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eepro100: Add more i825xx devices
[qemu/kevin.git] / hw / pxa2xx_lcd.c
blob930299abd31b7c1deba946058fc832e7f73a1e98
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 #include "framebuffer.h"
17
18 struct PXA2xxLCDState {
19 qemu_irq irq;
20 int irqlevel;
21
22 int invalidated;
23 DisplayState *ds;
24 drawfn *line_fn[2];
25 int dest_width;
26 int xres, yres;
27 int pal_for;
28 int transp;
29 enum {
30 pxa_lcdc_2bpp = 1,
31 pxa_lcdc_4bpp = 2,
32 pxa_lcdc_8bpp = 3,
33 pxa_lcdc_16bpp = 4,
34 pxa_lcdc_18bpp = 5,
35 pxa_lcdc_18pbpp = 6,
36 pxa_lcdc_19bpp = 7,
37 pxa_lcdc_19pbpp = 8,
38 pxa_lcdc_24bpp = 9,
39 pxa_lcdc_25bpp = 10,
40 } bpp;
41
42 uint32_t control[6];
43 uint32_t status[2];
44 uint32_t ovl1c[2];
45 uint32_t ovl2c[2];
46 uint32_t ccr;
47 uint32_t cmdcr;
48 uint32_t trgbr;
49 uint32_t tcr;
50 uint32_t liidr;
51 uint8_t bscntr;
52
53 struct {
54 target_phys_addr_t branch;
55 int up;
56 uint8_t palette[1024];
57 uint8_t pbuffer[1024];
58 void (*redraw)(PXA2xxLCDState *s, target_phys_addr_t addr,
59 int *miny, int *maxy);
60
61 target_phys_addr_t descriptor;
62 target_phys_addr_t source;
63 uint32_t id;
64 uint32_t command;
65 } dma_ch[7];
66
67 qemu_irq vsync_cb;
68 int orientation;
69 };
70
71 typedef struct __attribute__ ((__packed__)) {
72 uint32_t fdaddr;
73 uint32_t fsaddr;
74 uint32_t fidr;
75 uint32_t ldcmd;
76 } PXAFrameDescriptor;
77
78 #define LCCR0 0x000 /* LCD Controller Control register 0 */
79 #define LCCR1 0x004 /* LCD Controller Control register 1 */
80 #define LCCR2 0x008 /* LCD Controller Control register 2 */
81 #define LCCR3 0x00c /* LCD Controller Control register 3 */
82 #define LCCR4 0x010 /* LCD Controller Control register 4 */
83 #define LCCR5 0x014 /* LCD Controller Control register 5 */
84
85 #define FBR0 0x020 /* DMA Channel 0 Frame Branch register */
86 #define FBR1 0x024 /* DMA Channel 1 Frame Branch register */
87 #define FBR2 0x028 /* DMA Channel 2 Frame Branch register */
88 #define FBR3 0x02c /* DMA Channel 3 Frame Branch register */
89 #define FBR4 0x030 /* DMA Channel 4 Frame Branch register */
90 #define FBR5 0x110 /* DMA Channel 5 Frame Branch register */
91 #define FBR6 0x114 /* DMA Channel 6 Frame Branch register */
92
93 #define LCSR1 0x034 /* LCD Controller Status register 1 */
94 #define LCSR0 0x038 /* LCD Controller Status register 0 */
95 #define LIIDR 0x03c /* LCD Controller Interrupt ID register */
96
97 #define TRGBR 0x040 /* TMED RGB Seed register */
98 #define TCR 0x044 /* TMED Control register */
99
100 #define OVL1C1 0x050 /* Overlay 1 Control register 1 */
101 #define OVL1C2 0x060 /* Overlay 1 Control register 2 */
102 #define OVL2C1 0x070 /* Overlay 2 Control register 1 */
103 #define OVL2C2 0x080 /* Overlay 2 Control register 2 */
104 #define CCR 0x090 /* Cursor Control register */
105
106 #define CMDCR 0x100 /* Command Control register */
107 #define PRSR 0x104 /* Panel Read Status register */
108
109 #define PXA_LCDDMA_CHANS 7
110 #define DMA_FDADR 0x00 /* Frame Descriptor Address register */
111 #define DMA_FSADR 0x04 /* Frame Source Address register */
112 #define DMA_FIDR 0x08 /* Frame ID register */
113 #define DMA_LDCMD 0x0c /* Command register */
114
115 /* LCD Buffer Strength Control register */
