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49946538d2
qemu/hw/display/tcx.c
Hu Tao 49946538d2 memory: add parameter errp to memory_region_init_ram 
Add parameter errp to memory_region_init_ram and update all call sites
to pass in &error_abort.

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-09 13:41:43 +02:00

660 lines
19 KiB
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/*
* QEMU TCX Frame buffer
*
* Copyright (c) 2003-2005 Fabrice Bellard
*
* 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-common.h"
#include "ui/console.h"
#include "ui/pixel_ops.h"
#include "hw/loader.h"
#include "hw/sysbus.h"
#define TCX_ROM_FILE "QEMU,tcx.bin"
#define FCODE_MAX_ROM_SIZE 0x10000
#define MAXX 1024
#define MAXY 768
#define TCX_DAC_NREGS 16
#define TCX_THC_NREGS_8 0x081c
#define TCX_THC_NREGS_24 0x1000
#define TCX_TEC_NREGS 0x1000
#define TYPE_TCX "SUNW,tcx"
#define TCX(obj) OBJECT_CHECK(TCXState, (obj), TYPE_TCX)
typedef struct TCXState {
SysBusDevice parent_obj;
QemuConsole *con;
uint8_t *vram;
uint32_t *vram24, *cplane;
hwaddr prom_addr;
MemoryRegion rom;
MemoryRegion vram_mem;
MemoryRegion vram_8bit;
MemoryRegion vram_24bit;
MemoryRegion vram_cplane;
MemoryRegion dac;
MemoryRegion tec;
MemoryRegion thc24;
MemoryRegion thc8;
ram_addr_t vram24_offset, cplane_offset;
uint32_t vram_size;
uint32_t palette[256];
uint8_t r[256], g[256], b[256];
uint16_t width, height, depth;
uint8_t dac_index, dac_state;
} TCXState;
static void tcx_set_dirty(TCXState *s)
{
memory_region_set_dirty(&s->vram_mem, 0, MAXX * MAXY);
}
static void tcx24_set_dirty(TCXState *s)
{
memory_region_set_dirty(&s->vram_mem, s->vram24_offset, MAXX * MAXY * 4);
memory_region_set_dirty(&s->vram_mem, s->cplane_offset, MAXX * MAXY * 4);
}
static void update_palette_entries(TCXState *s, int start, int end)
{
DisplaySurface *surface = qemu_console_surface(s->con);
int i;
for (i = start; i < end; i++) {
switch (surface_bits_per_pixel(surface)) {
default:
case 8:
s->palette[i] = rgb_to_pixel8(s->r[i], s->g[i], s->b[i]);
break;
case 15:
s->palette[i] = rgb_to_pixel15(s->r[i], s->g[i], s->b[i]);
break;
case 16:
s->palette[i] = rgb_to_pixel16(s->r[i], s->g[i], s->b[i]);
break;
case 32:
if (is_surface_bgr(surface)) {
s->palette[i] = rgb_to_pixel32bgr(s->r[i], s->g[i], s->b[i]);
} else {
s->palette[i] = rgb_to_pixel32(s->r[i], s->g[i], s->b[i]);
}
break;
}
}
if (s->depth == 24) {
tcx24_set_dirty(s);
} else {
tcx_set_dirty(s);
}
}
static void tcx_draw_line32(TCXState *s1, uint8_t *d,
const uint8_t *s, int width)
{
int x;
uint8_t val;
uint32_t *p = (uint32_t *)d;
for(x = 0; x < width; x++) {
val = *s++;
*p++ = s1->palette[val];
}
}
static void tcx_draw_line16(TCXState *s1, uint8_t *d,
const uint8_t *s, int width)
{
int x;
uint8_t val;
uint16_t *p = (uint16_t *)d;
for(x = 0; x < width; x++) {
val = *s++;
*p++ = s1->palette[val];
}
}
static void tcx_draw_line8(TCXState *s1, uint8_t *d,
const uint8_t *s, int width)
{
int x;
uint8_t val;
for(x = 0; x < width; x++) {
val = *s++;
*d++ = s1->palette[val];
}
}
/*
XXX Could be much more optimal:
* detect if line/page/whole screen is in 24 bit mode
* if destination is also BGR, use memcpy
*/
static inline void tcx24_draw_line32(TCXState *s1, uint8_t *d,
const uint8_t *s, int width,
const uint32_t *cplane,
const uint32_t *s24)
{
DisplaySurface *surface = qemu_console_surface(s1->con);
int x, bgr, r, g, b;
uint8_t val, *p8;
uint32_t *p = (uint32_t *)d;
uint32_t dval;
bgr = is_surface_bgr(surface);
for(x = 0; x < width; x++, s++, s24++) {
if ((be32_to_cpu(*cplane++) & 0xff000000) == 0x03000000) {
