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23#include <linux/module.h>
24#include <linux/delay.h>
25#include <linux/slab.h>
26#include <linux/fb.h>
27#include <linux/dma-mapping.h>
28#include <linux/vmalloc.h>
29#include <linux/device.h>
30#include <linux/platform_device.h>
31#include <linux/omapfb.h>
32
33#include <video/omapfb_dss.h>
34#include <video/omapvrfb.h>
35
36#include "omapfb.h"
37
38#define MODULE_NAME "omapfb"
39
40#define OMAPFB_PLANE_XRES_MIN 8
41#define OMAPFB_PLANE_YRES_MIN 8
42
43static char *def_mode;
44static char *def_vram;
45static bool def_vrfb;
46static int def_rotate;
47static bool def_mirror;
48static bool auto_update;
49static unsigned int auto_update_freq;
50module_param(auto_update, bool, 0);
51module_param(auto_update_freq, uint, 0644);
52
53#ifdef DEBUG
54bool omapfb_debug;
55module_param_named(debug, omapfb_debug, bool, 0644);
56static bool omapfb_test_pattern;
57module_param_named(test, omapfb_test_pattern, bool, 0644);
58#endif
59
60static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi);
61static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev,
62 struct omap_dss_device *dssdev);
63
64#ifdef DEBUG
65static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color)
66{
67 struct fb_var_screeninfo *var = &fbi->var;
68 struct fb_fix_screeninfo *fix = &fbi->fix;
69 void __iomem *addr = fbi->screen_base;
70 const unsigned bytespp = var->bits_per_pixel >> 3;
71 const unsigned line_len = fix->line_length / bytespp;
72
73 int r = (color >> 16) & 0xff;
74 int g = (color >> 8) & 0xff;
75 int b = (color >> 0) & 0xff;
76
77 if (var->bits_per_pixel == 16) {
78 u16 __iomem *p = (u16 __iomem *)addr;
79 p += y * line_len + x;
80
81 r = r * 32 / 256;
82 g = g * 64 / 256;
83 b = b * 32 / 256;
84
85 __raw_writew((r << 11) | (g << 5) | (b << 0), p);
86 } else if (var->bits_per_pixel == 24) {
87 u8 __iomem *p = (u8 __iomem *)addr;
88 p += (y * line_len + x) * 3;
89
90 __raw_writeb(b, p + 0);
91 __raw_writeb(g, p + 1);
92 __raw_writeb(r, p + 2);
93 } else if (var->bits_per_pixel == 32) {
94 u32 __iomem *p = (u32 __iomem *)addr;
95 p += y * line_len + x;
96 __raw_writel(color, p);
97 }
98}
99
100static void fill_fb(struct fb_info *fbi)
101{
102 struct fb_var_screeninfo *var = &fbi->var;
103 const short w = var->xres_virtual;
104 const short h = var->yres_virtual;
105 void __iomem *addr = fbi->screen_base;
106 int y, x;
107
108 if (!addr)
109 return;
110
111 DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length);
112
113 for (y = 0; y < h; y++) {
114 for (x = 0; x < w; x++) {
115 if (x < 20 && y < 20)
116 draw_pixel(fbi, x, y, 0xffffff);
117 else if (x < 20 && (y > 20 && y < h - 20))
118 draw_pixel(fbi, x, y, 0xff);
119 else if (y < 20 && (x > 20 && x < w - 20))
120 draw_pixel(fbi, x, y, 0xff00);
121 else if (x > w - 20 && (y > 20 && y < h - 20))
122 draw_pixel(fbi, x, y, 0xff0000);
123 else if (y > h - 20 && (x > 20 && x < w - 20))
124 draw_pixel(fbi, x, y, 0xffff00);
125 else if (x == 20 || x == w - 20 ||
126 y == 20 || y == h - 20)
127 draw_pixel(fbi, x, y, 0xffffff);
128 else if (x == y || w - x == h - y)
129 draw_pixel(fbi, x, y, 0xff00ff);
130 else if (w - x == y || x == h - y)
131 draw_pixel(fbi, x, y, 0x00ffff);
132 else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) {
133 int t = x * 3 / w;
134 unsigned r = 0, g = 0, b = 0;
135 unsigned c;
136 if (var->bits_per_pixel == 16) {
137 if (t == 0)
138 b = (y % 32) * 256 / 32;
139 else if (t == 1)
140 g = (y % 64) * 256 / 64;
141 else if (t == 2)
142 r = (y % 32) * 256 / 32;
143 } else {
144 if (t == 0)
145 b = (y % 256);
146 else if (t == 1)
147 g = (y % 256);
148 else if (t == 2)
149 r = (y % 256);
150 }
151 c = (r << 16) | (g << 8) | (b << 0);
152 draw_pixel(fbi, x, y, c);
153 } else {
154 draw_pixel(fbi, x, y, 0);
155 }
156 }
157 }
158}
159#endif
160
161static unsigned omapfb_get_vrfb_offset(const struct omapfb_info *ofbi, int rot)
162{
163 const struct vrfb *vrfb = &ofbi->region->vrfb;
164 unsigned offset;
165
166 switch (rot) {
167 case FB_ROTATE_UR:
168 offset = 0;
169 break;
170 case FB_ROTATE_CW:
171 offset = vrfb->yoffset;
172 break;
173 case FB_ROTATE_UD:
174 offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset;
175 break;
176 case FB_ROTATE_CCW:
177 offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN;
178 break;
179 default:
180 BUG();
181 return 0;
182 }
183
184 offset *= vrfb->bytespp;
185
186 return offset;
187}
188
189static u32 omapfb_get_region_rot_paddr(const struct omapfb_info *ofbi, int rot)
190{
191 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
192 return ofbi->region->vrfb.paddr[rot]
193 + omapfb_get_vrfb_offset(ofbi, rot);
194 } else {
195 return ofbi->region->paddr;
196 }
197}
198
199static u32 omapfb_get_region_paddr(const struct omapfb_info *ofbi)
200{
201 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
202 return ofbi->region->vrfb.paddr[0];
203 else
204 return ofbi->region->paddr;
205}
206
207static void __iomem *omapfb_get_region_vaddr(const struct omapfb_info *ofbi)
208{
209 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
210 return ofbi->region->vrfb.vaddr[0];
211 else
212 return ofbi->region->vaddr;
213}
214
215static struct omapfb_colormode omapfb_colormodes[] = {
216 {
217 .dssmode = OMAP_DSS_COLOR_UYVY,
218 .bits_per_pixel = 16,
219 .nonstd = OMAPFB_COLOR_YUV422,
220 }, {
221 .dssmode = OMAP_DSS_COLOR_YUV2,
222 .bits_per_pixel = 16,
223 .nonstd = OMAPFB_COLOR_YUY422,
224 }, {
225 .dssmode = OMAP_DSS_COLOR_ARGB16,
226 .bits_per_pixel = 16,
227 .red = { .length = 4, .offset = 8, .msb_right = 0 },
228 .green = { .length = 4, .offset = 4, .msb_right = 0 },
229 .blue = { .length = 4, .offset = 0, .msb_right = 0 },
230 .transp = { .length = 4, .offset = 12, .msb_right = 0 },
231 }, {
232 .dssmode = OMAP_DSS_COLOR_RGB16,
233 .bits_per_pixel = 16,
234 .red = { .length = 5, .offset = 11, .msb_right = 0 },
235 .green = { .length = 6, .offset = 5, .msb_right = 0 },
236 .blue = { .length = 5, .offset = 0, .msb_right = 0 },
237 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
238 }, {
239 .dssmode = OMAP_DSS_COLOR_RGB24P,
240 .bits_per_pixel = 24,
241 .red = { .length = 8, .offset = 16, .msb_right = 0 },
242 .green = { .length = 8, .offset = 8, .msb_right = 0 },
243 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
244 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
245 }, {
246 .dssmode = OMAP_DSS_COLOR_RGB24U,
247 .bits_per_pixel = 32,
248 .red = { .length = 8, .offset = 16, .msb_right = 0 },
249 .green = { .length = 8, .offset = 8, .msb_right = 0 },
250 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
251 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
252 }, {
253 .dssmode = OMAP_DSS_COLOR_ARGB32,
254 .bits_per_pixel = 32,
255 .red = { .length = 8, .offset = 16, .msb_right = 0 },
256 .green = { .length = 8, .offset = 8, .msb_right = 0 },
257 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
258 .transp = { .length = 8, .offset = 24, .msb_right = 0 },
259 }, {
260 .dssmode = OMAP_DSS_COLOR_RGBA32,
261 .bits_per_pixel = 32,
262 .red = { .length = 8, .offset = 24, .msb_right = 0 },
263 .green = { .length = 8, .offset = 16, .msb_right = 0 },
264 .blue = { .length = 8, .offset = 8, .msb_right = 0 },
265 .transp = { .length = 8, .offset = 0, .msb_right = 0 },
266 }, {
267 .dssmode = OMAP_DSS_COLOR_RGBX32,
268 .bits_per_pixel = 32,
269 .red = { .length = 8, .offset = 24, .msb_right = 0 },
270 .green = { .length = 8, .offset = 16, .msb_right = 0 },
271 .blue = { .length = 8, .offset = 8, .msb_right = 0 },
272 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
273 },
274};
275
276static bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2)
277{
278 return f1->length == f2->length &&
279 f1->offset == f2->offset &&
280 f1->msb_right == f2->msb_right;
281}
282
283static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
284 struct omapfb_colormode *color)
285{
286 if (var->bits_per_pixel == 0 ||
287 var->red.length == 0 ||
288 var->blue.length == 0 ||
289 var->green.length == 0)
290 return false;
291
292 return var->bits_per_pixel == color->bits_per_pixel &&
293 cmp_component(&var->red, &color->red) &&
294 cmp_component(&var->green, &color->green) &&
295 cmp_component(&var->blue, &color->blue) &&
296 cmp_component(&var->transp, &color->transp);
297}
298
299static void assign_colormode_to_var(struct fb_var_screeninfo *var,
300 struct omapfb_colormode *color)
301{
302 var->bits_per_pixel = color->bits_per_pixel;
303 var->nonstd = color->nonstd;
304 var->red = color->red;
305 var->green = color->green;
306 var->blue = color->blue;
307 var->transp = color->transp;
308}
309
310static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var,
311 enum omap_color_mode *mode)
312{
313 enum omap_color_mode dssmode;
314 int i;
315
316
317 if (var->nonstd) {
318 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
319 struct omapfb_colormode *m = &omapfb_colormodes[i];
320 if (var->nonstd == m->nonstd) {
321 assign_colormode_to_var(var, m);
322 *mode = m->dssmode;
323 return 0;
324 }
325 }
326
327 return -EINVAL;
328 }
329
330
331 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
332 struct omapfb_colormode *m = &omapfb_colormodes[i];
333 if (cmp_var_to_colormode(var, m)) {
334 assign_colormode_to_var(var, m);
335 *mode = m->dssmode;
336 return 0;
337 }
338 }
339
340
341
