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 "qemu/log.h"
15 #include "hw/irq.h"
16 #include "migration/vmstate.h"
17 #include "ui/console.h"
18 #include "hw/arm/pxa.h"
19 #include "ui/pixel_ops.h"
20 #include "hw/boards.h"
21 /* FIXME: For graphic_rotate. Should probably be done in common code. */
22 #include "sysemu/sysemu.h"
23 #include "framebuffer.h"
24
25 struct DMAChannel {
26 uint32_t branch;
27 uint8_t up;
28 uint8_t palette[1024];
29 uint8_t pbuffer[1024];
30 void (*redraw)(PXA2xxLCDState *s, hwaddr addr,
31 int *miny, int *maxy);
32
33 uint32_t descriptor;
34 uint32_t source;
35 uint32_t id;
36 uint32_t command;
37 };
38
39 struct PXA2xxLCDState {
40 MemoryRegion *sysmem;
41 MemoryRegion iomem;
42 MemoryRegionSection fbsection;
43 qemu_irq irq;
44 int irqlevel;
45
46 int invalidated;
47 QemuConsole *con;
48 int dest_width;
49 int xres, yres;
50 int pal_for;
51 int transp;
52 enum {
53 pxa_lcdc_2bpp = 1,
54 pxa_lcdc_4bpp = 2,
55 pxa_lcdc_8bpp = 3,
56 pxa_lcdc_16bpp = 4,
57 pxa_lcdc_18bpp = 5,
58 pxa_lcdc_18pbpp = 6,
59 pxa_lcdc_19bpp = 7,
60 pxa_lcdc_19pbpp = 8,
61 pxa_lcdc_24bpp = 9,
62 pxa_lcdc_25bpp = 10,
63 } bpp;
64
65 uint32_t control[6];
66 uint32_t status[2];
67 uint32_t ovl1c[2];
68 uint32_t ovl2c[2];
69 uint32_t ccr;
70 uint32_t cmdcr;
71 uint32_t trgbr;
72 uint32_t tcr;
73 uint32_t liidr;
74 uint8_t bscntr;
75
76 struct DMAChannel dma_ch[7];
77
78 qemu_irq vsync_cb;
79 int orientation;
80 };
81
82 typedef struct QEMU_PACKED {
83 uint32_t fdaddr;
84 uint32_t fsaddr;
85 uint32_t fidr;
86 uint32_t ldcmd;
87 } PXAFrameDescriptor;
88
89 #define LCCR0 0x000 /* LCD Controller Control register 0 */
90 #define LCCR1 0x004 /* LCD Controller Control register 1 */
91 #define LCCR2 0x008 /* LCD Controller Control register 2 */
92 #define LCCR3 0x00c /* LCD Controller Control register 3 */
93 #define LCCR4 0x010 /* LCD Controller Control register 4 */
94 #define LCCR5 0x014 /* LCD Controller Control register 5 */
95
96 #define FBR0 0x020 /* DMA Channel 0 Frame Branch register */
97 #define FBR1 0x024 /* DMA Channel 1 Frame Branch register */
98 #define FBR2 0x028 /* DMA Channel 2 Frame Branch register */
99 #define FBR3 0x02c /* DMA Channel 3 Frame Branch register */
100 #define FBR4 0x030 /* DMA Channel 4 Frame Branch register */
101 #define FBR5 0x110 /* DMA Channel 5 Frame Branch register */
102 #define FBR6 0x114 /* DMA Channel 6 Frame Branch register */
103
104 #define LCSR1 0x034 /* LCD Controller Status register 1 */
105 #define LCSR0 0x038 /* LCD Controller Status register 0 */
106 #define LIIDR 0x03c /* LCD Controller Interrupt ID register */
107
108 #define TRGBR 0x040 /* TMED RGB Seed register */
109 #define TCR 0x044 /* TMED Control register */
110
111 #define OVL1C1 0x050 /* Overlay 1 Control register 1 */
112 #define OVL1C2 0x060 /* Overlay 1 Control register 2 */
113 #define OVL2C1 0x070 /* Overlay 2 Control register 1 */
114 #define OVL2C2 0x080 /* Overlay 2 Control register 2 */
115 #define CCR 0x090 /* Cursor Control register */
116
117 #define CMDCR 0x100 /* Command Control register */
118 #define PRSR 0x104 /* Panel Read Status register */
119
120 #define PXA_LCDDMA_CHANS 7
121 #define DMA_FDADR 0x00 /* Frame Descriptor Address register */
122 #define DMA_FSADR 0x04 /* Frame Source Address register */
123 #define DMA_FIDR 0x08 /* Frame ID register */
124 #define DMA_LDCMD 0x0c /* Command register */
125
126 /* LCD Buffer Strength Control register */
127 #define BSCNTR 0x04000054
128
129 /* Bitfield masks */
130 #define LCCR0_ENB (1 << 0)
131 #define LCCR0_CMS (1 << 1)
132 #define LCCR0_SDS (1 << 2)
133 #define LCCR0_LDM (1 << 3)
134 #define LCCR0_SOFM0 (1 << 4)
135 #define LCCR0_IUM (1 << 5)
136 #define LCCR0_EOFM0 (1 << 6)
137 #define LCCR0_PAS (1 << 7)
138 #define LCCR0_DPD (1 << 9)
139 #define LCCR0_DIS (1 << 10)
140 #define LCCR0_QDM (1 << 11)
141 #define LCCR0_PDD (0xff << 12)
142 #define LCCR0_BSM0 (1 << 20)
143 #define LCCR0_OUM (1 << 21)
144 #define LCCR0_LCDT (1 << 22)
145 #define LCCR0_RDSTM (1 << 23)
146 #define LCCR0_CMDIM (1 << 24)
147 #define LCCR0_OUC (1 << 25)
148 #define LCCR0_LDDALT (1 << 26)
149 #define LCCR1_PPL(x) ((x) & 0x3ff)
150 #define LCCR2_LPP(x) ((x) & 0x3ff)
151 #define LCCR3_API (15 << 16)
152 #define LCCR3_BPP(x) ((((x) >> 24) & 7) | (((x) >> 26) & 8))
153 #define LCCR3_PDFOR(x) (((x) >> 30) & 3)
154 #define LCCR4_K1(x) (((x) >> 0) & 7)
155 #define LCCR4_K2(x) (((x) >> 3) & 7)
156 #define LCCR4_K3(x) (((x) >> 6) & 7)
157 #define LCCR4_PALFOR(x) (((x) >> 15) & 3)
158 #define LCCR5_SOFM(ch) (1 << (ch - 1))
159 #define LCCR5_EOFM(ch) (1 << (ch + 7))
160 #define LCCR5_BSM(ch) (1 << (ch + 15))
161 #define LCCR5_IUM(ch) (1 << (ch + 23))
162 #define OVLC1_EN (1 << 31)
163 #define CCR_CEN (1 << 31)
164 #define FBR_BRA (1 << 0)
165 #define FBR_BINT (1 << 1)
166 #define FBR_SRCADDR (0xfffffff << 4)
167 #define LCSR0_LDD (1 << 0)
168 #define LCSR0_SOF0 (1 << 1)
169 #define LCSR0_BER (1 << 2)
170 #define LCSR0_ABC (1 << 3)
171 #define LCSR0_IU0 (1 << 4)
172 #define LCSR0_IU1 (1 << 5)
173 #define LCSR0_OU (1 << 6)
