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12#include <linux/module.h>
13#include <linux/delay.h>
14#include <linux/slab.h>
15#include <linux/fb.h>
16#include <linux/dma-mapping.h>
17#include <linux/vmalloc.h>
18#include <linux/device.h>
19#include <linux/platform_device.h>
20#include <linux/omapfb.h>
21
22#include <video/omapfb_dss.h>
23#include <video/omapvrfb.h>
24
25#include "omapfb.h"
26
27#define MODULE_NAME "omapfb"
28
29#define OMAPFB_PLANE_XRES_MIN 8
30#define OMAPFB_PLANE_YRES_MIN 8
31
32static char *def_mode;
33static char *def_vram;
34static bool def_vrfb;
35static int def_rotate;
36static bool def_mirror;
37static bool auto_update;
38static unsigned int auto_update_freq;
39module_param(auto_update, bool, 0);
40module_param(auto_update_freq, uint, 0644);
41
42#ifdef DEBUG
43bool omapfb_debug;
44module_param_named(debug, omapfb_debug, bool, 0644);
45static bool omapfb_test_pattern;
46module_param_named(test, omapfb_test_pattern, bool, 0644);
47#endif
48
49static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi);
50static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev,
51 struct omap_dss_device *dssdev);
52
53#ifdef DEBUG
54static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color)
55{
56 struct fb_var_screeninfo *var = &fbi->var;
57 struct fb_fix_screeninfo *fix = &fbi->fix;
58 void __iomem *addr = fbi->screen_base;
59 const unsigned bytespp = var->bits_per_pixel >> 3;
60 const unsigned line_len = fix->line_length / bytespp;
61
62 int r = (color >> 16) & 0xff;
63 int g = (color >> 8) & 0xff;
64 int b = (color >> 0) & 0xff;
65
66 if (var->bits_per_pixel == 16) {
67 u16 __iomem *p = (u16 __iomem *)addr;
68 p += y * line_len + x;
69
70 r = r * 32 / 256;
71 g = g * 64 / 256;
72 b = b * 32 / 256;
73
74 __raw_writew((r << 11) | (g << 5) | (b << 0), p);
75 } else if (var->bits_per_pixel == 24) {
76 u8 __iomem *p = (u8 __iomem *)addr;
77 p += (y * line_len + x) * 3;
78
79 __raw_writeb(b, p + 0);
80 __raw_writeb(g, p + 1);
81 __raw_writeb(r, p + 2);
82 } else if (var->bits_per_pixel == 32) {
83 u32 __iomem *p = (u32 __iomem *)addr;
84 p += y * line_len + x;
85 __raw_writel(color, p);
86 }
87}
88
89static void fill_fb(struct fb_info *fbi)
90{
91 struct fb_var_screeninfo *var = &fbi->var;
92 const short w = var->xres_virtual;
93 const short h = var->yres_virtual;
94 void __iomem *addr = fbi->screen_base;
95 int y, x;
96
97 if (!addr)
98 return;
99
100 DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length);
101
102 for (y = 0; y < h; y++) {
103 for (x = 0; x < w; x++) {
104 if (x < 20 && y < 20)
105 draw_pixel(fbi, x, y, 0xffffff);
106 else if (x < 20 && (y > 20 && y < h - 20))
107 draw_pixel(fbi, x, y, 0xff);
108 else if (y < 20 && (x > 20 && x < w - 20))
109 draw_pixel(fbi, x, y, 0xff00);
110 else if (x > w - 20 && (y > 20 && y < h - 20))
111 draw_pixel(fbi, x, y, 0xff0000);
112 else if (y > h - 20 && (x > 20 && x < w - 20))
113 draw_pixel(fbi, x, y, 0xffff00);
114 else if (x == 20 || x == w - 20 ||
115 y == 20 || y == h - 20)
116 draw_pixel(fbi, x, y, 0xffffff);
117 else if (x == y || w - x == h - y)
118 draw_pixel(fbi, x, y, 0xff00ff);
119 else if (w - x == y || x == h - y)
120 draw_pixel(fbi, x, y, 0x00ffff);
121 else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) {
122 int t = x * 3 / w;
123 unsigned r = 0, g = 0, b = 0;
124 unsigned c;
125 if (var->bits_per_pixel == 16) {
126 if (t == 0)
127 b = (y % 32) * 256 / 32;
128 else if (t == 1)
129 g = (y % 64) * 256 / 64;
130 else if (t == 2)
131 r = (y % 32) * 256 / 32;
132 } else {
133 if (t == 0)
134 b = (y % 256);
135 else if (t == 1)
136 g = (y % 256);
137 else if (t == 2)
138 r = (y % 256);
139 }
140 c = (r << 16) | (g << 8) | (b << 0);
141 draw_pixel(fbi, x, y, c);
142 } else {
143 draw_pixel(fbi, x, y, 0);
144 }
145 }
146 }
147}
148#endif
149