// 24-bit direct, BGR order
p8 = (uint8_t *)s24;
p8++;
b = *p8++;
g = *p8++;
r = *p8;
if (bgr)
dval = rgb_to_pixel32bgr(r, g, b);
else
dval = rgb_to_pixel32(r, g, b);
} else {
val = *s;
dval = s1->palette[val];
}
*p++ = dval;
}
}
static inline int check_dirty(TCXState *s, ram_addr_t page, ram_addr_t page24,
ram_addr_t cpage)
{
int ret;
ret = memory_region_get_dirty(&s->vram_mem, page, TARGET_PAGE_SIZE,
DIRTY_MEMORY_VGA);
ret |= memory_region_get_dirty(&s->vram_mem, page24, TARGET_PAGE_SIZE * 4,
DIRTY_MEMORY_VGA);
ret |= memory_region_get_dirty(&s->vram_mem, cpage, TARGET_PAGE_SIZE * 4,
DIRTY_MEMORY_VGA);
return ret;
}
static inline void reset_dirty(TCXState *ts, ram_addr_t page_min,
ram_addr_t page_max, ram_addr_t page24,
ram_addr_t cpage)
{
memory_region_reset_dirty(&ts->vram_mem,
page_min,
(page_max - page_min) + TARGET_PAGE_SIZE,
DIRTY_MEMORY_VGA);
memory_region_reset_dirty(&ts->vram_mem,
page24 + page_min * 4,
(page_max - page_min) * 4 + TARGET_PAGE_SIZE,
DIRTY_MEMORY_VGA);
memory_region_reset_dirty(&ts->vram_mem,
cpage + page_min * 4,
(page_max - page_min) * 4 + TARGET_PAGE_SIZE,
DIRTY_MEMORY_VGA);
}
/* Fixed line length 1024 allows us to do nice tricks not possible on
VGA... */
static void tcx_update_display(void *opaque)
{
TCXState *ts = opaque;
DisplaySurface *surface = qemu_console_surface(ts->con);
ram_addr_t page, page_min, page_max;
int y, y_start, dd, ds;
uint8_t *d, *s;
void (*f)(TCXState *s1, uint8_t *dst, const uint8_t *src, int width);
if (surface_bits_per_pixel(surface) == 0) {
return;
}
page = 0;
y_start = -1;
page_min = -1;
page_max = 0;
d = surface_data(surface);
s = ts->vram;
dd = surface_stride(surface);
ds = 1024;
switch (surface_bits_per_pixel(surface)) {
case 32:
f = tcx_draw_line32;
break;
case 15:
case 16:
f = tcx_draw_line16;
break;
default:
case 8:
f = tcx_draw_line8;
break;
case 0:
return;
}
for(y = 0; y < ts->height; y += 4, page += TARGET_PAGE_SIZE) {
if (memory_region_get_dirty(&ts->vram_mem, page, TARGET_PAGE_SIZE,
DIRTY_MEMORY_VGA)) {
if (y_start < 0)
y_start = y;
if (page < page_min)
page_min = page;
if (page > page_max)
page_max = page;
f(ts, d, s, ts->width);
d += dd;
s += ds;
f(ts, d, s, ts->width);
d += dd;
s += ds;
f(ts, d, s, ts->width);
d += dd;
s += ds;
f(ts, d, s, ts->width);
d += dd;
s += ds;
} else {
if (y_start >= 0) {
/* flush to display */
dpy_gfx_update(ts->con, 0, y_start,
ts->width, y - y_start);
y_start = -1;
}
d += dd * 4;
s += ds * 4;
}
}
if (y_start >= 0) {
/* flush to display */
dpy_gfx_update(ts->con, 0, y_start,
ts->width, y - y_start);
}
/* reset modified pages */
if (page_max >= page_min) {
memory_region_reset_dirty(&ts->vram_mem,
page_min,
(page_max - page_min) + TARGET_PAGE_SIZE,
DIRTY_MEMORY_VGA);
}
}
static void tcx24_update_display(void *opaque)
{
TCXState *ts = opaque;
DisplaySurface *surface = qemu_console_surface(ts->con);
ram_addr_t page, page_min, page_max, cpage, page24;
int y, y_start, dd, ds;
uint8_t *d, *s;
uint32_t *cptr, *s24;
if (surface_bits_per_pixel(surface) != 32) {
return;
}
page = 0;
page24 = ts->vram24_offset;
cpage = ts->cplane_offset;
y_start = -1;
page_min = -1;
page_max = 0;
d = surface_data(surface);
s = ts->vram;
s24 = ts->vram24;
cptr = ts->cplane;
dd = surface_stride(surface);
ds = 1024;
for(y = 0; y < ts->height; y += 4, page += TARGET_PAGE_SIZE,
page24 += TARGET_PAGE_SIZE, cpage += TARGET_PAGE_SIZE) {
if (check_dirty(ts, page, page24, cpage)) {
if (y_start < 0)
y_start = y;
if (page < page_min)
page_min = page;
if (page > page_max)
page_max = page;
tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