174 #define LCSR0_QD (1 << 7)
175 #define LCSR0_EOF0 (1 << 8)
176 #define LCSR0_BS0 (1 << 9)
177 #define LCSR0_SINT (1 << 10)
178 #define LCSR0_RDST (1 << 11)
179 #define LCSR0_CMDINT (1 << 12)
180 #define LCSR0_BERCH(x) (((x) & 7) << 28)
181 #define LCSR1_SOF(ch) (1 << (ch - 1))
182 #define LCSR1_EOF(ch) (1 << (ch + 7))
183 #define LCSR1_BS(ch) (1 << (ch + 15))
184 #define LCSR1_IU(ch) (1 << (ch + 23))
185 #define LDCMD_LENGTH(x) ((x) & 0x001ffffc)
186 #define LDCMD_EOFINT (1 << 21)
187 #define LDCMD_SOFINT (1 << 22)
188 #define LDCMD_PAL (1 << 26)
189
190 /* Size of a pixel in the QEMU UI output surface, in bytes */
191 #define DEST_PIXEL_WIDTH 4
192
193 /* Line drawing code to handle the various possible guest pixel formats */
194
195 # define SKIP_PIXEL(to) do { to += deststep; } while (0)
196 # define COPY_PIXEL(to, from) \
197 do { \
198 *(uint32_t *) to = from; \
199 SKIP_PIXEL(to); \
200 } while (0)
201
202 #ifdef HOST_WORDS_BIGENDIAN
203 # define SWAP_WORDS 1
204 #endif
205
206 #define FN_2(x) FN(x + 1) FN(x)
207 #define FN_4(x) FN_2(x + 2) FN_2(x)
208
pxa2xx_draw_line2(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)209 static void pxa2xx_draw_line2(void *opaque, uint8_t *dest, const uint8_t *src,
210 int width, int deststep)
211 {
212 uint32_t *palette = opaque;
213 uint32_t data;
214 while (width > 0) {
215 data = *(uint32_t *) src;
216 #define FN(x) COPY_PIXEL(dest, palette[(data >> ((x) * 2)) & 3]);
217 #ifdef SWAP_WORDS
218 FN_4(12)
219 FN_4(8)
220 FN_4(4)
221 FN_4(0)
222 #else
223 FN_4(0)
224 FN_4(4)
225 FN_4(8)
226 FN_4(12)
227 #endif
228 #undef FN
229 width -= 16;
230 src += 4;
231 }
232 }
233
pxa2xx_draw_line4(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)234 static void pxa2xx_draw_line4(void *opaque, uint8_t *dest, const uint8_t *src,
235 int width, int deststep)
236 {
237 uint32_t *palette = opaque;
238 uint32_t data;
239 while (width > 0) {
240 data = *(uint32_t *) src;
241 #define FN(x) COPY_PIXEL(dest, palette[(data >> ((x) * 4)) & 0xf]);
242 #ifdef SWAP_WORDS
243 FN_2(6)
244 FN_2(4)
245 FN_2(2)
246 FN_2(0)
247 #else
248 FN_2(0)
249 FN_2(2)
250 FN_2(4)
251 FN_2(6)
252 #endif
253 #undef FN
254 width -= 8;
255 src += 4;
256 }
257 }
258
pxa2xx_draw_line8(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)259 static void pxa2xx_draw_line8(void *opaque, uint8_t *dest, const uint8_t *src,
260 int width, int deststep)
261 {
262 uint32_t *palette = opaque;
263 uint32_t data;
264 while (width > 0) {
265 data = *(uint32_t *) src;
266 #define FN(x) COPY_PIXEL(dest, palette[(data >> (x)) & 0xff]);
267 #ifdef SWAP_WORDS
268 FN(24)
269 FN(16)
270 FN(8)
271 FN(0)
272 #else
273 FN(0)
274 FN(8)
275 FN(16)
276 FN(24)
277 #endif
278 #undef FN
279 width -= 4;
280 src += 4;
281 }
282 }
283
pxa2xx_draw_line16(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)284 static void pxa2xx_draw_line16(void *opaque, uint8_t *dest, const uint8_t *src,
285 int width, int deststep)
286 {
287 uint32_t data;
288 unsigned int r, g, b;
289 while (width > 0) {
290 data = *(uint32_t *) src;
291 #ifdef SWAP_WORDS
292 data = bswap32(data);
293 #endif
294 b = (data & 0x1f) << 3;
295 data >>= 5;
296 g = (data & 0x3f) << 2;
297 data >>= 6;
298 r = (data & 0x1f) << 3;
299 data >>= 5;
300 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
301 b = (data & 0x1f) << 3;
302 data >>= 5;
303 g = (data & 0x3f) << 2;
304 data >>= 6;
305 r = (data & 0x1f) << 3;
306 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
307 width -= 2;
308 src += 4;
309 }
310 }
311
pxa2xx_draw_line16t(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)312 static void pxa2xx_draw_line16t(void *opaque, uint8_t *dest, const uint8_t *src,
313 int width, int deststep)
314 {
315 uint32_t data;
316 unsigned int r, g, b;
317 while (width > 0) {
318 data = *(uint32_t *) src;
319 #ifdef SWAP_WORDS
320 data = bswap32(data);
321 #endif
322 b = (data & 0x1f) << 3;
323 data >>= 5;
324 g = (data & 0x1f) << 3;
325 data >>= 5;
326 r = (data & 0x1f) << 3;
327 data >>= 5;
328 if (data & 1) {
329 SKIP_PIXEL(dest);
330 } else {
331 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
332 }
333 data >>= 1;
334 b = (data & 0x1f) << 3;
335 data >>= 5;
336 g = (data & 0x1f) << 3;
337 data >>= 5;
338 r = (data & 0x1f) << 3;
339 data >>= 5;
340 if (data & 1) {
341 SKIP_PIXEL(dest);
342 } else {
343 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
344 }
345 width -= 2;
346 src += 4;
347 }
348 }
349
pxa2xx_draw_line18(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)350 static void pxa2xx_draw_line18(void *opaque, uint8_t *dest, const uint8_t *src,
351 int width, int deststep)
352 {
353 uint32_t data;
354 unsigned int r, g, b;
355 while (width > 0) {
356 data = *(uint32_t *) src;
357 #ifdef SWAP_WORDS
358 data = bswap32(data);
359 #endif
360 b = (data & 0x3f) << 2;
361 data >>= 6;
362 g = (data & 0x3f) << 2;
363 data >>= 6;
364 r = (data & 0x3f) << 2;
365 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
366 width -= 1;
367 src += 4;
368 }
369 }
370
371 /* The wicked packed format */