150static unsigned omapfb_get_vrfb_offset(const struct omapfb_info *ofbi, int rot)
151{
152 const struct vrfb *vrfb = &ofbi->region->vrfb;
153 unsigned offset;
154
155 switch (rot) {
156 case FB_ROTATE_UR:
157 offset = 0;
158 break;
159 case FB_ROTATE_CW:
160 offset = vrfb->yoffset;
161 break;
162 case FB_ROTATE_UD:
163 offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset;
164 break;
165 case FB_ROTATE_CCW:
166 offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN;
167 break;
168 default:
169 BUG();
170 return 0;
171 }
172
173 offset *= vrfb->bytespp;
174
175 return offset;
176}
177
178static u32 omapfb_get_region_rot_paddr(const struct omapfb_info *ofbi, int rot)
179{
180 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
181 return ofbi->region->vrfb.paddr[rot]
182 + omapfb_get_vrfb_offset(ofbi, rot);
183 } else {
184 return ofbi->region->paddr;
185 }
186}
187
188static u32 omapfb_get_region_paddr(const struct omapfb_info *ofbi)
189{
190 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
191 return ofbi->region->vrfb.paddr[0];
192 else
193 return ofbi->region->paddr;
194}
195
196static void __iomem *omapfb_get_region_vaddr(const struct omapfb_info *ofbi)
197{
198 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
199 return ofbi->region->vrfb.vaddr[0];
200 else
201 return ofbi->region->vaddr;
202}
203
204static struct omapfb_colormode omapfb_colormodes[] = {
205 {
206 .dssmode = OMAP_DSS_COLOR_UYVY,
207 .bits_per_pixel = 16,
208 .nonstd = OMAPFB_COLOR_YUV422,
209 }, {
210 .dssmode = OMAP_DSS_COLOR_YUV2,
211 .bits_per_pixel = 16,
212 .nonstd = OMAPFB_COLOR_YUY422,
213 }, {
214 .dssmode = OMAP_DSS_COLOR_ARGB16,
215 .bits_per_pixel = 16,
216 .red = { .length = 4, .offset = 8, .msb_right = 0 },
217 .green = { .length = 4, .offset = 4, .msb_right = 0 },
218 .blue = { .length = 4, .offset = 0, .msb_right = 0 },
219 .transp = { .length = 4, .offset = 12, .msb_right = 0 },
220 }, {
221 .dssmode = OMAP_DSS_COLOR_RGB16,
222 .bits_per_pixel = 16,
223 .red = { .length = 5, .offset = 11, .msb_right = 0 },
224 .green = { .length = 6, .offset = 5, .msb_right = 0 },
225 .blue = { .length = 5, .offset = 0, .msb_right = 0 },
226 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
227 }, {
228 .dssmode = OMAP_DSS_COLOR_RGB24P,
229 .bits_per_pixel = 24,
230 .red = { .length = 8, .offset = 16, .msb_right = 0 },
231 .green = { .length = 8, .offset = 8, .msb_right = 0 },
232 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
233 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
234 }, {
235 .dssmode = OMAP_DSS_COLOR_RGB24U,
236 .bits_per_pixel = 32,
237 .red = { .length = 8, .offset = 16, .msb_right = 0 },
238 .green = { .length = 8, .offset = 8, .msb_right = 0 },
239 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
240 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
241 }, {
242 .dssmode = OMAP_DSS_COLOR_ARGB32,
243 .bits_per_pixel = 32,
244 .red = { .length = 8, .offset = 16, .msb_right = 0 },
245 .green = { .length = 8, .offset = 8, .msb_right = 0 },
246 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
247 .transp = { .length = 8, .offset = 24, .msb_right = 0 },
248 }, {
249 .dssmode = OMAP_DSS_COLOR_RGBA32,
250 .bits_per_pixel = 32,
251 .red = { .length = 8, .offset = 24, .msb_right = 0 },
252 .green = { .length = 8, .offset = 16, .msb_right = 0 },
253 .blue = { .length = 8, .offset = 8, .msb_right = 0 },
254 .transp = { .length = 8, .offset = 0, .msb_right = 0 },
255 }, {
256 .dssmode = OMAP_DSS_COLOR_RGBX32,
257 .bits_per_pixel = 32,
258 .red = { .length = 8, .offset = 24, .msb_right = 0 },
259 .green = { .length = 8, .offset = 16, .msb_right = 0 },
260 .blue = { .length = 8, .offset = 8, .msb_right = 0 },
261 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
262 },
263};
264
265static bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2)
