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target-ppc: Model e500v{1,2} CPUs more accurately
[qemu/mini2440/sniper_sniper_test.git] / hw / pxa2xx_lcd.c
blob5c2eff10e7b3a4fc8c01ec50ac94f47b512debbd
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
10 #include "hw.h"
11 #include "console.h"
12 #include "pxa.h"
13 #include "pixel_ops.h"
14 /* FIXME: For graphic_rotate. Should probably be done in common code. */
15 #include "sysemu.h"
16
17 typedef void (*drawfn)(uint32_t *, uint8_t *, const uint8_t *, int, int);
18
19 struct pxa2xx_lcdc_s {
20 qemu_irq irq;
21 int irqlevel;
22
23 int invalidated;
24 DisplayState *ds;
25 drawfn *line_fn[2];
26 int dest_width;
27 int xres, yres;
28 int pal_for;
29 int transp;
30 enum {
31 pxa_lcdc_2bpp = 1,
32 pxa_lcdc_4bpp = 2,
33 pxa_lcdc_8bpp = 3,
34 pxa_lcdc_16bpp = 4,
35 pxa_lcdc_18bpp = 5,
36 pxa_lcdc_18pbpp = 6,
37 pxa_lcdc_19bpp = 7,
38 pxa_lcdc_19pbpp = 8,
39 pxa_lcdc_24bpp = 9,
40 pxa_lcdc_25bpp = 10,
41 } bpp;
42
43 uint32_t control[6];
44 uint32_t status[2];
45 uint32_t ovl1c[2];
46 uint32_t ovl2c[2];
47 uint32_t ccr;
48 uint32_t cmdcr;
49 uint32_t trgbr;
50 uint32_t tcr;
51 uint32_t liidr;
52 uint8_t bscntr;
53
54 struct {
55 target_phys_addr_t branch;
56 int up;
57 uint8_t palette[1024];
58 uint8_t pbuffer[1024];
59 void (*redraw)(struct pxa2xx_lcdc_s *s, uint8_t *fb,
60 int *miny, int *maxy);
61
62 target_phys_addr_t descriptor;
63 target_phys_addr_t source;
64 uint32_t id;
65 uint32_t command;
66 } dma_ch[7];
67
68 qemu_irq vsync_cb;
69 int orientation;
70 };
71
72 struct __attribute__ ((__packed__)) pxa_frame_descriptor_s {
73 uint32_t fdaddr;
74 uint32_t fsaddr;
75 uint32_t fidr;
76 uint32_t ldcmd;
77 };
78
79 #define LCCR0 0x000 /* LCD Controller Control register 0 */
80 #define LCCR1 0x004 /* LCD Controller Control register 1 */
81 #define LCCR2 0x008 /* LCD Controller Control register 2 */
82 #define LCCR3 0x00c /* LCD Controller Control register 3 */
83 #define LCCR4 0x010 /* LCD Controller Control register 4 */
84 #define LCCR5 0x014 /* LCD Controller Control register 5 */
85
86 #define FBR0 0x020 /* DMA Channel 0 Frame Branch register */
87 #define FBR1 0x024 /* DMA Channel 1 Frame Branch register */
88 #define FBR2 0x028 /* DMA Channel 2 Frame Branch register */
89 #define FBR3 0x02c /* DMA Channel 3 Frame Branch register */
90 #define FBR4 0x030 /* DMA Channel 4 Frame Branch register */
91 #define FBR5 0x110 /* DMA Channel 5 Frame Branch register */
92 #define FBR6 0x114 /* DMA Channel 6 Frame Branch register */
93
94 #define LCSR1 0x034 /* LCD Controller Status register 1 */
95 #define LCSR0 0x038 /* LCD Controller Status register 0 */
96 #define LIIDR 0x03c /* LCD Controller Interrupt ID register */
97
98 #define TRGBR 0x040 /* TMED RGB Seed register */
99 #define TCR 0x044 /* TMED Control register */
100
101 #define OVL1C1 0x050 /* Overlay 1 Control register 1 */
102 #define OVL1C2 0x060 /* Overlay 1 Control register 2 */
103 #define OVL2C1 0x070 /* Overlay 2 Control register 1 */
104 #define OVL2C2 0x080 /* Overlay 2 Control register 2 */
105 #define CCR 0x090 /* Cursor Control register */
106
107 #define CMDCR 0x100 /* Command Control register */
108 #define PRSR 0x104 /* Panel Read Status register */
109
110 #define PXA_LCDDMA_CHANS 7
111 #define DMA_FDADR 0x00 /* Frame Descriptor Address register */
112 #define DMA_FSADR 0x04 /* Frame Source Address register */
113 #define DMA_FIDR 0x08 /* Frame ID register */
114 #define DMA_LDCMD 0x0c /* Command register */
115
116 /* LCD Buffer Strength Control register */