pxa2xx_draw_line18p(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)372 static void pxa2xx_draw_line18p(void *opaque, uint8_t *dest, const uint8_t *src,
373 int width, int deststep)
374 {
375 uint32_t data[3];
376 unsigned int r, g, b;
377 while (width > 0) {
378 data[0] = *(uint32_t *) src;
379 src += 4;
380 data[1] = *(uint32_t *) src;
381 src += 4;
382 data[2] = *(uint32_t *) src;
383 src += 4;
384 #ifdef SWAP_WORDS
385 data[0] = bswap32(data[0]);
386 data[1] = bswap32(data[1]);
387 data[2] = bswap32(data[2]);
388 #endif
389 b = (data[0] & 0x3f) << 2;
390 data[0] >>= 6;
391 g = (data[0] & 0x3f) << 2;
392 data[0] >>= 6;
393 r = (data[0] & 0x3f) << 2;
394 data[0] >>= 12;
395 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
396 b = (data[0] & 0x3f) << 2;
397 data[0] >>= 6;
398 g = ((data[1] & 0xf) << 4) | (data[0] << 2);
399 data[1] >>= 4;
400 r = (data[1] & 0x3f) << 2;
401 data[1] >>= 12;
402 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
403 b = (data[1] & 0x3f) << 2;
404 data[1] >>= 6;
405 g = (data[1] & 0x3f) << 2;
406 data[1] >>= 6;
407 r = ((data[2] & 0x3) << 6) | (data[1] << 2);
408 data[2] >>= 8;
409 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
410 b = (data[2] & 0x3f) << 2;
411 data[2] >>= 6;
412 g = (data[2] & 0x3f) << 2;
413 data[2] >>= 6;
414 r = data[2] << 2;
415 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
416 width -= 4;
417 }
418 }
419
pxa2xx_draw_line19(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)420 static void pxa2xx_draw_line19(void *opaque, uint8_t *dest, const uint8_t *src,
421 int width, int deststep)
422 {
423 uint32_t data;
424 unsigned int r, g, b;
425 while (width > 0) {
426 data = *(uint32_t *) src;
427 #ifdef SWAP_WORDS
428 data = bswap32(data);
429 #endif
430 b = (data & 0x3f) << 2;
431 data >>= 6;
432 g = (data & 0x3f) << 2;
433 data >>= 6;
434 r = (data & 0x3f) << 2;
435 data >>= 6;
436 if (data & 1) {
437 SKIP_PIXEL(dest);
438 } else {
439 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
440 }
441 width -= 1;
442 src += 4;
443 }
444 }
445
446 /* The wicked packed format */
pxa2xx_draw_line19p(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)447 static void pxa2xx_draw_line19p(void *opaque, uint8_t *dest, const uint8_t *src,
448 int width, int deststep)
449 {
450 uint32_t data[3];
451 unsigned int r, g, b;
452 while (width > 0) {
453 data[0] = *(uint32_t *) src;
454 src += 4;
455 data[1] = *(uint32_t *) src;
456 src += 4;
457 data[2] = *(uint32_t *) src;
458 src += 4;
459 # ifdef SWAP_WORDS
460 data[0] = bswap32(data[0]);
461 data[1] = bswap32(data[1]);
462 data[2] = bswap32(data[2]);
463 # endif
464 b = (data[0] & 0x3f) << 2;
465 data[0] >>= 6;
466 g = (data[0] & 0x3f) << 2;
467 data[0] >>= 6;
468 r = (data[0] & 0x3f) << 2;
469 data[0] >>= 6;
470 if (data[0] & 1) {
471 SKIP_PIXEL(dest);
472 } else {
473 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
474 }
475 data[0] >>= 6;
476 b = (data[0] & 0x3f) << 2;
477 data[0] >>= 6;
478 g = ((data[1] & 0xf) << 4) | (data[0] << 2);
479 data[1] >>= 4;
480 r = (data[1] & 0x3f) << 2;
481 data[1] >>= 6;
482 if (data[1] & 1) {
483 SKIP_PIXEL(dest);
484 } else {
485 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
486 }
487 data[1] >>= 6;
488 b = (data[1] & 0x3f) << 2;
489 data[1] >>= 6;
490 g = (data[1] & 0x3f) << 2;
491 data[1] >>= 6;
492 r = ((data[2] & 0x3) << 6) | (data[1] << 2);
493 data[2] >>= 2;
494 if (data[2] & 1) {
495 SKIP_PIXEL(dest);
496 } else {
497 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
498 }
499 data[2] >>= 6;
500 b = (data[2] & 0x3f) << 2;
501 data[2] >>= 6;
502 g = (data[2] & 0x3f) << 2;
503 data[2] >>= 6;
504 r = data[2] << 2;
505 data[2] >>= 6;
506 if (data[2] & 1) {
507 SKIP_PIXEL(dest);
508 } else {
509 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
510 }
511 width -= 4;
512 }
513 }
514
pxa2xx_draw_line24(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)515 static void pxa2xx_draw_line24(void *opaque, uint8_t *dest, const uint8_t *src,
516 int width, int deststep)
517 {
518 uint32_t data;
519 unsigned int r, g, b;
520 while (width > 0) {
521 data = *(uint32_t *) src;
522 #ifdef SWAP_WORDS
523 data = bswap32(data);
524 #endif
525 b = data & 0xff;
526 data >>= 8;
527 g = data & 0xff;
528 data >>= 8;
529 r = data & 0xff;
530 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
531 width -= 1;
532 src += 4;
533 }
534 }
535
pxa2xx_draw_line24t(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)536 static void pxa2xx_draw_line24t(void *opaque, uint8_t *dest, const uint8_t *src,
537 int width, int deststep)
538 {
539 uint32_t data;
540 unsigned int r, g, b;
541 while (width > 0) {
542 data = *(uint32_t *) src;
543 #ifdef SWAP_WORDS
544 data = bswap32(data);
545 #endif
546 b = (data & 0x7f) << 1;
547 data >>= 7;
548 g = data & 0xff;
549 data >>= 8;
550 r = data & 0xff;
551 data >>= 8;
552 if (data & 1) {
553 SKIP_PIXEL(dest);
554 } else {
555 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
556 }
557 width -= 1;
558 src += 4;
559 }
560 }
561