266{
267 return f1->length == f2->length &&
268 f1->offset == f2->offset &&
269 f1->msb_right == f2->msb_right;
270}
271
272static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
273 struct omapfb_colormode *color)
274{
275 if (var->bits_per_pixel == 0 ||
276 var->red.length == 0 ||
277 var->blue.length == 0 ||
278 var->green.length == 0)
279 return false;
280
281 return var->bits_per_pixel == color->bits_per_pixel &&
282 cmp_component(&var->red, &color->red) &&
283 cmp_component(&var->green, &color->green) &&
284 cmp_component(&var->blue, &color->blue) &&
285 cmp_component(&var->transp, &color->transp);
286}
287
288static void assign_colormode_to_var(struct fb_var_screeninfo *var,
289 struct omapfb_colormode *color)
290{
291 var->bits_per_pixel = color->bits_per_pixel;
292 var->nonstd = color->nonstd;
293 var->red = color->red;
294 var->green = color->green;
295 var->blue = color->blue;
296 var->transp = color->transp;
297}
298
299static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var,
300 enum omap_color_mode *mode)
301{
302 enum omap_color_mode dssmode;
303 int i;
304
305
306 if (var->nonstd) {
307 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
308 struct omapfb_colormode *m = &omapfb_colormodes[i];
309 if (var->nonstd == m->nonstd) {
310 assign_colormode_to_var(var, m);
311 *mode = m->dssmode;
312 return 0;
313 }
314 }
315
316 return -EINVAL;
317 }
318
319
320 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
321 struct omapfb_colormode *m = &omapfb_colormodes[i];
322 if (cmp_var_to_colormode(var, m)) {
323 assign_colormode_to_var(var, m);
324 *mode = m->dssmode;
325 return 0;
326 }
327 }
328
329
330
331 switch (var->bits_per_pixel) {
332 case 1:
333 dssmode = OMAP_DSS_COLOR_CLUT1;
334 break;
335 case 2:
336 dssmode = OMAP_DSS_COLOR_CLUT2;
337 break;
338 case 4:
339 dssmode = OMAP_DSS_COLOR_CLUT4;
340 break;
341 case 8:
342 dssmode = OMAP_DSS_COLOR_CLUT8;
343 break;
344 case 12:
345 dssmode = OMAP_DSS_COLOR_RGB12U;
346 break;
347 case 16:
348 dssmode = OMAP_DSS_COLOR_RGB16;
349 break;
350 case 24:
351 dssmode = OMAP_DSS_COLOR_RGB24P;
352 break;
353 case 32:
354 dssmode = OMAP_DSS_COLOR_RGB24U;
355 break;
356 default:
357 return -EINVAL;
358 }
359
360 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
361 struct omapfb_colormode *m = &omapfb_colormodes[i];
362 if (dssmode == m->dssmode) {
363 assign_colormode_to_var(var, m);
364 *mode = m->dssmode;
365 return 0;
366 }
367 }
368
369 return -EINVAL;
370}
371
372static int check_fb_res_bounds(struct fb_var_screeninfo *var)
373{
374 int xres_min = OMAPFB_PLANE_XRES_MIN;
375 int xres_max = 2048;
376 int yres_min = OMAPFB_PLANE_YRES_MIN;
377 int yres_max = 2048;
378
379
380 if (var->xres_virtual == 0)
381 var->xres_virtual = var->xres;
382
383 if (var->yres_virtual == 0)
384 var->yres_virtual = var->yres;
385
386 if (var->xres_virtual < xres_min || var->yres_virtual < yres_min)
387 return -EINVAL;
388
389 if (var->xres < xres_min)
390 var->xres = xres_min;
391 if (var->yres < yres_min)
392 var->yres = yres_min;
393 if (var->xres > xres_max)
394 var->xres = xres_max;
395 if (var->yres > yres_max)
396 var->yres = yres_max;
397
398 if (var->xres > var->xres_virtual)
399 var->xres = var->xres_virtual;
400 if (var->yres > var->yres_virtual)
401 var->yres = var->yres_virtual;
402
403 return 0;
404}
405
406static void shrink_height(unsigned long max_frame_size,
407 struct fb_var_screeninfo *var)
408{
409 DBG("can't fit FB into memory, reducing y\n");
410 var->yres_virtual = max_frame_size /
411 (var->xres_virtual * var->bits_per_pixel >> 3);
412
413 if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN)
414 var->yres_virtual = OMAPFB_PLANE_YRES_MIN;
415
416 if (var->yres > var->yres_virtual)
417 var->yres = var->yres_virtual;
418}
419
420static void shrink_width(unsigned long max_frame_size,