342 switch (var->bits_per_pixel) {
343 case 1:
344 dssmode = OMAP_DSS_COLOR_CLUT1;
345 break;
346 case 2:
347 dssmode = OMAP_DSS_COLOR_CLUT2;
348 break;
349 case 4:
350 dssmode = OMAP_DSS_COLOR_CLUT4;
351 break;
352 case 8:
353 dssmode = OMAP_DSS_COLOR_CLUT8;
354 break;
355 case 12:
356 dssmode = OMAP_DSS_COLOR_RGB12U;
357 break;
358 case 16:
359 dssmode = OMAP_DSS_COLOR_RGB16;
360 break;
361 case 24:
362 dssmode = OMAP_DSS_COLOR_RGB24P;
363 break;
364 case 32:
365 dssmode = OMAP_DSS_COLOR_RGB24U;
366 break;
367 default:
368 return -EINVAL;
369 }
370
371 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
372 struct omapfb_colormode *m = &omapfb_colormodes[i];
373 if (dssmode == m->dssmode) {
374 assign_colormode_to_var(var, m);
375 *mode = m->dssmode;
376 return 0;
377 }
378 }
379
380 return -EINVAL;
381}
382
383static int check_fb_res_bounds(struct fb_var_screeninfo *var)
384{
385 int xres_min = OMAPFB_PLANE_XRES_MIN;
386 int xres_max = 2048;
387 int yres_min = OMAPFB_PLANE_YRES_MIN;
388 int yres_max = 2048;
389
390
391 if (var->xres_virtual == 0)
392 var->xres_virtual = var->xres;
393
394 if (var->yres_virtual == 0)
395 var->yres_virtual = var->yres;
396
397 if (var->xres_virtual < xres_min || var->yres_virtual < yres_min)
398 return -EINVAL;
399
400 if (var->xres < xres_min)
401 var->xres = xres_min;
402 if (var->yres < yres_min)
403 var->yres = yres_min;
404 if (var->xres > xres_max)
405 var->xres = xres_max;
406 if (var->yres > yres_max)
407 var->yres = yres_max;
408
409 if (var->xres > var->xres_virtual)
410 var->xres = var->xres_virtual;
411 if (var->yres > var->yres_virtual)
412 var->yres = var->yres_virtual;
413
414 return 0;
415}
416
417static void shrink_height(unsigned long max_frame_size,
418 struct fb_var_screeninfo *var)
419{
420 DBG("can't fit FB into memory, reducing y\n");
421 var->yres_virtual = max_frame_size /
422 (var->xres_virtual * var->bits_per_pixel >> 3);
423
424 if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN)
425 var->yres_virtual = OMAPFB_PLANE_YRES_MIN;
426
427 if (var->yres > var->yres_virtual)
428 var->yres = var->yres_virtual;
429}
430
431static void shrink_width(unsigned long max_frame_size,
432 struct fb_var_screeninfo *var)
433{
434 DBG("can't fit FB into memory, reducing x\n");
435 var->xres_virtual = max_frame_size / var->yres_virtual /
436 (var->bits_per_pixel >> 3);
437
438 if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN)
439 var->xres_virtual = OMAPFB_PLANE_XRES_MIN;
440
441 if (var->xres > var->xres_virtual)
442 var->xres = var->xres_virtual;
443}
444
445static int check_vrfb_fb_size(unsigned long region_size,
446 const struct fb_var_screeninfo *var)
447{
448 unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual,
449 var->yres_virtual, var->bits_per_pixel >> 3);
450
451 return min_phys_size > region_size ? -EINVAL : 0;
452}
453
454static int check_fb_size(const struct omapfb_info *ofbi,
455 struct fb_var_screeninfo *var)
456{
457 unsigned long max_frame_size = ofbi->region->size;
458 int bytespp = var->bits_per_pixel >> 3;
459 unsigned long line_size = var->xres_virtual * bytespp;
460
461 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
462
463 if (check_vrfb_fb_size(max_frame_size, var))
464 shrink_height(omap_vrfb_max_height(
465 max_frame_size, var->xres_virtual, bytespp) *
466 line_size, var);
467
468 if (check_vrfb_fb_size(max_frame_size, var)) {
469 DBG("cannot fit FB to memory\n");
470 return -EINVAL;
471 }
472
473 return 0;
474 }
475
476 DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size);
477
478 if (line_size * var->yres_virtual > max_frame_size)
479 shrink_height(max_frame_size, var);
480
481 if (line_size * var->yres_virtual > max_frame_size) {
482 shrink_width(max_frame_size, var);
483 line_size = var->xres_virtual * bytespp;
484 }
485
486 if (line_size * var->yres_virtual > max_frame_size) {
487 DBG("cannot fit FB to memory\n");
488 return -EINVAL;
489 }
490
491 return 0;
492}
493
494
495
496
497
498
499
500
501static int setup_vrfb_rotation(struct fb_info *fbi)
502{
503 struct omapfb_info *ofbi = FB2OFB(fbi);
504 struct omapfb2_mem_region *rg = ofbi->region;
505 struct vrfb *vrfb = &rg->vrfb;
506 struct fb_var_screeninfo *var = &fbi->var;
507 struct fb_fix_screeninfo *fix = &fbi->fix;
508 unsigned bytespp;
509 bool yuv_mode;
510 enum omap_color_mode mode;
511 int r;
512 bool reconf;
513
514 if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB)
515 return 0;
516
517 DBG("setup_vrfb_rotation\n");
518
519 r = fb_mode_to_dss_mode(var, &mode);
520 if (r)
521 return r;
522
523 bytespp = var->bits_per_pixel >> 3;
524
525 yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY;
526
527
528
529
530
531
532 reconf = false;
533
534 if (yuv_mode != vrfb->yuv_mode)
535 reconf = true;
536 else if (bytespp != vrfb->bytespp)
537 reconf = true;
538 else if (vrfb->xres != var->xres_virtual ||
539 vrfb->yres != var->yres_virtual)
540 reconf = true;
541
542 if (vrfb->vaddr[0] && reconf) {
543 fbi->screen_base = NULL;
544 fix->smem_start = 0;
545 fix->smem_len = 0;
546 iounmap(vrfb->vaddr[0]);
547 vrfb->vaddr[0] = NULL;
548 DBG("setup_vrfb_rotation: reset fb\n");
549 }
550
551 if (vrfb->vaddr[0])
552 return 0;
553
554 omap_vrfb_setup(&rg->vrfb, rg->paddr,
555 var->xres_virtual,
556 var->yres_virtual,
557 bytespp, yuv_mode);
558
559
560 r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0);
561 if (r)
562 return r;
563
564
565 fbi->screen_base = ofbi->region->vrfb.vaddr[0];
566
567 fix->smem_start = ofbi->region->vrfb.paddr[0];
568
569 switch (var->nonstd) {
570 case OMAPFB_COLOR_YUV422:
571 case OMAPFB_COLOR_YUY422:
572 fix->line_length =
573 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
574 break;
575 default:
576 fix->line_length =
577 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
578 break;
579 }
580
581 fix->smem_len = var->yres_virtual * fix->line_length;
582
583 return 0;
584}
585
586int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
587 struct fb_var_screeninfo *var)
588{
589 int i;
590
591 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
592 struct omapfb_colormode *mode = &omapfb_colormodes[i];
593 if (dssmode == mode->dssmode) {
594 assign_colormode_to_var(var, mode);
595 return 0;
596 }
597 }
598 return -ENOENT;
599}
600
601void set_fb_fix(struct fb_info *fbi)
602{
603 struct fb_fix_screeninfo *fix = &fbi->fix;
604 struct fb_var_screeninfo *var = &fbi->var;
605 struct omapfb_info *ofbi = FB2OFB(fbi);
606 struct omapfb2_mem_region *rg = ofbi->region;
607
608 DBG("set_fb_fix\n");
609
610
611 fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi);
612
613
614 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
615 switch (var->nonstd) {
616 case OMAPFB_COLOR_YUV422:
617 case OMAPFB_COLOR_YUY422:
618 fix->line_length =
619 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
620 break;
621 default:
622 fix->line_length =
623 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
624 break;
625 }
626
627 fix->smem_len = var->yres_virtual * fix->line_length;
628 } else {
629 fix->line_length =
630 (var->xres_virtual * var->bits_per_pixel) >> 3;
631 fix->smem_len = rg->size;
632 }
633
634 fix->smem_start = omapfb_get_region_paddr(ofbi);
635
636 fix->type = FB_TYPE_PACKED_PIXELS;
637
638 if (var->nonstd)
639 fix->visual = FB_VISUAL_PSEUDOCOLOR;
640 else {
641 switch (var->bits_per_pixel) {
642 case 32:
643 case 24:
644 case 16:
645 case 12:
646 fix->visual = FB_VISUAL_TRUECOLOR;
647
648 break;
649 case 1:
650 case 2:
651 case 4:
652 case 8:
653 fix->visual = FB_VISUAL_PSEUDOCOLOR;
654 break;
655 }
656 }
657
658 fix->accel = FB_ACCEL_NONE;
659
660 fix->xpanstep = 1;
661 fix->ypanstep = 1;
662}
663
664
665int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
666{
667 struct omapfb_info *ofbi = FB2OFB(fbi);
668 struct omap_dss_device *display = fb2display(fbi);
669 enum omap_color_mode mode = 0;
670 int i;
671 int r;
672
673 DBG("check_fb_var %d\n", ofbi->id);
674
675 WARN_ON(!atomic_read(&ofbi->region->lock_count));
676
677 r = fb_mode_to_dss_mode(var, &mode);
678 if (r) {
679 DBG("cannot convert var to omap dss mode\n");
680 return r;
681 }
682
683 for (i = 0; i < ofbi->num_overlays; ++i) {
684 if ((ofbi->overlays[i]->supported_modes & mode) == 0) {
685 DBG("invalid mode\n");
686 return -EINVAL;
687 }
688 }
689
690 if (var->rotate > 3)
691 return -EINVAL;
692
693 if (check_fb_res_bounds(var))
694 return -EINVAL;
695
696
697 if (ofbi->region->size != 0 && check_fb_size(ofbi, var))
698 return -EINVAL;
699
700 if (var->xres + var->xoffset > var->xres_virtual)
701 var->xoffset = var->xres_virtual - var->xres;
702 if (var->yres + var->yoffset > var->yres_virtual)
703 var->yoffset = var->yres_virtual - var->yres;
704
705 DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
706 var->xres, var->yres,
707 var->xres_virtual, var->yres_virtual);
708
709 if (display && display->driver->get_dimensions) {
710 u32 w, h;
711 display->driver->get_dimensions(display, &w, &h);
712 var->width = DIV_ROUND_CLOSEST(w, 1000);
713 var->height = DIV_ROUND_CLOSEST(h, 1000);
714 } else {
715 var->height = -1;
716 var->width = -1;
717 }
718
719 var->grayscale = 0;
720
721 if (display && display->driver->get_timings) {
722 struct omap_video_timings timings;
723 display->driver->get_timings(display, &timings);
724
725
726 var->pixclock = timings.pixelclock != 0 ?
