1
2
3
4
5
6
7
8
9
10#include "qemu/osdep.h"
11#include "hw/sysbus.h"
12#include "ui/console.h"
13#include "framebuffer.h"
14#include "ui/pixel_ops.h"
15#include "qemu/timer.h"
16#include "qemu/log.h"
17
18#define PL110_CR_EN 0x001
19#define PL110_CR_BGR 0x100
20#define PL110_CR_BEBO 0x200
21#define PL110_CR_BEPO 0x400
22#define PL110_CR_PWR 0x800
23#define PL110_IE_NB 0x004
24#define PL110_IE_VC 0x008
25
26enum pl110_bppmode
27{
28 BPP_1,
29 BPP_2,
30 BPP_4,
31 BPP_8,
32 BPP_16,
33 BPP_32,
34 BPP_16_565,
35 BPP_12
36};
37
38
39
40enum pl110_version
41{
42 PL110,
43 PL110_VERSATILE,
44 PL111
45};
46
47#define TYPE_PL110 "pl110"
48#define PL110(obj) OBJECT_CHECK(PL110State, (obj), TYPE_PL110)
49
50typedef struct PL110State {
51 SysBusDevice parent_obj;
52
53 MemoryRegion iomem;
54 MemoryRegionSection fbsection;
55 QemuConsole *con;
56 QEMUTimer *vblank_timer;
57
58 int version;
59 uint32_t timing[4];
60 uint32_t cr;
61 uint32_t upbase;
62 uint32_t lpbase;
63 uint32_t int_status;
64 uint32_t int_mask;
65 int cols;
66 int rows;
67 enum pl110_bppmode bpp;
68 int invalidate;
69 uint32_t mux_ctrl;
70 uint32_t palette[256];
71 uint32_t raw_palette[128];
72 qemu_irq irq;
73} PL110State;
74
75static int vmstate_pl110_post_load(void *opaque, int version_id);
76
77static const VMStateDescription vmstate_pl110 = {
78 .name = "pl110",
79 .version_id = 2,
80 .minimum_version_id = 1,
81 .post_load = vmstate_pl110_post_load,
82 .fields = (VMStateField[]) {
83 VMSTATE_INT32(version, PL110State),
84 VMSTATE_UINT32_ARRAY(timing, PL110State, 4),
85 VMSTATE_UINT32(cr, PL110State),
86 VMSTATE_UINT32(upbase, PL110State),
87 VMSTATE_UINT32(lpbase, PL110State),
88 VMSTATE_UINT32(int_status, PL110State),
89 VMSTATE_UINT32(int_mask, PL110State),
90 VMSTATE_INT32(cols, PL110State),
91 VMSTATE_INT32(rows, PL110State),
92 VMSTATE_UINT32(bpp, PL110State),
93 VMSTATE_INT32(invalidate, PL110State),
94 VMSTATE_UINT32_ARRAY(palette, PL110State, 256),
95 VMSTATE_UINT32_ARRAY(raw_palette, PL110State, 128),
96 VMSTATE_UINT32_V(mux_ctrl, PL110State, 2),
97 VMSTATE_END_OF_LIST()
98 }
99};
100
101static const unsigned char pl110_id[] =
102{ 0x10, 0x11, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 };
103
104static const unsigned char pl111_id[] = {
105 0x11, 0x11, 0x24, 0x00, 0x0d, 0xf0, 0x05, 0xb1
106};
107
108
109
110static const unsigned char *idregs[] = {
111 pl110_id,
112
113
114
115
116
117
118 pl110_id,
119 pl111_id
120};
121
122#define BITS 8
123#include "pl110_template.h"
124#define BITS 15
125#include "pl110_template.h"
126#define BITS 16
127#include "pl110_template.h"
128#define BITS 24
129#include "pl110_template.h"
130#define BITS 32
131#include "pl110_template.h"
132
133static int pl110_enabled(PL110State *s)
134{
135 return (s->cr & PL110_CR_EN) && (s->cr & PL110_CR_PWR);
136}
137
138static void pl110_update_display(void *opaque)
139{
140 PL110State *s = (PL110State *)opaque;
141 SysBusDevice *sbd;
142 DisplaySurface *surface = qemu_console_surface(s->con);
