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-rw-r--r--hw/g364fb.c617
1 files changed, 0 insertions, 617 deletions
diff --git a/hw/g364fb.c b/hw/g364fb.c
deleted file mode 100644
index f7014e9dd8..0000000000
--- a/hw/g364fb.c
+++ /dev/null
@@ -1,617 +0,0 @@
-/*
- * QEMU G364 framebuffer Emulator.
- *
- * 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
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "hw/hw.h"
-#include "ui/console.h"
-#include "ui/pixel_ops.h"
-#include "trace.h"
-#include "hw/sysbus.h"
-
-typedef struct G364State {
- /* hardware */
- uint8_t *vram;
- 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];
- uint16_t cursor[512];
- uint32_t cursor_position;
- uint32_t ctla;
- uint32_t top_of_screen;
- uint32_t width, height; /* in pixels */
- /* display refresh support */
- QemuConsole *con;
- int depth;
- int blanked;
-} G364State;
-
-#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
-
-#define G364_PAGE_SIZE 4096
-
-static inline int check_dirty(G364State *s, ram_addr_t page)
-{
- return memory_region_get_dirty(&s->mem_vram, page, G364_PAGE_SIZE,
- DIRTY_MEMORY_VGA);
-}
-
-static inline void reset_dirty(G364State *s,
- ram_addr_t page_min, ram_addr_t page_max)
-{
- memory_region_reset_dirty(&s->mem_vram,
- page_min,
- page_max + G364_PAGE_SIZE - page_min - 1,
- DIRTY_MEMORY_VGA);
-}
-
-static void g364fb_draw_graphic8(G364State *s)
-{
- DisplaySurface *surface = qemu_console_surface(s->con);
- int i, w;
- uint8_t *vram;
- uint8_t *data_display, *dd;
- ram_addr_t page, page_min, page_max;
- int x, y;
- int xmin, xmax;
- int ymin, ymax;
- int xcursor, ycursor;
- unsigned int (*rgb_to_pixel)(unsigned int r, unsigned int g, unsigned int b);
-
- switch (surface_bits_per_pixel(surface)) {
- case 8:
- rgb_to_pixel = rgb_to_pixel8;
- w = 1;
- break;
- case 15:
- rgb_to_pixel = rgb_to_pixel15;
- w = 2;
- break;
- case 16:
- rgb_to_pixel = rgb_to_pixel16;
- w = 2;
- break;
- case 32:
- rgb_to_pixel = rgb_to_pixel32;
- w = 4;
- break;
- default:
- hw_error("g364: unknown host depth %d",
- surface_bits_per_pixel(surface));
- return;
- }
-
- page = 0;
- page_min = (ram_addr_t)-1;
- page_max = 0;
-
- x = y = 0;
- xmin = s->width;
- xmax = 0;
- ymin = s->height;
- ymax = 0;
-
- if (!(s->ctla & CTLA_NO_CURSOR)) {
- xcursor = s->cursor_position >> 12;
- ycursor = s->cursor_position & 0xfff;
- } else {
- xcursor = ycursor = -65;
- }
-
- vram = s->vram + s->top_of_screen;
- /* XXX: out of range in vram? */
- data_display = dd = surface_data(surface);
- while (y < s->height) {
- if (check_dirty(s, page)) {
- if (y < ymin)
- ymin = ymax = y;
- if (page_min == (ram_addr_t)-1)
- page_min = page;
- page_max = page;
- if (x < xmin)
- xmin = x;
- for (i = 0; i < G364_PAGE_SIZE; i++) {
- uint8_t index;
- unsigned int color;
- if (unlikely((y >= ycursor && y < ycursor + 64) &&
- (x >= xcursor && x < xcursor + 64))) {
- /* pointer area */
- int xdiff = x - xcursor;
- uint16_t curs = s->cursor[(y - ycursor) * 8 + xdiff / 8];
- int op = (curs >> ((xdiff & 7) * 2)) & 3;
- if (likely(op == 0)) {
- /* transparent */