117 #define BSCNTR 0x04000054
118
119 /* Bitfield masks */
120 #define LCCR0_ENB (1 << 0)
121 #define LCCR0_CMS (1 << 1)
122 #define LCCR0_SDS (1 << 2)
123 #define LCCR0_LDM (1 << 3)
124 #define LCCR0_SOFM0 (1 << 4)
125 #define LCCR0_IUM (1 << 5)
126 #define LCCR0_EOFM0 (1 << 6)
127 #define LCCR0_PAS (1 << 7)
128 #define LCCR0_DPD (1 << 9)
129 #define LCCR0_DIS (1 << 10)
130 #define LCCR0_QDM (1 << 11)
131 #define LCCR0_PDD (0xff << 12)
132 #define LCCR0_BSM0 (1 << 20)
133 #define LCCR0_OUM (1 << 21)
134 #define LCCR0_LCDT (1 << 22)
135 #define LCCR0_RDSTM (1 << 23)
136 #define LCCR0_CMDIM (1 << 24)
137 #define LCCR0_OUC (1 << 25)
138 #define LCCR0_LDDALT (1 << 26)
139 #define LCCR1_PPL(x) ((x) & 0x3ff)
140 #define LCCR2_LPP(x) ((x) & 0x3ff)
141 #define LCCR3_API (15 << 16)
142 #define LCCR3_BPP(x) ((((x) >> 24) & 7) | (((x) >> 26) & 8))
143 #define LCCR3_PDFOR(x) (((x) >> 30) & 3)
144 #define LCCR4_K1(x) (((x) >> 0) & 7)
145 #define LCCR4_K2(x) (((x) >> 3) & 7)
146 #define LCCR4_K3(x) (((x) >> 6) & 7)
147 #define LCCR4_PALFOR(x) (((x) >> 15) & 3)
148 #define LCCR5_SOFM(ch) (1 << (ch - 1))
149 #define LCCR5_EOFM(ch) (1 << (ch + 7))
150 #define LCCR5_BSM(ch) (1 << (ch + 15))
151 #define LCCR5_IUM(ch) (1 << (ch + 23))
152 #define OVLC1_EN (1 << 31)
153 #define CCR_CEN (1 << 31)
154 #define FBR_BRA (1 << 0)
155 #define FBR_BINT (1 << 1)
156 #define FBR_SRCADDR (0xfffffff << 4)
157 #define LCSR0_LDD (1 << 0)
158 #define LCSR0_SOF0 (1 << 1)
159 #define LCSR0_BER (1 << 2)
160 #define LCSR0_ABC (1 << 3)
161 #define LCSR0_IU0 (1 << 4)
162 #define LCSR0_IU1 (1 << 5)
163 #define LCSR0_OU (1 << 6)
164 #define LCSR0_QD (1 << 7)
165 #define LCSR0_EOF0 (1 << 8)
166 #define LCSR0_BS0 (1 << 9)
167 #define LCSR0_SINT (1 << 10)
168 #define LCSR0_RDST (1 << 11)
169 #define LCSR0_CMDINT (1 << 12)
170 #define LCSR0_BERCH(x) (((x) & 7) << 28)
171 #define LCSR1_SOF(ch) (1 << (ch - 1))
172 #define LCSR1_EOF(ch) (1 << (ch + 7))
173 #define LCSR1_BS(ch) (1 << (ch + 15))
174 #define LCSR1_IU(ch) (1 << (ch + 23))
175 #define LDCMD_LENGTH(x) ((x) & 0x001ffffc)
176 #define LDCMD_EOFINT (1 << 21)
177 #define LDCMD_SOFINT (1 << 22)
178 #define LDCMD_PAL (1 << 26)
179
180 /* Route internal interrupt lines to the global IC */
181 static void pxa2xx_lcdc_int_update(struct pxa2xx_lcdc_s *s)
182 {
183 int level = 0;
184 level |= (s->status[0] & LCSR0_LDD) && !(s->control[0] & LCCR0_LDM);
185 level |= (s->status[0] & LCSR0_SOF0) && !(s->control[0] & LCCR0_SOFM0);
186 level |= (s->status[0] & LCSR0_IU0) && !(s->control[0] & LCCR0_IUM);
187 level |= (s->status[0] & LCSR0_IU1) && !(s->control[5] & LCCR5_IUM(1));
188 level |= (s->status[0] & LCSR0_OU) && !(s->control[0] & LCCR0_OUM);
189 level |= (s->status[0] & LCSR0_QD) && !(s->control[0] & LCCR0_QDM);
190 level |= (s->status[0] & LCSR0_EOF0) && !(s->control[0] & LCCR0_EOFM0);
191 level |= (s->status[0] & LCSR0_BS0) && !(s->control[0] & LCCR0_BSM0);
192 level |= (s->status[0] & LCSR0_RDST) && !(s->control[0] & LCCR0_RDSTM);
193 level |= (s->status[0] & LCSR0_CMDINT) && !(s->control[0] & LCCR0_CMDIM);
194 level |= (s->status[1] & ~s->control[5]);
195
196 qemu_set_irq(s->irq, !!level);
197 s->irqlevel = level;
198 }
199
200 /* Set Branch Status interrupt high and poke associated registers */
201 static inline void pxa2xx_dma_bs_set(struct pxa2xx_lcdc_s *s, int ch)
202 {
203 int unmasked;
204 if (ch == 0) {
205 s->status[0] |= LCSR0_BS0;
206 unmasked = !(s->control[0] & LCCR0_BSM0);
207 } else {
208 s->status[1] |= LCSR1_BS(ch);