421 struct fb_var_screeninfo *var)
422{
423 DBG("can't fit FB into memory, reducing x\n");
424 var->xres_virtual = max_frame_size / var->yres_virtual /
425 (var->bits_per_pixel >> 3);
426
427 if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN)
428 var->xres_virtual = OMAPFB_PLANE_XRES_MIN;
429
430 if (var->xres > var->xres_virtual)
431 var->xres = var->xres_virtual;
432}
433
434static int check_vrfb_fb_size(unsigned long region_size,
435 const struct fb_var_screeninfo *var)
436{
437 unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual,
438 var->yres_virtual, var->bits_per_pixel >> 3);
439
440 return min_phys_size > region_size ? -EINVAL : 0;
441}
442
443static int check_fb_size(const struct omapfb_info *ofbi,
444 struct fb_var_screeninfo *var)
445{
446 unsigned long max_frame_size = ofbi->region->size;
447 int bytespp = var->bits_per_pixel >> 3;
448 unsigned long line_size = var->xres_virtual * bytespp;
449
450 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
451
452 if (check_vrfb_fb_size(max_frame_size, var))
453 shrink_height(omap_vrfb_max_height(
454 max_frame_size, var->xres_virtual, bytespp) *
455 line_size, var);
456
457 if (check_vrfb_fb_size(max_frame_size, var)) {
458 DBG("cannot fit FB to memory\n");
459 return -EINVAL;
460 }
461
462 return 0;
463 }
464
465 DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size);
466
467 if (line_size * var->yres_virtual > max_frame_size)
468 shrink_height(max_frame_size, var);
469
470 if (line_size * var->yres_virtual > max_frame_size) {
471 shrink_width(max_frame_size, var);
472 line_size = var->xres_virtual * bytespp;
473 }
474
475 if (line_size * var->yres_virtual > max_frame_size) {
476 DBG("cannot fit FB to memory\n");
477 return -EINVAL;
478 }
479
480 return 0;
481}
482
483
484
485
486
487
488
489
490static int setup_vrfb_rotation(struct fb_info *fbi)
491{
492 struct omapfb_info *ofbi = FB2OFB(fbi);
493 struct omapfb2_mem_region *rg = ofbi->region;
494 struct vrfb *vrfb = &rg->vrfb;
495 struct fb_var_screeninfo *var = &fbi->var;
496 struct fb_fix_screeninfo *fix = &fbi->fix;
497 unsigned bytespp;
498 bool yuv_mode;
499 enum omap_color_mode mode;
500 int r;
501 bool reconf;
502
503 if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB)
504 return 0;
505
506 DBG("setup_vrfb_rotation\n");
507
508 r = fb_mode_to_dss_mode(var, &mode);
509 if (r)
510 return r;
511
512 bytespp = var->bits_per_pixel >> 3;
513
514 yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY;
515
516
517
518
519
520
521 reconf = false;
522
523 if (yuv_mode != vrfb->yuv_mode)
524 reconf = true;
525 else if (bytespp != vrfb->bytespp)
526 reconf = true;
527 else if (vrfb->xres != var->xres_virtual ||
528 vrfb->yres != var->yres_virtual)
529 reconf = true;
530
531 if (vrfb->vaddr[0] && reconf) {
532 fbi->screen_base = NULL;
533 fix->smem_start = 0;
534 fix->smem_len = 0;
535 iounmap(vrfb->vaddr[0]);
536 vrfb->vaddr[0] = NULL;
537 DBG("setup_vrfb_rotation: reset fb\n");
538 }
539
540 if (vrfb->vaddr[0])
541 return 0;
542
543 omap_vrfb_setup(&rg->vrfb, rg->paddr,
544 var->xres_virtual,
545 var->yres_virtual,
546 bytespp, yuv_mode);
547
548
549 r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0);
550 if (r)
551 return r;
552
553
554 fbi->screen_base = ofbi->region->vrfb.vaddr[0];
555
556 fix->smem_start = ofbi->region->vrfb.paddr[0];
557
558 switch (var->nonstd) {
559 case OMAPFB_COLOR_YUV422:
560 case OMAPFB_COLOR_YUY422:
561 fix->line_length =
562 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
563 break;
564 default:
565 fix->line_length =
566 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
567 break;
568 }
569
570 fix->smem_len = var->yres_virtual * fix->line_length;
571
572 return 0;
573}
574
575int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
576 struct fb_var_screeninfo *var)
577{