143 drawfn* fntable;
144 drawfn fn;
145 int dest_width;
146 int src_width;
147 int bpp_offset;
148 int first;
149 int last;
150
151 if (!pl110_enabled(s)) {
152 return;
153 }
154
155 sbd = SYS_BUS_DEVICE(s);
156
157 switch (surface_bits_per_pixel(surface)) {
158 case 0:
159 return;
160 case 8:
161 fntable = pl110_draw_fn_8;
162 dest_width = 1;
163 break;
164 case 15:
165 fntable = pl110_draw_fn_15;
166 dest_width = 2;
167 break;
168 case 16:
169 fntable = pl110_draw_fn_16;
170 dest_width = 2;
171 break;
172 case 24:
173 fntable = pl110_draw_fn_24;
174 dest_width = 3;
175 break;
176 case 32:
177 fntable = pl110_draw_fn_32;
178 dest_width = 4;
179 break;
180 default:
181 fprintf(stderr, "pl110: Bad color depth\n");
182 exit(1);
183 }
184 if (s->cr & PL110_CR_BGR)
185 bpp_offset = 0;
186 else
187 bpp_offset = 24;
188
189 if ((s->version != PL111) && (s->bpp == BPP_16)) {
190
191
192
193
194
195
196
197
198
199
200
201
202 switch (s->mux_ctrl) {
203 case 3:
204 bpp_offset = (BPP_16_565 - BPP_16);
205 break;
206 case 1:
207 break;
208 case 0:
209 case 2:
210 default:
211
212 bpp_offset += (BPP_16_565 - BPP_16);
213 break;
214 }
215 }
216
217 if (s->cr & PL110_CR_BEBO)
218 fn = fntable[s->bpp + 8 + bpp_offset];
219 else if (s->cr & PL110_CR_BEPO)
220 fn = fntable[s->bpp + 16 + bpp_offset];
221 else
222 fn = fntable[s->bpp + bpp_offset];
223
224 src_width = s->cols;
225 switch (s->bpp) {
226 case BPP_1:
227 src_width >>= 3;
228 break;
229 case BPP_2:
230 src_width >>= 2;
231 break;
232 case BPP_4:
233 src_width >>= 1;
234 break;
235 case BPP_8:
236 break;
237 case BPP_16:
238 case BPP_16_565:
239 case BPP_12:
240 src_width <<= 1;
241 break;
242 case BPP_32:
243 src_width <<= 2;
244 break;
245 }
246 dest_width *= s->cols;
247 first = 0;
248 if (s->invalidate) {
249 framebuffer_update_memory_section(&s->fbsection,
250 sysbus_address_space(sbd),
251 s->upbase,
252 s->rows, src_width);
253 }
254
255 framebuffer_update_display(surface, &s->fbsection,
256 s->cols, s->rows,
257 src_width, dest_width, 0,
258 s->invalidate,
259 fn, s->palette,
260 &first, &last);
261
262 if (first >= 0) {
263 dpy_gfx_update(s->con, 0, first, s->cols, last - first + 1);
264 }
265 s->invalidate = 0;
266}
267
268static void pl110_invalidate_display(void * opaque)
269{
270 PL110State *s = (PL110State *)opaque;
271 s->invalidate = 1;
272 if (pl110_enabled(s)) {
273 qemu_console_resize(s->con, s->cols, s->rows);
274 }
275}
276
277static void pl110_update_palette(PL110State *s, int n)
278{
279 DisplaySurface *surface = qemu_console_surface(s->con);
280 int i;
281 uint32_t raw;
282 unsigned int r, g, b;
283
284 raw = s->raw_palette[n];
285 n <<= 1;
286 for (i = 0; i < 2; i++) {
287 r = (raw & 0x1f) << 3;
288 raw >>= 5;
289 g = (raw & 0x1f) << 3;
290 raw >>= 5;
291 b = (raw & 0x1f) << 3;
292
293 raw >>= 6;
294 switch (surface_bits_per_pixel(surface)) {
295 case 8:
296 s->palette[n] = rgb_to_pixel8(r, g, b);
297 break;
298 case 15:
299 s->palette[n] = rgb_to_pixel15(r, g, b);