727 KHZ2PICOS(timings.pixelclock / 1000) :
728 0;
729 var->left_margin = timings.hbp;
730 var->right_margin = timings.hfp;
731 var->upper_margin = timings.vbp;
732 var->lower_margin = timings.vfp;
733 var->hsync_len = timings.hsw;
734 var->vsync_len = timings.vsw;
735 var->sync |= timings.hsync_level == OMAPDSS_SIG_ACTIVE_HIGH ?
736 FB_SYNC_HOR_HIGH_ACT : 0;
737 var->sync |= timings.vsync_level == OMAPDSS_SIG_ACTIVE_HIGH ?
738 FB_SYNC_VERT_HIGH_ACT : 0;
739 var->vmode = timings.interlace ?
740 FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED;
741 } else {
742 var->pixclock = 0;
743 var->left_margin = 0;
744 var->right_margin = 0;
745 var->upper_margin = 0;
746 var->lower_margin = 0;
747 var->hsync_len = 0;
748 var->vsync_len = 0;
749 var->sync = 0;
750 var->vmode = FB_VMODE_NONINTERLACED;
751 }
752
753 return 0;
754}
755
756
757
758
759
760
761static int omapfb_open(struct fb_info *fbi, int user)
762{
763 return 0;
764}
765
766static int omapfb_release(struct fb_info *fbi, int user)
767{
768 return 0;
769}
770
771static unsigned calc_rotation_offset_dma(const struct fb_var_screeninfo *var,
772 const struct fb_fix_screeninfo *fix, int rotation)
773{
774 unsigned offset;
775
776 offset = var->yoffset * fix->line_length +
777 var->xoffset * (var->bits_per_pixel >> 3);
778
779 return offset;
780}
781
782static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var,
783 const struct fb_fix_screeninfo *fix, int rotation)
784{
785 unsigned offset;
786
787 if (rotation == FB_ROTATE_UD)
788 offset = (var->yres_virtual - var->yres) *
789 fix->line_length;
790 else if (rotation == FB_ROTATE_CW)
791 offset = (var->yres_virtual - var->yres) *
792 (var->bits_per_pixel >> 3);
793 else
794 offset = 0;
795
796 if (rotation == FB_ROTATE_UR)
797 offset += var->yoffset * fix->line_length +
798 var->xoffset * (var->bits_per_pixel >> 3);
799 else if (rotation == FB_ROTATE_UD)
800 offset -= var->yoffset * fix->line_length +
801 var->xoffset * (var->bits_per_pixel >> 3);
802 else if (rotation == FB_ROTATE_CW)
803 offset -= var->xoffset * fix->line_length +
804 var->yoffset * (var->bits_per_pixel >> 3);
805 else if (rotation == FB_ROTATE_CCW)
806 offset += var->xoffset * fix->line_length +
807 var->yoffset * (var->bits_per_pixel >> 3);
808
809 return offset;
810}
811
812static void omapfb_calc_addr(const struct omapfb_info *ofbi,
813 const struct fb_var_screeninfo *var,
814 const struct fb_fix_screeninfo *fix,
815 int rotation, u32 *paddr)
816{
817 u32 data_start_p;
818 int offset;
819
820 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
821 data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
822 else
823 data_start_p = omapfb_get_region_paddr(ofbi);
824
825 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
826 offset = calc_rotation_offset_vrfb(var, fix, rotation);
827 else
828 offset = calc_rotation_offset_dma(var, fix, rotation);
829
830 data_start_p += offset;
831
832 if (offset)
833 DBG("offset %d, %d = %d\n",
834 var->xoffset, var->yoffset, offset);
835
836 DBG("paddr %x\n", data_start_p);
837
838 *paddr = data_start_p;
839}
840
841
842int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
843 u16 posx, u16 posy, u16 outw, u16 outh)
844{
845 int r = 0;
846 struct omapfb_info *ofbi = FB2OFB(fbi);
847 struct fb_var_screeninfo *var = &fbi->var;
848 struct fb_fix_screeninfo *fix = &fbi->fix;
849 enum omap_color_mode mode = 0;
850 u32 data_start_p = 0;
851 struct omap_overlay_info info;
852 int xres, yres;
853 int screen_width;
854 int mirror;
855 int rotation = var->rotate;
856 int i;
857
858 WARN_ON(!atomic_read(&ofbi->region->lock_count));
859
860 for (i = 0; i < ofbi->num_overlays; i++) {
861 if (ovl != ofbi->overlays[i])
862 continue;
863
864 rotation = (rotation + ofbi->rotation[i]) % 4;
865 break;
866 }
867
868 DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id,
869 posx, posy, outw, outh);
870
871 if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) {
872 xres = var->yres;
873 yres = var->xres;
874 } else {
875 xres = var->xres;
876 yres = var->yres;
877 }
878
879 if (ofbi->region->size)
880 omapfb_calc_addr(ofbi, var, fix, rotation, &data_start_p);
881
882 r = fb_mode_to_dss_mode(var, &mode);
883 if (r) {
884 DBG("fb_mode_to_dss_mode failed");
885 goto err;
886 }
887
888 switch (var->nonstd) {
889 case OMAPFB_COLOR_YUV422:
890 case OMAPFB_COLOR_YUY422:
891 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
892 screen_width = fix->line_length
893 / (var->bits_per_pixel >> 2);
894 break;
895 }
896
897 default:
898 screen_width = fix->line_length / (var->bits_per_pixel >> 3);
899 break;
900 }
901
902 ovl->get_overlay_info(ovl, &info);
903
904 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
905 mirror = 0;
906 else
907 mirror = ofbi->mirror;
908
909 info.paddr = data_start_p;
910 info.screen_width = screen_width;
911 info.width = xres;
912 info.height = yres;
913 info.color_mode = mode;
914 info.rotation_type = ofbi->rotation_type;
915 info.rotation = rotation;
916 info.mirror = mirror;
917
918 info.pos_x = posx;
919 info.pos_y = posy;
920 info.out_width = outw;
921 info.out_height = outh;
922
923 r = ovl->set_overlay_info(ovl, &info);
924 if (r) {
925 DBG("ovl->setup_overlay_info failed\n");
926 goto err;
927 }
928
929 return 0;
930
931err:
932 DBG("setup_overlay failed\n");
933 return r;
934}
935
936
937int omapfb_apply_changes(struct fb_info *fbi, int init)
938{
939 int r = 0;
940 struct omapfb_info *ofbi = FB2OFB(fbi);
941 struct fb_var_screeninfo *var = &fbi->var;
942 struct omap_overlay *ovl;
943 u16 posx, posy;
944 u16 outw, outh;
945 int i;
946
947#ifdef DEBUG
948 if (omapfb_test_pattern)
949 fill_fb(fbi);
950#endif
951
952 WARN_ON(!atomic_read(&ofbi->region->lock_count));
953
954 for (i = 0; i < ofbi->num_overlays; i++) {
955 ovl = ofbi->overlays[i];
956
957 DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id);
958
959 if (ofbi->region->size == 0) {
960
961 omapfb_overlay_enable(ovl, 0);
962 if (!init && ovl->manager)
963 ovl->manager->apply(ovl->manager);
964 continue;
965 }
966
967 if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
968 int rotation = (var->rotate + ofbi->rotation[i]) % 4;
969 if (rotation == FB_ROTATE_CW ||
970 rotation == FB_ROTATE_CCW) {
971 outw = var->yres;
972 outh = var->xres;
973 } else {
974 outw = var->xres;
975 outh = var->yres;
976 }
977 } else {
978 struct omap_overlay_info info;
979 ovl->get_overlay_info(ovl, &info);
980 outw = info.out_width;
981 outh = info.out_height;
982 }
983
984 if (init) {
985 posx = 0;
986 posy = 0;
987 } else {
988 struct omap_overlay_info info;
989 ovl->get_overlay_info(ovl, &info);
990 posx = info.pos_x;
991 posy = info.pos_y;
992 }
993
994 r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
995 if (r)
996 goto err;
997
998 if (!init && ovl->manager)
999 ovl->manager->apply(ovl->manager);
1000 }
1001 return 0;
1002err:
1003 DBG("apply_changes failed\n");
1004 return r;
1005}
1006
1007
1008
1009static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
1010{
1011 struct omapfb_info *ofbi = FB2OFB(fbi);
1012 int r;
1013
1014 DBG("check_var(%d)\n", FB2OFB(fbi)->id);
1015
1016 omapfb_get_mem_region(ofbi->region);
1017
1018 r = check_fb_var(fbi, var);
1019
1020 omapfb_put_mem_region(ofbi->region);
1021
1022 return r;
1023}
1024
1025
1026static int omapfb_set_par(struct fb_info *fbi)
1027{
1028 struct omapfb_info *ofbi = FB2OFB(fbi);
1029 int r;
1030
1031 DBG("set_par(%d)\n", FB2OFB(fbi)->id);
1032
1033 omapfb_get_mem_region(ofbi->region);
1034
1035 set_fb_fix(fbi);
1036
1037 r = setup_vrfb_rotation(fbi);
1038 if (r)
1039 goto out;
1040
1041 r = omapfb_apply_changes(fbi, 0);
1042
1043 out:
1044 omapfb_put_mem_region(ofbi->region);
1045
1046 return r;
1047}
1048
1049static int omapfb_pan_display(struct fb_var_screeninfo *var,
1050 struct fb_info *fbi)
1051{
1052 struct omapfb_info *ofbi = FB2OFB(fbi);
1053 struct fb_var_screeninfo new_var;
1054 int r;
1055
1056 DBG("pan_display(%d)\n", FB2OFB(fbi)->id);