209 unmasked = !(s->control[5] & LCCR5_BSM(ch));
210 }
211
212 if (unmasked) {
213 if (s->irqlevel)
214 s->status[0] |= LCSR0_SINT;
215 else
216 s->liidr = s->dma_ch[ch].id;
217 }
218 }
219
220 /* Set Start Of Frame Status interrupt high and poke associated registers */
221 static inline void pxa2xx_dma_sof_set(struct pxa2xx_lcdc_s *s, int ch)
222 {
223 int unmasked;
224 if (!(s->dma_ch[ch].command & LDCMD_SOFINT))
225 return;
226
227 if (ch == 0) {
228 s->status[0] |= LCSR0_SOF0;
229 unmasked = !(s->control[0] & LCCR0_SOFM0);
230 } else {
231 s->status[1] |= LCSR1_SOF(ch);
232 unmasked = !(s->control[5] & LCCR5_SOFM(ch));
233 }
234
235 if (unmasked) {
236 if (s->irqlevel)
237 s->status[0] |= LCSR0_SINT;
238 else
239 s->liidr = s->dma_ch[ch].id;
240 }
241 }
242
243 /* Set End Of Frame Status interrupt high and poke associated registers */
244 static inline void pxa2xx_dma_eof_set(struct pxa2xx_lcdc_s *s, int ch)
245 {
246 int unmasked;
247 if (!(s->dma_ch[ch].command & LDCMD_EOFINT))
248 return;
249
250 if (ch == 0) {
251 s->status[0] |= LCSR0_EOF0;
252 unmasked = !(s->control[0] & LCCR0_EOFM0);
253 } else {
254 s->status[1] |= LCSR1_EOF(ch);
255 unmasked = !(s->control[5] & LCCR5_EOFM(ch));
256 }
257
258 if (unmasked) {
259 if (s->irqlevel)
260 s->status[0] |= LCSR0_SINT;
261 else
262 s->liidr = s->dma_ch[ch].id;
263 }
264 }
265
266 /* Set Bus Error Status interrupt high and poke associated registers */
267 static inline void pxa2xx_dma_ber_set(struct pxa2xx_lcdc_s *s, int ch)
268 {
269 s->status[0] |= LCSR0_BERCH(ch) | LCSR0_BER;
270 if (s->irqlevel)
271 s->status[0] |= LCSR0_SINT;
272 else
273 s->liidr = s->dma_ch[ch].id;
274 }
275
276 /* Set Read Status interrupt high and poke associated registers */
277 static inline void pxa2xx_dma_rdst_set(struct pxa2xx_lcdc_s *s)
278 {
279 s->status[0] |= LCSR0_RDST;
280 if (s->irqlevel && !(s->control[0] & LCCR0_RDSTM))
281 s->status[0] |= LCSR0_SINT;
282 }
283
284 /* Load new Frame Descriptors from DMA */
285 static void pxa2xx_descriptor_load(struct pxa2xx_lcdc_s *s)
286 {
287 struct pxa_frame_descriptor_s *desc[PXA_LCDDMA_CHANS];
288 target_phys_addr_t descptr;
289 int i;
290
291 for (i = 0; i < PXA_LCDDMA_CHANS; i ++) {
292 desc[i] = 0;
293 s->dma_ch[i].source = 0;
294
295 if (!s->dma_ch[i].up)
296 continue;
297
298 if (s->dma_ch[i].branch & FBR_BRA) {
299 descptr = s->dma_ch[i].branch & FBR_SRCADDR;
300 if (s->dma_ch[i].branch & FBR_BINT)
301 pxa2xx_dma_bs_set(s, i);
302 s->dma_ch[i].branch &= ~FBR_BRA;
303 } else
304 descptr = s->dma_ch[i].descriptor;
305
306 if (!(descptr >= PXA2XX_SDRAM_BASE && descptr +
307 sizeof(*desc[i]) <= PXA2XX_SDRAM_BASE + phys_ram_size))
308 continue;
309
310 descptr -= PXA2XX_SDRAM_BASE;
311 desc[i] = (struct pxa_frame_descriptor_s *) (phys_ram_base + descptr);
312 s->dma_ch[i].descriptor = desc[i]->fdaddr;
313 s->dma_ch[i].source = desc[i]->fsaddr;
314 s->dma_ch[i].id = desc[i]->fidr;
315 s->dma_ch[i].command = desc[i]->ldcmd;
316 }
317 }
318
319 static uint32_t pxa2xx_lcdc_read(void *opaque, target_phys_addr_t offset)
320 {
321 struct pxa2xx_lcdc_s *s = (struct pxa2xx_lcdc_s *) opaque;
322 int ch;
323
324 switch (offset) {
325 case LCCR0:
326 return s->control[0];
327 case LCCR1:
328 return s->control[1];
329 case LCCR2:
330 return s->control[2];
331 case LCCR3:
332 return s->control[3];
333 case LCCR4:
334 return s->control[4];
335 case LCCR5:
336 return s->control[5];
337
338 case OVL1C1:
339 return s->ovl1c[0];
340 case OVL1C2:
341 return s->ovl1c[1];
342 case OVL2C1:
343 return s->ovl2c[0];