pxa2xx_draw_line25(void * opaque,uint8_t * dest,const uint8_t * src,int width,int deststep)562 static void pxa2xx_draw_line25(void *opaque, uint8_t *dest, const uint8_t *src,
563 int width, int deststep)
564 {
565 uint32_t data;
566 unsigned int r, g, b;
567 while (width > 0) {
568 data = *(uint32_t *) src;
569 #ifdef SWAP_WORDS
570 data = bswap32(data);
571 #endif
572 b = data & 0xff;
573 data >>= 8;
574 g = data & 0xff;
575 data >>= 8;
576 r = data & 0xff;
577 data >>= 8;
578 if (data & 1) {
579 SKIP_PIXEL(dest);
580 } else {
581 COPY_PIXEL(dest, rgb_to_pixel32(r, g, b));
582 }
583 width -= 1;
584 src += 4;
585 }
586 }
587
588 /* Overlay planes disabled, no transparency */
589 static drawfn pxa2xx_draw_fn_32[16] = {
590 [0 ... 0xf] = NULL,
591 [pxa_lcdc_2bpp] = pxa2xx_draw_line2,
592 [pxa_lcdc_4bpp] = pxa2xx_draw_line4,
593 [pxa_lcdc_8bpp] = pxa2xx_draw_line8,
594 [pxa_lcdc_16bpp] = pxa2xx_draw_line16,
595 [pxa_lcdc_18bpp] = pxa2xx_draw_line18,
596 [pxa_lcdc_18pbpp] = pxa2xx_draw_line18p,
597 [pxa_lcdc_24bpp] = pxa2xx_draw_line24,
598 };
599
600 /* Overlay planes enabled, transparency used */
601 static drawfn pxa2xx_draw_fn_32t[16] = {
602 [0 ... 0xf] = NULL,
603 [pxa_lcdc_4bpp] = pxa2xx_draw_line4,
604 [pxa_lcdc_8bpp] = pxa2xx_draw_line8,
605 [pxa_lcdc_16bpp] = pxa2xx_draw_line16t,
606 [pxa_lcdc_19bpp] = pxa2xx_draw_line19,
607 [pxa_lcdc_19pbpp] = pxa2xx_draw_line19p,
608 [pxa_lcdc_24bpp] = pxa2xx_draw_line24t,
609 [pxa_lcdc_25bpp] = pxa2xx_draw_line25,
610 };
611
612 #undef COPY_PIXEL
613 #undef SKIP_PIXEL
614
615 #ifdef SWAP_WORDS
616 # undef SWAP_WORDS
617 #endif
618
619 /* Route internal interrupt lines to the global IC */
pxa2xx_lcdc_int_update(PXA2xxLCDState * s)620 static void pxa2xx_lcdc_int_update(PXA2xxLCDState *s)
621 {
622 int level = 0;
623 level |= (s->status[0] & LCSR0_LDD) && !(s->control[0] & LCCR0_LDM);
624 level |= (s->status[0] & LCSR0_SOF0) && !(s->control[0] & LCCR0_SOFM0);
625 level |= (s->status[0] & LCSR0_IU0) && !(s->control[0] & LCCR0_IUM);
626 level |= (s->status[0] & LCSR0_IU1) && !(s->control[5] & LCCR5_IUM(1));
627 level |= (s->status[0] & LCSR0_OU) && !(s->control[0] & LCCR0_OUM);
628 level |= (s->status[0] & LCSR0_QD) && !(s->control[0] & LCCR0_QDM);
629 level |= (s->status[0] & LCSR0_EOF0) && !(s->control[0] & LCCR0_EOFM0);
630 level |= (s->status[0] & LCSR0_BS0) && !(s->control[0] & LCCR0_BSM0);
631 level |= (s->status[0] & LCSR0_RDST) && !(s->control[0] & LCCR0_RDSTM);
632 level |= (s->status[0] & LCSR0_CMDINT) && !(s->control[0] & LCCR0_CMDIM);
633 level |= (s->status[1] & ~s->control[5]);
634
635 qemu_set_irq(s->irq, !!level);
636 s->irqlevel = level;
637 }
638
639 /* Set Branch Status interrupt high and poke associated registers */
pxa2xx_dma_bs_set(PXA2xxLCDState * s,int ch)640 static inline void pxa2xx_dma_bs_set(PXA2xxLCDState *s, int ch)
641 {
642 int unmasked;
643 if (ch == 0) {
644 s->status[0] |= LCSR0_BS0;
645 unmasked = !(s->control[0] & LCCR0_BSM0);
646 } else {
647 s->status[1] |= LCSR1_BS(ch);
648 unmasked = !(s->control[5] & LCCR5_BSM(ch));
649 }
650
651 if (unmasked) {
652 if (s->irqlevel)
653 s->status[0] |= LCSR0_SINT;
654 else
655 s->liidr = s->dma_ch[ch].id;
656 }
657 }
658
659 /* Set Start Of Frame Status interrupt high and poke associated registers */
pxa2xx_dma_sof_set(PXA2xxLCDState * s,int ch)660 static inline void pxa2xx_dma_sof_set(PXA2xxLCDState *s, int ch)
661 {
662 int unmasked;
663 if (!(s->dma_ch[ch].command & LDCMD_SOFINT))
664 return;
665
666 if (ch == 0) {
667 s->status[0] |= LCSR0_SOF0;
668 unmasked = !(s->control[0] & LCCR0_SOFM0);
669 } else {
670 s->status[1] |= LCSR1_SOF(ch);
671 unmasked = !(s->control[5] & LCCR5_SOFM(ch));
672 }
673
674 if (unmasked) {
675 if (s->irqlevel)
676 s->status[0] |= LCSR0_SINT;
677 else
678 s->liidr = s->dma_ch[ch].id;
679 }
680 }
681
682 /* Set End Of Frame Status interrupt high and poke associated registers */
pxa2xx_dma_eof_set(PXA2xxLCDState * s,int ch)683 static inline void pxa2xx_dma_eof_set(PXA2xxLCDState *s, int ch)
684 {
685 int unmasked;
686 if (!(s->dma_ch[ch].command & LDCMD_EOFINT))
687 return;
688
689 if (ch == 0) {
690 s->status[0] |= LCSR0_EOF0;
691 unmasked = !(s->control[0] & LCCR0_EOFM0);
692 } else {
693 s->status[1] |= LCSR1_EOF(ch);
694 unmasked = !(s->control[5] & LCCR5_EOFM(ch));
695 }
696
697 if (unmasked) {
698 if (s->irqlevel)
699 s->status[0] |= LCSR0_SINT;
700 else
701 s->liidr = s->dma_ch[ch].id;
702 }
703 }
704
705 /* Set Bus Error Status interrupt high and poke associated registers */
pxa2xx_dma_ber_set(PXA2xxLCDState * s,int ch)706 static inline void pxa2xx_dma_ber_set(PXA2xxLCDState *s, int ch)
707 {
708 s->status[0] |= LCSR0_BERCH(ch) | LCSR0_BER;
709 if (s->irqlevel)
710 s->status[0] |= LCSR0_SINT;
711 else
712 s->liidr = s->dma_ch[ch].id;
713 }
714
715 /* Load new Frame Descriptors from DMA */
pxa2xx_descriptor_load(PXA2xxLCDState * s)716 static void pxa2xx_descriptor_load(PXA2xxLCDState *s)
717 {
718 PXAFrameDescriptor desc;
719 hwaddr descptr;
720 int i;
721
722 for (i = 0; i < PXA_LCDDMA_CHANS; i ++) {
723 s->dma_ch[i].source = 0;
724
725 if (!s->dma_ch[i].up)
