| /* |
| * 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" |
| #include "qemu/error-report.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 0x1000 |
| #define TCX_DHC_NREGS 0x4000 |
| #define TCX_TEC_NREGS 0x1000 |
| #define TCX_ALT_NREGS 0x8000 |
| #define TCX_STIP_NREGS 0x800000 |
| #define TCX_BLIT_NREGS 0x800000 |
| #define TCX_RSTIP_NREGS 0x800000 |
| #define TCX_RBLIT_NREGS 0x800000 |
| |
| #define TCX_THC_MISC 0x818 |
| #define TCX_THC_CURSXY 0x8fc |
| #define TCX_THC_CURSMASK 0x900 |
| #define TCX_THC_CURSBITS 0x980 |
| |
| #define TYPE_TCX "SUNW,tcx" |
| #define TCX(obj) OBJECT_CHECK(TCXState, (obj), TYPE_TCX) |
| |
| typedef struct TCXState { |
| SysBusDevice parent_obj; |
| |
| QemuConsole *con; |
| qemu_irq irq; |
| uint8_t *vram; |
| uint32_t *vram24, *cplane; |
| hwaddr prom_addr; |
| MemoryRegion rom; |
| MemoryRegion vram_mem; |
| MemoryRegion vram_8bit; |
| MemoryRegion vram_24bit; |
| MemoryRegion stip; |
| MemoryRegion blit; |
| MemoryRegion vram_cplane; |
| MemoryRegion rstip; |
| MemoryRegion rblit; |
| MemoryRegion tec; |
| MemoryRegion dac; |
| MemoryRegion thc; |
| MemoryRegion dhc; |
| MemoryRegion alt; |
| MemoryRegion thc24; |
| |
| ram_addr_t vram24_offset, cplane_offset; |
| uint32_t tmpblit; |
| uint32_t vram_size; |
| uint32_t palette[260]; |
| uint8_t r[260], g[260], b[260]; |
| uint16_t width, height, depth; |
| uint8_t dac_index, dac_state; |
| uint32_t thcmisc; |
| uint32_t cursmask[32]; |
| uint32_t cursbits[32]; |
| uint16_t cursx; |
| uint16_t cursy; |
| } TCXState; |
| |
| static void tcx_set_dirty(TCXState *s) |
| { |
| memory_region_set_dirty(&s->vram_mem, 0, MAXX * MAXY); |
| } |
| |
| static inline int tcx24_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 tcx24_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); |
| } |
| |
| 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; |
| } |
| } |
| 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]; |
| } |
| } |
| |
| static void tcx_draw_cursor32(TCXState *s1, uint8_t *d, |
| int y, int width) |
| { |
| int x, len; |
| uint32_t mask, bits; |
| uint32_t *p = (uint32_t *)d; |
| |
| y = y - s1->cursy; |
| mask = s1->cursmask[y]; |
| bits = s1->cursbits[y]; |
| len = MIN(width - s1->cursx, 32); |
| p = &p[s1->cursx]; |
| for (x = 0; x < len; x++) { |
| if (mask & 0x80000000) { |
| if (bits & 0x80000000) { |
| *p = s1->palette[259]; |
| } else { |
| *p = s1->palette[258]; |
| } |
| } |
| p++; |
| mask <<= 1; |
| bits <<= 1; |
| } |
| } |
| |
| static void tcx_draw_cursor16(TCXState *s1, uint8_t *d, |
| int y, int width) |
| { |
| int x, len; |
| uint32_t mask, bits; |
| uint16_t *p = (uint16_t *)d; |
| |
| y = y - s1->cursy; |
| mask = s1->cursmask[y]; |
| bits = s1->cursbits[y]; |
| len = MIN(width - s1->cursx, 32); |
| p = &p[s1->cursx]; |
| for (x = 0; x < len; x++) { |
| if (mask & 0x80000000) { |
| if (bits & 0x80000000) { |
| *p = s1->palette[259]; |
| } else { |
| *p = s1->palette[258]; |
| } |
| } |
| p++; |
| mask <<= 1; |
| bits <<= 1; |
| } |
| } |
| |
| static void tcx_draw_cursor8(TCXState *s1, uint8_t *d, |
| int y, int width) |
| { |
| int x, len; |
| uint32_t mask, bits; |
| |
| y = y - s1->cursy; |
| mask = s1->cursmask[y]; |
| bits = s1->cursbits[y]; |
| len = MIN(width - s1->cursx, 32); |
| d = &d[s1->cursx]; |
| for (x = 0; x < len; x++) { |
| if (mask & 0x80000000) { |