578 int i;
579
580 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
581 struct omapfb_colormode *mode = &omapfb_colormodes[i];
582 if (dssmode == mode->dssmode) {
583 assign_colormode_to_var(var, mode);
584 return 0;
585 }
586 }
587 return -ENOENT;
588}
589
590void set_fb_fix(struct fb_info *fbi)
591{
592 struct fb_fix_screeninfo *fix = &fbi->fix;
593 struct fb_var_screeninfo *var = &fbi->var;
594 struct omapfb_info *ofbi = FB2OFB(fbi);
595 struct omapfb2_mem_region *rg = ofbi->region;
596
597 DBG("set_fb_fix\n");
598
599
600 fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi);
601
602
603 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
604 switch (var->nonstd) {
605 case OMAPFB_COLOR_YUV422:
606 case OMAPFB_COLOR_YUY422:
607 fix->line_length =
608 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
609 break;
610 default:
611 fix->line_length =
612 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
613 break;
614 }
615
616 fix->smem_len = var->yres_virtual * fix->line_length;
617 } else {
618 fix->line_length =
619 (var->xres_virtual * var->bits_per_pixel) >> 3;
620 fix->smem_len = rg->size;
621 }
622
623 fix->smem_start = omapfb_get_region_paddr(ofbi);
624
625 fix->type = FB_TYPE_PACKED_PIXELS;
626
627 if (var->nonstd)
628 fix->visual = FB_VISUAL_PSEUDOCOLOR;
629 else {
630 switch (var->bits_per_pixel) {
631 case 32:
632 case 24:
633 case 16:
634 case 12:
635 fix->visual = FB_VISUAL_TRUECOLOR;
636
637 break;
638 case 1:
639 case 2:
640 case 4:
641 case 8:
642 fix->visual = FB_VISUAL_PSEUDOCOLOR;
643 break;
644 }
645 }
646
647 fix->accel = FB_ACCEL_NONE;
648
649 fix->xpanstep = 1;
650 fix->ypanstep = 1;
651}
652
653
654int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
655{
656 struct omapfb_info *ofbi = FB2OFB(fbi);
657 struct omap_dss_device *display = fb2display(fbi);
658 enum omap_color_mode mode = 0;
659 int i;
660 int r;
661
662 DBG("check_fb_var %d\n", ofbi->id);
663
664 WARN_ON(!atomic_read(&ofbi->region->lock_count));
665
666 r = fb_mode_to_dss_mode(var, &mode);
667 if (r) {
668 DBG("cannot convert var to omap dss mode\n");
669 return r;
670 }
671
672 for (i = 0; i < ofbi->num_overlays; ++i) {
673 if ((ofbi->overlays[i]->supported_modes & mode) == 0) {
674 DBG("invalid mode\n");
675 return -EINVAL;
676 }
677 }
678
679 if (var->rotate > 3)
680 return -EINVAL;
681
682 if (check_fb_res_bounds(var))
683 return -EINVAL;
684
685
686 if (ofbi->region->size != 0 && check_fb_size(ofbi, var))
687 return -EINVAL;
688
689 if (var->xres + var->xoffset > var->xres_virtual)
690 var->xoffset = var->xres_virtual - var->xres;
691 if (var->yres + var->yoffset > var->yres_virtual)
692 var->yoffset = var->yres_virtual - var->yres;
693
694 DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
695 var->xres, var->yres,
696 var->xres_virtual, var->yres_virtual);
697
698 if (display && display->driver->get_dimensions) {
699 u32 w, h;
700 display->driver->get_dimensions(display, &w, &h);
701 var->width = DIV_ROUND_CLOSEST(w, 1000);
702 var->height = DIV_ROUND_CLOSEST(h, 1000);
703 } else {
704 var->height = -1;
705 var->width = -1;
706 }
707
708 var->grayscale = 0;
709
710 if (display && display->driver->get_timings) {
711 struct omap_video_timings timings;
712 display->driver->get_timings(display, &timings);
713
714
715 var->pixclock = timings.pixelclock != 0 ?
716 KHZ2PICOS(timings.pixelclock / 1000) :
717 0;
718 var->left_margin = timings.hbp;
719 var->right_margin = timings.hfp;
720 var->upper_margin = timings.vbp;
721 var->lower_margin = timings.vfp;
722 var->hsync_len = timings.hsw;
723 var->vsync_len = timings.vsw;
724 var->sync |= timings.hsync_level == OMAPDSS_SIG_ACTIVE_HIGH ?
725 FB_SYNC_HOR_HIGH_ACT : 0;
726 var->sync |= timings.vsync_level == OMAPDSS_SIG_ACTIVE_HIGH ?
727 FB_SYNC_VERT_HIGH_ACT : 0;
728 var->vmode = timings.interlace ?
