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target-i386: Fix eflags.TF/#DB handling of syscall/sysret insns
[qemu/ar7.git] / hw / display / pxa2xx_lcd.c
blob845521c5b24e08b225fdccfbfa71db4d0b9ed652
1 /*
2 * Intel XScale PXA255/270 LCDC emulation.
3 *
4 * Copyright (c) 2006 Openedhand Ltd.
5 * Written by Andrzej Zaborowski <balrog@zabor.org>
6 *
7 * This code is licensed under the GPLv2.
8 *
9 * Contributions after 2012-01-13 are licensed under the terms of the
10 * GNU GPL, version 2 or (at your option) any later version.
11 */
12
13 #include "qemu/osdep.h"
14 #include "hw/hw.h"
15 #include "ui/console.h"
16 #include "hw/arm/pxa.h"
17 #include "ui/pixel_ops.h"
18 /* FIXME: For graphic_rotate. Should probably be done in common code. */
19 #include "sysemu/sysemu.h"
20 #include "framebuffer.h"
21
22 struct DMAChannel {
23 uint32_t branch;
24 uint8_t up;
25 uint8_t palette[1024];
26 uint8_t pbuffer[1024];
27 void (*redraw)(PXA2xxLCDState *s, hwaddr addr,
28 int *miny, int *maxy);
29
30 uint32_t descriptor;
31 uint32_t source;
32 uint32_t id;
33 uint32_t command;
34 };
35
36 struct PXA2xxLCDState {
37 MemoryRegion *sysmem;
38 MemoryRegion iomem;
39 MemoryRegionSection fbsection;
40 qemu_irq irq;
41 int irqlevel;
42
43 int invalidated;
44 QemuConsole *con;
45 drawfn *line_fn[2];
46 int dest_width;
47 int xres, yres;
48 int pal_for;
49 int transp;
50 enum {
51 pxa_lcdc_2bpp = 1,
52 pxa_lcdc_4bpp = 2,
53 pxa_lcdc_8bpp = 3,
54 pxa_lcdc_16bpp = 4,
55 pxa_lcdc_18bpp = 5,
56 pxa_lcdc_18pbpp = 6,
57 pxa_lcdc_19bpp = 7,
58 pxa_lcdc_19pbpp = 8,
59 pxa_lcdc_24bpp = 9,
60 pxa_lcdc_25bpp = 10,
61 } bpp;
62
63 uint32_t control[6];
64 uint32_t status[2];
65 uint32_t ovl1c[2];
66 uint32_t ovl2c[2];
67 uint32_t ccr;
68 uint32_t cmdcr;
69 uint32_t trgbr;
70 uint32_t tcr;
71 uint32_t liidr;
72 uint8_t bscntr;
73
74 struct DMAChannel dma_ch[7];
75
76 qemu_irq vsync_cb;
77 int orientation;
78 };
79
80 typedef struct QEMU_PACKED {
81 uint32_t fdaddr;
82 uint32_t fsaddr;
83 uint32_t fidr;
84 uint32_t ldcmd;
85 } PXAFrameDescriptor;
86
87 #define LCCR0 0x000 /* LCD Controller Control register 0 */
88 #define LCCR1 0x004 /* LCD Controller Control register 1 */
89 #define LCCR2 0x008 /* LCD Controller Control register 2 */
90 #define LCCR3 0x00c /* LCD Controller Control register 3 */
91 #define LCCR4 0x010 /* LCD Controller Control register 4 */
92 #define LCCR5 0x014 /* LCD Controller Control register 5 */
93
94 #define FBR0 0x020 /* DMA Channel 0 Frame Branch register */
95 #define FBR1 0x024 /* DMA Channel 1 Frame Branch register */
96 #define FBR2 0x028 /* DMA Channel 2 Frame Branch register */
97 #define FBR3 0x02c /* DMA Channel 3 Frame Branch register */
98 #define FBR4 0x030 /* DMA Channel 4 Frame Branch register */
99 #define FBR5 0x110 /* DMA Channel 5 Frame Branch register */
100 #define FBR6 0x114 /* DMA Channel 6 Frame Branch register */
101
102 #define LCSR1 0x034 /* LCD Controller Status register 1 */
103 #define LCSR0 0x038 /* LCD Controller Status register 0 */
104 #define LIIDR 0x03c /* LCD Controller Interrupt ID register */
105
106 #define TRGBR 0x040 /* TMED RGB Seed register */
107 #define TCR 0x044 /* TMED Control register */
108
109 #define OVL1C1 0x050 /* Overlay 1 Control register 1 */
110 #define OVL1C2 0x060 /* Overlay 1 Control register 2 */
111 #define OVL2C1 0x070 /* Overlay 2 Control register 1 */
112 #define OVL2C2 0x080 /* Overlay 2 Control register 2 */
113 #define CCR 0x090 /* Cursor Control register */
114
115 #define CMDCR 0x100 /* Command Control register */
116 #define PRSR 0x104 /* Panel Read Status register */
117
118 #define PXA_LCDDMA_CHANS 7