d += dd;
s += ds;
cptr += ds;
s24 += ds;
tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
d += dd;
s += ds;
cptr += ds;
s24 += ds;
tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
d += dd;
s += ds;
cptr += ds;
s24 += ds;
tcx24_draw_line32(ts, d, s, ts->width, cptr, s24);
d += dd;
s += ds;
cptr += ds;
s24 += ds;
} else {
if (y_start >= 0) {
/* flush to display */
dpy_gfx_update(ts->con, 0, y_start,
ts->width, y - y_start);
y_start = -1;
}
d += dd * 4;
s += ds * 4;
cptr += ds * 4;
s24 += ds * 4;
}
}
if (y_start >= 0) {
/* flush to display */
dpy_gfx_update(ts->con, 0, y_start,
ts->width, y - y_start);
}
/* reset modified pages */
if (page_max >= page_min) {
reset_dirty(ts, page_min, page_max, page24, cpage);
}
}
static void tcx_invalidate_display(void *opaque)
{
TCXState *s = opaque;
tcx_set_dirty(s);
qemu_console_resize(s->con, s->width, s->height);
}
static void tcx24_invalidate_display(void *opaque)
{
TCXState *s = opaque;
tcx_set_dirty(s);
tcx24_set_dirty(s);
qemu_console_resize(s->con, s->width, s->height);
}
static int vmstate_tcx_post_load(void *opaque, int version_id)
{
TCXState *s = opaque;
update_palette_entries(s, 0, 256);
if (s->depth == 24) {
tcx24_set_dirty(s);
} else {
tcx_set_dirty(s);
}
return 0;
}
static const VMStateDescription vmstate_tcx = {
.name ="tcx",
.version_id = 4,
.minimum_version_id = 4,
.post_load = vmstate_tcx_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT16(height, TCXState),
VMSTATE_UINT16(width, TCXState),
VMSTATE_UINT16(depth, TCXState),
VMSTATE_BUFFER(r, TCXState),
VMSTATE_BUFFER(g, TCXState),
VMSTATE_BUFFER(b, TCXState),
VMSTATE_UINT8(dac_index, TCXState),
VMSTATE_UINT8(dac_state, TCXState),
VMSTATE_END_OF_LIST()
}
};
static void tcx_reset(DeviceState *d)
{
TCXState *s = TCX(d);
/* Initialize palette */
memset(s->r, 0, 256);
memset(s->g, 0, 256);
memset(s->b, 0, 256);
s->r[255] = s->g[255] = s->b[255] = 255;
update_palette_entries(s, 0, 256);
memset(s->vram, 0, MAXX*MAXY);
memory_region_reset_dirty(&s->vram_mem, 0, MAXX * MAXY * (1 + 4 + 4),
DIRTY_MEMORY_VGA);
s->dac_index = 0;
s->dac_state = 0;
}
static uint64_t tcx_dac_readl(void *opaque, hwaddr addr,
unsigned size)
{
return 0;
}
static void tcx_dac_writel(void *opaque, hwaddr addr, uint64_t val,
unsigned size)
{
TCXState *s = opaque;
switch (addr) {
case 0:
s->dac_index = val >> 24;
s->dac_state = 0;
break;
case 4:
switch (s->dac_state) {
case 0:
s->r[s->dac_index] = val >> 24;
update_palette_entries(s, s->dac_index, s->dac_index + 1);
s->dac_state++;
break;
case 1:
s->g[s->dac_index] = val >> 24;
update_palette_entries(s, s->dac_index, s->dac_index + 1);
s->dac_state++;
break;
case 2:
s->b[s->dac_index] = val >> 24;
update_palette_entries(s, s->dac_index, s->dac_index + 1);
s->dac_index = (s->dac_index + 1) & 255; // Index autoincrement
default:
s->dac_state = 0;
break;
}
break;
default:
break;
}
}
static const MemoryRegionOps tcx_dac_ops = {
.read = tcx_dac_readl,
.write = tcx_dac_writel,
.endianness = DEVICE_NATIVE_ENDIAN,
.valid = {
.min_access_size = 4,
.max_access_size = 4,
},
};
static uint64_t dummy_readl(void *opaque, hwaddr addr,
unsigned size)
{
return 0;
}
static void dummy_writel(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
}
static const MemoryRegionOps dummy_ops = {
.read = dummy_readl,
.write = dummy_writel,
.endianness = DEVICE_NATIVE_ENDIAN,
.valid = {
.min_access_size = 4,
.max_access_size = 4,
},
};
static const GraphicHwOps tcx_ops = {
.invalidate = tcx_invalidate_display,
.gfx_update = tcx_update_display,
};
static const GraphicHwOps tcx24_ops = {