726 continue;
727
728 if (s->dma_ch[i].branch & FBR_BRA) {
729 descptr = s->dma_ch[i].branch & FBR_SRCADDR;
730 if (s->dma_ch[i].branch & FBR_BINT)
731 pxa2xx_dma_bs_set(s, i);
732 s->dma_ch[i].branch &= ~FBR_BRA;
733 } else
734 descptr = s->dma_ch[i].descriptor;
735
736 if (!((descptr >= PXA2XX_SDRAM_BASE && descptr +
737 sizeof(desc) <= PXA2XX_SDRAM_BASE + current_machine->ram_size) ||
738 (descptr >= PXA2XX_INTERNAL_BASE && descptr + sizeof(desc) <=
739 PXA2XX_INTERNAL_BASE + PXA2XX_INTERNAL_SIZE))) {
740 continue;
741 }
742
743 cpu_physical_memory_read(descptr, &desc, sizeof(desc));
744 s->dma_ch[i].descriptor = le32_to_cpu(desc.fdaddr);
745 s->dma_ch[i].source = le32_to_cpu(desc.fsaddr);
746 s->dma_ch[i].id = le32_to_cpu(desc.fidr);
747 s->dma_ch[i].command = le32_to_cpu(desc.ldcmd);
748 }
749 }
750
pxa2xx_lcdc_read(void * opaque,hwaddr offset,unsigned size)751 static uint64_t pxa2xx_lcdc_read(void *opaque, hwaddr offset,
752 unsigned size)
753 {
754 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
755 int ch;
756
757 switch (offset) {
758 case LCCR0:
759 return s->control[0];
760 case LCCR1:
761 return s->control[1];
762 case LCCR2:
763 return s->control[2];
764 case LCCR3:
765 return s->control[3];
766 case LCCR4:
767 return s->control[4];
768 case LCCR5:
769 return s->control[5];
770
771 case OVL1C1:
772 return s->ovl1c[0];
773 case OVL1C2:
774 return s->ovl1c[1];
775 case OVL2C1:
776 return s->ovl2c[0];
777 case OVL2C2:
778 return s->ovl2c[1];
779
780 case CCR:
781 return s->ccr;
782
783 case CMDCR:
784 return s->cmdcr;
785
786 case TRGBR:
787 return s->trgbr;
788 case TCR:
789 return s->tcr;
790
791 case 0x200 ... 0x1000: /* DMA per-channel registers */
792 ch = (offset - 0x200) >> 4;
793 if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS))
794 goto fail;
795
796 switch (offset & 0xf) {
797 case DMA_FDADR:
798 return s->dma_ch[ch].descriptor;
799 case DMA_FSADR:
800 return s->dma_ch[ch].source;
801 case DMA_FIDR:
802 return s->dma_ch[ch].id;
803 case DMA_LDCMD:
804 return s->dma_ch[ch].command;
805 default:
806 goto fail;
807 }
808
809 case FBR0:
810 return s->dma_ch[0].branch;
811 case FBR1:
812 return s->dma_ch[1].branch;
813 case FBR2:
814 return s->dma_ch[2].branch;
815 case FBR3:
816 return s->dma_ch[3].branch;
817 case FBR4:
818 return s->dma_ch[4].branch;
819 case FBR5:
820 return s->dma_ch[5].branch;
821 case FBR6:
822 return s->dma_ch[6].branch;
823
824 case BSCNTR:
825 return s->bscntr;
826
827 case PRSR:
828 return 0;
829
830 case LCSR0:
831 return s->status[0];
832 case LCSR1:
833 return s->status[1];
834 case LIIDR:
835 return s->liidr;
836
837 default:
838 fail:
839 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIX "\n",
840 __func__, offset);
841 }
842
843 return 0;
844 }
845
pxa2xx_lcdc_write(void * opaque,hwaddr offset,uint64_t value,unsigned size)846 static void pxa2xx_lcdc_write(void *opaque, hwaddr offset,
847 uint64_t value, unsigned size)
848 {
849 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
850 int ch;
851
852 switch (offset) {
853 case LCCR0:
854 /* ACK Quick Disable done */
855 if ((s->control[0] & LCCR0_ENB) && !(value & LCCR0_ENB))
856 s->status[0] |= LCSR0_QD;
857
858 if (!(s->control[0] & LCCR0_LCDT) && (value & LCCR0_LCDT)) {
859 qemu_log_mask(LOG_UNIMP,
860 "%s: internal frame buffer unsupported\n", __func__);
861 }
862 if ((s->control[3] & LCCR3_API) &&
863 (value & LCCR0_ENB) && !(value & LCCR0_LCDT))
864 s->status[0] |= LCSR0_ABC;
865
866 s->control[0] = value & 0x07ffffff;
867 pxa2xx_lcdc_int_update(s);
868
869 s->dma_ch[0].up = !!(value & LCCR0_ENB);
870 s->dma_ch[1].up = (s->ovl1c[0] & OVLC1_EN) || (value & LCCR0_SDS);
871 break;
872
873 case LCCR1:
874 s->control[1] = value;
875 break;
876
877 case LCCR2:
878 s->control[2] = value;
879 break;
880
881 case LCCR3:
882 s->control[3] = value & 0xefffffff;
883 s->bpp = LCCR3_BPP(value);
884 break;
885
886 case LCCR4:
887 s->control[4] = value & 0x83ff81ff;
888 break;
889
890 case LCCR5:
891 s->control[5] = value & 0x3f3f3f3f;
892 break;
893
894 case OVL1C1:
895 if (!(s->ovl1c[0] & OVLC1_EN) && (value & OVLC1_EN)) {
896 qemu_log_mask(LOG_UNIMP, "%s: Overlay 1 not supported\n", __func__);
897 }
898 s->ovl1c[0] = value & 0x80ffffff;
899 s->dma_ch[1].up = (value & OVLC1_EN) || (s->control[0] & LCCR0_SDS);
900 break;
901
902 case OVL1C2:
903 s->ovl1c[1] = value & 0x000fffff;
904 break;
905
906 case OVL2C1:
907 if (!(s->ovl2c[0] & OVLC1_EN) && (value & OVLC1_EN)) {
908 qemu_log_mask(LOG_UNIMP, "%s: Overlay 2 not supported\n", __func__);
909 }
910 s->ovl2c[0] = value & 0x80ffffff;
911 s->dma_ch[2].up = !!(value & OVLC1_EN);
912 s->dma_ch[3].up = !!(value & OVLC1_EN);
913 s->dma_ch[4].up = !!(value & OVLC1_EN);
914 break;
915
916 case OVL2C2:
917 s->ovl2c[1] = value & 0x007fffff;
918 break;
919
920 case CCR:
921 if (!(s->ccr & CCR_CEN) && (value & CCR_CEN)) {
922 qemu_log_mask(LOG_UNIMP,
923 "%s: Hardware cursor unimplemented\n", __func__);
924 }
925 s->ccr = value & 0x81ffffe7;
926 s->dma_ch[5].up = !!(value & CCR_CEN);
927 break;
928
929 case CMDCR:
930 s->cmdcr = value & 0xff;
931 break;
932
933 case TRGBR:
934 s->trgbr = value & 0x00ffffff;
935 break;
936
937 case TCR:
938 s->tcr = value & 0x7fff;
939 break;
940
941 case 0x200 ... 0x1000: /* DMA per-channel registers */
942 ch = (offset - 0x200) >> 4;
943 if (!(ch >= 0 && ch < PXA_LCDDMA_CHANS))
944 goto fail;
945
946 switch (offset & 0xf) {
947 case DMA_FDADR:
948 s->dma_ch[ch].descriptor = value & 0xfffffff0;
949 break;
950
951 default:
952 goto fail;
953 }
954 break;
955
956 case FBR0:
957 s->dma_ch[0].branch = value & 0xfffffff3;
958 break;
959 case FBR1:
960 s->dma_ch[1].branch = value & 0xfffffff3;
961 break;
962 case FBR2:
963 s->dma_ch[2].branch = value & 0xfffffff3;
964 break;
965 case FBR3:
966 s->dma_ch[3].branch = value & 0xfffffff3;
967 break;
968 case FBR4:
969 s->dma_ch[4].branch = value & 0xfffffff3;
970 break;
971 case FBR5:
972 s->dma_ch[5].branch = value & 0xfffffff3;
973 break;
974 case FBR6:
975 s->dma_ch[6].branch = value & 0xfffffff3;
976 break;
977
978 case BSCNTR:
979 s->bscntr = value & 0xf;
980 break;
981
982 case PRSR:
983 break;
984
985 case LCSR0:
986 s->status[0] &= ~(value & 0xfff);
987 if (value & LCSR0_BER)
988 s->status[0] &= ~LCSR0_BERCH(7);
989 break;
990
991 case LCSR1:
992 s->status[1] &= ~(value & 0x3e3f3f);
993 break;
994
995 default:
996 fail:
997 qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIX "\n",
998 __func__, offset);
999 }
1000 }
1001
1002 static const MemoryRegionOps pxa2xx_lcdc_ops = {
1003 .read = pxa2xx_lcdc_read,
1004 .write = pxa2xx_lcdc_write,
1005 .endianness = DEVICE_NATIVE_ENDIAN,
1006 };
1007
1008 /* Load new palette for a given DMA channel, convert to internal format */
pxa2xx_palette_parse(PXA2xxLCDState * s,int ch,int bpp)1009 static void pxa2xx_palette_parse(PXA2xxLCDState *s, int ch, int bpp)
1010 {
1011 DisplaySurface *surface = qemu_console_surface(s->con);
1012 int i, n, format, r, g, b, alpha;
1013 uint32_t *dest;
1014 uint8_t *src;
1015 s->pal_for = LCCR4_PALFOR(s->control[4]);
1016 format = s->pal_for;
1017
1018 switch (bpp) {
1019 case pxa_lcdc_2bpp:
1020 n = 4;
1021 break;
1022 case pxa_lcdc_4bpp:
1023 n = 16;
1024 break;
1025 case pxa_lcdc_8bpp:
1026 n = 256;
1027 break;
1028 default:
1029 return;
1030 }
1031
1032 src = (uint8_t *) s->dma_ch[ch].pbuffer;
1033 dest = (uint32_t *) s->dma_ch[ch].palette;
1034 alpha = r = g = b = 0;
1035
1036 for (i = 0; i < n; i ++) {
1037 switch (format) {
1038 case 0: /* 16 bpp, no transparency */
1039 alpha = 0;
1040 if (s->control[0] & LCCR0_CMS) {
1041 r = g = b = *(uint16_t *) src & 0xff;
1042 }
1043 else {
1044 r = (*(uint16_t *) src & 0xf800) >> 8;
1045 g = (*(uint16_t *) src & 0x07e0) >> 3;
1046 b = (*(uint16_t *) src & 0x001f) << 3;
1047 }
1048 src += 2;
1049 break;
1050 case 1: /* 16 bpp plus transparency */
1051 alpha = *(uint32_t *) src & (1 << 24);
1052 if (s->control[0] & LCCR0_CMS)
1053 r = g = b = *(uint32_t *) src & 0xff;
1054 else {
1055 r = (*(uint32_t *) src & 0xf80000) >> 16;
1056 g = (*(uint32_t *) src & 0x00fc00) >> 8;
1057 b = (*(uint32_t *) src & 0x0000f8);
1058 }
1059 src += 4;
1060 break;
1061 case 2: /* 18 bpp plus transparency */
1062 alpha = *(uint32_t *) src & (1 << 24);
1063 if (s->control[0] & LCCR0_CMS)
1064 r = g = b = *(uint32_t *) src & 0xff;
1065 else {
1066 r = (*(uint32_t *) src & 0xfc0000) >> 16;
1067 g = (*(uint32_t *) src & 0x00fc00) >> 8;
1068 b = (*(uint32_t *) src & 0x0000fc);
1069 }
1070 src += 4;
1071 break;
1072 case 3: /* 24 bpp plus transparency */
1073 alpha = *(uint32_t *) src & (1 << 24);
1074 if (s->control[0] & LCCR0_CMS)
1075 r = g = b = *(uint32_t *) src & 0xff;
1076 else {
1077 r = (*(uint32_t *) src & 0xff0000) >> 16;
1078 g = (*(uint32_t *) src & 0x00ff00) >> 8;
1079 b = (*(uint32_t *) src & 0x0000ff);
1080 }
1081 src += 4;
1082 break;
1083 }
1084 switch (surface_bits_per_pixel(surface)) {
1085 case 8:
1086 *dest = rgb_to_pixel8(r, g, b) | alpha;
1087 break;
1088 case 15:
1089 *dest = rgb_to_pixel15(r, g, b) | alpha;
1090 break;
1091 case 16:
1092 *dest = rgb_to_pixel16(r, g, b) | alpha;
1093 break;
1094 case 24:
1095 *dest = rgb_to_pixel24(r, g, b) | alpha;
1096 break;
1097 case 32:
1098 *dest = rgb_to_pixel32(r, g, b) | alpha;
1099 break;
1100 }
1101 dest ++;
1102 }
1103 }
1104
pxa2xx_drawfn(PXA2xxLCDState * s)1105 static inline drawfn pxa2xx_drawfn(PXA2xxLCDState *s)
1106 {
1107 if (s->transp) {
1108 return pxa2xx_draw_fn_32t[s->bpp];
1109 } else {
1110 return pxa2xx_draw_fn_32[s->bpp];
1111 }
1112 }
1113
pxa2xx_lcdc_dma0_redraw_rot0(PXA2xxLCDState * s,hwaddr addr,int * miny,int * maxy)1114 static void pxa2xx_lcdc_dma0_redraw_rot0(PXA2xxLCDState *s,
1115 hwaddr addr, int *miny, int *maxy)
1116 {
1117 DisplaySurface *surface = qemu_console_surface(s->con);
1118 int src_width, dest_width;
1119 drawfn fn = pxa2xx_drawfn(s);
1120 if (!fn)
1121 return;
1122
1123 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
1124 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
1125 src_width *= 3;
1126 else if (s->bpp > pxa_lcdc_16bpp)
1127 src_width *= 4;
1128 else if (s->bpp > pxa_lcdc_8bpp)