119 #define DMA_FDADR 0x00 /* Frame Descriptor Address register */
120 #define DMA_FSADR 0x04 /* Frame Source Address register */
121 #define DMA_FIDR 0x08 /* Frame ID register */
122 #define DMA_LDCMD 0x0c /* Command register */
123
124 /* LCD Buffer Strength Control register */
125 #define BSCNTR 0x04000054
126
127 /* Bitfield masks */
128 #define LCCR0_ENB (1 << 0)
129 #define LCCR0_CMS (1 << 1)
130 #define LCCR0_SDS (1 << 2)
131 #define LCCR0_LDM (1 << 3)
132 #define LCCR0_SOFM0 (1 << 4)
133 #define LCCR0_IUM (1 << 5)
134 #define LCCR0_EOFM0 (1 << 6)
135 #define LCCR0_PAS (1 << 7)
136 #define LCCR0_DPD (1 << 9)
137 #define LCCR0_DIS (1 << 10)
138 #define LCCR0_QDM (1 << 11)
139 #define LCCR0_PDD (0xff << 12)
140 #define LCCR0_BSM0 (1 << 20)
141 #define LCCR0_OUM (1 << 21)
142 #define LCCR0_LCDT (1 << 22)
143 #define LCCR0_RDSTM (1 << 23)
144 #define LCCR0_CMDIM (1 << 24)
145 #define LCCR0_OUC (1 << 25)
146 #define LCCR0_LDDALT (1 << 26)
147 #define LCCR1_PPL(x) ((x) & 0x3ff)
148 #define LCCR2_LPP(x) ((x) & 0x3ff)
149 #define LCCR3_API (15 << 16)
150 #define LCCR3_BPP(x) ((((x) >> 24) & 7) | (((x) >> 26) & 8))
151 #define LCCR3_PDFOR(x) (((x) >> 30) & 3)
152 #define LCCR4_K1(x) (((x) >> 0) & 7)
153 #define LCCR4_K2(x) (((x) >> 3) & 7)
154 #define LCCR4_K3(x) (((x) >> 6) & 7)
155 #define LCCR4_PALFOR(x) (((x) >> 15) & 3)
156 #define LCCR5_SOFM(ch) (1 << (ch - 1))
157 #define LCCR5_EOFM(ch) (1 << (ch + 7))
158 #define LCCR5_BSM(ch) (1 << (ch + 15))
159 #define LCCR5_IUM(ch) (1 << (ch + 23))
160 #define OVLC1_EN (1 << 31)
161 #define CCR_CEN (1 << 31)
162 #define FBR_BRA (1 << 0)
163 #define FBR_BINT (1 << 1)
164 #define FBR_SRCADDR (0xfffffff << 4)
165 #define LCSR0_LDD (1 << 0)
166 #define LCSR0_SOF0 (1 << 1)
167 #define LCSR0_BER (1 << 2)
168 #define LCSR0_ABC (1 << 3)
169 #define LCSR0_IU0 (1 << 4)
170 #define LCSR0_IU1 (1 << 5)
171 #define LCSR0_OU (1 << 6)
172 #define LCSR0_QD (1 << 7)
173 #define LCSR0_EOF0 (1 << 8)
174 #define LCSR0_BS0 (1 << 9)
175 #define LCSR0_SINT (1 << 10)
176 #define LCSR0_RDST (1 << 11)
177 #define LCSR0_CMDINT (1 << 12)
178 #define LCSR0_BERCH(x) (((x) & 7) << 28)
179 #define LCSR1_SOF(ch) (1 << (ch - 1))
180 #define LCSR1_EOF(ch) (1 << (ch + 7))
181 #define LCSR1_BS(ch) (1 << (ch + 15))
182 #define LCSR1_IU(ch) (1 << (ch + 23))
183 #define LDCMD_LENGTH(x) ((x) & 0x001ffffc)
184 #define LDCMD_EOFINT (1 << 21)
185 #define LDCMD_SOFINT (1 << 22)
186 #define LDCMD_PAL (1 << 26)
187
188 /* Route internal interrupt lines to the global IC */
189 static void pxa2xx_lcdc_int_update(PXA2xxLCDState *s)
190 {
191 int level = 0;
192 level |= (s->status[0] & LCSR0_LDD) && !(s->control[0] & LCCR0_LDM);
193 level |= (s->status[0] & LCSR0_SOF0) && !(s->control[0] & LCCR0_SOFM0);
194 level |= (s->status[0] & LCSR0_IU0) && !(s->control[0] & LCCR0_IUM);
195 level |= (s->status[0] & LCSR0_IU1) && !(s->control[5] & LCCR5_IUM(1));
196 level |= (s->status[0] & LCSR0_OU) && !(s->control[0] & LCCR0_OUM);
197 level |= (s->status[0] & LCSR0_QD) && !(s->control[0] & LCCR0_QDM);
198 level |= (s->status[0] & LCSR0_EOF0) && !(s->control[0] & LCCR0_EOFM0);
199 level |= (s->status[0] & LCSR0_BS0) && !(s->control[0] & LCCR0_BSM0);
200 level |= (s->status[0] & LCSR0_RDST) && !(s->control[0] & LCCR0_RDSTM);
201 level |= (s->status[0] & LCSR0_CMDINT) && !(s->control[0] & LCCR0_CMDIM);
202 level |= (s->status[1] & ~s->control[5]);
203
204 qemu_set_irq(s->irq, !!level);
205 s->irqlevel = level;
206 }
207
208 /* Set Branch Status interrupt high and poke associated registers */
209 static inline void pxa2xx_dma_bs_set(PXA2xxLCDState *s, int ch)
210 {
211 int unmasked;
212 if (ch == 0) {
213 s->status[0] |= LCSR0_BS0;