1057
1058 if (var->xoffset == fbi->var.xoffset &&
1059 var->yoffset == fbi->var.yoffset)
1060 return 0;
1061
1062 new_var = fbi->var;
1063 new_var.xoffset = var->xoffset;
1064 new_var.yoffset = var->yoffset;
1065
1066 fbi->var = new_var;
1067
1068 omapfb_get_mem_region(ofbi->region);
1069
1070 r = omapfb_apply_changes(fbi, 0);
1071
1072 omapfb_put_mem_region(ofbi->region);
1073
1074 return r;
1075}
1076
1077static void mmap_user_open(struct vm_area_struct *vma)
1078{
1079 struct omapfb2_mem_region *rg = vma->vm_private_data;
1080
1081 omapfb_get_mem_region(rg);
1082 atomic_inc(&rg->map_count);
1083 omapfb_put_mem_region(rg);
1084}
1085
1086static void mmap_user_close(struct vm_area_struct *vma)
1087{
1088 struct omapfb2_mem_region *rg = vma->vm_private_data;
1089
1090 omapfb_get_mem_region(rg);
1091 atomic_dec(&rg->map_count);
1092 omapfb_put_mem_region(rg);
1093}
1094
1095static const struct vm_operations_struct mmap_user_ops = {
1096 .open = mmap_user_open,
1097 .close = mmap_user_close,
1098};
1099
1100static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
1101{
1102 struct omapfb_info *ofbi = FB2OFB(fbi);
1103 struct fb_fix_screeninfo *fix = &fbi->fix;
1104 struct omapfb2_mem_region *rg;
1105 unsigned long start;
1106 u32 len;
1107 int r;
1108
1109 rg = omapfb_get_mem_region(ofbi->region);
1110
1111 start = omapfb_get_region_paddr(ofbi);
1112 len = fix->smem_len;
1113
1114 DBG("user mmap region start %lx, len %d, off %lx\n", start, len,
1115 vma->vm_pgoff << PAGE_SHIFT);
1116
1117 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
1118 vma->vm_ops = &mmap_user_ops;
1119 vma->vm_private_data = rg;
1120
1121 r = vm_iomap_memory(vma, start, len);
1122 if (r)
1123 goto error;
1124
1125
1126 atomic_inc(&rg->map_count);
1127
1128 omapfb_put_mem_region(rg);
1129
1130 return 0;
1131
1132error:
1133 omapfb_put_mem_region(ofbi->region);
1134
1135 return r;
1136}
1137
1138
1139
1140
1141
1142static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
1143 u_int blue, u_int transp, int update_hw_pal)
1144{
1145
1146
1147 struct fb_var_screeninfo *var = &fbi->var;
1148 int r = 0;
1149
1150 enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U;
1151
1152
1153 switch (mode) {
1154 case OMAPFB_COLOR_YUV422:
1155 case OMAPFB_COLOR_YUV420:
1156 case OMAPFB_COLOR_YUY422:
1157 r = -EINVAL;
1158 break;
1159 case OMAPFB_COLOR_CLUT_8BPP:
1160 case OMAPFB_COLOR_CLUT_4BPP:
1161 case OMAPFB_COLOR_CLUT_2BPP:
1162 case OMAPFB_COLOR_CLUT_1BPP:
1163
1164
1165
1166
1167
1168
1169 r = -EINVAL;
1170 break;
1171 case OMAPFB_COLOR_RGB565:
1172 case OMAPFB_COLOR_RGB444:
1173 case OMAPFB_COLOR_RGB24P:
1174 case OMAPFB_COLOR_RGB24U:
1175 if (r != 0)
1176 break;
1177
1178 if (regno < 16) {
1179 u32 pal;
1180 pal = ((red >> (16 - var->red.length)) <<
1181 var->red.offset) |
1182 ((green >> (16 - var->green.length)) <<
1183 var->green.offset) |
1184 (blue >> (16 - var->blue.length));
1185 ((u32 *)(fbi->pseudo_palette))[regno] = pal;
1186 }
1187 break;
1188 default:
1189 BUG();
1190 }
1191 return r;
1192}
1193
1194static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
1195 u_int transp, struct fb_info *info)
1196{
1197 DBG("setcolreg\n");
1198
1199 return _setcolreg(info, regno, red, green, blue, transp, 1);
1200}
1201
1202static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
1203{
1204 int count, index, r;
1205 u16 *red, *green, *blue, *transp;
1206 u16 trans = 0xffff;
1207
1208 DBG("setcmap\n");
1209
1210 red = cmap->red;
1211 green = cmap->green;
1212 blue = cmap->blue;
1213 transp = cmap->transp;
1214 index = cmap->start;
1215
1216 for (count = 0; count < cmap->len; count++) {
1217 if (transp)
1218 trans = *transp++;
1219 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
1220 count == cmap->len - 1);
1221 if (r != 0)
1222 return r;
1223 }
1224
1225 return 0;
1226}
1227
1228static int omapfb_blank(int blank, struct fb_info *fbi)
1229{
1230 struct omapfb_info *ofbi = FB2OFB(fbi);
1231 struct omapfb2_device *fbdev = ofbi->fbdev;
1232 struct omap_dss_device *display = fb2display(fbi);
1233 struct omapfb_display_data *d;
1234 int r = 0;
1235
1236 if (!display)
1237 return -EINVAL;
1238
1239 omapfb_lock(fbdev);
1240
1241 d = get_display_data(fbdev, display);
1242
1243 switch (blank) {
1244 case FB_BLANK_UNBLANK:
1245 if (display->state == OMAP_DSS_DISPLAY_ACTIVE)
1246 goto exit;
1247
1248 r = display->driver->enable(display);
1249
1250 if ((display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) &&
1251 d->update_mode == OMAPFB_AUTO_UPDATE &&
1252 !d->auto_update_work_enabled)
1253 omapfb_start_auto_update(fbdev, display);
1254
1255 break;
1256
1257 case FB_BLANK_NORMAL:
1258
1259
1260 case FB_BLANK_VSYNC_SUSPEND:
1261 case FB_BLANK_HSYNC_SUSPEND:
1262 case FB_BLANK_POWERDOWN:
1263 if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
1264 goto exit;
1265
1266 if (d->auto_update_work_enabled)
1267 omapfb_stop_auto_update(fbdev, display);
1268
1269 display->driver->disable(display);
1270
1271 break;
1272
1273 default:
1274 r = -EINVAL;
1275 }
1276
1277exit:
1278 omapfb_unlock(fbdev);
1279
1280 return r;
1281}
1282
1283#if 0
1284
1285ssize_t omapfb_write(struct fb_info *info, const char __user *buf,
1286 size_t count, loff_t *ppos)
1287{
1288 DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos);
1289
1290 return count;
1291}
1292#endif
1293
1294static struct fb_ops omapfb_ops = {
1295 .owner = THIS_MODULE,
1296 .fb_open = omapfb_open,
1297 .fb_release = omapfb_release,
1298 .fb_fillrect = cfb_fillrect,
1299 .fb_copyarea = cfb_copyarea,
1300 .fb_imageblit = cfb_imageblit,
1301 .fb_blank = omapfb_blank,
1302 .fb_ioctl = omapfb_ioctl,
1303 .fb_check_var = omapfb_check_var,
1304 .fb_set_par = omapfb_set_par,
1305 .fb_pan_display = omapfb_pan_display,
1306 .fb_mmap = omapfb_mmap,
1307 .fb_setcolreg = omapfb_setcolreg,
1308 .fb_setcmap = omapfb_setcmap,
1309
1310};
1311
1312static void omapfb_free_fbmem(struct fb_info *fbi)
1313{
1314 struct omapfb_info *ofbi = FB2OFB(fbi);
1315 struct omapfb2_device *fbdev = ofbi->fbdev;
1316 struct omapfb2_mem_region *rg;
1317
1318 rg = ofbi->region;
1319
1320 if (rg->token == NULL)
1321 return;
1322
1323 WARN_ON(atomic_read(&rg->map_count));
1324
1325 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1326
1327 if (rg->vrfb.vaddr[0]) {
1328 iounmap(rg->vrfb.vaddr[0]);
1329 rg->vrfb.vaddr[0] = NULL;
1330 }
1331
1332 omap_vrfb_release_ctx(&rg->vrfb);
1333 }
1334
1335 dma_free_attrs(fbdev->dev, rg->size, rg->token, rg->dma_handle,
1336 rg->attrs);
1337
1338 rg->token = NULL;
1339 rg->vaddr = NULL;
1340 rg->paddr = 0;
1341 rg->alloc = 0;
1342 rg->size = 0;
1343}
1344
1345static void clear_fb_info(struct fb_info *fbi)
1346{
1347 memset(&fbi->var, 0, sizeof(fbi->var));
1348 memset(&fbi->fix, 0, sizeof(fbi->fix));
1349 strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id));
1350}
1351
1352static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
1353{
1354 int i;
1355
1356 DBG("free all fbmem\n");
1357
1358 for (i = 0; i < fbdev->num_fbs; i++) {
1359 struct fb_info *fbi = fbdev->fbs[i];
1360 omapfb_free_fbmem(fbi);
1361 clear_fb_info(fbi);
1362 }
1363
1364 return 0;
1365}
1366
1367static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
1368 unsigned long paddr)
1369{
1370 struct omapfb_info *ofbi = FB2OFB(fbi);
1371 struct omapfb2_device *fbdev = ofbi->fbdev;
1372 struct omapfb2_mem_region *rg;
1373 void *token;
1374 unsigned long attrs;
1375 dma_addr_t dma_handle;
1376 int r;
1377
1378 rg = ofbi->region;
1379
1380 rg->paddr = 0;
1381 rg->vaddr = NULL;
1382 memset(&rg->vrfb, 0, sizeof rg->vrfb);
1383 rg->size = 0;
1384 rg->type = 0;
1385 rg->alloc = false;
1386 rg->map = false;
1387
1388 size = PAGE_ALIGN(size);
1389
1390 attrs = DMA_ATTR_WRITE_COMBINE;
1391
1392 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
1393 attrs |= DMA_ATTR_NO_KERNEL_MAPPING;
1394
1395 DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
1396