- index = *vram;
- color = (*rgb_to_pixel)(
- s->color_palette[index][0],
- s->color_palette[index][1],
- s->color_palette[index][2]);
- } else {
- /* get cursor color */
- index = op - 1;
- color = (*rgb_to_pixel)(
- s->cursor_palette[index][0],
- s->cursor_palette[index][1],
- s->cursor_palette[index][2]);
- }
- } else {
- /* normal area */
- index = *vram;
- color = (*rgb_to_pixel)(
- s->color_palette[index][0],
- s->color_palette[index][1],
- s->color_palette[index][2]);
- }
- memcpy(dd, &color, w);
- dd += w;
- x++;
- vram++;
- if (x == s->width) {
- xmax = s->width - 1;
- y++;
- if (y == s->height) {
- ymax = s->height - 1;
- goto done;
- }
- data_display = dd = data_display + surface_stride(surface);
- xmin = 0;
- x = 0;
- }
- }
- if (x > xmax)
- xmax = x;
- if (y > ymax)
- ymax = y;
- } else {
- int dy;
- if (page_min != (ram_addr_t)-1) {
- reset_dirty(s, page_min, page_max);
- page_min = (ram_addr_t)-1;
- page_max = 0;
- dpy_gfx_update(s->con, xmin, ymin,
- xmax - xmin + 1, ymax - ymin + 1);
- xmin = s->width;
- xmax = 0;
- ymin = s->height;
- ymax = 0;
- }
- x += G364_PAGE_SIZE;
- dy = x / s->width;
- x = x % s->width;
- y += dy;
- vram += G364_PAGE_SIZE;
- data_display += dy * surface_stride(surface);
- dd = data_display + x * w;
- }
- page += G364_PAGE_SIZE;
- }
-
-done:
- if (page_min != (ram_addr_t)-1) {
- dpy_gfx_update(s->con, xmin, ymin, xmax - xmin + 1, ymax - ymin + 1);
- reset_dirty(s, page_min, page_max);
- }
-}
-
-static void g364fb_draw_blank(G364State *s)
-{
- DisplaySurface *surface = qemu_console_surface(s->con);
- int i, w;
- uint8_t *d;
-
- if (s->blanked) {
- /* Screen is already blank. No need to redraw it */
- return;
- }
-
- w = s->width * surface_bytes_per_pixel(surface);
- d = surface_data(surface);
- for (i = 0; i < s->height; i++) {
- memset(d, 0, w);
- d += surface_stride(surface);
- }
-
- dpy_gfx_update(s->con, 0, 0, s->width, s->height);
- s->blanked = 1;
-}
-
-static void g364fb_update_display(void *opaque)
-{
- G364State *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);
- }
-
- if (s->ctla & CTLA_FORCE_BLANK) {
- g364fb_draw_blank(s);
- } else if (s->depth == 8) {
- g364fb_draw_graphic8(s);
- } else {
- error_report("g364: unknown guest depth %d", s->depth);
- }
-
- qemu_irq_raise(s->irq);
-}
-
-static inline void g364fb_invalidate_display(void *opaque)
-{
- G364State *s = opaque;
-
- s->blanked = 0;
- memory_region_set_dirty(&s->mem_vram, 0, s->vram_size);
-}
-
-static void g364fb_reset(G364State *s)
-{
- qemu_irq_lower(s->irq);
-
- memset(s->color_palette, 0, sizeof(s->color_palette));
- memset(s->cursor_palette, 0, sizeof(s->cursor_palette));
- memset(s->cursor, 0, sizeof(s->cursor));
- s->cursor_position = 0;
- s->ctla = 0;
- s->top_of_screen = 0;
- s->width = s->height = 0;
- memset(s->vram, 0, s->vram_size);
- g364fb_invalidate_display(s);
-}
-
-static void g364fb_screen_dump(void *opaque, const char *filename, bool cswitch,
- Error **errp)
-{
- G364State *s = opaque;
- int ret, y, x;
- uint8_t index;
- uint8_t *data_buffer;
- FILE *f;
-
- qemu_flush_coalesced_mmio_buffer();
-