214 unmasked = !(s->control[0] & LCCR0_BSM0);
215 } else {
216 s->status[1] |= LCSR1_BS(ch);
217 unmasked = !(s->control[5] & LCCR5_BSM(ch));
218 }
219
220 if (unmasked) {
221 if (s->irqlevel)
222 s->status[0] |= LCSR0_SINT;
223 else
224 s->liidr = s->dma_ch[ch].id;
225 }
226 }
227
228 /* Set Start Of Frame Status interrupt high and poke associated registers */
229 static inline void pxa2xx_dma_sof_set(PXA2xxLCDState *s, int ch)
230 {
231 int unmasked;
232 if (!(s->dma_ch[ch].command & LDCMD_SOFINT))
233 return;
234
235 if (ch == 0) {
236 s->status[0] |= LCSR0_SOF0;
237 unmasked = !(s->control[0] & LCCR0_SOFM0);
238 } else {
239 s->status[1] |= LCSR1_SOF(ch);
240 unmasked = !(s->control[5] & LCCR5_SOFM(ch));
241 }
242
243 if (unmasked) {
244 if (s->irqlevel)
245 s->status[0] |= LCSR0_SINT;
246 else
247 s->liidr = s->dma_ch[ch].id;
248 }
249 }
250
251 /* Set End Of Frame Status interrupt high and poke associated registers */
252 static inline void pxa2xx_dma_eof_set(PXA2xxLCDState *s, int ch)
253 {
254 int unmasked;
255 if (!(s->dma_ch[ch].command & LDCMD_EOFINT))
256 return;
257
258 if (ch == 0) {
259 s->status[0] |= LCSR0_EOF0;
260 unmasked = !(s->control[0] & LCCR0_EOFM0);
261 } else {
262 s->status[1] |= LCSR1_EOF(ch);
263 unmasked = !(s->control[5] & LCCR5_EOFM(ch));
264 }
265
266 if (unmasked) {
267 if (s->irqlevel)
268 s->status[0] |= LCSR0_SINT;
269 else
270 s->liidr = s->dma_ch[ch].id;
271 }
272 }
273
274 /* Set Bus Error Status interrupt high and poke associated registers */
275 static inline void pxa2xx_dma_ber_set(PXA2xxLCDState *s, int ch)
276 {
277 s->status[0] |= LCSR0_BERCH(ch) | LCSR0_BER;
278 if (s->irqlevel)
279 s->status[0] |= LCSR0_SINT;
280 else
281 s->liidr = s->dma_ch[ch].id;
282 }
283
284 /* Load new Frame Descriptors from DMA */
285 static void pxa2xx_descriptor_load(PXA2xxLCDState *s)
286 {
287 PXAFrameDescriptor desc;
288 hwaddr descptr;
289 int i;
290
291 for (i = 0; i < PXA_LCDDMA_CHANS; i ++) {
292 s->dma_ch[i].source = 0;
293
294 if (!s->dma_ch[i].up)
295 continue;
296
297 if (s->dma_ch[i].branch & FBR_BRA) {
298 descptr = s->dma_ch[i].branch & FBR_SRCADDR;
299 if (s->dma_ch[i].branch & FBR_BINT)
300 pxa2xx_dma_bs_set(s, i);
301 s->dma_ch[i].branch &= ~FBR_BRA;
302 } else
303 descptr = s->dma_ch[i].descriptor;
304
305 if (!((descptr >= PXA2XX_SDRAM_BASE && descptr +
306 sizeof(desc) <= PXA2XX_SDRAM_BASE + ram_size) ||
307 (descptr >= PXA2XX_INTERNAL_BASE && descptr + sizeof(desc) <=
308 PXA2XX_INTERNAL_BASE + PXA2XX_INTERNAL_SIZE))) {
309 continue;
310 }
311
312 cpu_physical_memory_read(descptr, &desc, sizeof(desc));
313 s->dma_ch[i].descriptor = le32_to_cpu(desc.fdaddr);
314 s->dma_ch[i].source = le32_to_cpu(desc.fsaddr);
315 s->dma_ch[i].id = le32_to_cpu(desc.fidr);
316 s->dma_ch[i].command = le32_to_cpu(desc.ldcmd);
317 }
318 }
319
320 static uint64_t pxa2xx_lcdc_read(void *opaque, hwaddr offset,
321 unsigned size)
322 {
323 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
324 int ch;
325
326 switch (offset) {
327 case LCCR0:
328 return s->control[0];
329 case LCCR1:
330 return s->control[1];
331 case LCCR2:
332 return s->control[2];
333 case LCCR3:
334 return s->control[3];
335 case LCCR4:
336 return s->control[4];
337 case LCCR5:
338 return s->control[5];
339
340 case OVL1C1:
341 return s->ovl1c[0];
342 case OVL1C2:
343 return s->ovl1c[1];
344 case OVL2C1:
345 return s->ovl2c[0];
346 case OVL2C2:
347 return s->ovl2c[1];
348
349 case CCR:
350 return s->ccr;
351
352 case CMDCR:
353 return s->cmdcr;
354
355 case TRGBR:
356 return s->trgbr;
357 case TCR:
358 return s->tcr;
359
360 case 0x200 ... 0x1000: /* DMA per-channel registers */
361 ch = (offset - 0x200) >> 4;