344 case OVL2C2:
345 return s->ovl2c[1];
346
347 case CCR:
348 return s->ccr;
349
350 case CMDCR:
351 return s->cmdcr;
352
353 case TRGBR:
354 return s->trgbr;
355 case TCR:
356 return s->tcr;
357
358 case 0x200 ... 0x1000: /* DMA per-channel registers */
359 ch = (offset - 0x200) >> 4;
360 if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS))
361 goto fail;
362
363 switch (offset & 0xf) {
364 case DMA_FDADR:
365 return s->dma_ch[ch].descriptor;
366 case DMA_FSADR:
367 return s->dma_ch[ch].source;
368 case DMA_FIDR:
369 return s->dma_ch[ch].id;
370 case DMA_LDCMD:
371 return s->dma_ch[ch].command;
372 default:
373 goto fail;
374 }
375
376 case FBR0:
377 return s->dma_ch[0].branch;
378 case FBR1:
379 return s->dma_ch[1].branch;
380 case FBR2:
381 return s->dma_ch[2].branch;
382 case FBR3:
383 return s->dma_ch[3].branch;
384 case FBR4:
385 return s->dma_ch[4].branch;
386 case FBR5:
387 return s->dma_ch[5].branch;
388 case FBR6:
389 return s->dma_ch[6].branch;
390
391 case BSCNTR:
392 return s->bscntr;
393
394 case PRSR:
395 return 0;
396
397 case LCSR0:
398 return s->status[0];
399 case LCSR1:
400 return s->status[1];
401 case LIIDR:
402 return s->liidr;
403
404 default:
405 fail:
406 cpu_abort(cpu_single_env,
407 "%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
408 }
409
410 return 0;
411 }
412
413 static void pxa2xx_lcdc_write(void *opaque,
414 target_phys_addr_t offset, uint32_t value)
415 {
416 struct pxa2xx_lcdc_s *s = (struct pxa2xx_lcdc_s *) opaque;
417 int ch;
418
419 switch (offset) {
420 case LCCR0:
421 /* ACK Quick Disable done */
422 if ((s->control[0] & LCCR0_ENB) && !(value & LCCR0_ENB))
423 s->status[0] |= LCSR0_QD;
424
425 if (!(s->control[0] & LCCR0_LCDT) && (value & LCCR0_LCDT))
426 printf("%s: internal frame buffer unsupported\n", __FUNCTION__);
427
428 if ((s->control[3] & LCCR3_API) &&
429 (value & LCCR0_ENB) && !(value & LCCR0_LCDT))
430 s->status[0] |= LCSR0_ABC;
431
432 s->control[0] = value & 0x07ffffff;
433 pxa2xx_lcdc_int_update(s);
434
435 s->dma_ch[0].up = !!(value & LCCR0_ENB);
436 s->dma_ch[1].up = (s->ovl1c[0] & OVLC1_EN) || (value & LCCR0_SDS);
437 break;
438
439 case LCCR1:
440 s->control[1] = value;
441 break;
442
443 case LCCR2:
444 s->control[2] = value;
445 break;
446
447 case LCCR3:
448 s->control[3] = value & 0xefffffff;
449 s->bpp = LCCR3_BPP(value);
450 break;
451
452 case LCCR4:
453 s->control[4] = value & 0x83ff81ff;
454 break;
455
456 case LCCR5:
457 s->control[5] = value & 0x3f3f3f3f;
458 break;
459
460 case OVL1C1:
461 if (!(s->ovl1c[0] & OVLC1_EN) && (value & OVLC1_EN))
462 printf("%s: Overlay 1 not supported\n", __FUNCTION__);
463
464 s->ovl1c[0] = value & 0x80ffffff;
465 s->dma_ch[1].up = (value & OVLC1_EN) || (s->control[0] & LCCR0_SDS);
466 break;
467
468 case OVL1C2:
469 s->ovl1c[1] = value & 0x000fffff;
470 break;
471
472 case OVL2C1:
473 if (!(s->ovl2c[0] & OVLC1_EN) && (value & OVLC1_EN))
474 printf("%s: Overlay 2 not supported\n", __FUNCTION__);
475
476 s->ovl2c[0] = value & 0x80ffffff;
477 s->dma_ch[2].up = !!(value & OVLC1_EN);
478 s->dma_ch[3].up = !!(value & OVLC1_EN);
479 s->dma_ch[4].up = !!(value & OVLC1_EN);
480 break;
481
482 case OVL2C2:
483 s->ovl2c[1] = value & 0x007fffff;
484 break;
485
486 case CCR:
487 if (!(s->ccr & CCR_CEN) && (value & CCR_CEN))
488 printf("%s: Hardware cursor unimplemented\n", __FUNCTION__);
489
490 s->ccr = value & 0x81ffffe7;
491 s->dma_ch[5].up = !!(value & CCR_CEN);
492 break;
493
494 case CMDCR:
495 s->cmdcr = value & 0xff;
496 break;
497
498 case TRGBR:
499 s->trgbr = value & 0x00ffffff;
500 break;
501
502 case TCR:
503 s->tcr = value & 0x7fff;
504 break;
505
506 case 0x200 ... 0x1000: /* DMA per-channel registers */
507 ch = (offset - 0x200) >> 4;
508 if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS))
509 goto fail;
510
511 switch (offset & 0xf) {
512 case DMA_FDADR:
513 s->dma_ch[ch].descriptor = value & 0xfffffff0;
514 break;
515
516 default:
517 goto fail;
518 }
519 break;
520
521 case FBR0:
522 s->dma_ch[0].branch = value & 0xfffffff3;
523 break;
524 case FBR1:
525 s->dma_ch[1].branch = value & 0xfffffff3;
526 break;
527 case FBR2:
528 s->dma_ch[2].branch = value & 0xfffffff3;
529 break;
530 case FBR3:
531 s->dma_ch[3].branch = value & 0xfffffff3;
532 break;
533 case FBR4:
534 s->dma_ch[4].branch = value & 0xfffffff3;
535 break;
536 case FBR5:
537 s->dma_ch[5].branch = value & 0xfffffff3;
538 break;
539 case FBR6:
540 s->dma_ch[6].branch = value & 0xfffffff3;
541 break;
542
543 case BSCNTR:
544 s->bscntr = value & 0xf;
545 break;
546
547 case PRSR:
548 break;
549
550 case LCSR0:
551 s->status[0] &= ~(value & 0xfff);
552 if (value & LCSR0_BER)
553 s->status[0] &= ~LCSR0_BERCH(7);
554 break;
555
556 case LCSR1:
557 s->status[1] &= ~(value & 0x3e3f3f);
558 break;
559
560 default:
561 fail:
562 cpu_abort(cpu_single_env,
563 "%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
564 }
565 }
566
567 static CPUReadMemoryFunc *pxa2xx_lcdc_readfn[] = {
568 pxa2xx_lcdc_read,
569 pxa2xx_lcdc_read,
570 pxa2xx_lcdc_read
571 };
572
573 static CPUWriteMemoryFunc *pxa2xx_lcdc_writefn[] = {
574 pxa2xx_lcdc_write,
575 pxa2xx_lcdc_write,
576 pxa2xx_lcdc_write
577 };
578
579 /* Load new palette for a given DMA channel, convert to internal format */
580 static void pxa2xx_palette_parse(struct pxa2xx_lcdc_s *s, int ch, int bpp)
581 {
582 int i, n, format, r, g, b, alpha;
583 uint32_t *dest, *src;
584 s->pal_for = LCCR4_PALFOR(s->control[4]);
585 format = s->pal_for;
586
587 switch (bpp) {
588 case pxa_lcdc_2bpp:
589 n = 4;
590 break;
591 case pxa_lcdc_4bpp:
592 n = 16;
593 break;
594 case pxa_lcdc_8bpp:
595 n = 256;
596 break;
597 default:
598 format = 0;
599 return;
600 }
601
602 src = (uint32_t *) s->dma_ch[ch].pbuffer;
603 dest = (uint32_t *) s->dma_ch[ch].palette;
604 alpha = r = g = b = 0;
605
606 for (i = 0; i < n; i ++) {
607 switch (format) {
608 case 0: /* 16 bpp, no transparency */
609 alpha = 0;
610 if (s->control[0] & LCCR0_CMS)
611 r = g = b = *src & 0xff;
612 else {
613 r = (*src & 0xf800) >> 8;
614 g = (*src & 0x07e0) >> 3;
615 b = (*src & 0x001f) << 3;
616 }
617 break;
618 case 1: /* 16 bpp plus transparency */
619 alpha = *src & (1 << 24);
620 if (s->control[0] & LCCR0_CMS)
621 r = g = b = *src & 0xff;
622 else {
623 r = (*src & 0xf800) >> 8;
624 g = (*src & 0x07e0) >> 3;
625 b = (*src & 0x001f) << 3;
626 }
627 break;
628 case 2: /* 18 bpp plus transparency */
629 alpha = *src & (1 << 24);
630 if (s->control[0] & LCCR0_CMS)
631 r = g = b = *src & 0xff;
632 else {
633 r = (*src & 0xf80000) >> 16;
634 g = (*src & 0x00fc00) >> 8;
635 b = (*src & 0x0000f8);
636 }
637 break;
638 case 3: /* 24 bpp plus transparency */
639 alpha = *src & (1 << 24);
640 if (s->control[0] & LCCR0_CMS)
641 r = g = b = *src & 0xff;
642 else {
643 r = (*src & 0xff0000) >> 16;
644 g = (*src & 0x00ff00) >> 8;
645 b = (*src & 0x0000ff);
646 }
647 break;
648 }
649 switch (ds_get_bits_per_pixel(s->ds)) {
650 case 8:
651 *dest = rgb_to_pixel8(r, g, b) | alpha;
652 break;
653 case 15:
654 *dest = rgb_to_pixel15(r, g, b) | alpha;
655 break;
656 case 16:
657 *dest = rgb_to_pixel16(r, g, b) | alpha;
658 break;
659 case 24:
660 *dest = rgb_to_pixel24(r, g, b) | alpha;
661 break;
662 case 32:
663 *dest = rgb_to_pixel32(r, g, b) | alpha;
664 break;
665 }
666 src ++;
667 dest ++;
668 }
669 }
670
671 static void pxa2xx_lcdc_dma0_redraw_horiz(struct pxa2xx_lcdc_s *s,
672 uint8_t *fb, int *miny, int *maxy)
673 {
674 int y, src_width, dest_width, dirty[2];
675 uint8_t *src, *dest;
676 ram_addr_t x, addr, new_addr, start, end;
677 drawfn fn = 0;
678 if (s->dest_width)
679 fn = s->line_fn[s->transp][s->bpp];
680 if (!fn)
681 return;
682
683 src = fb;
684 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
685 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
686 src_width *= 3;
687 else if (s->bpp > pxa_lcdc_16bpp)
688 src_width *= 4;
689 else if (s->bpp > pxa_lcdc_8bpp)
690 src_width *= 2;
691
692 dest = ds_get_data(s->ds);
693 dest_width = s->xres * s->dest_width;
694
695 addr = (ram_addr_t) (fb - phys_ram_base);
696 start = addr + s->yres * src_width;
697 end = addr;
698 dirty[0] = dirty[1] = cpu_physical_memory_get_dirty(addr, VGA_DIRTY_FLAG);
699 for (y = 0; y < s->yres; y ++) {
700 new_addr = addr + src_width;
701 for (x = addr + TARGET_PAGE_SIZE; x < new_addr;
702 x += TARGET_PAGE_SIZE) {
703 dirty[1] = cpu_physical_memory_get_dirty(x, VGA_DIRTY_FLAG);
704 dirty[0] |= dirty[1];
705 }
706 if (dirty[0] || s->invalidated) {
707 fn((uint32_t *) s->dma_ch[0].palette,
708 dest, src, s->xres, s->dest_width);
709 if (addr < start)
710 start = addr;
711 end = new_addr;
712 if (y < *miny)
713 *miny = y;
714 if (y >= *maxy)
715 *maxy = y + 1;
716 }
717 addr = new_addr;
718 dirty[0] = dirty[1];
719 src += src_width;
720 dest += dest_width;
721 }
722
723 if (end > start)
724 cpu_physical_memory_reset_dirty(start, end, VGA_DIRTY_FLAG);
725 }
726
727 static void pxa2xx_lcdc_dma0_redraw_vert(struct pxa2xx_lcdc_s *s,
728 uint8_t *fb, int *miny, int *maxy)
729 {
730 int y, src_width, dest_width, dirty[2];
731 uint8_t *src, *dest;
732 ram_addr_t x, addr, new_addr, start, end;
733 drawfn fn = 0;
734 if (s->dest_width)
735 fn = s->line_fn[s->transp][s->bpp];
736 if (!fn)
737 return;
738
739 src = fb;
740 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
741 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
742 src_width *= 3;
743 else if (s->bpp > pxa_lcdc_16bpp)
744 src_width *= 4;
745 else if (s->bpp > pxa_lcdc_8bpp)
746 src_width *= 2;
747
748 dest_width = s->yres * s->dest_width;
749 dest = ds_get_data(s->ds) + dest_width * (s->xres - 1);
750
751 addr = (ram_addr_t) (fb - phys_ram_base);
752 start = addr + s->yres * src_width;
753 end = addr;
754 x = addr + TARGET_PAGE_SIZE;
755 dirty[0] = dirty[1] = cpu_physical_memory_get_dirty(start, VGA_DIRTY_FLAG);
756 for (y = 0; y < s->yres; y ++) {
757 new_addr = addr + src_width;
758 for (; x < new_addr; x += TARGET_PAGE_SIZE) {
759 dirty[1] = cpu_physical_memory_get_dirty(x, VGA_DIRTY_FLAG);
760 dirty[0] |= dirty[1];
761 }
762 if (dirty[0] || s->invalidated) {
763 fn((uint32_t *) s->dma_ch[0].palette,
764 dest, src, s->xres, -dest_width);
765 if (addr < start)
766 start = addr;
767 end = new_addr;
768 if (y < *miny)
769 *miny = y;
770 if (y >= *maxy)
771 *maxy = y + 1;
772 }
773 addr = new_addr;
774 dirty[0] = dirty[1];
775 src += src_width;
776 dest += s->dest_width;
777 }
778
779 if (end > start)
780 cpu_physical_memory_reset_dirty(start, end, VGA_DIRTY_FLAG);
781 }
782
783 static void pxa2xx_lcdc_resize(struct pxa2xx_lcdc_s *s)
784 {
785 int width, height;