116 #define BSCNTR 0x04000054
117
118 /* Bitfield masks */
119 #define LCCR0_ENB (1 << 0)
120 #define LCCR0_CMS (1 << 1)
121 #define LCCR0_SDS (1 << 2)
122 #define LCCR0_LDM (1 << 3)
123 #define LCCR0_SOFM0 (1 << 4)
124 #define LCCR0_IUM (1 << 5)
125 #define LCCR0_EOFM0 (1 << 6)
126 #define LCCR0_PAS (1 << 7)
127 #define LCCR0_DPD (1 << 9)
128 #define LCCR0_DIS (1 << 10)
129 #define LCCR0_QDM (1 << 11)
130 #define LCCR0_PDD (0xff << 12)
131 #define LCCR0_BSM0 (1 << 20)
132 #define LCCR0_OUM (1 << 21)
133 #define LCCR0_LCDT (1 << 22)
134 #define LCCR0_RDSTM (1 << 23)
135 #define LCCR0_CMDIM (1 << 24)
136 #define LCCR0_OUC (1 << 25)
137 #define LCCR0_LDDALT (1 << 26)
138 #define LCCR1_PPL(x) ((x) & 0x3ff)
139 #define LCCR2_LPP(x) ((x) & 0x3ff)
140 #define LCCR3_API (15 << 16)
141 #define LCCR3_BPP(x) ((((x) >> 24) & 7) | (((x) >> 26) & 8))
142 #define LCCR3_PDFOR(x) (((x) >> 30) & 3)
143 #define LCCR4_K1(x) (((x) >> 0) & 7)
144 #define LCCR4_K2(x) (((x) >> 3) & 7)
145 #define LCCR4_K3(x) (((x) >> 6) & 7)
146 #define LCCR4_PALFOR(x) (((x) >> 15) & 3)
147 #define LCCR5_SOFM(ch) (1 << (ch - 1))
148 #define LCCR5_EOFM(ch) (1 << (ch + 7))
149 #define LCCR5_BSM(ch) (1 << (ch + 15))
150 #define LCCR5_IUM(ch) (1 << (ch + 23))
151 #define OVLC1_EN (1 << 31)
152 #define CCR_CEN (1 << 31)
153 #define FBR_BRA (1 << 0)
154 #define FBR_BINT (1 << 1)
155 #define FBR_SRCADDR (0xfffffff << 4)
156 #define LCSR0_LDD (1 << 0)
157 #define LCSR0_SOF0 (1 << 1)
158 #define LCSR0_BER (1 << 2)
159 #define LCSR0_ABC (1 << 3)
160 #define LCSR0_IU0 (1 << 4)
161 #define LCSR0_IU1 (1 << 5)
162 #define LCSR0_OU (1 << 6)
163 #define LCSR0_QD (1 << 7)
164 #define LCSR0_EOF0 (1 << 8)
165 #define LCSR0_BS0 (1 << 9)
166 #define LCSR0_SINT (1 << 10)
167 #define LCSR0_RDST (1 << 11)
168 #define LCSR0_CMDINT (1 << 12)
169 #define LCSR0_BERCH(x) (((x) & 7) << 28)
170 #define LCSR1_SOF(ch) (1 << (ch - 1))
171 #define LCSR1_EOF(ch) (1 << (ch + 7))
172 #define LCSR1_BS(ch) (1 << (ch + 15))
173 #define LCSR1_IU(ch) (1 << (ch + 23))
174 #define LDCMD_LENGTH(x) ((x) & 0x001ffffc)
175 #define LDCMD_EOFINT (1 << 21)
176 #define LDCMD_SOFINT (1 << 22)
177 #define LDCMD_PAL (1 << 26)
178
179 /* Route internal interrupt lines to the global IC */
180 static void pxa2xx_lcdc_int_update(PXA2xxLCDState *s)
181 {
182 int level = 0;
183 level |= (s->status[0] & LCSR0_LDD) && !(s->control[0] & LCCR0_LDM);
184 level |= (s->status[0] & LCSR0_SOF0) && !(s->control[0] & LCCR0_SOFM0);
185 level |= (s->status[0] & LCSR0_IU0) && !(s->control[0] & LCCR0_IUM);
186 level |= (s->status[0] & LCSR0_IU1) && !(s->control[5] & LCCR5_IUM(1));
187 level |= (s->status[0] & LCSR0_OU) && !(s->control[0] & LCCR0_OUM);
188 level |= (s->status[0] & LCSR0_QD) && !(s->control[0] & LCCR0_QDM);
189 level |= (s->status[0] & LCSR0_EOF0) && !(s->control[0] & LCCR0_EOFM0);
190 level |= (s->status[0] & LCSR0_BS0) && !(s->control[0] & LCCR0_BSM0);
191 level |= (s->status[0] & LCSR0_RDST) && !(s->control[0] & LCCR0_RDSTM);
192 level |= (s->status[0] & LCSR0_CMDINT) && !(s->control[0] & LCCR0_CMDIM);
193 level |= (s->status[1] & ~s->control[5]);
194
195 qemu_set_irq(s->irq, !!level);
196 s->irqlevel = level;
197 }
198
199 /* Set Branch Status interrupt high and poke associated registers */