729 FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED;
730 } else {
731 var->pixclock = 0;
732 var->left_margin = 0;
733 var->right_margin = 0;
734 var->upper_margin = 0;
735 var->lower_margin = 0;
736 var->hsync_len = 0;
737 var->vsync_len = 0;
738 var->sync = 0;
739 var->vmode = FB_VMODE_NONINTERLACED;
740 }
741
742 return 0;
743}
744
745
746
747
748
749
750static int omapfb_open(struct fb_info *fbi, int user)
751{
752 return 0;
753}
754
755static int omapfb_release(struct fb_info *fbi, int user)
756{
757 return 0;
758}
759
760static unsigned calc_rotation_offset_dma(const struct fb_var_screeninfo *var,
761 const struct fb_fix_screeninfo *fix, int rotation)
762{
763 unsigned offset;
764
765 offset = var->yoffset * fix->line_length +
766 var->xoffset * (var->bits_per_pixel >> 3);
767
768 return offset;
769}
770
771static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var,
772 const struct fb_fix_screeninfo *fix, int rotation)
773{
774 unsigned offset;
775
776 if (rotation == FB_ROTATE_UD)
777 offset = (var->yres_virtual - var->yres) *
778 fix->line_length;
779 else if (rotation == FB_ROTATE_CW)
780 offset = (var->yres_virtual - var->yres) *
781 (var->bits_per_pixel >> 3);
782 else
783 offset = 0;
784
785 if (rotation == FB_ROTATE_UR)
786 offset += var->yoffset * fix->line_length +
787 var->xoffset * (var->bits_per_pixel >> 3);
788 else if (rotation == FB_ROTATE_UD)
789 offset -= var->yoffset * fix->line_length +
790 var->xoffset * (var->bits_per_pixel >> 3);
791 else if (rotation == FB_ROTATE_CW)
792 offset -= var->xoffset * fix->line_length +
793 var->yoffset * (var->bits_per_pixel >> 3);
794 else if (rotation == FB_ROTATE_CCW)
795 offset += var->xoffset * fix->line_length +
796 var->yoffset * (var->bits_per_pixel >> 3);
797
798 return offset;
799}
800
801static void omapfb_calc_addr(const struct omapfb_info *ofbi,
802 const struct fb_var_screeninfo *var,
803 const struct fb_fix_screeninfo *fix,
804 int rotation, u32 *paddr)
805{
806 u32 data_start_p;
807 int offset;
808
809 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
810 data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
811 else
812 data_start_p = omapfb_get_region_paddr(ofbi);
813
814 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
815 offset = calc_rotation_offset_vrfb(var, fix, rotation);
816 else
817 offset = calc_rotation_offset_dma(var, fix, rotation);
818
819 data_start_p += offset;
820
821 if (offset)
822 DBG("offset %d, %d = %d\n",
823 var->xoffset, var->yoffset, offset);
824
825 DBG("paddr %x\n", data_start_p);
826
827 *paddr = data_start_p;
828}
829
830
831int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
832 u16 posx, u16 posy, u16 outw, u16 outh)
833{
834 int r = 0;
835 struct omapfb_info *ofbi = FB2OFB(fbi);
836 struct fb_var_screeninfo *var = &fbi->var;
837 struct fb_fix_screeninfo *fix = &fbi->fix;
838 enum omap_color_mode mode = 0;
839 u32 data_start_p = 0;
840 struct omap_overlay_info info;
841 int xres, yres;
842 int screen_width;
843 int mirror;
844 int rotation = var->rotate;
845 int i;
846
847 WARN_ON(!atomic_read(&ofbi->region->lock_count));
848
849 for (i = 0; i < ofbi->num_overlays; i++) {
850 if (ovl != ofbi->overlays[i])
851 continue;
852
853 rotation = (rotation + ofbi->rotation[i]) % 4;
854 break;
855 }
856
857 DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id,
858 posx, posy, outw, outh);
859
860 if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) {
861 xres = var->yres;
862 yres = var->xres;
863 } else {
864 xres = var->xres;
865 yres = var->yres;
866 }
867
868 if (ofbi->region->size)
869 omapfb_calc_addr(ofbi, var, fix, rotation, &data_start_p);
870
871 r = fb_mode_to_dss_mode(var, &mode);
872 if (r) {
873 DBG("fb_mode_to_dss_mode failed");
874 goto err;
875 }
876
877 switch (var->nonstd) {
878 case OMAPFB_COLOR_YUV422:
879 case OMAPFB_COLOR_YUY422:
880 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
881 screen_width = fix->line_length
882 / (var->bits_per_pixel >> 2);
883 break;
884 }
885
886 default:
887 screen_width = fix->line_length / (var->bits_per_pixel >> 3);
888 break;