.invalidate = tcx24_invalidate_display,
.gfx_update = tcx24_update_display,
};
static void tcx_initfn(Object *obj)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
TCXState *s = TCX(obj);
memory_region_init_ram(&s->rom, NULL, "tcx.prom", FCODE_MAX_ROM_SIZE,
&error_abort);
memory_region_set_readonly(&s->rom, true);
sysbus_init_mmio(sbd, &s->rom);
/* DAC */
memory_region_init_io(&s->dac, OBJECT(s), &tcx_dac_ops, s,
"tcx.dac", TCX_DAC_NREGS);
sysbus_init_mmio(sbd, &s->dac);
/* TEC (dummy) */
memory_region_init_io(&s->tec, OBJECT(s), &dummy_ops, s,
"tcx.tec", TCX_TEC_NREGS);
sysbus_init_mmio(sbd, &s->tec);
/* THC: NetBSD writes here even with 8-bit display: dummy */
memory_region_init_io(&s->thc24, OBJECT(s), &dummy_ops, s, "tcx.thc24",
TCX_THC_NREGS_24);
sysbus_init_mmio(sbd, &s->thc24);
return;
}
static void tcx_realizefn(DeviceState *dev, Error **errp)
{
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
TCXState *s = TCX(dev);
ram_addr_t vram_offset = 0;
int size, ret;
uint8_t *vram_base;
char *fcode_filename;
memory_region_init_ram(&s->vram_mem, OBJECT(s), "tcx.vram",
s->vram_size * (1 + 4 + 4), &error_abort);
vmstate_register_ram_global(&s->vram_mem);
vram_base = memory_region_get_ram_ptr(&s->vram_mem);
/* FCode ROM */
vmstate_register_ram_global(&s->rom);
fcode_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, TCX_ROM_FILE);
if (fcode_filename) {
ret = load_image_targphys(fcode_filename, s->prom_addr,
FCODE_MAX_ROM_SIZE);
if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) {
error_report("tcx: could not load prom '%s'", TCX_ROM_FILE);
}
}
/* 8-bit plane */
s->vram = vram_base;
size = s->vram_size;
memory_region_init_alias(&s->vram_8bit, OBJECT(s), "tcx.vram.8bit",
&s->vram_mem, vram_offset, size);
sysbus_init_mmio(sbd, &s->vram_8bit);
vram_offset += size;
vram_base += size;
if (s->depth == 24) {
/* 24-bit plane */
size = s->vram_size * 4;
s->vram24 = (uint32_t *)vram_base;
s->vram24_offset = vram_offset;
memory_region_init_alias(&s->vram_24bit, OBJECT(s), "tcx.vram.24bit",
&s->vram_mem, vram_offset, size);
sysbus_init_mmio(sbd, &s->vram_24bit);
vram_offset += size;
vram_base += size;
/* Control plane */
size = s->vram_size * 4;
s->cplane = (uint32_t *)vram_base;
s->cplane_offset = vram_offset;
memory_region_init_alias(&s->vram_cplane, OBJECT(s), "tcx.vram.cplane",
&s->vram_mem, vram_offset, size);
sysbus_init_mmio(sbd, &s->vram_cplane);
s->con = graphic_console_init(DEVICE(dev), 0, &tcx24_ops, s);
} else {
/* THC 8 bit (dummy) */
memory_region_init_io(&s->thc8, OBJECT(s), &dummy_ops, s, "tcx.thc8",
TCX_THC_NREGS_8);
sysbus_init_mmio(sbd, &s->thc8);
s->con = graphic_console_init(DEVICE(dev), 0, &tcx_ops, s);
}
qemu_console_resize(s->con, s->width, s->height);
}
static Property tcx_properties[] = {
DEFINE_PROP_UINT32("vram_size", TCXState, vram_size, -1),
DEFINE_PROP_UINT16("width", TCXState, width, -1),
DEFINE_PROP_UINT16("height", TCXState, height, -1),
DEFINE_PROP_UINT16("depth", TCXState, depth, -1),
DEFINE_PROP_UINT64("prom_addr", TCXState, prom_addr, -1),
DEFINE_PROP_END_OF_LIST(),
};
static void tcx_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = tcx_realizefn;
dc->reset = tcx_reset;
dc->vmsd = &vmstate_tcx;
dc->props = tcx_properties;
}
static const TypeInfo tcx_info = {
.name = TYPE_TCX,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(TCXState),
.instance_init = tcx_initfn,
.class_init = tcx_class_init,
};
static void tcx_register_types(void)
{
type_register_static(&tcx_info);
}
type_init(tcx_register_types)
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