200 static inline void pxa2xx_dma_bs_set(PXA2xxLCDState *s, int ch)
201 {
202 int unmasked;
203 if (ch == 0) {
204 s->status[0] |= LCSR0_BS0;
205 unmasked = !(s->control[0] & LCCR0_BSM0);
206 } else {
207 s->status[1] |= LCSR1_BS(ch);
208 unmasked = !(s->control[5] & LCCR5_BSM(ch));
209 }
210
211 if (unmasked) {
212 if (s->irqlevel)
213 s->status[0] |= LCSR0_SINT;
214 else
215 s->liidr = s->dma_ch[ch].id;
216 }
217 }
218
219 /* Set Start Of Frame Status interrupt high and poke associated registers */
220 static inline void pxa2xx_dma_sof_set(PXA2xxLCDState *s, int ch)
221 {
222 int unmasked;
223 if (!(s->dma_ch[ch].command & LDCMD_SOFINT))
224 return;
225
226 if (ch == 0) {
227 s->status[0] |= LCSR0_SOF0;
228 unmasked = !(s->control[0] & LCCR0_SOFM0);
229 } else {
230 s->status[1] |= LCSR1_SOF(ch);
231 unmasked = !(s->control[5] & LCCR5_SOFM(ch));
232 }
233
234 if (unmasked) {
235 if (s->irqlevel)
236 s->status[0] |= LCSR0_SINT;
237 else
238 s->liidr = s->dma_ch[ch].id;
239 }
240 }
241
242 /* Set End Of Frame Status interrupt high and poke associated registers */
243 static inline void pxa2xx_dma_eof_set(PXA2xxLCDState *s, int ch)
244 {
245 int unmasked;
246 if (!(s->dma_ch[ch].command & LDCMD_EOFINT))
247 return;
248
249 if (ch == 0) {
250 s->status[0] |= LCSR0_EOF0;
251 unmasked = !(s->control[0] & LCCR0_EOFM0);
252 } else {
253 s->status[1] |= LCSR1_EOF(ch);
254 unmasked = !(s->control[5] & LCCR5_EOFM(ch));
255 }
256
257 if (unmasked) {
258 if (s->irqlevel)
259 s->status[0] |= LCSR0_SINT;
260 else
261 s->liidr = s->dma_ch[ch].id;
262 }
263 }
264
265 /* Set Bus Error Status interrupt high and poke associated registers */
266 static inline void pxa2xx_dma_ber_set(PXA2xxLCDState *s, int ch)
267 {
268 s->status[0] |= LCSR0_BERCH(ch) | LCSR0_BER;
269 if (s->irqlevel)
270 s->status[0] |= LCSR0_SINT;
271 else
272 s->liidr = s->dma_ch[ch].id;
273 }
274
275 /* Set Read Status interrupt high and poke associated registers */
276 static inline void pxa2xx_dma_rdst_set(PXA2xxLCDState *s)
277 {
278 s->status[0] |= LCSR0_RDST;
279 if (s->irqlevel && !(s->control[0] & LCCR0_RDSTM))
280 s->status[0] |= LCSR0_SINT;
281 }
282
283 /* Load new Frame Descriptors from DMA */
284 static void pxa2xx_descriptor_load(PXA2xxLCDState *s)
285 {
286 PXAFrameDescriptor desc;
287 target_phys_addr_t descptr;
288 int i;
289
290 for (i = 0; i < PXA_LCDDMA_CHANS; i ++) {
291 s->dma_ch[i].source = 0;
292
293 if (!s->dma_ch[i].up)
294 continue;
295
296 if (s->dma_ch[i].branch & FBR_BRA) {
297 descptr = s->dma_ch[i].branch & FBR_SRCADDR;
298 if (s->dma_ch[i].branch & FBR_BINT)
299 pxa2xx_dma_bs_set(s, i);
300 s->dma_ch[i].branch &= ~FBR_BRA;
301 } else
302 descptr = s->dma_ch[i].descriptor;
303
304 if (!(descptr >= PXA2XX_SDRAM_BASE && descptr +
305 sizeof(desc) <= PXA2XX_SDRAM_BASE + ram_size))
306 continue;
307
308 cpu_physical_memory_read(descptr, (void *)&desc, sizeof(desc));
309 s->dma_ch[i].descriptor = tswap32(desc.fdaddr);
310 s->dma_ch[i].source = tswap32(desc.fsaddr);
311 s->dma_ch[i].id = tswap32(desc.fidr);
312 s->dma_ch[i].command = tswap32(desc.ldcmd);
313 }
314 }
315
316 static uint32_t pxa2xx_lcdc_read(void *opaque, target_phys_addr_t offset)
317 {
318 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