300 break;
301 case 16:
302 s->palette[n] = rgb_to_pixel16(r, g, b);
303 break;
304 case 24:
305 case 32:
306 s->palette[n] = rgb_to_pixel32(r, g, b);
307 break;
308 }
309 n++;
310 }
311}
312
313static void pl110_resize(PL110State *s, int width, int height)
314{
315 if (width != s->cols || height != s->rows) {
316 if (pl110_enabled(s)) {
317 qemu_console_resize(s->con, width, height);
318 }
319 }
320 s->cols = width;
321 s->rows = height;
322}
323
324
325static void pl110_update(PL110State *s)
326{
327
328 if (s->int_status & s->int_mask) {
329 qemu_irq_raise(s->irq);
330 } else {
331 qemu_irq_lower(s->irq);
332 }
333}
334
335static void pl110_vblank_interrupt(void *opaque)
336{
337 PL110State *s = opaque;
338
339
340 s->int_status |= (PL110_IE_NB | PL110_IE_VC);
341 timer_mod(s->vblank_timer,
342 qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
343 NANOSECONDS_PER_SECOND / 60);
344 pl110_update(s);
345}
346
347static uint64_t pl110_read(void *opaque, hwaddr offset,
348 unsigned size)
349{
350 PL110State *s = (PL110State *)opaque;
351
352 if (offset >= 0xfe0 && offset < 0x1000) {
353 return idregs[s->version][(offset - 0xfe0) >> 2];
354 }
355 if (offset >= 0x200 && offset < 0x400) {
356 return s->raw_palette[(offset - 0x200) >> 2];
357 }
358 switch (offset >> 2) {
359 case 0:
360 return s->timing[0];
361 case 1:
362 return s->timing[1];
363 case 2:
364 return s->timing[2];
365 case 3:
366 return s->timing[3];
367 case 4:
368 return s->upbase;
369 case 5:
370 return s->lpbase;
371 case 6:
372 if (s->version != PL110) {
373 return s->cr;
374 }
375 return s->int_mask;
376 case 7:
377 if (s->version != PL110) {
378 return s->int_mask;
379 }
380 return s->cr;
381 case 8:
382 return s->int_status;
383 case 9:
384 return s->int_status & s->int_mask;
385 case 11:
386
387 return s->upbase;
388 case 12:
389 return s->lpbase;
390 default:
391 qemu_log_mask(LOG_GUEST_ERROR,
392 "pl110_read: Bad offset %x\n", (int)offset);
393 return 0;
394 }
395}
396
397static void pl110_write(void *opaque, hwaddr offset,
398 uint64_t val, unsigned size)
399{
400 PL110State *s = (PL110State *)opaque;
401 int n;
402
403
404
405 s->invalidate = 1;
406 if (offset >= 0x200 && offset < 0x400) {
407
408 n = (offset - 0x200) >> 2;
409 s->raw_palette[(offset - 0x200) >> 2] = val;
410 pl110_update_palette(s, n);
411 return;
412 }
413 switch (offset >> 2) {
414 case 0:
415 s->timing[0] = val;
416 n = ((val & 0xfc) + 4) * 4;
417 pl110_resize(s, n, s->rows);
418 break;
419 case 1:
420 s->timing[1] = val;
421 n = (val & 0x3ff) + 1;
422 pl110_resize(s, s->cols, n);
423 break;
424 case 2:
425 s->timing[2] = val;
426 break;
427 case 3:
428 s->timing[3] = val;
429 break;
430 case 4:
431 s->upbase = val;
432 break;
433 case 5:
434 s->lpbase = val;
435 break;
436 case 6:
437 if (s->version != PL110) {
438 goto control;
439 }
440 imsc:
441 s->int_mask = val;
442 pl110_update(s);
443 break;
444 case 7:
445 if (s->version != PL110) {
446 goto imsc;
447 }