889 }
890
891 ovl->get_overlay_info(ovl, &info);
892
893 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
894 mirror = 0;
895 else
896 mirror = ofbi->mirror;
897
898 info.paddr = data_start_p;
899 info.screen_width = screen_width;
900 info.width = xres;
901 info.height = yres;
902 info.color_mode = mode;
903 info.rotation_type = ofbi->rotation_type;
904 info.rotation = rotation;
905 info.mirror = mirror;
906
907 info.pos_x = posx;
908 info.pos_y = posy;
909 info.out_width = outw;
910 info.out_height = outh;
911
912 r = ovl->set_overlay_info(ovl, &info);
913 if (r) {
914 DBG("ovl->setup_overlay_info failed\n");
915 goto err;
916 }
917
918 return 0;
919
920err:
921 DBG("setup_overlay failed\n");
922 return r;
923}
924
925
926int omapfb_apply_changes(struct fb_info *fbi, int init)
927{
928 int r = 0;
929 struct omapfb_info *ofbi = FB2OFB(fbi);
930 struct fb_var_screeninfo *var = &fbi->var;
931 struct omap_overlay *ovl;
932 u16 posx, posy;
933 u16 outw, outh;
934 int i;
935
936#ifdef DEBUG
937 if (omapfb_test_pattern)
938 fill_fb(fbi);
939#endif
940
941 WARN_ON(!atomic_read(&ofbi->region->lock_count));
942
943 for (i = 0; i < ofbi->num_overlays; i++) {
944 ovl = ofbi->overlays[i];
945
946 DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id);
947
948 if (ofbi->region->size == 0) {
949
950 omapfb_overlay_enable(ovl, 0);
951 if (!init && ovl->manager)
952 ovl->manager->apply(ovl->manager);
953 continue;
954 }
955
956 if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
957 int rotation = (var->rotate + ofbi->rotation[i]) % 4;
958 if (rotation == FB_ROTATE_CW ||
959 rotation == FB_ROTATE_CCW) {
960 outw = var->yres;
961 outh = var->xres;
962 } else {
963 outw = var->xres;
964 outh = var->yres;
965 }
966 } else {
967 struct omap_overlay_info info;
968 ovl->get_overlay_info(ovl, &info);
969 outw = info.out_width;
970 outh = info.out_height;
971 }
972
973 if (init) {
974 posx = 0;
975 posy = 0;
976 } else {
977 struct omap_overlay_info info;
978 ovl->get_overlay_info(ovl, &info);
979 posx = info.pos_x;
980 posy = info.pos_y;
981 }
982
983 r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
984 if (r)
985 goto err;
986
987 if (!init && ovl->manager)
988 ovl->manager->apply(ovl->manager);
989 }
990 return 0;
991err:
992 DBG("apply_changes failed\n");
993 return r;
994}
995
996
997
998static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
999{
1000 struct omapfb_info *ofbi = FB2OFB(fbi);
1001 int r;
1002
1003 DBG("check_var(%d)\n", FB2OFB(fbi)->id);
1004
1005 omapfb_get_mem_region(ofbi->region);
1006
1007 r = check_fb_var(fbi, var);
1008
1009 omapfb_put_mem_region(ofbi->region);
1010
1011 return r;
1012}
1013
1014
1015static int omapfb_set_par(struct fb_info *fbi)
1016{
1017 struct omapfb_info *ofbi = FB2OFB(fbi);
1018 int r;
1019
1020 DBG("set_par(%d)\n", FB2OFB(fbi)->id);
1021
1022 omapfb_get_mem_region(ofbi->region);
1023
1024 set_fb_fix(fbi);
1025
1026 r = setup_vrfb_rotation(fbi);
1027 if (r)
1028 goto out;
1029
1030 r = omapfb_apply_changes(fbi, 0);
1031
1032 out:
1033 omapfb_put_mem_region(ofbi->region);
1034
1035 return r;
1036}
1037
1038static int omapfb_pan_display(struct fb_var_screeninfo *var,
1039 struct fb_info *fbi)
1040{
1041 struct omapfb_info *ofbi = FB2OFB(fbi);
1042 struct fb_var_screeninfo new_var;
1043 int r;
1044
1045 DBG("pan_display(%d)\n", FB2OFB(fbi)->id);
1046
1047 if (var->xoffset == fbi->var.xoffset &&
1048 var->yoffset == fbi->var.yoffset)
1049 return 0;
1050
1051 new_var = fbi->var;
1052 new_var.xoffset = var->xoffset;
1053 new_var.yoffset = var->yoffset;
1054
1055 fbi->var = new_var;
1056
1057 omapfb_get_mem_region(ofbi->region);
1058
1059 r = omapfb_apply_changes(fbi, 0);
1060
1061 omapfb_put_mem_region(ofbi->region);
1062
1063 return r;
1064}
1065
1066static void mmap_user_open(struct vm_area_struct *vma)
1067{
1068 struct omapfb2_mem_region *rg = vma->vm_private_data;
1069
1070 omapfb_get_mem_region(rg);
1071 atomic_inc(&rg->map_count);
1072 omapfb_put_mem_region(rg);
1073}
1074
1075static void mmap_user_close(struct vm_area_struct *vma)
1076{
1077 struct omapfb2_mem_region *rg = vma->vm_private_data;