786 if (!(s->control[0] & LCCR0_ENB))
787 return;
788
789 width = LCCR1_PPL(s->control[1]) + 1;
790 height = LCCR2_LPP(s->control[2]) + 1;
791
792 if (width != s->xres || height != s->yres) {
793 if (s->orientation)
794 qemu_console_resize(s->ds, height, width);
795 else
796 qemu_console_resize(s->ds, width, height);
797 s->invalidated = 1;
798 s->xres = width;
799 s->yres = height;
800 }
801 }
802
803 static void pxa2xx_update_display(void *opaque)
804 {
805 struct pxa2xx_lcdc_s *s = (struct pxa2xx_lcdc_s *) opaque;
806 uint8_t *fb;
807 target_phys_addr_t fbptr;
808 int miny, maxy;
809 int ch;
810 if (!(s->control[0] & LCCR0_ENB))
811 return;
812
813 pxa2xx_descriptor_load(s);
814
815 pxa2xx_lcdc_resize(s);
816 miny = s->yres;
817 maxy = 0;
818 s->transp = s->dma_ch[2].up || s->dma_ch[3].up;
819 /* Note: With overlay planes the order depends on LCCR0 bit 25. */
820 for (ch = 0; ch < PXA_LCDDMA_CHANS; ch ++)
821 if (s->dma_ch[ch].up) {
822 if (!s->dma_ch[ch].source) {
823 pxa2xx_dma_ber_set(s, ch);
824 continue;
825 }
826 fbptr = s->dma_ch[ch].source;
827 if (!(fbptr >= PXA2XX_SDRAM_BASE &&
828 fbptr <= PXA2XX_SDRAM_BASE + phys_ram_size)) {
829 pxa2xx_dma_ber_set(s, ch);
830 continue;
831 }
832 fbptr -= PXA2XX_SDRAM_BASE;
833 fb = phys_ram_base + fbptr;
834
835 if (s->dma_ch[ch].command & LDCMD_PAL) {
836 memcpy(s->dma_ch[ch].pbuffer, fb,
837 MAX(LDCMD_LENGTH(s->dma_ch[ch].command),
838 sizeof(s->dma_ch[ch].pbuffer)));
839 pxa2xx_palette_parse(s, ch, s->bpp);
840 } else {
841 /* Do we need to reparse palette */
842 if (LCCR4_PALFOR(s->control[4]) != s->pal_for)
843 pxa2xx_palette_parse(s, ch, s->bpp);
844
845 /* ACK frame start */
846 pxa2xx_dma_sof_set(s, ch);
847
848 s->dma_ch[ch].redraw(s, fb, &miny, &maxy);
849 s->invalidated = 0;
850
851 /* ACK frame completed */
852 pxa2xx_dma_eof_set(s, ch);
853 }
854 }
855
856 if (s->control[0] & LCCR0_DIS) {
857 /* ACK last frame completed */
858 s->control[0] &= ~LCCR0_ENB;
859 s->status[0] |= LCSR0_LDD;
860 }
861
862 if (s->orientation)
863 dpy_update(s->ds, miny, 0, maxy, s->xres);
864 else
865 dpy_update(s->ds, 0, miny, s->xres, maxy);
866 pxa2xx_lcdc_int_update(s);
867
868 qemu_irq_raise(s->vsync_cb);
869 }
870
871 static void pxa2xx_invalidate_display(void *opaque)
872 {
873 struct pxa2xx_lcdc_s *s = (struct pxa2xx_lcdc_s *) opaque;
874 s->invalidated = 1;
875 }
876
877 static void pxa2xx_screen_dump(void *opaque, const char *filename)
878 {
879 /* TODO */
880 }
881
882 static void pxa2xx_lcdc_orientation(void *opaque, int angle)
883 {
884 struct pxa2xx_lcdc_s *s = (struct pxa2xx_lcdc_s *) opaque;
885
886 if (angle) {
887 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_vert;
888 } else {
889 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_horiz;
890 }
891
892 s->orientation = angle;
893 s->xres = s->yres = -1;
894 pxa2xx_lcdc_resize(s);
895 }
896
897 static void pxa2xx_lcdc_save(QEMUFile *f, void *opaque)
898 {
899 struct pxa2xx_lcdc_s *s = (struct pxa2xx_lcdc_s *) opaque;
900 int i;
901
902 qemu_put_be32(f, s->irqlevel);
903 qemu_put_be32(f, s->transp);
904
905 for (i = 0; i < 6; i ++)
906 qemu_put_be32s(f, &s->control[i]);
907 for (i = 0; i < 2; i ++)
908 qemu_put_be32s(f, &s->status[i]);
909 for (i = 0; i < 2; i ++)
910 qemu_put_be32s(f, &s->ovl1c[i]);
911 for (i = 0; i < 2; i ++)
912 qemu_put_be32s(f, &s->ovl2c[i]);
913 qemu_put_be32s(f, &s->ccr);
914 qemu_put_be32s(f, &s->cmdcr);
915 qemu_put_be32s(f, &s->trgbr);
916 qemu_put_be32s(f, &s->tcr);
917 qemu_put_be32s(f, &s->liidr);
918 qemu_put_8s(f, &s->bscntr);
919
