4 * Copyright (c) 2009 CodeSourcery
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include "framebuffer.h"
30 //#define DEBUG_SYBORG_FB
32 #ifdef DEBUG_SYBORG_FB
33 #define DPRINTF(fmt, ...) \
34 do { printf("syborg_fb: " fmt , ## __VA_ARGS__); } while (0)
35 #define BADF(fmt, ...) \
36 do { fprintf(stderr, "syborg_fb: error: " fmt , ## __VA_ARGS__); \
39 #define DPRINTF(fmt, ...) do {} while(0)
40 #define BADF(fmt, ...) \
41 do { fprintf(stderr, "syborg_fb: error: " fmt , ## __VA_ARGS__);} while (0)
52 FB_INTERRUPT_CAUSE = 7,
59 FB_PALETTE_START = 0x400 >> 2,
60 FB_PALETTE_END = FB_PALETTE_START+256-1,
63 #define FB_INT_VSYNC (1U << 0)
64 #define FB_INT_BASE_UPDATE_DONE (1U << 1)
70 /*QEMUConsole *console;*/
71 uint32_t need_update : 1;
72 uint32_t need_int : 1;
84 int rgb; /* 0 = BGR, 1 = RGB */
85 int endian; /* 0 = Little, 1 = Big */
86 uint32_t raw_palette[256];
87 uint32_t palette[256];
97 /* TODO: Implement these. */
102 #include "pixel_ops.h"
105 #include "pl110_template.h"
107 #include "pl110_template.h"
109 #include "pl110_template.h"
111 #include "pl110_template.h"
113 #include "pl110_template.h"
115 /* Update interrupts. */
116 static void syborg_fb_update(SyborgFBState *s)
118 if ((s->int_status & s->int_enable) != 0) {
119 DPRINTF("Raise IRQ\n");
120 qemu_irq_raise(s->irq);
122 DPRINTF("Lower IRQ\n");
123 qemu_irq_lower(s->irq);
127 static int syborg_fb_enabled(const SyborgFBState *s)
132 static void syborg_fb_update_palette(SyborgFBState *s)
136 unsigned int r, g, b;
139 case BPP_SRC_1: n = 2; break;
140 case BPP_SRC_2: n = 4; break;
141 case BPP_SRC_4: n = 16; break;
142 case BPP_SRC_8: n = 256; break;
146 for (i = 0; i < n; i++) {
147 raw = s->raw_palette[i];
148 r = (raw >> 16) & 0xff;
149 g = (raw >> 8) & 0xff;
151 switch (ds_get_bits_per_pixel(s->ds)) {
153 s->palette[i] = rgb_to_pixel8(r, g, b);
156 s->palette[i] = rgb_to_pixel15(r, g, b);
159 s->palette[i] = rgb_to_pixel16(r, g, b);
163 s->palette[i] = rgb_to_pixel32(r, g, b);
172 static void syborg_fb_update_display(void *opaque)
174 SyborgFBState *s = (SyborgFBState *)opaque;
183 if (!syborg_fb_enabled(s))
186 switch (ds_get_bits_per_pixel(s->ds)) {
190 fntable = pl110_draw_fn_8;
194 fntable = pl110_draw_fn_15;
198 fntable = pl110_draw_fn_16;
202 fntable = pl110_draw_fn_24;
206 fntable = pl110_draw_fn_32;
210 fprintf(stderr, "syborg_fb: Bad color depth\n");
215 s->int_status |= FB_INT_BASE_UPDATE_DONE;
228 /* Our bpp constants mostly match the PL110/PL111 but
229 * not for the 16 bit case
236 bpp_offset += s->bpp;
238 fn = fntable[bpp_offset];
241 src_width = s->pitch;
268 dest_width *= s->cols;
270 /* TODO: Implement blanking. */
272 if (s->need_update && s->bpp <= BPP_SRC_8) {
273 syborg_fb_update_palette(s);
275 framebuffer_update_display(s->ds,
276 s->base, s->cols, s->rows,
277 src_width, dest_width, 0,
282 dpy_update(s->ds, 0, first, s->cols, last - first + 1);
285 s->int_status |= FB_INT_VSYNC;
292 static void syborg_fb_invalidate_display(void * opaque)
294 SyborgFBState *s = (SyborgFBState *)opaque;
298 static uint64_t syborg_fb_read(void *opaque, target_phys_addr_t offset,
301 SyborgFBState *s = opaque;
303 DPRINTF("read reg %d\n", (int)offset);
305 switch (offset >> 2) {
307 return SYBORG_ID_FRAMEBUFFER;
325 return s->int_enable;
327 case FB_INTERRUPT_CAUSE:
328 return s->int_status;
332 case BPP_SRC_1: return 1;
333 case BPP_SRC_2: return 2;
334 case BPP_SRC_4: return 4;
335 case BPP_SRC_8: return 8;
336 case BPP_SRC_15: return 15;