1129 src_width *= 2;
1130
1131 dest_width = s->xres * DEST_PIXEL_WIDTH;
1132 *miny = 0;
1133 if (s->invalidated) {
1134 framebuffer_update_memory_section(&s->fbsection, s->sysmem,
1135 addr, s->yres, src_width);
1136 }
1137 framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
1138 src_width, dest_width, DEST_PIXEL_WIDTH,
1139 s->invalidated,
1140 fn, s->dma_ch[0].palette, miny, maxy);
1141 }
1142
pxa2xx_lcdc_dma0_redraw_rot90(PXA2xxLCDState * s,hwaddr addr,int * miny,int * maxy)1143 static void pxa2xx_lcdc_dma0_redraw_rot90(PXA2xxLCDState *s,
1144 hwaddr addr, int *miny, int *maxy)
1145 {
1146 DisplaySurface *surface = qemu_console_surface(s->con);
1147 int src_width, dest_width;
1148 drawfn fn = pxa2xx_drawfn(s);
1149 if (!fn)
1150 return;
1151
1152 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
1153 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp)
1154 src_width *= 3;
1155 else if (s->bpp > pxa_lcdc_16bpp)
1156 src_width *= 4;
1157 else if (s->bpp > pxa_lcdc_8bpp)
1158 src_width *= 2;
1159
1160 dest_width = s->yres * DEST_PIXEL_WIDTH;
1161 *miny = 0;
1162 if (s->invalidated) {
1163 framebuffer_update_memory_section(&s->fbsection, s->sysmem,
1164 addr, s->yres, src_width);
1165 }
1166 framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
1167 src_width, DEST_PIXEL_WIDTH, -dest_width,
1168 s->invalidated,
1169 fn, s->dma_ch[0].palette,
1170 miny, maxy);
1171 }
1172
pxa2xx_lcdc_dma0_redraw_rot180(PXA2xxLCDState * s,hwaddr addr,int * miny,int * maxy)1173 static void pxa2xx_lcdc_dma0_redraw_rot180(PXA2xxLCDState *s,
1174 hwaddr addr, int *miny, int *maxy)
1175 {
1176 DisplaySurface *surface = qemu_console_surface(s->con);
1177 int src_width, dest_width;
1178 drawfn fn = pxa2xx_drawfn(s);
1179 if (!fn) {
1180 return;
1181 }
1182
1183 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
1184 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) {
1185 src_width *= 3;
1186 } else if (s->bpp > pxa_lcdc_16bpp) {
1187 src_width *= 4;
1188 } else if (s->bpp > pxa_lcdc_8bpp) {
1189 src_width *= 2;
1190 }
1191
1192 dest_width = s->xres * DEST_PIXEL_WIDTH;
1193 *miny = 0;
1194 if (s->invalidated) {
1195 framebuffer_update_memory_section(&s->fbsection, s->sysmem,
1196 addr, s->yres, src_width);
1197 }
1198 framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
1199 src_width, -dest_width, -DEST_PIXEL_WIDTH,
1200 s->invalidated,
1201 fn, s->dma_ch[0].palette, miny, maxy);
1202 }
1203
pxa2xx_lcdc_dma0_redraw_rot270(PXA2xxLCDState * s,hwaddr addr,int * miny,int * maxy)1204 static void pxa2xx_lcdc_dma0_redraw_rot270(PXA2xxLCDState *s,
1205 hwaddr addr, int *miny, int *maxy)
1206 {
1207 DisplaySurface *surface = qemu_console_surface(s->con);
1208 int src_width, dest_width;
1209 drawfn fn = pxa2xx_drawfn(s);
1210 if (!fn) {
1211 return;
1212 }
1213
1214 src_width = (s->xres + 3) & ~3; /* Pad to a 4 pixels multiple */
1215 if (s->bpp == pxa_lcdc_19pbpp || s->bpp == pxa_lcdc_18pbpp) {
1216 src_width *= 3;
1217 } else if (s->bpp > pxa_lcdc_16bpp) {
1218 src_width *= 4;
1219 } else if (s->bpp > pxa_lcdc_8bpp) {
1220 src_width *= 2;
1221 }
1222
1223 dest_width = s->yres * DEST_PIXEL_WIDTH;
1224 *miny = 0;
1225 if (s->invalidated) {
1226 framebuffer_update_memory_section(&s->fbsection, s->sysmem,
1227 addr, s->yres, src_width);
1228 }
1229 framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
1230 src_width, -DEST_PIXEL_WIDTH, dest_width,
1231 s->invalidated,
1232 fn, s->dma_ch[0].palette,
1233 miny, maxy);
1234 }
1235
pxa2xx_lcdc_resize(PXA2xxLCDState * s)1236 static void pxa2xx_lcdc_resize(PXA2xxLCDState *s)
1237 {
1238 int width, height;
1239 if (!(s->control[0] & LCCR0_ENB))
1240 return;
1241
1242 width = LCCR1_PPL(s->control[1]) + 1;
1243 height = LCCR2_LPP(s->control[2]) + 1;
1244
1245 if (width != s->xres || height != s->yres) {
1246 if (s->orientation == 90 || s->orientation == 270) {
1247 qemu_console_resize(s->con, height, width);
1248 } else {
1249 qemu_console_resize(s->con, width, height);
1250 }
1251 s->invalidated = 1;
1252 s->xres = width;
1253 s->yres = height;
1254 }
1255 }
1256
pxa2xx_update_display(void * opaque)1257 static void pxa2xx_update_display(void *opaque)
1258 {
1259 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
1260 hwaddr fbptr;
1261 int miny, maxy;
1262 int ch;
1263 if (!(s->control[0] & LCCR0_ENB))
1264 return;
1265
1266 pxa2xx_descriptor_load(s);
1267
1268 pxa2xx_lcdc_resize(s);
1269 miny = s->yres;
1270 maxy = 0;
1271 s->transp = s->dma_ch[2].up || s->dma_ch[3].up;
1272 /* Note: With overlay planes the order depends on LCCR0 bit 25. */
1273 for (ch = 0; ch < PXA_LCDDMA_CHANS; ch ++)
1274 if (s->dma_ch[ch].up) {
1275 if (!s->dma_ch[ch].source) {
1276 pxa2xx_dma_ber_set(s, ch);
1277 continue;
1278 }
1279 fbptr = s->dma_ch[ch].source;
1280 if (!((fbptr >= PXA2XX_SDRAM_BASE &&
1281 fbptr <= PXA2XX_SDRAM_BASE + current_machine->ram_size) ||
1282 (fbptr >= PXA2XX_INTERNAL_BASE &&
1283 fbptr <= PXA2XX_INTERNAL_BASE + PXA2XX_INTERNAL_SIZE))) {
1284 pxa2xx_dma_ber_set(s, ch);
1285 continue;
1286 }
1287