448 control:
449 s->cr = val;
450 s->bpp = (val >> 1) & 7;
451 if (pl110_enabled(s)) {
452 qemu_console_resize(s->con, s->cols, s->rows);
453 timer_mod(s->vblank_timer,
454 qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
455 NANOSECONDS_PER_SECOND / 60);
456 } else {
457 timer_del(s->vblank_timer);
458 }
459 break;
460 case 10:
461 s->int_status &= ~val;
462 pl110_update(s);
463 break;
464 default:
465 qemu_log_mask(LOG_GUEST_ERROR,
466 "pl110_write: Bad offset %x\n", (int)offset);
467 }
468}
469
470static const MemoryRegionOps pl110_ops = {
471 .read = pl110_read,
472 .write = pl110_write,
473 .endianness = DEVICE_NATIVE_ENDIAN,
474};
475
476static void pl110_mux_ctrl_set(void *opaque, int line, int level)
477{
478 PL110State *s = (PL110State *)opaque;
479 s->mux_ctrl = level;
480}
481
482static int vmstate_pl110_post_load(void *opaque, int version_id)
483{
484 PL110State *s = opaque;
485
486 pl110_invalidate_display(s);
487 return 0;
488}
489
490static const GraphicHwOps pl110_gfx_ops = {
491 .invalidate = pl110_invalidate_display,
492 .gfx_update = pl110_update_display,
493};
494
495static void pl110_realize(DeviceState *dev, Error **errp)
496{
497 PL110State *s = PL110(dev);
498 SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
499
500 memory_region_init_io(&s->iomem, OBJECT(s), &pl110_ops, s, "pl110", 0x1000);
501 sysbus_init_mmio(sbd, &s->iomem);
502 sysbus_init_irq(sbd, &s->irq);
503 s->vblank_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
504 pl110_vblank_interrupt, s);
505 qdev_init_gpio_in(dev, pl110_mux_ctrl_set, 1);
506 s->con = graphic_console_init(dev, 0, &pl110_gfx_ops, s);
507}
508
509static void pl110_init(Object *obj)
510{
511 PL110State *s = PL110(obj);
512
513 s->version = PL110;
514}
515
516static void pl110_versatile_init(Object *obj)
517{
518 PL110State *s = PL110(obj);
519
520 s->version = PL110_VERSATILE;
521}
522
523static void pl111_init(Object *obj)
524{
525 PL110State *s = PL110(obj);
526
527 s->version = PL111;
528}
529
530static void pl110_class_init(ObjectClass *klass, void *data)
531{
532 DeviceClass *dc = DEVICE_CLASS(klass);
533
534 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
535 dc->vmsd = &vmstate_pl110;
536 dc->realize = pl110_realize;
537}
538
539static const TypeInfo pl110_info = {
540 .name = TYPE_PL110,
541 .parent = TYPE_SYS_BUS_DEVICE,
542 .instance_size = sizeof(PL110State),
543 .instance_init = pl110_init,
544 .class_init = pl110_class_init,
545};
546
547static const TypeInfo pl110_versatile_info = {
548 .name = "pl110_versatile",
549 .parent = TYPE_PL110,
550 .instance_init = pl110_versatile_init,
551};
552
553static const TypeInfo pl111_info = {
554 .name = "pl111",
555 .parent = TYPE_PL110,
556 .instance_init = pl111_init,
557};
558
559static void pl110_register_types(void)
560{
561 type_register_static(&pl110_info);
562 type_register_static(&pl110_versatile_info);
563 type_register_static(&pl111_info);
564}
565
566type_init(pl110_register_types)
567