319 int ch;
320
321 switch (offset) {
322 case LCCR0:
323 return s->control[0];
324 case LCCR1:
325 return s->control[1];
326 case LCCR2:
327 return s->control[2];
328 case LCCR3:
329 return s->control[3];
330 case LCCR4:
331 return s->control[4];
332 case LCCR5:
333 return s->control[5];
334
335 case OVL1C1:
336 return s->ovl1c[0];
337 case OVL1C2:
338 return s->ovl1c[1];
339 case OVL2C1:
340 return s->ovl2c[0];
341 case OVL2C2:
342 return s->ovl2c[1];
343
344 case CCR:
345 return s->ccr;
346
347 case CMDCR:
348 return s->cmdcr;
349
350 case TRGBR:
351 return s->trgbr;
352 case TCR:
353 return s->tcr;
354
355 case 0x200 ... 0x1000: /* DMA per-channel registers */
356 ch = (offset - 0x200) >> 4;
357 if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS))
358 goto fail;
359
360 switch (offset & 0xf) {
361 case DMA_FDADR:
362 return s->dma_ch[ch].descriptor;
363 case DMA_FSADR:
364 return s->dma_ch[ch].source;
365 case DMA_FIDR:
366 return s->dma_ch[ch].id;
367 case DMA_LDCMD:
368 return s->dma_ch[ch].command;
369 default:
370 goto fail;
371 }
372
373 case FBR0:
374 return s->dma_ch[0].branch;
375 case FBR1:
376 return s->dma_ch[1].branch;
377 case FBR2:
378 return s->dma_ch[2].branch;
379 case FBR3:
380 return s->dma_ch[3].branch;
381 case FBR4:
382 return s->dma_ch[4].branch;
383 case FBR5:
384 return s->dma_ch[5].branch;
385 case FBR6:
386 return s->dma_ch[6].branch;
387
388 case BSCNTR:
389 return s->bscntr;
390
391 case PRSR:
392 return 0;
393
394 case LCSR0:
395 return s->status[0];
396 case LCSR1:
397 return s->status[1];
398 case LIIDR:
399 return s->liidr;
400
401 default:
402 fail:
403 hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
404 }
405
406 return 0;
407 }
408
409 static void pxa2xx_lcdc_write(void *opaque,
410 target_phys_addr_t offset, uint32_t value)
411 {
412 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
413 int ch;
414
415 switch (offset) {
416 case LCCR0:
417 /* ACK Quick Disable done */
418 if ((s->control[0] & LCCR0_ENB) && !(value & LCCR0_ENB))
419 s->status[0] |= LCSR0_QD;
420
421 if (!(s->control[0] & LCCR0_LCDT) && (value & LCCR0_LCDT))
422 printf("%s: internal frame buffer unsupported\n", __FUNCTION__);
423
424 if ((s->control[3] & LCCR3_API) &&
425 (value & LCCR0_ENB) && !(value & LCCR0_LCDT))
426 s->status[0] |= LCSR0_ABC;
427
428 s->control[0] = value & 0x07ffffff;
429 pxa2xx_lcdc_int_update(s);
430
431 s->dma_ch[0].up = !!(value & LCCR0_ENB);
432 s->dma_ch[1].up = (s->ovl1c[0] & OVLC1_EN) || (value & LCCR0_SDS);
433 break;
434
435 case LCCR1:
436 s->control[1] = value;
437 break;
438
439 case LCCR2:
440 s->control[2] = value;
441 break;
442
443 case LCCR3:
444 s->control[3] = value & 0xefffffff;
445 s->bpp = LCCR3_BPP(value);
446 break;
447
448 case LCCR4:
449 s->control[4] = value & 0x83ff81ff;
450 break;
451
452 case LCCR5:
453 s->control[5] = value & 0x3f3f3f3f;
454 break;
455
456 case OVL1C1:
457 if (!(s->ovl1c[0] & OVLC1_EN) && (value & OVLC1_EN))
458 printf("%s: Overlay 1 not supported\n", __FUNCTION__);
459
460 s->ovl1c[0] = value & 0x80ffffff;
461 s->dma_ch[1].up = (value & OVLC1_EN) || (s->control[0] & LCCR0_SDS);
462 break;
463
464 case OVL1C2:
465 s->ovl1c[1] = value & 0x000fffff;
466 break;
467
468 case OVL2C1:
469 if (!(s->ovl2c[0] & OVLC1_EN) && (value & OVLC1_EN))
470 printf("%s: Overlay 2 not supported\n", __FUNCTION__);
471
472 s->ovl2c[0] = value & 0x80ffffff;
473 s->dma_ch[2].up = !!(value & OVLC1_EN);
474 s->dma_ch[3].up = !!(value & OVLC1_EN);
475 s->dma_ch[4].up = !!(value & OVLC1_EN);
476 break;
477
478 case OVL2C2:
479 s->ovl2c[1] = value & 0x007fffff;
480 break;
481
482 case CCR:
483 if (!(s->ccr & CCR_CEN) && (value & CCR_CEN))
484 printf("%s: Hardware cursor unimplemented\n", __FUNCTION__);
485
486 s->ccr = value & 0x81ffffe7;
487 s->dma_ch[5].up = !!(value & CCR_CEN);
488 break;
489
490 case CMDCR:
491 s->cmdcr = value & 0xff;
492 break;
493
494 case TRGBR:
495 s->trgbr = value & 0x00ffffff;
496 break;
497
498 case TCR:
499 s->tcr = value & 0x7fff;
500 break;
501
502 case 0x200 ... 0x1000: /* DMA per-channel registers */
503 ch = (offset - 0x200) >> 4;
504 if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS))
505 goto fail;
506
507 switch (offset & 0xf) {
508 case DMA_FDADR:
509 s->dma_ch[ch].descriptor = value & 0xfffffff0;
510 break;
511
512 default:
513 goto fail;
514 }
515 break;
516
517 case FBR0:
518 s->dma_ch[0].branch = value & 0xfffffff3;
519 break;
520 case FBR1:
521 s->dma_ch[1].branch = value & 0xfffffff3;
522 break;
523 case FBR2:
524 s->dma_ch[2].branch = value & 0xfffffff3;
525 break;
526 case FBR3:
527 s->dma_ch[3].branch = value & 0xfffffff3;
528 break;
529 case FBR4:
530 s->dma_ch[4].branch = value & 0xfffffff3;
531 break;
532 case FBR5:
533 s->dma_ch[5].branch = value & 0xfffffff3;
534 break;
535 case FBR6:
536 s->dma_ch[6].branch = value & 0xfffffff3;
537 break;
538
539 case BSCNTR:
540 s->bscntr = value & 0xf;
541 break;
542
543 case PRSR:
544 break;
545
546 case LCSR0:
547 s->status[0] &= ~(value & 0xfff);
548 if (value & LCSR0_BER)
549 s->status[0] &= ~LCSR0_BERCH(7);
550 break;
551
552 case LCSR1:
553 s->status[1] &= ~(value & 0x3e3f3f);
554 break;
555
556 default:
557 fail:
558 hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
559 }
560 }
561
562 static CPUReadMemoryFunc * const pxa2xx_lcdc_readfn[] = {
563 pxa2xx_lcdc_read,
564 pxa2xx_lcdc_read,
565 pxa2xx_lcdc_read
566 };
567
568 static CPUWriteMemoryFunc * const pxa2xx_lcdc_writefn[] = {
569 pxa2xx_lcdc_write,
570 pxa2xx_lcdc_write,
571 pxa2xx_lcdc_write
572 };
573
574 /* Load new palette for a given DMA channel, convert to internal format */
575 static void pxa2xx_palette_parse(PXA2xxLCDState *s, int ch, int bpp)
576 {
577 int i, n, format, r, g, b, alpha;
578 uint32_t *dest, *src;
579 s->pal_for = LCCR4_PALFOR(s->control[4]);
580 format = s->pal_for;
581
582 switch (bpp) {
583 case pxa_lcdc_2bpp:
584 n = 4;
585 break;
586 case pxa_lcdc_4bpp:
587 n = 16;
588 break;
589 case pxa_lcdc_8bpp:
590 n = 256;
591 break;
592 default:
593 format = 0;
594 return;
595 }
596
597 src = (uint32_t *) s->dma_ch[ch].pbuffer;
598 dest = (uint32_t *) s->dma_ch[ch].palette;
599 alpha = r = g = b = 0;
600
601 for (i = 0; i < n; i ++) {
602 switch (format) {
603 case 0: /* 16 bpp, no transparency */
604 alpha = 0;
605 if (s->control[0] & LCCR0_CMS)
606 r = g = b = *src & 0xff;
607 else {
608 r = (*src & 0xf800) >> 8;
609 g = (*src & 0x07e0) >> 3;
610 b = (*src & 0x001f) << 3;
611 }
612 break;
613 case 1: /* 16 bpp plus transparency */