362 if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS))
363 goto fail;
364
365 switch (offset & 0xf) {
366 case DMA_FDADR:
367 return s->dma_ch[ch].descriptor;
368 case DMA_FSADR:
369 return s->dma_ch[ch].source;
370 case DMA_FIDR:
371 return s->dma_ch[ch].id;
372 case DMA_LDCMD:
373 return s->dma_ch[ch].command;
374 default:
375 goto fail;
376 }
377
378 case FBR0:
379 return s->dma_ch[0].branch;
380 case FBR1:
381 return s->dma_ch[1].branch;
382 case FBR2:
383 return s->dma_ch[2].branch;
384 case FBR3:
385 return s->dma_ch[3].branch;
386 case FBR4:
387 return s->dma_ch[4].branch;
388 case FBR5:
389 return s->dma_ch[5].branch;
390 case FBR6:
391 return s->dma_ch[6].branch;
392
393 case BSCNTR:
394 return s->bscntr;
395
396 case PRSR:
397 return 0;
398
399 case LCSR0:
400 return s->status[0];
401 case LCSR1:
402 return s->status[1];
403 case LIIDR:
404 return s->liidr;
405
406 default:
407 fail:
408 hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
409 }
410
411 return 0;
412 }
413
414 static void pxa2xx_lcdc_write(void *opaque, hwaddr offset,
415 uint64_t value, unsigned size)
416 {
417 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
418 int ch;
419
420 switch (offset) {
421 case LCCR0:
422 /* ACK Quick Disable done */
423 if ((s->control[0] & LCCR0_ENB) && !(value & LCCR0_ENB))
424 s->status[0] |= LCSR0_QD;
425
426 if (!(s->control[0] & LCCR0_LCDT) && (value & LCCR0_LCDT))
427 printf("%s: internal frame buffer unsupported\n", __FUNCTION__);
428
429 if ((s->control[3] & LCCR3_API) &&
430 (value & LCCR0_ENB) && !(value & LCCR0_LCDT))
431 s->status[0] |= LCSR0_ABC;
432
433 s->control[0] = value & 0x07ffffff;
434 pxa2xx_lcdc_int_update(s);
435
436 s->dma_ch[0].up = !!(value & LCCR0_ENB);
437 s->dma_ch[1].up = (s->ovl1c[0] & OVLC1_EN) || (value & LCCR0_SDS);
438 break;
439
440 case LCCR1:
441 s->control[1] = value;
442 break;
443
444 case LCCR2:
445 s->control[2] = value;
446 break;
447
448 case LCCR3:
449 s->control[3] = value & 0xefffffff;
450 s->bpp = LCCR3_BPP(value);
451 break;
452
453 case LCCR4:
454 s->control[4] = value & 0x83ff81ff;
455 break;
456
457 case LCCR5:
458 s->control[5] = value & 0x3f3f3f3f;
459 break;
460
461 case OVL1C1:
462 if (!(s->ovl1c[0] & OVLC1_EN) && (value & OVLC1_EN))
463 printf("%s: Overlay 1 not supported\n", __FUNCTION__);
464
465 s->ovl1c[0] = value & 0x80ffffff;
466 s->dma_ch[1].up = (value & OVLC1_EN) || (s->control[0] & LCCR0_SDS);
467 break;
468
469 case OVL1C2:
470 s->ovl1c[1] = value & 0x000fffff;
471 break;
472
473 case OVL2C1:
474 if (!(s->ovl2c[0] & OVLC1_EN) && (value & OVLC1_EN))
475 printf("%s: Overlay 2 not supported\n", __FUNCTION__);
476
477 s->ovl2c[0] = value & 0x80ffffff;
478 s->dma_ch[2].up = !!(value & OVLC1_EN);
479 s->dma_ch[3].up = !!(value & OVLC1_EN);
480 s->dma_ch[4].up = !!(value & OVLC1_EN);
481 break;
482
483 case OVL2C2:
484 s->ovl2c[1] = value & 0x007fffff;
485 break;
486
487 case CCR:
488 if (!(s->ccr & CCR_CEN) && (value & CCR_CEN))
489 printf("%s: Hardware cursor unimplemented\n", __FUNCTION__);
490
491 s->ccr = value & 0x81ffffe7;
492 s->dma_ch[5].up = !!(value & CCR_CEN);
493 break;
494
495 case CMDCR:
496 s->cmdcr = value & 0xff;
497 break;
498
499 case TRGBR:
500 s->trgbr = value & 0x00ffffff;
501 break;
502
503 case TCR:
504 s->tcr = value & 0x7fff;
505 break;
506
507 case 0x200 ... 0x1000: /* DMA per-channel registers */
508 ch = (offset - 0x200) >> 4;
509 if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS))
510 goto fail;
511
512 switch (offset & 0xf) {
513 case DMA_FDADR:
514 s->dma_ch[ch].descriptor = value & 0xfffffff0;
515 break;
516
517 default:
518 goto fail;
519 }
520 break;
521
522 case FBR0:
523 s->dma_ch[0].branch = value & 0xfffffff3;
524 break;
525 case FBR1:
526 s->dma_ch[1].branch = value & 0xfffffff3;
527 break;
528 case FBR2:
529 s->dma_ch[2].branch = value & 0xfffffff3;
530 break;
531 case FBR3:
532 s->dma_ch[3].branch = value & 0xfffffff3;
533 break;
534 case FBR4:
535 s->dma_ch[4].branch = value & 0xfffffff3;
536 break;
537 case FBR5:
538 s->dma_ch[5].branch = value & 0xfffffff3;
539 break;
540 case FBR6:
541 s->dma_ch[6].branch = value & 0xfffffff3;
542 break;
543
544 case BSCNTR:
545 s->bscntr = value & 0xf;
546 break;
547
548 case PRSR:
549 break;
550
551 case LCSR0:
552 s->status[0] &= ~(value & 0xfff);
553 if (value & LCSR0_BER)
554 s->status[0] &= ~LCSR0_BERCH(7);
555 break;
556
557 case LCSR1:
558 s->status[1] &= ~(value & 0x3e3f3f);
559 break;
560
561 default:
562 fail:
563 hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
564 }
565 }
566
567 static const MemoryRegionOps pxa2xx_lcdc_ops = {
568 .read = pxa2xx_lcdc_read,
569 .write = pxa2xx_lcdc_write,
570 .endianness = DEVICE_NATIVE_ENDIAN,
571 };
572
573 /* Load new palette for a given DMA channel, convert to internal format */
574 static void pxa2xx_palette_parse(PXA2xxLCDState *s, int ch, int bpp)
575 {
576 DisplaySurface *surface = qemu_console_surface(s->con);
577 int i, n, format, r, g, b, alpha;
578 uint32_t *dest;
579 uint8_t *src;
580 s->pal_for = LCCR4_PALFOR(s->control[4]);
581 format = s->pal_for;
582
583 switch (bpp) {
584 case pxa_lcdc_2bpp:
585 n = 4;
586 break;
587 case pxa_lcdc_4bpp:
588 n = 16;
589 break;
590 case pxa_lcdc_8bpp:
591 n = 256;
592 break;
593 default:
594 format = 0;
595 return;
596 }
597
598 src = (uint8_t *) s->dma_ch[ch].pbuffer;
599 dest = (uint32_t *) s->dma_ch[ch].palette;
600 alpha = r = g = b = 0;
601
602 for (i = 0; i < n; i ++) {
603 switch (format) {
604 case 0: /* 16 bpp, no transparency */
605 alpha = 0;
606 if (s->control[0] & LCCR0_CMS) {
607 r = g = b = *(uint16_t *) src & 0xff;
608 }
609 else {
610 r = (*(uint16_t *) src & 0xf800) >> 8;
611 g = (*(uint16_t *) src & 0x07e0) >> 3;
612 b = (*(uint16_t *) src & 0x001f) << 3;
613 }
614 src += 2;
615 break;
616 case 1: /* 16 bpp plus transparency */
617 alpha = *(uint32_t *) src & (1 << 24);
618 if (s->control[0] & LCCR0_CMS)
619 r = g = b = *(uint32_t *) src & 0xff;
620 else {
621 r = (*(uint32_t *) src & 0xf80000) >> 16;
622 g = (*(uint32_t *) src & 0x00fc00) >> 8;
623 b = (*(uint32_t *) src & 0x0000f8);
624 }
625 src += 4;
626 break;
627 case 2: /* 18 bpp plus transparency */
628 alpha = *(uint32_t *) src & (1 << 24);
629 if (s->control[0] & LCCR0_CMS)
630 r = g = b = *(uint32_t *) src & 0xff;
631 else {
632 r = (*(uint32_t *) src & 0xfc0000) >> 16;
633 g = (*(uint32_t *) src & 0x00fc00) >> 8;
634 b = (*(uint32_t *) src & 0x0000fc);
635 }
636 src += 4;
637 break;
638 case 3: /* 24 bpp plus transparency */
639 alpha = *(uint32_t *) src & (1 << 24);
640 if (s->control[0] & LCCR0_CMS)
641 r = g = b = *(uint32_t *) src & 0xff;
642 else {
643 r = (*(uint32_t *) src & 0xff0000) >> 16;
644 g = (*(uint32_t *) src & 0x00ff00) >> 8;
645 b = (*(uint32_t *) src & 0x0000ff);
646 }
647 src += 4;
648 break;
649 }
650 switch (surface_bits_per_pixel(surface)) {
651 case 8:
652 *dest = rgb_to_pixel8(r, g, b) | alpha;
653 break;
654 case 15:
655 *dest = rgb_to_pixel15(r, g, b) | alpha;
656 break;
657 case 16:
658 *dest = rgb_to_pixel16(r, g, b) | alpha;
659 break;
660 case 24:
661 *dest = rgb_to_pixel24(r, g, b) | alpha;
662 break;
663 case 32:
664 *dest = rgb_to_pixel32(r, g, b) | alpha;
665 break;
666 }
667 dest ++;
668 }
669 }
670
671 static void pxa2xx_lcdc_dma0_redraw_rot0(PXA2xxLCDState *s,
672 hwaddr addr, int *miny, int *maxy)
673 {