- if (s->depth != 8) {
- error_setg(errp, "g364: unknown guest depth %d", s->depth);
- return;
- }
-
- f = fopen(filename, "wb");
- if (!f) {
- error_setg(errp, "failed to open file '%s': %s", filename,
- strerror(errno));
- return;
- }
-
- if (s->ctla & CTLA_FORCE_BLANK) {
- /* blank screen */
- ret = fprintf(f, "P4\n%d %d\n", s->width, s->height);
- if (ret < 0) {
- goto write_err;
- }
- for (y = 0; y < s->height; y++)
- for (x = 0; x < s->width; x++) {
- ret = fputc(0, f);
- if (ret == EOF) {
- goto write_err;
- }
- }
- } else {
- data_buffer = s->vram + s->top_of_screen;
- ret = fprintf(f, "P6\n%d %d\n%d\n", s->width, s->height, 255);
- if (ret < 0) {
- goto write_err;
- }
- for (y = 0; y < s->height; y++)
- for (x = 0; x < s->width; x++, data_buffer++) {
- index = *data_buffer;
- ret = fputc(s->color_palette[index][0], f);
- if (ret == EOF) {
- goto write_err;
- }
- ret = fputc(s->color_palette[index][1], f);
- if (ret == EOF) {
- goto write_err;
- }
- ret = fputc(s->color_palette[index][2], f);
- if (ret == EOF) {
- goto write_err;
- }
- }
- }
-
-out:
- fclose(f);
- return;
-
-write_err:
- error_setg(errp, "failed to write to file '%s': %s", filename,
- strerror(errno));
- unlink(filename);
- goto out;
-}
-
-/* called for accesses to io ports */
-static uint64_t g364fb_ctrl_read(void *opaque,
- hwaddr addr,
- unsigned int size)
-{
- G364State *s = opaque;
- uint32_t val;
-
- if (addr >= REG_CURS_PAT && addr < REG_CURS_PAT + 0x1000) {
- /* cursor pattern */
- int idx = (addr - REG_CURS_PAT) >> 3;
- val = s->cursor[idx];
- } else if (addr >= REG_CURS_PAL && addr < REG_CURS_PAL + 0x18) {
- /* cursor palette */
- int idx = (addr - REG_CURS_PAL) >> 3;
- val = ((uint32_t)s->cursor_palette[idx][0] << 16);
- val |= ((uint32_t)s->cursor_palette[idx][1] << 8);
- val |= ((uint32_t)s->cursor_palette[idx][2] << 0);
- } else {
- switch (addr) {
- case REG_DISPLAY:
- val = s->width / 4;
- break;
- case REG_VDISPLAY:
- val = s->height * 2;
- break;
- case REG_CTLA:
- val = s->ctla;
- break;
- default:
- {
- error_report("g364: invalid read at [" TARGET_FMT_plx "]",
- addr);
- val = 0;
- break;
- }
- }
- }
-
- trace_g364fb_read(addr, val);
-
- return val;
-}
-
-static void g364fb_update_depth(G364State *s)
-{
- static const int depths[8] = { 1, 2, 4, 8, 15, 16, 0 };
- s->depth = depths[(s->ctla & 0x00700000) >> 20];
-}
-
-static void g364_invalidate_cursor_position(G364State *s)
-{
- DisplaySurface *surface = qemu_console_surface(s->con);
- int ymin, ymax, start, end;
-
- /* invalidate only near the cursor */
- ymin = s->cursor_position & 0xfff;
- ymax = MIN(s->height, ymin + 64);
- start = ymin * surface_stride(surface);
- end = (ymax + 1) * surface_stride(surface);
-
- memory_region_set_dirty(&s->mem_vram, start, end - start);
-}
-
-static void g364fb_ctrl_write(void *opaque,
- hwaddr addr,
- uint64_t val,
- unsigned int size)
-{
- G364State *s = opaque;
-
- trace_g364fb_write(addr, val);
-
- if (addr >= REG_CLR_PAL && addr < REG_CLR_PAL + 0x800) {
- /* color palette */
- int idx = (addr - REG_CLR_PAL) >> 3;
- s->color_palette[idx][0] = (val >> 16) & 0xff;