614 alpha = *src & (1 << 24);
615 if (s->control[0] & LCCR0_CMS)
616 r = g = b = *src & 0xff;
617 else {
618 r = (*src & 0xf800) >> 8;
619 g = (*src & 0x07e0) >> 3;
620 b = (*src & 0x001f) << 3;
621 }
622 break;
623 case 2: /* 18 bpp plus transparency */
624 alpha = *src & (1 << 24);
625 if (s->control[0] & LCCR0_CMS)
626 r = g = b = *src & 0xff;
627 else {
628 r = (*src & 0xf80000) >> 16;
629 g = (*src & 0x00fc00) >> 8;
630 b = (*src & 0x0000f8);
631 }
632 break;
633 case 3: /* 24 bpp plus transparency */
634 alpha = *src & (1 << 24);
635 if (s->control[0] & LCCR0_CMS)
636 r = g = b = *src & 0xff;
637 else {
638 r = (*src & 0xff0000) >> 16;
639 g = (*src & 0x00ff00) >> 8;
640 b = (*src & 0x0000ff);
641 }
642 break;
643 }
644 switch (ds_get_bits_per_pixel(s->ds)) {
645 case 8:
646 *dest = rgb_to_pixel8(r, g, b) | alpha;
647 break;
648 case 15:
649 *dest = rgb_to_pixel15(r, g, b) | alpha;
650 break;
651 case 16:
652 *dest = rgb_to_pixel16(r, g, b) | alpha;
653 break;
654 case 24:
655 *dest = rgb_to_pixel24(r, g, b) | alpha;
656 break;
657 case 32:
658 *dest = rgb_to_pixel32(r, g, b) | alpha;
659 break;
660 }
661 src ++;
662 dest ++;
663 }
664 }
665
666 static void pxa2xx_lcdc_dma0_redraw_horiz(PXA2xxLCDState *s,
667 target_phys_addr_t addr, int *miny, int *maxy)
668 {
669 int src_width, dest_width;
670 drawfn fn = NULL;
671 if (s->dest_width)
672 fn = s->line_fn[s->transp][s->bpp];
673 if (!fn)
674 return;
675
676 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
677 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
678 src_width *= 3;
679 else if (s->bpp > pxa_lcdc_16bpp)
680 src_width *= 4;
681 else if (s->bpp > pxa_lcdc_8bpp)
682 src_width *= 2;
683
684 dest_width = s->xres * s->dest_width;
685 *miny = 0;
686 framebuffer_update_display(s->ds,
687 addr, s->xres, s->yres,
688 src_width, dest_width, s->dest_width,
689 s->invalidated,
690 fn, s->dma_ch[0].palette, miny, maxy);
691 }
692
693 static void pxa2xx_lcdc_dma0_redraw_vert(PXA2xxLCDState *s,
694 target_phys_addr_t addr, int *miny, int *maxy)
695 {
696 int src_width, dest_width;
697 drawfn fn = NULL;
698 if (s->dest_width)
699 fn = s->line_fn[s->transp][s->bpp];
700 if (!fn)
701 return;
702
703 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
704 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
705 src_width *= 3;
706 else if (s->bpp > pxa_lcdc_16bpp)
707 src_width *= 4;
708 else if (s->bpp > pxa_lcdc_8bpp)
709 src_width *= 2;
710
711 dest_width = s->yres * s->dest_width;
712 *miny = 0;
713 framebuffer_update_display(s->ds,
714 addr, s->xres, s->yres,
715 src_width, s->dest_width, -dest_width,
716 s->invalidated,
717 fn, s->dma_ch[0].palette,
718 miny, maxy);
719 }
720
721 static void pxa2xx_lcdc_resize(PXA2xxLCDState *s)
722 {
723 int width, height;
724 if (!(s->control[0] & LCCR0_ENB))
725 return;
726
727 width = LCCR1_PPL(s->control[1]) + 1;
728 height = LCCR2_LPP(s->control[2]) + 1;
729
730 if (width != s->xres || height != s->yres) {
731 if (s->orientation)
732 qemu_console_resize(s->ds, height, width);
733 else
734 qemu_console_resize(s->ds, width, height);
735 s->invalidated = 1;
736 s->xres = width;
737 s->yres = height;
738 }
739 }
740
741 static void pxa2xx_update_display(void *opaque)
742 {