1397 token = dma_alloc_attrs(fbdev->dev, size, &dma_handle,
1398 GFP_KERNEL, attrs);
1399
1400 if (token == NULL) {
1401 dev_err(fbdev->dev, "failed to allocate framebuffer\n");
1402 return -ENOMEM;
1403 }
1404
1405 DBG("allocated VRAM paddr %lx, vaddr %p\n",
1406 (unsigned long)dma_handle, token);
1407
1408 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1409 r = omap_vrfb_request_ctx(&rg->vrfb);
1410 if (r) {
1411 dma_free_attrs(fbdev->dev, size, token, dma_handle,
1412 attrs);
1413 dev_err(fbdev->dev, "vrfb create ctx failed\n");
1414 return r;
1415 }
1416 }
1417
1418 rg->attrs = attrs;
1419 rg->token = token;
1420 rg->dma_handle = dma_handle;
1421
1422 rg->paddr = (unsigned long)dma_handle;
1423 rg->vaddr = (void __iomem *)token;
1424 rg->size = size;
1425 rg->alloc = 1;
1426
1427 return 0;
1428}
1429
1430
1431static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
1432 unsigned long paddr)
1433{
1434 struct omapfb_info *ofbi = FB2OFB(fbi);
1435 struct omapfb2_device *fbdev = ofbi->fbdev;
1436 struct omap_dss_device *display;
1437 int bytespp;
1438
1439 display = fb2display(fbi);
1440
1441 if (!display)
1442 return 0;
1443
1444 switch (omapfb_get_recommended_bpp(fbdev, display)) {
1445 case 16:
1446 bytespp = 2;
1447 break;
1448 case 24:
1449 bytespp = 4;
1450 break;
1451 default:
1452 bytespp = 4;
1453 break;
1454 }
1455
1456 if (!size) {
1457 u16 w, h;
1458
1459 display->driver->get_resolution(display, &w, &h);
1460
1461 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1462 size = max(omap_vrfb_min_phys_size(w, h, bytespp),
1463 omap_vrfb_min_phys_size(h, w, bytespp));
1464
1465 DBG("adjusting fb mem size for VRFB, %u -> %lu\n",
1466 w * h * bytespp, size);
1467 } else {
1468 size = w * h * bytespp;
1469 }
1470 }
1471
1472 if (!size)
1473 return 0;
1474
1475 return omapfb_alloc_fbmem(fbi, size, paddr);
1476}
1477
1478static int omapfb_parse_vram_param(const char *param, int max_entries,
1479 unsigned long *sizes, unsigned long *paddrs)
1480{
1481 unsigned int fbnum;
1482 unsigned long size;
1483 unsigned long paddr = 0;
1484 char *p, *start;
1485
1486 start = (char *)param;
1487
1488 while (1) {
1489 p = start;
1490
1491 fbnum = simple_strtoul(p, &p, 10);
1492
1493 if (p == start)
1494 return -EINVAL;
1495
1496 if (*p != ':')
1497 return -EINVAL;
1498
1499 if (fbnum >= max_entries)
1500 return -EINVAL;
1501
1502 size = memparse(p + 1, &p);
1503
1504 if (!size)
1505 return -EINVAL;
1506
1507 paddr = 0;
1508
1509 if (*p == '@') {
1510 paddr = simple_strtoul(p + 1, &p, 16);
1511
1512 if (!paddr)
1513 return -EINVAL;
1514
1515 }
1516
1517 WARN_ONCE(paddr,
1518 "reserving memory at predefined address not supported\n");
1519
1520 paddrs[fbnum] = paddr;
1521 sizes[fbnum] = size;
1522
1523 if (*p == 0)
1524 break;
1525
1526 if (*p != ',')
1527 return -EINVAL;
1528
1529 ++p;
1530
1531 start = p;
1532 }
1533
1534 return 0;
1535}
1536
1537static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev)
1538{
1539 int i, r;
1540 unsigned long vram_sizes[10];
1541 unsigned long vram_paddrs[10];
1542
1543 memset(&vram_sizes, 0, sizeof(vram_sizes));
1544 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1545
1546 if (def_vram && omapfb_parse_vram_param(def_vram, 10,
1547 vram_sizes, vram_paddrs)) {
1548 dev_err(fbdev->dev, "failed to parse vram parameter\n");
1549
1550 memset(&vram_sizes, 0, sizeof(vram_sizes));
1551 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1552 }
1553
1554 for (i = 0; i < fbdev->num_fbs; i++) {
1555
1556
1557 if (i == 0 || vram_sizes[i] != 0) {
1558 r = omapfb_alloc_fbmem_display(fbdev->fbs[i],
1559 vram_sizes[i], vram_paddrs[i]);
1560
1561 if (r)
1562 return r;
1563 }
1564 }
1565
1566 for (i = 0; i < fbdev->num_fbs; i++) {
1567 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1568 struct omapfb2_mem_region *rg;
1569 rg = ofbi->region;
1570
1571 DBG("region%d phys %08x virt %p size=%lu\n",
1572 i,
1573 rg->paddr,
1574 rg->vaddr,
1575 rg->size);
1576 }
1577
1578 return 0;
1579}
1580
1581static void omapfb_clear_fb(struct fb_info *fbi)
1582{
1583 const struct fb_fillrect rect = {
1584 .dx = 0,
1585 .dy = 0,
1586 .width = fbi->var.xres_virtual,
1587 .height = fbi->var.yres_virtual,
1588 .color = 0,
1589 .rop = ROP_COPY,
1590 };
1591
1592 cfb_fillrect(fbi, &rect);
1593}
1594
1595int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
1596{
1597 struct omapfb_info *ofbi = FB2OFB(fbi);
1598 struct omapfb2_device *fbdev = ofbi->fbdev;
1599 struct omapfb2_mem_region *rg = ofbi->region;
1600 unsigned long old_size = rg->size;
1601 unsigned long old_paddr = rg->paddr;
1602 int old_type = rg->type;
1603 int r;
1604
1605 if (type != OMAPFB_MEMTYPE_SDRAM)
1606 return -EINVAL;
1607
1608 size = PAGE_ALIGN(size);
1609
1610 if (old_size == size && old_type == type)
1611 return 0;
1612
1613 omapfb_free_fbmem(fbi);
1614
1615 if (size == 0) {
1616 clear_fb_info(fbi);
1617 return 0;
1618 }
1619
1620 r = omapfb_alloc_fbmem(fbi, size, 0);
1621
1622 if (r) {
1623 if (old_size)
1624 omapfb_alloc_fbmem(fbi, old_size, old_paddr);
1625
1626 if (rg->size == 0)
1627 clear_fb_info(fbi);
1628
1629 return r;
1630 }
1631
1632 if (old_size == size)
1633 return 0;
1634
1635 if (old_size == 0) {
1636 DBG("initializing fb %d\n", ofbi->id);
1637 r = omapfb_fb_init(fbdev, fbi);
1638 if (r) {
1639 DBG("omapfb_fb_init failed\n");
1640 goto err;
1641 }
1642 r = omapfb_apply_changes(fbi, 1);
1643 if (r) {
1644 DBG("omapfb_apply_changes failed\n");
1645 goto err;
1646 }
1647 } else {
1648 struct fb_var_screeninfo new_var;
1649 memcpy(&new_var, &fbi->var, sizeof(new_var));
1650 r = check_fb_var(fbi, &new_var);
1651 if (r)
1652 goto err;
1653 memcpy(&fbi->var, &new_var, sizeof(fbi->var));
1654 set_fb_fix(fbi);
1655 r = setup_vrfb_rotation(fbi);
1656 if (r)
1657 goto err;
1658 }
1659
1660 omapfb_clear_fb(fbi);
1661
1662 return 0;
1663err:
1664 omapfb_free_fbmem(fbi);
1665 clear_fb_info(fbi);
1666 return r;
1667}
1668
1669static void omapfb_auto_update_work(struct work_struct *work)
1670{
1671 struct omap_dss_device *dssdev;
1672 struct omap_dss_driver *dssdrv;
1673 struct omapfb_display_data *d;
1674 u16 w, h;
1675 unsigned int freq;
1676 struct omapfb2_device *fbdev;
1677
1678 d = container_of(work, struct omapfb_display_data,
1679 auto_update_work.work);
1680
1681 dssdev = d->dssdev;
1682 dssdrv = dssdev->driver;
1683 fbdev = d->fbdev;
1684
1685 if (!dssdrv || !dssdrv->update)
1686 return;
1687
1688 if (dssdrv->sync)
1689 dssdrv->sync(dssdev);
1690
1691 dssdrv->get_resolution(dssdev, &w, &h);
1692 dssdrv->update(dssdev, 0, 0, w, h);
1693
1694 freq = auto_update_freq;
1695 if (freq == 0)
1696 freq = 20;
1697 queue_delayed_work(fbdev->auto_update_wq,
1698 &d->auto_update_work, HZ / freq);
1699}
1700
1701void omapfb_start_auto_update(struct omapfb2_device *fbdev,
1702 struct omap_dss_device *display)
1703{
1704 struct omapfb_display_data *d;
1705
1706 if (fbdev->auto_update_wq == NULL) {
1707 struct workqueue_struct *wq;
1708
1709 wq = create_singlethread_workqueue("omapfb_auto_update");
1710
1711 if (wq == NULL) {
1712 dev_err(fbdev->dev, "Failed to create workqueue for "
1713 "auto-update\n");
1714 return;
1715 }
1716
1717 fbdev->auto_update_wq = wq;
1718 }
1719
1720 d = get_display_data(fbdev, display);
1721
1722 INIT_DELAYED_WORK(&d->auto_update_work, omapfb_auto_update_work);
1723
1724 d->auto_update_work_enabled = true;
1725
1726 omapfb_auto_update_work(&d->auto_update_work.work);
1727}
1728
1729void omapfb_stop_auto_update(struct omapfb2_device *fbdev,
1730 struct omap_dss_device *display)
1731{
1732 struct omapfb_display_data *d;
1733
1734 d = get_display_data(fbdev, display);
1735
1736 cancel_delayed_work_sync(&d->auto_update_work);
1737
1738 d->auto_update_work_enabled = false;
1739}
1740
1741
1742static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
1743{
1744 struct fb_var_screeninfo *var = &fbi->var;
1745 struct omap_dss_device *display = fb2display(fbi);
1746 struct omapfb_info *ofbi = FB2OFB(fbi);
1747 int r = 0;