337 case BPP_SRC_16: return 16;
338 case BPP_SRC_24: return 24;
339 case BPP_SRC_32: return 32;
359 if ((offset >> 2) >= FB_PALETTE_START
360 && (offset >> 2) <= FB_PALETTE_END) {
361 return s->raw_palette[(offset >> 2) - FB_PALETTE_START];
363 cpu_abort (cpu_single_env, "syborg_fb_read: Bad offset %x\n",
370 static void syborg_fb_write(void *opaque, target_phys_addr_t offset,
371 uint64_t val, unsigned size)
373 SyborgFBState *s = opaque;
375 DPRINTF("write reg %d = %d\n", (int)offset, val);
378 switch (offset >> 2) {
395 /* TODO: Implement rotation. */
407 case FB_INTERRUPT_CAUSE:
408 s->int_status &= ~val;
414 case 1: val = BPP_SRC_1; break;
415 case 2: val = BPP_SRC_2; break;
416 case 4: val = BPP_SRC_4; break;
417 case 8: val = BPP_SRC_8; break;
418 /* case 15: val = BPP_SRC_15; break; */
419 case 16: val = BPP_SRC_16; break;
420 /* case 24: val = BPP_SRC_24; break; */
421 case 32: val = BPP_SRC_32; break;
422 default: val = s->bpp; break;
432 s->endian = (val != 0);
436 /* TODO: Implement this. */
448 if ((offset >> 2) >= FB_PALETTE_START
449 && (offset >> 2) <= FB_PALETTE_END) {
450 s->raw_palette[(offset >> 2) - FB_PALETTE_START] = val;
452 cpu_abort (cpu_single_env, "syborg_fb_write: Bad offset %x\n",
459 static const MemoryRegionOps syborg_fb_ops = {
460 .read = syborg_fb_read,
461 .write = syborg_fb_write,
462 .endianness = DEVICE_NATIVE_ENDIAN,
465 static void syborg_fb_save(QEMUFile *f, void *opaque)
467 SyborgFBState *s = opaque;
470 qemu_put_be32(f, s->need_int);
471 qemu_put_be32(f, s->int_status);
472 qemu_put_be32(f, s->int_enable);
473 qemu_put_be32(f, s->enabled);
474 qemu_put_be32(f, s->base);
475 qemu_put_be32(f, s->pitch);
476 qemu_put_be32(f, s->rows);
477 qemu_put_be32(f, s->cols);
478 qemu_put_be32(f, s->bpp);
479 qemu_put_be32(f, s->rgb);
480 for (i = 0; i < 256; i++) {
481 qemu_put_be32(f, s->raw_palette[i]);
485 static int syborg_fb_load(QEMUFile *f, void *opaque, int version_id)
487 SyborgFBState *s = opaque;
493 s->need_int = qemu_get_be32(f);
494 s->int_status = qemu_get_be32(f);
495 s->int_enable = qemu_get_be32(f);
496 s->enabled = qemu_get_be32(f);
497 s->base = qemu_get_be32(f);
498 s->pitch = qemu_get_be32(f);
499 s->rows = qemu_get_be32(f);
500 s->cols = qemu_get_be32(f);
501 s->bpp = qemu_get_be32(f);
502 s->rgb = qemu_get_be32(f);
503 for (i = 0; i < 256; i++) {
504 s->raw_palette[i] = qemu_get_be32(f);
511 static int syborg_fb_init(SysBusDevice *dev)
513 SyborgFBState *s = FROM_SYSBUS(SyborgFBState, dev);
515 sysbus_init_irq(dev, &s->irq);
516 memory_region_init_io(&s->iomem, &syborg_fb_ops, s,
517 "framebuffer", 0x1000);
518 sysbus_init_mmio_region(dev, &s->iomem);
520 s->ds = graphic_console_init(syborg_fb_update_display,
521 syborg_fb_invalidate_display,
524 if (s->cols != 0 && s->rows != 0) {
525 qemu_console_resize(s->ds, s->cols, s->rows);
529 s->cols = ds_get_width(s->ds);
531 s->rows = ds_get_height(s->ds);
533 register_savevm(&dev->qdev, "syborg_framebuffer", -1, 1,
534 syborg_fb_save, syborg_fb_load, s);
538 static SysBusDeviceInfo syborg_fb_info = {
539 .init = syborg_fb_init,
540 .qdev.name = "syborg,framebuffer",
541 .qdev.size = sizeof(SyborgFBState),
542 .qdev.props = (Property[]) {
543 DEFINE_PROP_UINT32("width", SyborgFBState, cols, 0),
544 DEFINE_PROP_UINT32("height", SyborgFBState, rows, 0),
545 DEFINE_PROP_END_OF_LIST(),
549 static void syborg_fb_register_devices(void)
551 sysbus_register_withprop(&syborg_fb_info);
554 device_init(syborg_fb_register_devices)