743 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
744 target_phys_addr_t fbptr;
745 int miny, maxy;
746 int ch;
747 if (!(s->control[0] & LCCR0_ENB))
748 return;
749
750 pxa2xx_descriptor_load(s);
751
752 pxa2xx_lcdc_resize(s);
753 miny = s->yres;
754 maxy = 0;
755 s->transp = s->dma_ch[2].up || s->dma_ch[3].up;
756 /* Note: With overlay planes the order depends on LCCR0 bit 25. */
757 for (ch = 0; ch < PXA_LCDDMA_CHANS; ch ++)
758 if (s->dma_ch[ch].up) {
759 if (!s->dma_ch[ch].source) {
760 pxa2xx_dma_ber_set(s, ch);
761 continue;
762 }
763 fbptr = s->dma_ch[ch].source;
764 if (!(fbptr >= PXA2XX_SDRAM_BASE &&
765 fbptr <= PXA2XX_SDRAM_BASE + ram_size)) {
766 pxa2xx_dma_ber_set(s, ch);
767 continue;
768 }
769
770 if (s->dma_ch[ch].command & LDCMD_PAL) {
771 cpu_physical_memory_read(fbptr, s->dma_ch[ch].pbuffer,
772 MAX(LDCMD_LENGTH(s->dma_ch[ch].command),
773 sizeof(s->dma_ch[ch].pbuffer)));
774 pxa2xx_palette_parse(s, ch, s->bpp);
775 } else {
776 /* Do we need to reparse palette */
777 if (LCCR4_PALFOR(s->control[4]) != s->pal_for)
778 pxa2xx_palette_parse(s, ch, s->bpp);
779
780 /* ACK frame start */
781 pxa2xx_dma_sof_set(s, ch);
782
783 s->dma_ch[ch].redraw(s, fbptr, &miny, &maxy);
784 s->invalidated = 0;
785
786 /* ACK frame completed */
787 pxa2xx_dma_eof_set(s, ch);
788 }
789 }
790
791 if (s->control[0] & LCCR0_DIS) {
792 /* ACK last frame completed */
793 s->control[0] &= ~LCCR0_ENB;
794 s->status[0] |= LCSR0_LDD;
795 }
796
797 if (miny >= 0) {
798 if (s->orientation)
799 dpy_update(s->ds, miny, 0, maxy, s->xres);
800 else
801 dpy_update(s->ds, 0, miny, s->xres, maxy);
802 }
803 pxa2xx_lcdc_int_update(s);
804
805 qemu_irq_raise(s->vsync_cb);
806 }
807
808 static void pxa2xx_invalidate_display(void *opaque)
809 {
810 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
811 s->invalidated = 1;
812 }
813
814 static void pxa2xx_screen_dump(void *opaque, const char *filename)
815 {
816 /* TODO */
817 }
818
819 static void pxa2xx_lcdc_orientation(void *opaque, int angle)
820 {
821 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
822
823 if (angle) {
824 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_vert;
825 } else {
826 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_horiz;
827 }
828
829 s->orientation = angle;
830 s->xres = s->yres = -1;
831 pxa2xx_lcdc_resize(s);
832 }
833
834 static void pxa2xx_lcdc_save(QEMUFile *f, void *opaque)
835 {
836 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
837 int i;
838
839 qemu_put_be32(f, s->irqlevel);
840 qemu_put_be32(f, s->transp);
841
842 for (i = 0; i < 6; i ++)
843 qemu_put_be32s(f, &s->control[i]);
844 for (i = 0; i < 2; i ++)
845 qemu_put_be32s(f, &s->status[i]);
846 for (i = 0; i < 2; i ++)
847 qemu_put_be32s(f, &s->ovl1c[i]);
848 for (i = 0; i < 2; i ++)
849 qemu_put_be32s(f, &s->ovl2c[i]);
850 qemu_put_be32s(f, &s->ccr);
851 qemu_put_be32s(f, &s->cmdcr);
852 qemu_put_be32s(f, &s->trgbr);
853 qemu_put_be32s(f, &s->tcr);
854 qemu_put_be32s(f, &s->liidr);
855 qemu_put_8s(f, &s->bscntr);
856
857 for (i = 0; i < 7; i ++) {
858 qemu_put_betl(f, s->dma_ch[i].branch);
859 qemu_put_byte(f, s->dma_ch[i].up);
860 qemu_put_buffer(f, s->dma_ch[i].pbuffer, sizeof(s->dma_ch[i].pbuffer));
861
862 qemu_put_betl(f, s->dma_ch[i].descriptor);