1288 if (s->dma_ch[ch].command & LDCMD_PAL) {
1289 cpu_physical_memory_read(fbptr, s->dma_ch[ch].pbuffer,
1290 MAX(LDCMD_LENGTH(s->dma_ch[ch].command),
1291 sizeof(s->dma_ch[ch].pbuffer)));
1292 pxa2xx_palette_parse(s, ch, s->bpp);
1293 } else {
1294 /* Do we need to reparse palette */
1295 if (LCCR4_PALFOR(s->control[4]) != s->pal_for)
1296 pxa2xx_palette_parse(s, ch, s->bpp);
1297
1298 /* ACK frame start */
1299 pxa2xx_dma_sof_set(s, ch);
1300
1301 s->dma_ch[ch].redraw(s, fbptr, &miny, &maxy);
1302 s->invalidated = 0;
1303
1304 /* ACK frame completed */
1305 pxa2xx_dma_eof_set(s, ch);
1306 }
1307 }
1308
1309 if (s->control[0] & LCCR0_DIS) {
1310 /* ACK last frame completed */
1311 s->control[0] &= ~LCCR0_ENB;
1312 s->status[0] |= LCSR0_LDD;
1313 }
1314
1315 if (miny >= 0) {
1316 switch (s->orientation) {
1317 case 0:
1318 dpy_gfx_update(s->con, 0, miny, s->xres, maxy - miny + 1);
1319 break;
1320 case 90:
1321 dpy_gfx_update(s->con, miny, 0, maxy - miny + 1, s->xres);
1322 break;
1323 case 180:
1324 maxy = s->yres - maxy - 1;
1325 miny = s->yres - miny - 1;
1326 dpy_gfx_update(s->con, 0, maxy, s->xres, miny - maxy + 1);
1327 break;
1328 case 270:
1329 maxy = s->yres - maxy - 1;
1330 miny = s->yres - miny - 1;
1331 dpy_gfx_update(s->con, maxy, 0, miny - maxy + 1, s->xres);
1332 break;
1333 }
1334 }
1335 pxa2xx_lcdc_int_update(s);
1336
1337 qemu_irq_raise(s->vsync_cb);
1338 }
1339
pxa2xx_invalidate_display(void * opaque)1340 static void pxa2xx_invalidate_display(void *opaque)
1341 {
1342 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
1343 s->invalidated = 1;
1344 }
1345
pxa2xx_lcdc_orientation(void * opaque,int angle)1346 static void pxa2xx_lcdc_orientation(void *opaque, int angle)
1347 {
1348 PXA2xxLCDState *s = (PXA2xxLCDState *) opaque;
1349
1350 switch (angle) {
1351 case 0:
1352 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot0;
1353 break;
1354 case 90:
1355 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot90;
1356 break;
1357 case 180:
1358 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot180;
1359 break;
1360 case 270:
1361 s->dma_ch[0].redraw = pxa2xx_lcdc_dma0_redraw_rot270;
1362 break;
1363 }
1364
1365 s->orientation = angle;
1366 s->xres = s->yres = -1;
1367 pxa2xx_lcdc_resize(s);
1368 }
1369
1370 static const VMStateDescription vmstate_dma_channel = {
1371 .name = "dma_channel",
1372 .version_id = 0,
1373 .minimum_version_id = 0,
1374 .fields = (VMStateField[]) {
1375 VMSTATE_UINT32(branch, struct DMAChannel),
1376 VMSTATE_UINT8(up, struct DMAChannel),
1377 VMSTATE_BUFFER(pbuffer, struct DMAChannel),
1378 VMSTATE_UINT32(descriptor, struct DMAChannel),
1379 VMSTATE_UINT32(source, struct DMAChannel),
1380 VMSTATE_UINT32(id, struct DMAChannel),
1381 VMSTATE_UINT32(command, struct DMAChannel),
1382 VMSTATE_END_OF_LIST()
1383 }
1384 };
1385
pxa2xx_lcdc_post_load(void * opaque,int version_id)1386 static int pxa2xx_lcdc_post_load(void *opaque, int version_id)
1387 {
1388 PXA2xxLCDState *s = opaque;
1389
1390 s->bpp = LCCR3_BPP(s->control[3]);
1391 s->xres = s->yres = s->pal_for = -1;
1392
1393 return 0;
1394 }
1395
1396 static const VMStateDescription vmstate_pxa2xx_lcdc = {
1397 .name = "pxa2xx_lcdc",
1398 .version_id = 0,
1399 .minimum_version_id = 0,
1400 .post_load = pxa2xx_lcdc_post_load,
1401 .fields = (VMStateField[]) {
1402 VMSTATE_INT32(irqlevel, PXA2xxLCDState),
1403 VMSTATE_INT32(transp, PXA2xxLCDState),
1404 VMSTATE_UINT32_ARRAY(control, PXA2xxLCDState, 6),
1405 VMSTATE_UINT32_ARRAY(status, PXA2xxLCDState, 2),
1406 VMSTATE_UINT32_ARRAY(ovl1c, PXA2xxLCDState, 2),
1407 VMSTATE_UINT32_ARRAY(ovl2c, PXA2xxLCDState, 2),
1408 VMSTATE_UINT32(ccr, PXA2xxLCDState),
1409 VMSTATE_UINT32(cmdcr, PXA2xxLCDState),
1410 VMSTATE_UINT32(trgbr, PXA2xxLCDState),
1411 VMSTATE_UINT32(tcr, PXA2xxLCDState),
1412 VMSTATE_UINT32(liidr, PXA2xxLCDState),
1413 VMSTATE_UINT8(bscntr, PXA2xxLCDState),
1414 VMSTATE_STRUCT_ARRAY(dma_ch, PXA2xxLCDState, 7, 0,
1415 vmstate_dma_channel, struct DMAChannel),
1416 VMSTATE_END_OF_LIST()
1417 }
1418 };
1419
1420 static const GraphicHwOps pxa2xx_ops = {
1421 .invalidate = pxa2xx_invalidate_display,
1422 .gfx_update = pxa2xx_update_display,
1423 };
1424
pxa2xx_lcdc_init(MemoryRegion * sysmem,hwaddr base,qemu_irq irq)1425 PXA2xxLCDState *pxa2xx_lcdc_init(MemoryRegion *sysmem,
1426 hwaddr base, qemu_irq irq)
1427 {
1428 PXA2xxLCDState *s;
1429
1430 s = (PXA2xxLCDState *) g_malloc0(sizeof(PXA2xxLCDState));
1431 s->invalidated = 1;
1432 s->irq = irq;
1433 s->sysmem = sysmem;
1434
1435 pxa2xx_lcdc_orientation(s, graphic_rotate);
1436
1437 memory_region_init_io(&s->iomem, NULL, &pxa2xx_lcdc_ops, s,
1438 "pxa2xx-lcd-controller", 0x00100000);
1439 memory_region_add_subregion(sysmem, base, &s->iomem);
1440
1441 s->con = graphic_console_init(NULL, 0, &pxa2xx_ops, s);
1442
1443 vmstate_register(NULL, 0, &vmstate_pxa2xx_lcdc, s);
1444
1445 return s;
1446 }
1447
pxa2xx_lcd_vsync_notifier(PXA2xxLCDState * s,qemu_irq handler)1448 void pxa2xx_lcd_vsync_notifier(PXA2xxLCDState *s, qemu_irq handler)
1449 {
1450 s->vsync_cb = handler;
1451 }
1452