674 DisplaySurface *surface = qemu_console_surface(s->con);
675 int src_width, dest_width;
676 drawfn fn = NULL;
677 if (s->dest_width)
678 fn = s->line_fn[s->transp][s->bpp];
679 if (!fn)
680 return;
681
682 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
683 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
684 src_width *= 3;
685 else if (s->bpp > pxa_lcdc_16bpp)
686 src_width *= 4;
687 else if (s->bpp > pxa_lcdc_8bpp)
688 src_width *= 2;
689
690 dest_width = s->xres * s->dest_width;
691 *miny = 0;
692 if (s->invalidated) {
693 framebuffer_update_memory_section(&s->fbsection, s->sysmem,
694 addr, s->yres, src_width);
695 }
696 framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
697 src_width, dest_width, s->dest_width,
698 s->invalidated,
699 fn, s->dma_ch[0].palette, miny, maxy);
700 }
701
702 static void pxa2xx_lcdc_dma0_redraw_rot90(PXA2xxLCDState *s,
703 hwaddr addr, int *miny, int *maxy)
704 {
705 DisplaySurface *surface = qemu_console_surface(s->con);
706 int src_width, dest_width;
707 drawfn fn = NULL;
708 if (s->dest_width)
709 fn = s->line_fn[s->transp][s->bpp];
710 if (!fn)
711 return;
712
713 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
714 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
715 src_width *= 3;
716 else if (s->bpp > pxa_lcdc_16bpp)
717 src_width *= 4;
718 else if (s->bpp > pxa_lcdc_8bpp)
719 src_width *= 2;
720
721 dest_width = s->yres * s->dest_width;
722 *miny = 0;
723 if (s->invalidated) {
724 framebuffer_update_memory_section(&s->fbsection, s->sysmem,
725 addr, s->yres, src_width);
726 }
727 framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
728 src_width, s->dest_width, -dest_width,
729 s->invalidated,
730 fn, s->dma_ch[0].palette,
731 miny, maxy);
732 }
733
734 static void pxa2xx_lcdc_dma0_redraw_rot180(PXA2xxLCDState *s,
735 hwaddr addr, int *miny, int *maxy)
736 {
737 DisplaySurface *surface = qemu_console_surface(s->con);
738 int src_width, dest_width;
739 drawfn fn = NULL;
740 if (s->dest_width) {
741 fn = s->line_fn[s->transp][s->bpp];
742 }
743 if (!fn) {
744 return;
745 }
746
747 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
748 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) {
749 src_width *= 3;
750 } else if (s->bpp > pxa_lcdc_16bpp) {
751 src_width *= 4;
752 } else if (s->bpp > pxa_lcdc_8bpp) {
753 src_width *= 2;
754 }
755
756 dest_width = s->xres * s->dest_width;
757 *miny = 0;
758 if (s->invalidated) {
759 framebuffer_update_memory_section(&s->fbsection, s->sysmem,
760 addr, s->yres, src_width);
761 }
762 framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
763 src_width, -dest_width, -s->dest_width,
764 s->invalidated,
765 fn, s->dma_ch[0].palette, miny, maxy);
766 }
767
768 static void pxa2xx_lcdc_dma0_redraw_rot270(PXA2xxLCDState *s,
769 hwaddr addr, int *miny, int *maxy)
770 {
771 DisplaySurface *surface = qemu_console_surface(s->con);
772 int src_width, dest_width;
773 drawfn fn = NULL;
774 if (s->dest_width) {
775 fn = s->line_fn[s->transp][s->bpp];
776 }
777 if (!fn) {
778 return;
779 }
780
781 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
782 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) {
783 src_width *= 3;
784 } else if (s->bpp > pxa_lcdc_16bpp) {
785 src_width *= 4;
786 } else if (s->bpp > pxa_lcdc_8bpp) {
787 src_width *= 2;
788 }
789
790 dest_width = s->yres * s->dest_width;
791 *miny = 0;
792 if (s->invalidated) {
793 framebuffer_update_memory_section(&s->fbsection, s->sysmem,
794 addr, s->yres, src_width);
795 }
796 framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
797 src_width, -s->dest_width, dest_width,
798 s->invalidated,
799 fn, s->dma_ch[0].palette,