1748
1749 fbi->fbops = &omapfb_ops;
1750 fbi->flags = FBINFO_FLAG_DEFAULT;
1751 fbi->pseudo_palette = fbdev->pseudo_palette;
1752
1753 if (ofbi->region->size == 0) {
1754 clear_fb_info(fbi);
1755 return 0;
1756 }
1757
1758 var->nonstd = 0;
1759 var->bits_per_pixel = 0;
1760
1761 var->rotate = def_rotate;
1762
1763 if (display) {
1764 u16 w, h;
1765 int rotation = (var->rotate + ofbi->rotation[0]) % 4;
1766
1767 display->driver->get_resolution(display, &w, &h);
1768
1769 if (rotation == FB_ROTATE_CW ||
1770 rotation == FB_ROTATE_CCW) {
1771 var->xres = h;
1772 var->yres = w;
1773 } else {
1774 var->xres = w;
1775 var->yres = h;
1776 }
1777
1778 var->xres_virtual = var->xres;
1779 var->yres_virtual = var->yres;
1780
1781 if (!var->bits_per_pixel) {
1782 switch (omapfb_get_recommended_bpp(fbdev, display)) {
1783 case 16:
1784 var->bits_per_pixel = 16;
1785 break;
1786 case 24:
1787 var->bits_per_pixel = 32;
1788 break;
1789 default:
1790 dev_err(fbdev->dev, "illegal display "
1791 "bpp\n");
1792 return -EINVAL;
1793 }
1794 }
1795 } else {
1796
1797 var->xres = 320;
1798 var->yres = 240;
1799 var->xres_virtual = var->xres;
1800 var->yres_virtual = var->yres;
1801 if (!var->bits_per_pixel)
1802 var->bits_per_pixel = 16;
1803 }
1804
1805 r = check_fb_var(fbi, var);
1806 if (r)
1807 goto err;
1808
1809 set_fb_fix(fbi);
1810 r = setup_vrfb_rotation(fbi);
1811 if (r)
1812 goto err;
1813
1814 r = fb_alloc_cmap(&fbi->cmap, 256, 0);
1815 if (r)
1816 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1817
1818err:
1819 return r;
1820}
1821
1822static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
1823{
1824 fb_dealloc_cmap(&fbi->cmap);
1825}
1826
1827
1828static void omapfb_free_resources(struct omapfb2_device *fbdev)
1829{
1830 int i;
1831
1832 DBG("free_resources\n");
1833
1834 if (fbdev == NULL)
1835 return;
1836
1837 for (i = 0; i < fbdev->num_overlays; i++) {
1838 struct omap_overlay *ovl = fbdev->overlays[i];
1839
1840 ovl->disable(ovl);
1841
1842 if (ovl->manager)
1843 ovl->unset_manager(ovl);
1844 }
1845
1846 for (i = 0; i < fbdev->num_fbs; i++)
1847 unregister_framebuffer(fbdev->fbs[i]);
1848
1849
1850 omapfb_free_all_fbmem(fbdev);
1851
1852 for (i = 0; i < fbdev->num_fbs; i++) {
1853 fbinfo_cleanup(fbdev, fbdev->fbs[i]);
1854 framebuffer_release(fbdev->fbs[i]);
1855 }
1856
1857 for (i = 0; i < fbdev->num_displays; i++) {
1858 struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
1859
1860 if (fbdev->displays[i].auto_update_work_enabled)
1861 omapfb_stop_auto_update(fbdev, dssdev);
1862
1863 if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)
1864 dssdev->driver->disable(dssdev);
1865
1866 dssdev->driver->disconnect(dssdev);
1867
1868 omap_dss_put_device(dssdev);
1869 }
1870
1871 if (fbdev->auto_update_wq != NULL) {
1872 flush_workqueue(fbdev->auto_update_wq);
1873 destroy_workqueue(fbdev->auto_update_wq);
1874 fbdev->auto_update_wq = NULL;
1875 }
1876
1877 dev_set_drvdata(fbdev->dev, NULL);
1878}
1879
1880static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
1881{
1882 int r, i;
1883
1884 fbdev->num_fbs = 0;
1885
1886 DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS);
1887
1888
1889 for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) {
1890 struct fb_info *fbi;
1891 struct omapfb_info *ofbi;
1892
1893 fbi = framebuffer_alloc(sizeof(struct omapfb_info),
1894 fbdev->dev);
1895
1896 if (fbi == NULL) {
1897 dev_err(fbdev->dev,
1898 "unable to allocate memory for plane info\n");
1899 return -ENOMEM;
1900 }
1901
1902 clear_fb_info(fbi);
1903
1904 fbdev->fbs[i] = fbi;
1905
1906 ofbi = FB2OFB(fbi);
1907 ofbi->fbdev = fbdev;
1908 ofbi->id = i;
1909
1910 ofbi->region = &fbdev->regions[i];
1911 ofbi->region->id = i;
1912 init_rwsem(&ofbi->region->lock);
1913
1914
1915 ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
1916 OMAP_DSS_ROT_DMA;
1917 ofbi->mirror = def_mirror;
1918
1919 fbdev->num_fbs++;
1920 }
1921
1922 DBG("fb_infos allocated\n");
1923
1924
1925 for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) {
1926 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1927
1928 ofbi->overlays[0] = fbdev->overlays[i];
1929 ofbi->num_overlays = 1;
1930 }
1931
1932
1933 r = omapfb_allocate_all_fbs(fbdev);
1934 if (r) {
1935 dev_err(fbdev->dev, "failed to allocate fbmem\n");
1936 return r;
1937 }
1938
1939 DBG("fbmems allocated\n");
1940
1941
1942 for (i = 0; i < fbdev->num_fbs; i++) {
1943 struct fb_info *fbi = fbdev->fbs[i];
1944 struct omapfb_info *ofbi = FB2OFB(fbi);
1945
1946 omapfb_get_mem_region(ofbi->region);
1947 r = omapfb_fb_init(fbdev, fbi);
1948 omapfb_put_mem_region(ofbi->region);
1949
1950 if (r) {
1951 dev_err(fbdev->dev, "failed to setup fb_info\n");
1952 return r;
1953 }
1954 }
1955
1956 for (i = 0; i < fbdev->num_fbs; i++) {
1957 struct fb_info *fbi = fbdev->fbs[i];
1958 struct omapfb_info *ofbi = FB2OFB(fbi);
1959
1960 if (ofbi->region->size == 0)
1961 continue;
1962
1963 omapfb_clear_fb(fbi);
1964 }
1965
1966 DBG("fb_infos initialized\n");
1967
1968 for (i = 0; i < fbdev->num_fbs; i++) {
1969 r = register_framebuffer(fbdev->fbs[i]);
1970 if (r != 0) {
1971 dev_err(fbdev->dev,
1972 "registering framebuffer %d failed\n", i);
1973 return r;
1974 }
1975 }
1976
1977 DBG("framebuffers registered\n");
1978
1979 for (i = 0; i < fbdev->num_fbs; i++) {
1980 struct fb_info *fbi = fbdev->fbs[i];
1981 struct omapfb_info *ofbi = FB2OFB(fbi);
1982
1983 omapfb_get_mem_region(ofbi->region);
1984 r = omapfb_apply_changes(fbi, 1);
1985 omapfb_put_mem_region(ofbi->region);
1986
1987 if (r) {
1988 dev_err(fbdev->dev, "failed to change mode\n");
1989 return r;
1990 }
1991 }
1992
1993
1994 if (fbdev->num_fbs > 0) {
1995 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]);
1996
1997 if (ofbi->num_overlays > 0) {
1998 struct omap_overlay *ovl = ofbi->overlays[0];
1999
2000 ovl->manager->apply(ovl->manager);
2001
2002 r = omapfb_overlay_enable(ovl, 1);
2003
2004 if (r) {
2005 dev_err(fbdev->dev,
2006 "failed to enable overlay\n");
2007 return r;
2008 }
2009 }
2010 }
2011
2012 DBG("create_framebuffers done\n");
2013
2014 return 0;
2015}
2016
2017static int omapfb_mode_to_timings(const char *mode_str,
2018 struct omap_dss_device *display,
2019 struct omap_video_timings *timings, u8 *bpp)
2020{
2021 struct fb_info *fbi;
2022 struct fb_var_screeninfo *var;
2023 struct fb_ops *fbops;
2024 int r;
2025
2026#ifdef CONFIG_OMAP2_DSS_VENC
2027 if (strcmp(mode_str, "pal") == 0) {
2028 *timings = omap_dss_pal_timings;
2029 *bpp = 24;
2030 return 0;
2031 } else if (strcmp(mode_str, "ntsc") == 0) {
2032 *timings = omap_dss_ntsc_timings;
2033 *bpp = 24;
2034 return 0;
2035 }
2036#endif
2037
2038
2039
2040
2041 *bpp = 0;
2042 fbi = NULL;
2043 var = NULL;
2044 fbops = NULL;
2045
2046 fbi = kzalloc(sizeof(*fbi), GFP_KERNEL);
2047 if (fbi == NULL) {
2048 r = -ENOMEM;
2049 goto err;
2050 }
2051
2052 var = kzalloc(sizeof(*var), GFP_KERNEL);
2053 if (var == NULL) {
2054 r = -ENOMEM;
2055 goto err;
2056 }
2057
2058 fbops = kzalloc(sizeof(*fbops), GFP_KERNEL);
2059 if (fbops == NULL) {
2060 r = -ENOMEM;
2061 goto err;
2062 }
2063
2064 fbi->fbops = fbops;
2065
2066 r = fb_find_mode(var, fbi, mode_str, NULL, 0, NULL, 24);
2067 if (r == 0) {
2068 r = -EINVAL;
2069 goto err;
2070 }
2071
2072 if (display->driver->get_timings) {
2073 display->driver->get_timings(display, timings);
2074 } else {
2075 timings->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
2076 timings->de_level = OMAPDSS_SIG_ACTIVE_HIGH;
2077 timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE;
2078 }
2079
2080 timings->pixelclock = PICOS2KHZ(var->pixclock) * 1000;
2081 timings->hbp = var->left_margin;
2082 timings->hfp = var->right_margin;
2083 timings->vbp = var->upper_margin;
2084 timings->vfp = var->lower_margin;
2085 timings->hsw = var->hsync_len;
2086 timings->vsw = var->vsync_len;
2087 timings->x_res = var->xres;
2088 timings->y_res = var->yres;
2089 timings->hsync_level = var->sync & FB_SYNC_HOR_HIGH_ACT ?