| if (bits & 0x80000000) { |
| *d = s1->palette[259]; |
| } else { |
| *d = s1->palette[258]; |
| } |
| } |
| d++; |
| mask <<= 1; |
| bits <<= 1; |
| } |
| } |
| |
| /* |
| 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) & 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 { |
| /* 8-bit pseudocolor */ |
| val = *s; |
| dval = s1->palette[val]; |
| } |
| *p++ = dval; |
| cplane++; |
| } |
| } |
| |
| /* 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); |
| void (*fc)(TCXState *s1, uint8_t *dst, int y, 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; |
| fc = tcx_draw_cursor32; |
| break; |
| case 15: |
| case 16: |
| f = tcx_draw_line16; |
| fc = tcx_draw_cursor16; |
| break; |
| default: |
| case 8: |
| f = tcx_draw_line8; |
| fc = tcx_draw_cursor8; |
| break; |
| case 0: |
| return; |
| } |
| |
| memory_region_sync_dirty_bitmap(&ts->vram_mem); |
| for (y = 0; y < ts->height; 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); |
| if (y >= ts->cursy && y < ts->cursy + 32 && ts->cursx < ts->width) { |
| fc(ts, d, y, ts->width); |
| } |
| d += dd; |
| s += ds; |
| y++; |
| |
| f(ts, d, s, ts->width); |
| if (y >= ts->cursy && y < ts->cursy + 32 && ts->cursx < ts->width) { |
| fc(ts, d, y, ts->width); |
| } |
| d += dd; |
| s += ds; |
| y++; |
| |
| f(ts, d, s, ts->width); |
| if (y >= ts->cursy && y < ts->cursy + 32 && ts->cursx < ts->width) { |
| fc(ts, d, y, ts->width); |
| } |
| d += dd; |
| s += ds; |
| y++; |
| |
| f(ts, d, s, ts->width); |
| if (y >= ts->cursy && y < ts->cursy + 32 && ts->cursx < ts->width) { |
| fc(ts, d, y, ts->width); |
| } |
| d += dd; |
| s += ds; |
| y++; |
| } 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; |
| y += 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; |
| |
| memory_region_sync_dirty_bitmap(&ts->vram_mem); |
| for (y = 0; y < ts->height; page += TARGET_PAGE_SIZE, |
| page24 += TARGET_PAGE_SIZE, cpage += TARGET_PAGE_SIZE) { |
| if (tcx24_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); |
| if (y >= ts->cursy && y < ts->cursy+32 && ts->cursx < ts->width) { |
| tcx_draw_cursor32(ts, d, y, ts->width); |
| } |
| d += dd; |
| s += ds; |
| cptr += ds; |
| s24 += ds; |
| y++; |
| tcx24_draw_line32(ts, d, s, ts->width, cptr, s24); |
| if (y >= ts->cursy && y < ts->cursy+32 && ts->cursx < ts->width) { |
| tcx_draw_cursor32(ts, d, y, ts->width); |
| } |
| d += dd; |
| s += ds; |
| cptr += ds; |
| s24 += ds; |
| y++; |
| tcx24_draw_line32(ts, d, s, ts->width, cptr, s24); |
| if (y >= ts->cursy && y < ts->cursy+32 && ts->cursx < ts->width) { |
| tcx_draw_cursor32(ts, d, y, ts->width); |
| } |
| d += dd; |
| s += ds; |
| cptr += ds; |
| s24 += ds; |
| y++; |
| tcx24_draw_line32(ts, d, s, ts->width, cptr, s24); |
| if (y >= ts->cursy && y < ts->cursy+32 && ts->cursx < ts->width) { |
| tcx_draw_cursor32(ts, d, y, ts->width); |
| } |
| d += dd; |
| s += ds; |
| cptr += ds; |
| s24 += ds; |
| y++; |
| } 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; |
| y += 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) { |
| tcx24_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); |
| 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); |
| 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, 260); |
| memset(s->g, 0, 260); |
| memset(s->b, 0, 260); |
| s->r[255] = s->g[255] = s->b[255] = 255; |