800 miny, maxy);
801 }
802
803 static void pxa2xx_lcdc_resize(PXA2xxLCDState *s)
804 {
805 int width, height;
806 if (!(s->control[0] & LCCR0_ENB))
807 return;
808
809 width = LCCR1_PPL(s->control[1]) + 1;
810 height = LCCR2_LPP(s->control[2]) + 1;
811
812 if (width != s->xres || height != s->yres) {
813 if (s->orientation == 90 || s->orientation == 270) {
814 qemu_console_resize(s->con, height, width);
815 } else {
816 qemu_console_resize(s->con, width, height);
817 }
818 s->invalidated = 1;
819 s->xres = width;
820 s->yres = height;
821 }
822 }
823
824 static void pxa2xx_update_display(void *opaque)
825 {
826 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
827 hwaddr fbptr;
828 int miny, maxy;
829 int ch;
830 if (!(s->control[0] & LCCR0_ENB))
831 return;
832
833 pxa2xx_descriptor_load(s);
834
835 pxa2xx_lcdc_resize(s);
836 miny = s->yres;
837 maxy = 0;
838 s->transp = s->dma_ch[2].up || s->dma_ch[3].up;
839 /* Note: With overlay planes the order depends on LCCR0 bit 25. */
840 for (ch = 0; ch < PXA_LCDDMA_CHANS; ch ++)
841 if (s->dma_ch[ch].up) {
842 if (!s->dma_ch[ch].source) {
843 pxa2xx_dma_ber_set(s, ch);
844 continue;
845 }
846 fbptr = s->dma_ch[ch].source;
847 if (!((fbptr >= PXA2XX_SDRAM_BASE &&
848 fbptr <= PXA2XX_SDRAM_BASE + ram_size) ||
849 (fbptr >= PXA2XX_INTERNAL_BASE &&
850 fbptr <= PXA2XX_INTERNAL_BASE + PXA2XX_INTERNAL_SIZE))) {
851 pxa2xx_dma_ber_set(s, ch);
852 continue;
853 }
854
855 if (s->dma_ch[ch].command & LDCMD_PAL) {
856 cpu_physical_memory_read(fbptr, s->dma_ch[ch].pbuffer,
857 MAX(LDCMD_LENGTH(s->dma_ch[ch].command),
858 sizeof(s->dma_ch[ch].pbuffer)));
859 pxa2xx_palette_parse(s, ch, s->bpp);
860 } else {
861 /* Do we need to reparse palette */
862 if (LCCR4_PALFOR(s->control[4]) != s->pal_for)
863 pxa2xx_palette_parse(s, ch, s->bpp);
864
865 /* ACK frame start */
866 pxa2xx_dma_sof_set(s, ch);
867
868 s->dma_ch[ch].redraw(s, fbptr, &miny, &maxy);
869 s->invalidated = 0;
870
871 /* ACK frame completed */
872 pxa2xx_dma_eof_set(s, ch);
873 }
874 }
875
876 if (s->control[0] & LCCR0_DIS) {
877 /* ACK last frame completed */
878 s->control[0] &= ~LCCR0_ENB;
879 s->status[0] |= LCSR0_LDD;
880 }
881
882 if (miny >= 0) {
883 switch (s->orientation) {
884 case 0:
885 dpy_gfx_update(s->con, 0, miny, s->xres, maxy - miny + 1);
886 break;
887 case 90:
888 dpy_gfx_update(s->con, miny, 0, maxy - miny + 1, s->xres);
889 break;
890 case 180:
891 maxy = s->yres - maxy - 1;
892 miny = s->yres - miny - 1;
893 dpy_gfx_update(s->con, 0, maxy, s->xres, miny - maxy + 1);
894 break;
895 case 270:
896 maxy = s->yres - maxy - 1;
897 miny = s->yres - miny - 1;
898 dpy_gfx_update(s->con, maxy, 0, miny - maxy + 1, s->xres);
899 break;
900 }
901 }
902 pxa2xx_lcdc_int_update(s);
903
904 qemu_irq_raise(s->vsync_cb);
905 }
906
907 static void pxa2xx_invalidate_display(void *opaque)
908 {
909 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
910 s->invalidated = 1;
911 }
912
913 static void pxa2xx_lcdc_orientation(void *opaque, int angle)
914 {
915 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
916
917 switch (angle) {
918 case 0:
919 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot0;
920 break;
921 case 90:
922 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot90;
923 break;
924 case 180:
925 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot180;
926 break;
927 case 270:
928 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot270;
929 break;
930 }
931
932 s->orientation = angle;
933 s->xres = s->yres = -1;
934 pxa2xx_lcdc_resize(s);
935 }
936
937 static const VMStateDescription vmstate_dma_channel = {
938 .name = "dma_channel",
939 .version_id = 0,