2090 OMAPDSS_SIG_ACTIVE_HIGH :
2091 OMAPDSS_SIG_ACTIVE_LOW;
2092 timings->vsync_level = var->sync & FB_SYNC_VERT_HIGH_ACT ?
2093 OMAPDSS_SIG_ACTIVE_HIGH :
2094 OMAPDSS_SIG_ACTIVE_LOW;
2095 timings->interlace = var->vmode & FB_VMODE_INTERLACED;
2096
2097 switch (var->bits_per_pixel) {
2098 case 16:
2099 *bpp = 16;
2100 break;
2101 case 24:
2102 case 32:
2103 default:
2104 *bpp = 24;
2105 break;
2106 }
2107
2108 r = 0;
2109
2110err:
2111 kfree(fbi);
2112 kfree(var);
2113 kfree(fbops);
2114
2115 return r;
2116}
2117
2118static int omapfb_set_def_mode(struct omapfb2_device *fbdev,
2119 struct omap_dss_device *display, char *mode_str)
2120{
2121 int r;
2122 u8 bpp;
2123 struct omap_video_timings timings, temp_timings;
2124 struct omapfb_display_data *d;
2125
2126 r = omapfb_mode_to_timings(mode_str, display, &timings, &bpp);
2127 if (r)
2128 return r;
2129
2130 d = get_display_data(fbdev, display);
2131 d->bpp_override = bpp;
2132
2133 if (display->driver->check_timings) {
2134 r = display->driver->check_timings(display, &timings);
2135 if (r)
2136 return r;
2137 } else {
2138
2139 if (display->driver->get_timings) {
2140 display->driver->get_timings(display, &temp_timings);
2141
2142 if (temp_timings.x_res != timings.x_res ||
2143 temp_timings.y_res != timings.y_res)
2144 return -EINVAL;
2145 }
2146 }
2147
2148 if (display->driver->set_timings)
2149 display->driver->set_timings(display, &timings);
2150
2151 return 0;
2152}
2153
2154static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev,
2155 struct omap_dss_device *dssdev)
2156{
2157 struct omapfb_display_data *d;
2158
2159 BUG_ON(dssdev->driver->get_recommended_bpp == NULL);
2160
2161 d = get_display_data(fbdev, dssdev);
2162
2163 if (d->bpp_override != 0)
2164 return d->bpp_override;
2165
2166 return dssdev->driver->get_recommended_bpp(dssdev);
2167}
2168
2169static int omapfb_parse_def_modes(struct omapfb2_device *fbdev)
2170{
2171 char *str, *options, *this_opt;
2172 int r = 0;
2173
2174 str = kstrdup(def_mode, GFP_KERNEL);
2175 if (!str)
2176 return -ENOMEM;
2177 options = str;
2178
2179 while (!r && (this_opt = strsep(&options, ",")) != NULL) {
2180 char *p, *display_str, *mode_str;
2181 struct omap_dss_device *display;
2182 int i;
2183
2184 p = strchr(this_opt, ':');
2185 if (!p) {
2186 r = -EINVAL;
2187 break;
2188 }
2189
2190 *p = 0;
2191 display_str = this_opt;
2192 mode_str = p + 1;
2193
2194 display = NULL;
2195 for (i = 0; i < fbdev->num_displays; ++i) {
2196 if (strcmp(fbdev->displays[i].dssdev->name,
2197 display_str) == 0) {
2198 display = fbdev->displays[i].dssdev;
2199 break;
2200 }
2201 }
2202
2203 if (!display) {
2204 r = -EINVAL;
2205 break;
2206 }
2207
2208 r = omapfb_set_def_mode(fbdev, display, mode_str);
2209 if (r)
2210 break;
2211 }
2212
2213 kfree(str);
2214
2215 return r;
2216}
2217
2218static void fb_videomode_to_omap_timings(struct fb_videomode *m,
2219 struct omap_dss_device *display,
2220 struct omap_video_timings *t)
2221{
2222 if (display->driver->get_timings) {
2223 display->driver->get_timings(display, t);
2224 } else {
2225 t->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
2226 t->de_level = OMAPDSS_SIG_ACTIVE_HIGH;
2227 t->sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE;
2228 }
2229
2230 t->x_res = m->xres;
2231 t->y_res = m->yres;
2232 t->pixelclock = PICOS2KHZ(m->pixclock) * 1000;
2233 t->hsw = m->hsync_len;
2234 t->hfp = m->right_margin;
2235 t->hbp = m->left_margin;
2236 t->vsw = m->vsync_len;
2237 t->vfp = m->lower_margin;
2238 t->vbp = m->upper_margin;
2239 t->hsync_level = m->sync & FB_SYNC_HOR_HIGH_ACT ?
2240 OMAPDSS_SIG_ACTIVE_HIGH :
2241 OMAPDSS_SIG_ACTIVE_LOW;
2242 t->vsync_level = m->sync & FB_SYNC_VERT_HIGH_ACT ?