| s->r[256] = s->g[256] = s->b[256] = 255; |
| s->r[258] = s->g[258] = s->b[258] = 255; |
| update_palette_entries(s, 0, 260); |
| 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; |
| s->cursx = 0xf000; /* Put cursor off screen */ |
| s->cursy = 0xf000; |
| } |
| |
| static uint64_t tcx_dac_readl(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| TCXState *s = opaque; |
| uint32_t val = 0; |
| |
| switch (s->dac_state) { |
| case 0: |
| val = s->r[s->dac_index] << 24; |
| s->dac_state++; |
| break; |
| case 1: |
| val = s->g[s->dac_index] << 24; |
| s->dac_state++; |
| break; |
| case 2: |
| val = s->b[s->dac_index] << 24; |
| s->dac_index = (s->dac_index + 1) & 0xff; /* Index autoincrement */ |
| default: |
| s->dac_state = 0; |
| break; |
| } |
| |
| return val; |
| } |
| |
| static void tcx_dac_writel(void *opaque, hwaddr addr, uint64_t val, |
| unsigned size) |
| { |
| TCXState *s = opaque; |
| unsigned index; |
| |
| switch (addr) { |
| case 0: /* Address */ |
| s->dac_index = val >> 24; |
| s->dac_state = 0; |
| break; |
| case 4: /* Pixel colours */ |
| case 12: /* Overlay (cursor) colours */ |
| if (addr & 8) { |
| index = (s->dac_index & 3) + 256; |
| } else { |
| index = s->dac_index; |
| } |
| switch (s->dac_state) { |
| case 0: |
| s->r[index] = val >> 24; |
| update_palette_entries(s, index, index + 1); |
| s->dac_state++; |
| break; |
| case 1: |
| s->g[index] = val >> 24; |
| update_palette_entries(s, index, index + 1); |
| s->dac_state++; |
| break; |
| case 2: |
| s->b[index] = val >> 24; |
| update_palette_entries(s, index, index + 1); |
| s->dac_index = (s->dac_index + 1) & 0xff; /* Index autoincrement */ |
| default: |
| s->dac_state = 0; |
| break; |
| } |
| break; |
| default: /* Control registers */ |
| 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 tcx_stip_readl(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| return 0; |
| } |
| |
| static void tcx_stip_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| TCXState *s = opaque; |
| int i; |
| uint32_t col; |
| |
| if (!(addr & 4)) { |
| s->tmpblit = val; |
| } else { |
| addr = (addr >> 3) & 0xfffff; |
| col = cpu_to_be32(s->tmpblit); |
| if (s->depth == 24) { |
| for (i = 0; i < 32; i++) { |
| if (val & 0x80000000) { |
| s->vram[addr + i] = s->tmpblit; |
| s->vram24[addr + i] = col; |
| } |
| val <<= 1; |
| } |
| } else { |
| for (i = 0; i < 32; i++) { |
| if (val & 0x80000000) { |
| s->vram[addr + i] = s->tmpblit; |
| } |
| val <<= 1; |
| } |
| } |
| memory_region_set_dirty(&s->vram_mem, addr, 32); |
| } |
| } |
| |
| static void tcx_rstip_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| TCXState *s = opaque; |
| int i; |
| uint32_t col; |
| |
| if (!(addr & 4)) { |
| s->tmpblit = val; |
| } else { |
| addr = (addr >> 3) & 0xfffff; |
| col = cpu_to_be32(s->tmpblit); |
| if (s->depth == 24) { |
| for (i = 0; i < 32; i++) { |
| if (val & 0x80000000) { |
| s->vram[addr + i] = s->tmpblit; |
| s->vram24[addr + i] = col; |
| s->cplane[addr + i] = col; |
| } |
| val <<= 1; |
| } |
| } else { |
| for (i = 0; i < 32; i++) { |
| if (val & 0x80000000) { |
| s->vram[addr + i] = s->tmpblit; |
| } |
| val <<= 1; |
| } |
| } |
| memory_region_set_dirty(&s->vram_mem, addr, 32); |
| } |
| } |
| |
| static const MemoryRegionOps tcx_stip_ops = { |
| .read = tcx_stip_readl, |