940 .minimum_version_id = 0,
941 .fields = (VMStateField[]) {
942 VMSTATE_UINT32(branch, struct DMAChannel),
943 VMSTATE_UINT8(up, struct DMAChannel),
944 VMSTATE_BUFFER(pbuffer, struct DMAChannel),
945 VMSTATE_UINT32(descriptor, struct DMAChannel),
946 VMSTATE_UINT32(source, struct DMAChannel),
947 VMSTATE_UINT32(id, struct DMAChannel),
948 VMSTATE_UINT32(command, struct DMAChannel),
949 VMSTATE_END_OF_LIST()
950 }
951 };
952
953 static int pxa2xx_lcdc_post_load(void *opaque, int version_id)
954 {
955 PXA2xxLCDState *s = opaque;
956
957 s->bpp = LCCR3_BPP(s->control[3]);
958 s->xres = s->yres = s->pal_for = -1;
959
960 return 0;
961 }
962
963 static const VMStateDescription vmstate_pxa2xx_lcdc = {
964 .name = "pxa2xx_lcdc",
965 .version_id = 0,
966 .minimum_version_id = 0,
967 .post_load = pxa2xx_lcdc_post_load,
968 .fields = (VMStateField[]) {
969 VMSTATE_INT32(irqlevel, PXA2xxLCDState),
970 VMSTATE_INT32(transp, PXA2xxLCDState),
971 VMSTATE_UINT32_ARRAY(control, PXA2xxLCDState, 6),
972 VMSTATE_UINT32_ARRAY(status, PXA2xxLCDState, 2),
973 VMSTATE_UINT32_ARRAY(ovl1c, PXA2xxLCDState, 2),
974 VMSTATE_UINT32_ARRAY(ovl2c, PXA2xxLCDState, 2),
975 VMSTATE_UINT32(ccr, PXA2xxLCDState),
976 VMSTATE_UINT32(cmdcr, PXA2xxLCDState),
977 VMSTATE_UINT32(trgbr, PXA2xxLCDState),
978 VMSTATE_UINT32(tcr, PXA2xxLCDState),
979 VMSTATE_UINT32(liidr, PXA2xxLCDState),
980 VMSTATE_UINT8(bscntr, PXA2xxLCDState),
981 VMSTATE_STRUCT_ARRAY(dma_ch, PXA2xxLCDState, 7, 0,
982 vmstate_dma_channel, struct DMAChannel),
983 VMSTATE_END_OF_LIST()
984 }
985 };
986
987 #define BITS 8
988 #include "pxa2xx_template.h"
989 #define BITS 15
990 #include "pxa2xx_template.h"
991 #define BITS 16
992 #include "pxa2xx_template.h"
993 #define BITS 24
994 #include "pxa2xx_template.h"
995 #define BITS 32
996 #include "pxa2xx_template.h"
997
998 static const GraphicHwOps pxa2xx_ops = {
999 .invalidate = pxa2xx_invalidate_display,
1000 .gfx_update = pxa2xx_update_display,
1001 };
1002
1003 PXA2xxLCDState *pxa2xx_lcdc_init(MemoryRegion *sysmem,
1004 hwaddr base, qemu_irq irq)
1005 {
1006 PXA2xxLCDState *s;
1007 DisplaySurface *surface;
1008
1009 s = (PXA2xxLCDState *) g_malloc0(sizeof(PXA2xxLCDState));
1010 s->invalidated = 1;
1011 s->irq = irq;
1012 s->sysmem = sysmem;
1013
1014 pxa2xx_lcdc_orientation(s, graphic_rotate);
1015
1016 memory_region_init_io(&s->iomem, NULL, &pxa2xx_lcdc_ops, s,
1017 "pxa2xx-lcd-controller", 0x00100000);
1018 memory_region_add_subregion(sysmem, base, &s->iomem);
1019
1020 s->con = graphic_console_init(NULL, 0, &pxa2xx_ops, s);
1021 surface = qemu_console_surface(s->con);
1022
1023 switch (surface_bits_per_pixel(surface)) {
1024 case 0:
1025 s->dest_width = 0;
1026 break;
1027 case 8:
1028 s->line_fn[0] = pxa2xx_draw_fn_8;
1029 s->line_fn[1] = pxa2xx_draw_fn_8t;
1030 s->dest_width = 1;
1031 break;
1032 case 15:
1033 s->line_fn[0] = pxa2xx_draw_fn_15;
1034 s->line_fn[1] = pxa2xx_draw_fn_15t;
1035 s->dest_width = 2;
1036 break;
1037 case 16:
1038 s->line_fn[0] = pxa2xx_draw_fn_16;
1039 s->line_fn[1] = pxa2xx_draw_fn_16t;
1040 s->dest_width = 2;
1041 break;
1042 case 24:
1043 s->line_fn[0] = pxa2xx_draw_fn_24;
1044 s->line_fn[1] = pxa2xx_draw_fn_24t;
1045 s->dest_width = 3;
1046 break;
1047 case 32:
1048 s->line_fn[0] = pxa2xx_draw_fn_32;
1049 s->line_fn[1] = pxa2xx_draw_fn_32t;
1050 s->dest_width = 4;
1051 break;
1052 default:
1053 fprintf(stderr, "%s: Bad color depth\n", __FUNCTION__);
1054 exit(1);
1055 }
1056
1057 vmstate_register(NULL, 0, &vmstate_pxa2xx_lcdc, s);
1058
1059 return s;
1060 }
1061
1062 void pxa2xx_lcd_vsync_notifier(PXA2xxLCDState *s, qemu_irq handler)
1063 {
1064 s->vsync_cb = handler;
1065 }
AR7 emulation for QEMU