920 for (i = 0; i < 7; i ++) {
921 qemu_put_betl(f, s->dma_ch[i].branch);
922 qemu_put_byte(f, s->dma_ch[i].up);
923 qemu_put_buffer(f, s->dma_ch[i].pbuffer, sizeof(s->dma_ch[i].pbuffer));
924
925 qemu_put_betl(f, s->dma_ch[i].descriptor);
926 qemu_put_betl(f, s->dma_ch[i].source);
927 qemu_put_be32s(f, &s->dma_ch[i].id);
928 qemu_put_be32s(f, &s->dma_ch[i].command);
929 }
930 }
931
932 static int pxa2xx_lcdc_load(QEMUFile *f, void *opaque, int version_id)
933 {
934 struct pxa2xx_lcdc_s *s = (struct pxa2xx_lcdc_s *) opaque;
935 int i;
936
937 s->irqlevel = qemu_get_be32(f);
938 s->transp = qemu_get_be32(f);
939
940 for (i = 0; i < 6; i ++)
941 qemu_get_be32s(f, &s->control[i]);
942 for (i = 0; i < 2; i ++)
943 qemu_get_be32s(f, &s->status[i]);
944 for (i = 0; i < 2; i ++)
945 qemu_get_be32s(f, &s->ovl1c[i]);
946 for (i = 0; i < 2; i ++)
947 qemu_get_be32s(f, &s->ovl2c[i]);
948 qemu_get_be32s(f, &s->ccr);
949 qemu_get_be32s(f, &s->cmdcr);
950 qemu_get_be32s(f, &s->trgbr);
951 qemu_get_be32s(f, &s->tcr);
952 qemu_get_be32s(f, &s->liidr);
953 qemu_get_8s(f, &s->bscntr);
954
955 for (i = 0; i < 7; i ++) {
956 s->dma_ch[i].branch = qemu_get_betl(f);
957 s->dma_ch[i].up = qemu_get_byte(f);
958 qemu_get_buffer(f, s->dma_ch[i].pbuffer, sizeof(s->dma_ch[i].pbuffer));
959
960 s->dma_ch[i].descriptor = qemu_get_betl(f);
961 s->dma_ch[i].source = qemu_get_betl(f);
962 qemu_get_be32s(f, &s->dma_ch[i].id);
963 qemu_get_be32s(f, &s->dma_ch[i].command);
964 }
965
966 s->bpp = LCCR3_BPP(s->control[3]);
967 s->xres = s->yres = s->pal_for = -1;
968
969 return 0;
970 }
971
972 #define BITS 8
973 #include "pxa2xx_template.h"
974 #define BITS 15
975 #include "pxa2xx_template.h"
976 #define BITS 16
977 #include "pxa2xx_template.h"
978 #define BITS 24
979 #include "pxa2xx_template.h"
980 #define BITS 32
981 #include "pxa2xx_template.h"
982
983 struct pxa2xx_lcdc_s *pxa2xx_lcdc_init(target_phys_addr_t base, qemu_irq irq)
984 {
985 int iomemtype;
986 struct pxa2xx_lcdc_s *s;
987
988 s = (struct pxa2xx_lcdc_s *) qemu_mallocz(sizeof(struct pxa2xx_lcdc_s));
989 s->invalidated = 1;
990 s->irq = irq;
991
992 pxa2xx_lcdc_orientation(s, graphic_rotate);
993
994 iomemtype = cpu_register_io_memory(0, pxa2xx_lcdc_readfn,
995 pxa2xx_lcdc_writefn, s);
996 cpu_register_physical_memory(base, 0x00100000, iomemtype);
997
998 s->ds = graphic_console_init(pxa2xx_update_display,
999 pxa2xx_invalidate_display,
1000 pxa2xx_screen_dump, NULL, s);
1001
1002 switch (ds_get_bits_per_pixel(s->ds)) {
1003 case 0:
1004 s->dest_width = 0;
1005 break;
1006 case 8:
1007 s->line_fn[0] = pxa2xx_draw_fn_8;
1008 s->line_fn[1] = pxa2xx_draw_fn_8t;
1009 s->dest_width = 1;
1010 break;
1011 case 15:
1012 s->line_fn[0] = pxa2xx_draw_fn_15;
1013 s->line_fn[1] = pxa2xx_draw_fn_15t;
1014 s->dest_width = 2;
1015 break;
1016 case 16:
1017 s->line_fn[0] = pxa2xx_draw_fn_16;
1018 s->line_fn[1] = pxa2xx_draw_fn_16t;
1019 s->dest_width = 2;
1020 break;
1021 case 24:
1022 s->line_fn[0] = pxa2xx_draw_fn_24;
1023 s->line_fn[1] = pxa2xx_draw_fn_24t;
1024 s->dest_width = 3;
1025 break;
1026 case 32:
1027 s->line_fn[0] = pxa2xx_draw_fn_32;
1028 s->line_fn[1] = pxa2xx_draw_fn_32t;
1029 s->dest_width = 4;
1030 break;
1031 default:
1032 fprintf(stderr, "%s: Bad color depth\n", __FUNCTION__);
1033 exit(1);
1034 }
1035
1036 register_savevm("pxa2xx_lcdc", 0, 0,
1037 pxa2xx_lcdc_save, pxa2xx_lcdc_load, s);
1038
1039 return s;
1040 }
1041
1042 void pxa2xx_lcd_vsync_notifier(struct pxa2xx_lcdc_s *s, qemu_irq handler)
1043 {
1044 s->vsync_cb = handler;
1045 }