863 qemu_put_betl(f, s->dma_ch[i].source);
864 qemu_put_be32s(f, &s->dma_ch[i].id);
865 qemu_put_be32s(f, &s->dma_ch[i].command);
866 }
867 }
868
869 static int pxa2xx_lcdc_load(QEMUFile *f, void *opaque, int version_id)
870 {
871 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
872 int i;
873
874 s->irqlevel = qemu_get_be32(f);
875 s->transp = qemu_get_be32(f);
876
877 for (i = 0; i < 6; i ++)
878 qemu_get_be32s(f, &s->control[i]);
879 for (i = 0; i < 2; i ++)
880 qemu_get_be32s(f, &s->status[i]);
881 for (i = 0; i < 2; i ++)
882 qemu_get_be32s(f, &s->ovl1c[i]);
883 for (i = 0; i < 2; i ++)
884 qemu_get_be32s(f, &s->ovl2c[i]);
885 qemu_get_be32s(f, &s->ccr);
886 qemu_get_be32s(f, &s->cmdcr);
887 qemu_get_be32s(f, &s->trgbr);
888 qemu_get_be32s(f, &s->tcr);
889 qemu_get_be32s(f, &s->liidr);
890 qemu_get_8s(f, &s->bscntr);
891
892 for (i = 0; i < 7; i ++) {
893 s->dma_ch[i].branch = qemu_get_betl(f);
894 s->dma_ch[i].up = qemu_get_byte(f);
895 qemu_get_buffer(f, s->dma_ch[i].pbuffer, sizeof(s->dma_ch[i].pbuffer));
896
897 s->dma_ch[i].descriptor = qemu_get_betl(f);
898 s->dma_ch[i].source = qemu_get_betl(f);
899 qemu_get_be32s(f, &s->dma_ch[i].id);
900 qemu_get_be32s(f, &s->dma_ch[i].command);
901 }
902
903 s->bpp = LCCR3_BPP(s->control[3]);
904 s->xres = s->yres = s->pal_for = -1;
905
906 return 0;
907 }
908
909 #define BITS 8
910 #include "pxa2xx_template.h"
911 #define BITS 15
912 #include "pxa2xx_template.h"
913 #define BITS 16
914 #include "pxa2xx_template.h"
915 #define BITS 24
916 #include "pxa2xx_template.h"
917 #define BITS 32
918 #include "pxa2xx_template.h"
919
920 PXA2xxLCDState *pxa2xx_lcdc_init(target_phys_addr_t base, qemu_irq irq)
921 {
922 int iomemtype;
923 PXA2xxLCDState *s;
924
925 s = (PXA2xxLCDState *) qemu_mallocz(sizeof(PXA2xxLCDState));
926 s->invalidated = 1;
927 s->irq = irq;
928
929 pxa2xx_lcdc_orientation(s, graphic_rotate);
930
931 iomemtype = cpu_register_io_memory(pxa2xx_lcdc_readfn,
932 pxa2xx_lcdc_writefn, s);
933 cpu_register_physical_memory(base, 0x00100000, iomemtype);
934
935 s->ds = graphic_console_init(pxa2xx_update_display,
936 pxa2xx_invalidate_display,
937 pxa2xx_screen_dump, NULL, s);
938
939 switch (ds_get_bits_per_pixel(s->ds)) {
940 case 0:
941 s->dest_width = 0;
942 break;
943 case 8:
944 s->line_fn[0] = pxa2xx_draw_fn_8;
945 s->line_fn[1] = pxa2xx_draw_fn_8t;
946 s->dest_width = 1;
947 break;
948 case 15:
949 s->line_fn[0] = pxa2xx_draw_fn_15;
950 s->line_fn[1] = pxa2xx_draw_fn_15t;
951 s->dest_width = 2;
952 break;
953 case 16:
954 s->line_fn[0] = pxa2xx_draw_fn_16;
955 s->line_fn[1] = pxa2xx_draw_fn_16t;
956 s->dest_width = 2;
957 break;
958 case 24:
959 s->line_fn[0] = pxa2xx_draw_fn_24;
960 s->line_fn[1] = pxa2xx_draw_fn_24t;
961 s->dest_width = 3;
962 break;
963 case 32:
964 s->line_fn[0] = pxa2xx_draw_fn_32;
965 s->line_fn[1] = pxa2xx_draw_fn_32t;
966 s->dest_width = 4;
967 break;
968 default:
969 fprintf(stderr, "%s: Bad color depth\n", __FUNCTION__);
970 exit(1);
971 }
972
973 register_savevm("pxa2xx_lcdc", 0, 0,
974 pxa2xx_lcdc_save, pxa2xx_lcdc_load, s);
975
976 return s;
977 }
978
979 void pxa2xx_lcd_vsync_notifier(PXA2xxLCDState *s, qemu_irq handler)
980 {
981 s->vsync_cb = handler;
982 }
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