| .write = tcx_stip_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static const MemoryRegionOps tcx_rstip_ops = { |
| .read = tcx_stip_readl, |
| .write = tcx_rstip_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static uint64_t tcx_blit_readl(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| return 0; |
| } |
| |
| static void tcx_blit_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| TCXState *s = opaque; |
| uint32_t adsr, len; |
| int i; |
| |
| if (!(addr & 4)) { |
| s->tmpblit = val; |
| } else { |
| addr = (addr >> 3) & 0xfffff; |
| adsr = val & 0xffffff; |
| len = ((val >> 24) & 0x1f) + 1; |
| if (adsr == 0xffffff) { |
| memset(&s->vram[addr], s->tmpblit, len); |
| if (s->depth == 24) { |
| val = s->tmpblit & 0xffffff; |
| val = cpu_to_be32(val); |
| for (i = 0; i < len; i++) { |
| s->vram24[addr + i] = val; |
| } |
| } |
| } else { |
| memcpy(&s->vram[addr], &s->vram[adsr], len); |
| if (s->depth == 24) { |
| memcpy(&s->vram24[addr], &s->vram24[adsr], len * 4); |
| } |
| } |
| memory_region_set_dirty(&s->vram_mem, addr, len); |
| } |
| } |
| |
| static void tcx_rblit_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| TCXState *s = opaque; |
| uint32_t adsr, len; |
| int i; |
| |
| if (!(addr & 4)) { |
| s->tmpblit = val; |
| } else { |
| addr = (addr >> 3) & 0xfffff; |
| adsr = val & 0xffffff; |
| len = ((val >> 24) & 0x1f) + 1; |
| if (adsr == 0xffffff) { |
| memset(&s->vram[addr], s->tmpblit, len); |
| if (s->depth == 24) { |
| val = s->tmpblit & 0xffffff; |
| val = cpu_to_be32(val); |
| for (i = 0; i < len; i++) { |
| s->vram24[addr + i] = val; |
| s->cplane[addr + i] = val; |
| } |
| } |
| } else { |
| memcpy(&s->vram[addr], &s->vram[adsr], len); |
| if (s->depth == 24) { |
| memcpy(&s->vram24[addr], &s->vram24[adsr], len * 4); |
| memcpy(&s->cplane[addr], &s->cplane[adsr], len * 4); |
| } |
| } |
| memory_region_set_dirty(&s->vram_mem, addr, len); |
| } |
| } |
| |
| static const MemoryRegionOps tcx_blit_ops = { |
| .read = tcx_blit_readl, |
| .write = tcx_blit_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static const MemoryRegionOps tcx_rblit_ops = { |
| .read = tcx_blit_readl, |
| .write = tcx_rblit_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static void tcx_invalidate_cursor_position(TCXState *s) |
| { |
| int ymin, ymax, start, end; |
| |
| /* invalidate only near the cursor */ |
| ymin = s->cursy; |
| if (ymin >= s->height) { |
| return; |
| } |
| ymax = MIN(s->height, ymin + 32); |
| start = ymin * 1024; |
| end = ymax * 1024; |
| |
| memory_region_set_dirty(&s->vram_mem, start, end-start); |
| } |
| |
| static uint64_t tcx_thc_readl(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| TCXState *s = opaque; |
| uint64_t val; |
| |
| if (addr == TCX_THC_MISC) { |
| val = s->thcmisc | 0x02000000; |
| } else { |
| val = 0; |
| } |
| return val; |
| } |
| |
| static void tcx_thc_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| TCXState *s = opaque; |
| |
| if (addr == TCX_THC_CURSXY) { |
| tcx_invalidate_cursor_position(s); |
| s->cursx = val >> 16; |
| s->cursy = val; |
| tcx_invalidate_cursor_position(s); |
| } else if (addr >= TCX_THC_CURSMASK && addr < TCX_THC_CURSMASK + 128) { |
| s->cursmask[(addr - TCX_THC_CURSMASK) >> 2] = val; |
| tcx_invalidate_cursor_position(s); |
| } else if (addr >= TCX_THC_CURSBITS && addr < TCX_THC_CURSBITS + 128) { |
| s->cursbits[(addr - TCX_THC_CURSBITS) >> 2] = val; |