- s->color_palette[idx][1] = (val >> 8) & 0xff;
- s->color_palette[idx][2] = val & 0xff;
- g364fb_invalidate_display(s);
- } else if (addr >= REG_CURS_PAT && addr < REG_CURS_PAT + 0x1000) {
- /* cursor pattern */
- int idx = (addr - REG_CURS_PAT) >> 3;
- s->cursor[idx] = val;
- g364fb_invalidate_display(s);
- } else if (addr >= REG_CURS_PAL && addr < REG_CURS_PAL + 0x18) {
- /* cursor palette */
- int idx = (addr - REG_CURS_PAL) >> 3;
- s->cursor_palette[idx][0] = (val >> 16) & 0xff;
- s->cursor_palette[idx][1] = (val >> 8) & 0xff;
- s->cursor_palette[idx][2] = val & 0xff;
- g364fb_invalidate_display(s);
- } else {
- switch (addr) {
- case REG_BOOT: /* Boot timing */
- 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:
- s->top_of_screen = val;
- g364fb_invalidate_display(s);
- break;
- case REG_DISPLAY:
- s->width = val * 4;
- break;
- case REG_VDISPLAY:
- s->height = val / 2;
- break;
- case REG_CTLA:
- s->ctla = val;
- g364fb_update_depth(s);
- g364fb_invalidate_display(s);
- break;
- case REG_CURS_POS:
- g364_invalidate_cursor_position(s);
- s->cursor_position = val;
- g364_invalidate_cursor_position(s);
- break;
- case REG_RESET:
- g364fb_reset(s);
- break;
- default:
- error_report("g364: invalid write of 0x%" PRIx64
- " at [" TARGET_FMT_plx "]", val, addr);
- break;
- }
- }
- qemu_irq_lower(s->irq);
-}
-
-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 int g364fb_post_load(void *opaque, int version_id)
-{
- G364State *s = opaque;
-
- /* force refresh */
- g364fb_update_depth(s);
- g364fb_invalidate_display(s);
-
- return 0;
-}
-
-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()
- }
-};
-
-static void g364fb_init(DeviceState *dev, G364State *s)
-{
- s->vram = g_malloc0(s->vram_size);
-
- s->con = graphic_console_init(g364fb_update_display,
- g364fb_invalidate_display,
- g364fb_screen_dump, NULL, s);
-
- memory_region_init_io(&s->mem_ctrl, &g364fb_ctrl_ops, s, "ctrl", 0x180000);
- memory_region_init_ram_ptr(&s->mem_vram, "vram",
- s->vram_size, s->vram);
- vmstate_register_ram(&s->mem_vram, dev);
- memory_region_set_coalescing(&s->mem_vram);
-}
-
-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(dev, &s->mem_ctrl);
- sysbus_init_mmio(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 Property g364fb_sysbus_properties[] = {
- DEFINE_PROP_HEX32("vram_size", G364SysBusState, g364.vram_size,
- 8 * 1024 * 1024),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void g364fb_sysbus_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
- k->init = g364fb_sysbus_init;
- dc->desc = "G364 framebuffer";
- dc->reset = g364fb_sysbus_reset;
- dc->vmsd = &vmstate_g364fb;
- dc->props = g364fb_sysbus_properties;
-}
-
-static const TypeInfo g364fb_sysbus_info = {
- .name = "sysbus-g364",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(G364SysBusState),
- .class_init = g364fb_sysbus_class_init,
-};
-
-static void g364fb_register_types(void)
-{
- type_register_static(&g364fb_sysbus_info);
-}
-
-type_init(g364fb_register_types)
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-19 03:08:41 +0000