(f, s->vram, s->vram_size);
for (i = 0; i < 256; i++)
qemu_get_buffer(f, s->color_palette[i], 3);
for (i = 0; i < 3; i++)
qemu_get_buffer(f, s->cursor_palette[i], 3);
qemu_get_buffer(f, (uint8_t *)s->cursor, sizeof(s->cursor));
s->cursor_position = qemu_get_be32(f);
s->ctla = qemu_get_be32(f);
s->top_of_screen = qemu_get_be32(f);
s->width = qemu_get_be32(f);
s->height = qemu_get_be32(f);
/* force refresh */
g364fb_update_depth(s);
@ -557,52 +489,80 @@ static int g364fb_load(QEMUFile *f, void *opaque, int version_id)
return 0;
}
static void g364fb_save(QEMUFile *f, void *opaque)
{
G364State *s = opaque;
int i;
qemu_put_be32(f, s->vram_size);
qemu_put_buffer(f, s->vram, s->vram_size);
for (i = 0; i < 256; i++)
qemu_put_buffer(f, s->color_palette[i], 3);
for (i = 0; i < 3; i++)
qemu_put_buffer(f, s->cursor_palette[i], 3);
qemu_put_buffer(f, (uint8_t *)s->cursor, sizeof(s->cursor));
qemu_put_be32(f, s->cursor_position);
qemu_put_be32(f, s->ctla);
qemu_put_be32(f, s->top_of_screen);
qemu_put_be32(f, s->width);
qemu_put_be32(f, s->height);
static const VMStateDescription vmstate_g364fb = {
.name = "g364fb",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.post_load = g364fb_post_load,
.fields = (VMStateField[]) {
VMSTATE_VBUFFER_UINT32(vram, G364State, 1, NULL, 0, vram_size),
VMSTATE_BUFFER_UNSAFE(color_palette, G364State, 0, 256 * 3),
VMSTATE_BUFFER_UNSAFE(cursor_palette, G364State, 0, 9),
VMSTATE_UINT16_ARRAY(cursor, G364State, 512),
VMSTATE_UINT32(cursor_position, G364State),
VMSTATE_UINT32(ctla, G364State),
VMSTATE_UINT32(top_of_screen, G364State),
VMSTATE_UINT32(width, G364State),
VMSTATE_UINT32(height, G364State),
VMSTATE_END_OF_LIST()
}
};
int g364fb_mm_init(target_phys_addr_t vram_base,
target_phys_addr_t ctrl_base, int it_shift,
qemu_irq irq)
static void g364fb_init(DeviceState *dev, G364State *s)
{
G364State *s;
int io_ctrl;
s = g_malloc0(sizeof(G364State));
s->vram_size = 8 * 1024 * 1024;
s->vram_offset = qemu_ram_alloc(NULL, "g364fb.vram", s->vram_size);
s->vram = qemu_get_ram_ptr(s->vram_offset);
s->irq = irq;
qemu_register_reset(g364fb_reset, s);
register_savevm(NULL, "g364fb", 0, 1, g364fb_save, g364fb_load, s);
g364fb_reset(s);
s->vram = g_malloc0(s->vram_size);
s->ds = graphic_console_init(g364fb_update_display,
g364fb_invalidate_display,
g364fb_screen_dump, NULL, s);
cpu_register_physical_memory(vram_base, s->vram_size, s->vram_offset);
memory_region_init_io(&s->mem_ctrl, &g364fb_ctrl_ops, s, "ctrl", 0x180000);
memory_region_init_ram_ptr(&s->mem_vram, dev, "vram",
s->vram_size, s->vram);
memory_region_set_coalescing(&s->mem_vram);
}
io_ctrl = cpu_register_io_memory(g364fb_ctrl_read, g364fb_ctrl_write, s,
DEVICE_NATIVE_ENDIAN);
cpu_register_physical_memory(ctrl_base, 0x200000, io_ctrl);
typedef struct {
SysBusDevice busdev;
G364State g364;
} G364SysBusState;
static int g364fb_sysbus_init(SysBusDevice *dev)
{
G364State *s = &FROM_SYSBUS(G364SysBusState, dev)->g364;
g364fb_init(&dev->qdev, s);
sysbus_init_irq(dev, &s->irq);
sysbus_init_mmio_region(dev, &s->mem_ctrl);
sysbus_init_mmio_region(dev, &s->mem_vram);
return 0;
}
static void g364fb_sysbus_reset(DeviceState *d)
{
G364SysBusState *s = DO_UPCAST(G364SysBusState, busdev.qdev, d);
g364fb_reset(&s->g364);
}
static SysBusDeviceInfo g364fb_sysbus_info = {
.init = g364fb_sysbus_init,
.qdev.name = "sysbus-g364",
.qdev.desc = "G364 framebuffer",
.qdev.size = sizeof(G364SysBusState),
.qdev.vmsd = &vmstate_g364fb,
.qdev.reset = g364fb_sysbus_reset,
.qdev.props = (Property[]) {
DEFINE_PROP_HEX32("vram_size", G364SysBusState, g364.vram_size,
8 * 1024 * 1024),
DEFINE_PROP_END_OF_LIST(),
}
};
static void g364fb_register(void)
{
sysbus_register_withprop(&g364fb_sysbus_info);
}
device_init(g364fb_register);

5
hw/mips.h
View file

@ -8,11 +8,6 @@ PCIBus *gt64120_register(qemu_irq *pic);
/* bonito.c */
PCIBus *bonito_init(qemu_irq *pic);
/* g364fb.c */
int g364fb_mm_init(target_phys_addr_t vram_base,
target_phys_addr_t ctrl_base, int it_shift,
qemu_irq irq);
/* mipsnet.c */
void mipsnet_init(int base, qemu_irq irq, NICInfo *nd);

15
hw/mips_jazz.c
View file

@ -195,7 +195,20 @@ void mips_jazz_init (ram_addr_t ram_size,
/* Video card */
switch (jazz_model) {
case JAZZ_MAGNUM:
g364fb_mm_init(0x40000000, 0x60000000, 0, rc4030[3]);
dev = qdev_create(NULL, "sysbus-g364");
qdev_init_nofail(dev);
sysbus = sysbus_from_qdev(dev);
sysbus_mmio_map(sysbus, 0, 0x60080000);
sysbus_mmio_map(sysbus, 1, 0x40000000);
sysbus_connect_irq(sysbus, 0, rc4030[3]);
{
/* Simple ROM, so user doesn't have to provide one */
ram_addr_t rom_offset = qemu_ram_alloc(NULL, "g364fb.rom", 0x80000);
uint8_t *rom = qemu_get_ram_ptr(rom_offset);
cpu_register_physical_memory(0x60000000, 0x80000,
rom_offset | IO_MEM_ROM);
rom[0] = 0x10; /* Mips G364 */
}
break;
case JAZZ_PICA61:
isa_vga_mm_init(0x40000000, 0x60000000, 0, get_system_memory());