2243 OMAPDSS_SIG_ACTIVE_HIGH :
2244 OMAPDSS_SIG_ACTIVE_LOW;
2245 t->interlace = m->vmode & FB_VMODE_INTERLACED;
2246}
2247
2248static int omapfb_find_best_mode(struct omap_dss_device *display,
2249 struct omap_video_timings *timings)
2250{
2251 struct fb_monspecs *specs;
2252 u8 *edid;
2253 int r, i, best_idx, len;
2254
2255 if (!display->driver->read_edid)
2256 return -ENODEV;
2257
2258 len = 0x80 * 2;
2259 edid = kmalloc(len, GFP_KERNEL);
2260 if (edid == NULL)
2261 return -ENOMEM;
2262
2263 r = display->driver->read_edid(display, edid, len);
2264 if (r < 0)
2265 goto err1;
2266
2267 specs = kzalloc(sizeof(*specs), GFP_KERNEL);
2268 if (specs == NULL) {
2269 r = -ENOMEM;
2270 goto err1;
2271 }
2272
2273 fb_edid_to_monspecs(edid, specs);
2274
2275 best_idx = -1;
2276
2277 for (i = 0; i < specs->modedb_len; ++i) {
2278 struct fb_videomode *m;
2279 struct omap_video_timings t;
2280
2281 m = &specs->modedb[i];
2282
2283 if (m->pixclock == 0)
2284 continue;
2285
2286
2287 if (m->xres == 2880 || m->xres == 1440)
2288 continue;
2289
2290 if (m->vmode & FB_VMODE_INTERLACED ||
2291 m->vmode & FB_VMODE_DOUBLE)
2292 continue;
2293
2294 fb_videomode_to_omap_timings(m, display, &t);
2295
2296 r = display->driver->check_timings(display, &t);
2297 if (r == 0) {
2298 best_idx = i;
2299 break;
2300 }
2301 }
2302
2303 if (best_idx == -1) {
2304 r = -ENOENT;
2305 goto err2;
2306 }
2307
2308 fb_videomode_to_omap_timings(&specs->modedb[best_idx], display,
2309 timings);
2310
2311 r = 0;
2312
2313err2:
2314 fb_destroy_modedb(specs->modedb);
2315 kfree(specs);
2316err1:
2317 kfree(edid);
2318
2319 return r;
2320}
2321
2322static int omapfb_init_display(struct omapfb2_device *fbdev,
2323 struct omap_dss_device *dssdev)
2324{
2325 struct omap_dss_driver *dssdrv = dssdev->driver;
2326 struct omapfb_display_data *d;
2327 int r;
2328
2329 r = dssdrv->enable(dssdev);
2330 if (r) {
2331 dev_warn(fbdev->dev, "Failed to enable display '%s'\n",
2332 dssdev->name);
2333 return r;
2334 }
2335
2336 d = get_display_data(fbdev, dssdev);
2337
2338 d->fbdev = fbdev;
2339
2340 if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
2341 u16 w, h;
2342
2343 if (auto_update) {
2344 omapfb_start_auto_update(fbdev, dssdev);
2345 d->update_mode = OMAPFB_AUTO_UPDATE;
2346 } else {
2347 d->update_mode = OMAPFB_MANUAL_UPDATE;
2348 }
2349
2350 if (dssdrv->enable_te) {
2351 r = dssdrv->enable_te(dssdev, 1);
2352 if (r) {
2353 dev_err(fbdev->dev, "Failed to set TE\n");
2354 return r;
2355 }
2356 }
2357
2358 dssdrv->get_resolution(dssdev, &w, &h);
2359 r = dssdrv->update(dssdev, 0, 0, w, h);
2360 if (r) {
2361 dev_err(fbdev->dev,
2362 "Failed to update display\n");
2363 return r;
2364 }
2365 } else {
2366 d->update_mode = OMAPFB_AUTO_UPDATE;
2367 }
2368
2369 return 0;
2370}
2371
2372static int omapfb_init_connections(struct omapfb2_device *fbdev,
2373 struct omap_dss_device *def_dssdev)
2374{
2375 int i, r;
2376 struct omap_overlay_manager *mgr;
2377
2378 r = def_dssdev->driver->connect(def_dssdev);
2379 if (r) {
2380 dev_err(fbdev->dev, "failed to connect default display\n");
2381 return r;
2382 }
2383
2384 for (i = 0; i < fbdev->num_displays; ++i) {
2385 struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
2386
2387 if (dssdev == def_dssdev)
2388 continue;
2389
2390
2391
2392
2393
2394 dssdev->driver->connect(dssdev);
2395 }
2396
2397 mgr = omapdss_find_mgr_from_display(def_dssdev);
2398
2399 if (!mgr) {
2400 dev_err(fbdev->dev, "no ovl manager for the default display\n");
2401 return -EINVAL;
2402 }
2403
2404 for (i = 0; i < fbdev->num_overlays; i++) {
2405 struct omap_overlay *ovl = fbdev->overlays[i];
2406
2407 if (ovl->manager)
2408 ovl->unset_manager(ovl);
2409
2410 r = ovl->set_manager(ovl, mgr);
2411 if (r)
2412 dev_warn(fbdev->dev,
2413 "failed to connect overlay %s to manager %s\n",
2414 ovl->name, mgr->name);
2415 }
2416
2417 return 0;
2418}
2419
2420static struct omap_dss_device *
2421omapfb_find_default_display(struct omapfb2_device *fbdev)
2422{
2423 const char *def_name;
2424 int i;
2425
2426
2427
2428
2429
2430
2431 def_name = omapdss_get_default_display_name();
2432
2433 if (def_name) {
2434 for (i = 0; i < fbdev->num_displays; ++i) {
2435 struct omap_dss_device *dssdev;
2436
2437 dssdev = fbdev->displays[i].dssdev;
2438
2439 if (dssdev->name && strcmp(def_name, dssdev->name) == 0)
2440 return dssdev;
2441
2442 if (strcmp(def_name, dssdev->alias) == 0)
2443 return dssdev;
2444 }
2445
2446
2447 return NULL;
2448 }
2449
2450
2451 for (i = 0; i < fbdev->num_displays; ++i) {
2452 struct omap_dss_device *dssdev;
2453 int id;
2454
2455 dssdev = fbdev->displays[i].dssdev;
2456
2457 if (dssdev->dev->of_node == NULL)
2458 continue;
2459
2460 id = of_alias_get_id(dssdev->dev->of_node, "display");
2461 if (id == 0)
2462 return dssdev;
2463 }
2464
2465
2466 return fbdev->displays[0].dssdev;
2467}
2468
2469static int omapfb_probe(struct platform_device *pdev)
2470{
2471 struct omapfb2_device *fbdev = NULL;
2472 int r = 0;
2473 int i;
2474 struct omap_dss_device *def_display;
2475 struct omap_dss_device *dssdev;
2476
2477 DBG("omapfb_probe\n");
2478
2479 if (omapdss_is_initialized() == false)
2480 return -EPROBE_DEFER;
2481
2482 if (pdev->num_resources != 0) {
2483 dev_err(&pdev->dev, "probed for an unknown device\n");
2484 r = -ENODEV;
2485 goto err0;
2486 }
2487
2488 fbdev = devm_kzalloc(&pdev->dev, sizeof(struct omapfb2_device),
2489 GFP_KERNEL);
2490 if (fbdev == NULL) {
2491 r = -ENOMEM;
2492 goto err0;
2493 }
2494
2495 if (def_vrfb && !omap_vrfb_supported()) {
2496 def_vrfb = 0;
2497 dev_warn(&pdev->dev, "VRFB is not supported on this hardware, "
2498 "ignoring the module parameter vrfb=y\n");
2499 }
2500
2501 r = omapdss_compat_init();
2502 if (r)
2503 goto err0;
2504
2505 mutex_init(&fbdev->mtx);
2506
2507 fbdev->dev = &pdev->dev;
2508 platform_set_drvdata(pdev, fbdev);
2509
2510 fbdev->num_displays = 0;
2511 dssdev = NULL;
2512 for_each_dss_dev(dssdev) {
2513 struct omapfb_display_data *d;
2514
2515 omap_dss_get_device(dssdev);
2516
2517 if (!dssdev->driver) {
2518 dev_warn(&pdev->dev, "no driver for display: %s\n",
2519 dssdev->name);
2520 omap_dss_put_device(dssdev);
2521 continue;
2522 }
2523
2524 d = &fbdev->displays[fbdev->num_displays++];
2525 d->dssdev = dssdev;
2526 if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
2527 d->update_mode = OMAPFB_MANUAL_UPDATE;
2528 else
2529 d->update_mode = OMAPFB_AUTO_UPDATE;
2530 }
2531
2532 if (fbdev->num_displays == 0) {
2533 dev_err(&pdev->dev, "no displays\n");
2534 r = -EPROBE_DEFER;
2535 goto cleanup;
2536 }
2537
2538 fbdev->num_overlays = omap_dss_get_num_overlays();
2539 for (i = 0; i < fbdev->num_overlays; i++)
2540 fbdev->overlays[i] = omap_dss_get_overlay(i);
2541
2542 fbdev->num_managers = omap_dss_get_num_overlay_managers();
2543 for (i = 0; i < fbdev->num_managers; i++)
2544 fbdev->managers[i] = omap_dss_get_overlay_manager(i);
2545
2546 def_display = omapfb_find_default_display(fbdev);
2547 if (def_display == NULL) {
2548 dev_err(fbdev->dev, "failed to find default display\n");
2549 r = -EPROBE_DEFER;
2550 goto cleanup;
2551 }
2552
2553 r = omapfb_init_connections(fbdev, def_display);
2554 if (r) {
2555 dev_err(fbdev->dev, "failed to init overlay connections\n");
2556 goto cleanup;
2557 }
2558
2559 if (def_mode && strlen(def_mode) > 0) {
2560 if (omapfb_parse_def_modes(fbdev))
2561 dev_warn(&pdev->dev, "cannot parse default modes\n");
2562 } else if (def_display && def_display->driver->set_timings &&
2563 def_display->driver->check_timings) {
2564 struct omap_video_timings t;
2565
2566 r = omapfb_find_best_mode(def_display, &t);
2567
2568 if (r == 0)
2569 def_display->driver->set_timings(def_display, &t);
2570 }
2571
2572 r = omapfb_create_framebuffers(fbdev);
2573 if (r)
2574 goto cleanup;
2575
2576 for (i = 0; i < fbdev->num_managers; i++) {
2577 struct omap_overlay_manager *mgr;
2578 mgr = fbdev->managers[i];
2579 r = mgr->apply(mgr);
2580 if (r)
2581 dev_warn(fbdev->dev, "failed to apply dispc config\n");
2582 }
2583
2584 DBG("mgr->apply'ed\n");
2585
2586 if (def_display) {
2587 r = omapfb_init_display(fbdev, def_display);
2588 if (r) {
2589 dev_err(fbdev->dev,
2590 "failed to initialize default "
2591 "display\n");
2592 goto cleanup;
2593 }
2594 }
2595
2596 DBG("create sysfs for fbs\n");
2597 r = omapfb_create_sysfs(fbdev);
2598 if (r) {
2599 dev_err(fbdev->dev, "failed to create sysfs entries\n");
2600 goto cleanup;
2601 }
2602
2603 if (def_display) {
2604 u16 w, h;
2605
2606 def_display->driver->get_resolution(def_display, &w, &h);
2607
2608 dev_info(fbdev->dev, "using display '%s' mode %dx%d\n",
2609 def_display->name, w, h);
2610 }
2611
2612 return 0;
2613
2614cleanup:
2615 omapfb_free_resources(fbdev);
2616 omapdss_compat_uninit();
2617err0:
2618 dev_err(&pdev->dev, "failed to setup omapfb\n");
2619 return r;
2620}
2621
2622static int omapfb_remove(struct platform_device *pdev)
2623{
2624 struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
2625
2626
2627
2628 omapfb_remove_sysfs(fbdev);
2629
2630 omapfb_free_resources(fbdev);
2631
2632 omapdss_compat_uninit();
2633
2634 return 0;
2635}
2636
2637static struct platform_driver omapfb_driver = {
2638 .probe = omapfb_probe,
2639 .remove = omapfb_remove,
2640 .driver = {
2641 .name = "omapfb",
2642 },
2643};
2644
2645module_param_named(mode, def_mode, charp, 0);
2646module_param_named(vram, def_vram, charp, 0);
2647module_param_named(rotate, def_rotate, int, 0);
2648module_param_named(vrfb, def_vrfb, bool, 0);
2649module_param_named(mirror, def_mirror, bool, 0);
2650
2651module_platform_driver(omapfb_driver);
2652
2653MODULE_ALIAS("platform:omapfb");
2654MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
2655MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
2656MODULE_LICENSE("GPL v2");
2657