| tcx_invalidate_cursor_position(s); |
| } else if (addr == TCX_THC_MISC) { |
| s->thcmisc = val; |
| } |
| |
| } |
| |
| static const MemoryRegionOps tcx_thc_ops = { |
| .read = tcx_thc_readl, |
| .write = tcx_thc_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static uint64_t tcx_dummy_readl(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| return 0; |
| } |
| |
| static void tcx_dummy_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| return; |
| } |
| |
| static const MemoryRegionOps tcx_dummy_ops = { |
| .read = tcx_dummy_readl, |
| .write = tcx_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); |
| |
| /* 2/STIP : Stippler */ |
| memory_region_init_io(&s->stip, OBJECT(s), &tcx_stip_ops, s, "tcx.stip", |
| TCX_STIP_NREGS); |
| sysbus_init_mmio(sbd, &s->stip); |
| |
| /* 3/BLIT : Blitter */ |
| memory_region_init_io(&s->blit, OBJECT(s), &tcx_blit_ops, s, "tcx.blit", |
| TCX_BLIT_NREGS); |
| sysbus_init_mmio(sbd, &s->blit); |
| |
| /* 5/RSTIP : Raw Stippler */ |
| memory_region_init_io(&s->rstip, OBJECT(s), &tcx_rstip_ops, s, "tcx.rstip", |
| TCX_RSTIP_NREGS); |
| sysbus_init_mmio(sbd, &s->rstip); |
| |
| /* 6/RBLIT : Raw Blitter */ |
| memory_region_init_io(&s->rblit, OBJECT(s), &tcx_rblit_ops, s, "tcx.rblit", |
| TCX_RBLIT_NREGS); |
| sysbus_init_mmio(sbd, &s->rblit); |
| |
| /* 7/TEC : ??? */ |
| memory_region_init_io(&s->tec, OBJECT(s), &tcx_dummy_ops, s, |
| "tcx.tec", TCX_TEC_NREGS); |
| sysbus_init_mmio(sbd, &s->tec); |
| |
| /* 8/CMAP : DAC */ |
| memory_region_init_io(&s->dac, OBJECT(s), &tcx_dac_ops, s, |
| "tcx.dac", TCX_DAC_NREGS); |
| sysbus_init_mmio(sbd, &s->dac); |
| |
| /* 9/THC : Cursor */ |
| memory_region_init_io(&s->thc, OBJECT(s), &tcx_thc_ops, s, "tcx.thc", |
| TCX_THC_NREGS); |
| sysbus_init_mmio(sbd, &s->thc); |
| |
| /* 11/DHC : ??? */ |
| memory_region_init_io(&s->dhc, OBJECT(s), &tcx_dummy_ops, s, "tcx.dhc", |
| TCX_DHC_NREGS); |
| sysbus_init_mmio(sbd, &s->dhc); |
| |
| /* 12/ALT : ??? */ |
| memory_region_init_io(&s->alt, OBJECT(s), &tcx_dummy_ops, s, "tcx.alt", |
| TCX_ALT_NREGS); |
| sysbus_init_mmio(sbd, &s->alt); |
| |
| 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); |
| memory_region_set_log(&s->vram_mem, true, DIRTY_MEMORY_VGA); |
| vram_base = memory_region_get_ram_ptr(&s->vram_mem); |
| |
| /* 10/ROM : 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); |
| g_free(fcode_filename); |
| if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) { |
| error_report("tcx: could not load prom '%s'", TCX_ROM_FILE); |
| } |
| } |
| |
| /* 0/DFB8 : 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; |
| |
| /* 1/DFB24 : 24bit 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; |
| |
| /* 4/RDFB32 : Raw Framebuffer */ |
| 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); |
| |
| /* 9/THC24bits : NetBSD writes here even with 8-bit display: dummy */ |
| if (s->depth == 8) { |
| memory_region_init_io(&s->thc24, OBJECT(s), &tcx_dummy_ops, s, |
| "tcx.thc24", TCX_THC_NREGS); |
| sysbus_init_mmio(sbd, &s->thc24); |
| } |
| |
| sysbus_init_irq(sbd, &s->irq); |
| |
| if (s->depth == 8) { |
| s->con = graphic_console_init(DEVICE(dev), 0, &tcx_ops, s); |
| } else { |
| s->con = graphic_console_init(DEVICE(dev), 0, &tcx24_ops, s); |
| } |
| s->thcmisc = 0; |
| |
| 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) |