1078
1079 omapfb_get_mem_region(rg);
1080 atomic_dec(&rg->map_count);
1081 omapfb_put_mem_region(rg);
1082}
1083
1084static const struct vm_operations_struct mmap_user_ops = {
1085 .open = mmap_user_open,
1086 .close = mmap_user_close,
1087};
1088
1089static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
1090{
1091 struct omapfb_info *ofbi = FB2OFB(fbi);
1092 struct fb_fix_screeninfo *fix = &fbi->fix;
1093 struct omapfb2_mem_region *rg;
1094 unsigned long start;
1095 u32 len;
1096 int r;
1097
1098 rg = omapfb_get_mem_region(ofbi->region);
1099
1100 start = omapfb_get_region_paddr(ofbi);
1101 len = fix->smem_len;
1102
1103 DBG("user mmap region start %lx, len %d, off %lx\n", start, len,
1104 vma->vm_pgoff << PAGE_SHIFT);
1105
1106 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
1107 vma->vm_ops = &mmap_user_ops;
1108 vma->vm_private_data = rg;
1109
1110 r = vm_iomap_memory(vma, start, len);
1111 if (r)
1112 goto error;
1113
1114
1115 atomic_inc(&rg->map_count);
1116
1117 omapfb_put_mem_region(rg);
1118
1119 return 0;
1120
1121error:
1122 omapfb_put_mem_region(ofbi->region);
1123
1124 return r;
1125}
1126
1127
1128
1129
1130
1131static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
1132 u_int blue, u_int transp, int update_hw_pal)
1133{
1134
1135
1136 struct fb_var_screeninfo *var = &fbi->var;
1137 int r = 0;
1138
1139 enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U;
1140
1141
1142 switch (mode) {
1143 case OMAPFB_COLOR_YUV422:
1144 case OMAPFB_COLOR_YUV420:
1145 case OMAPFB_COLOR_YUY422:
1146 r = -EINVAL;
1147 break;
1148 case OMAPFB_COLOR_CLUT_8BPP:
1149 case OMAPFB_COLOR_CLUT_4BPP:
1150 case OMAPFB_COLOR_CLUT_2BPP:
1151 case OMAPFB_COLOR_CLUT_1BPP:
1152
1153
1154
1155
1156
1157
1158 r = -EINVAL;
1159 break;
1160 case OMAPFB_COLOR_RGB565:
1161 case OMAPFB_COLOR_RGB444:
1162 case OMAPFB_COLOR_RGB24P:
1163 case OMAPFB_COLOR_RGB24U:
1164 if (r != 0)
1165 break;
1166
1167 if (regno < 16) {
1168 u32 pal;
1169 pal = ((red >> (16 - var->red.length)) <<
1170 var->red.offset) |
1171 ((green >> (16 - var->green.length)) <<
1172 var->green.offset) |
1173 (blue >> (16 - var->blue.length));
1174 ((u32 *)(fbi->pseudo_palette))[regno] = pal;
1175 }
1176 break;
1177 default:
1178 BUG();
1179 }
1180 return r;
1181}
1182
1183static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
1184 u_int transp, struct fb_info *info)
1185{
1186 DBG("setcolreg\n");
1187
1188 return _setcolreg(info, regno, red, green, blue, transp, 1);
1189}
1190
1191static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
1192{
1193 int count, index, r;
1194 u16 *red, *green, *blue, *transp;
1195 u16 trans = 0xffff;
1196
1197 DBG("setcmap\n");
1198
1199 red = cmap->red;
1200 green = cmap->green;
1201 blue = cmap->blue;
1202 transp = cmap->transp;
1203 index = cmap->start;
1204
1205 for (count = 0; count < cmap->len; count++) {
1206 if (transp)
1207 trans = *transp++;
1208 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
1209 count == cmap->len - 1);
1210 if (r != 0)
1211 return r;
1212 }
1213
1214 return 0;
1215}
1216
1217static int omapfb_blank(int blank, struct fb_info *fbi)
1218{
1219 struct omapfb_info *ofbi = FB2OFB(fbi);
1220 struct omapfb2_device *fbdev = ofbi->fbdev;
1221 struct omap_dss_device *display = fb2display(fbi);
1222 struct omapfb_display_data *d;
1223 int r = 0;
1224
1225 if (!display)
1226 return -EINVAL;
1227
1228 omapfb_lock(fbdev);
1229
1230 d = get_display_data(fbdev, display);
1231
1232 switch (blank) {
1233 case FB_BLANK_UNBLANK:
1234 if (display->state == OMAP_DSS_DISPLAY_ACTIVE)
1235 goto exit;
1236
1237 r = display->driver->enable(display);
1238
1239 if ((display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) &&
1240 d->update_mode == OMAPFB_AUTO_UPDATE &&
1241 !d->auto_update_work_enabled)
1242 omapfb_start_auto_update(fbdev, display);
1243
1244 break;
1245
1246 case FB_BLANK_NORMAL:
1247
1248
1249 case FB_BLANK_VSYNC_SUSPEND:
1250 case FB_BLANK_HSYNC_SUSPEND:
1251 case FB_BLANK_POWERDOWN:
1252 if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
1253 goto exit;
1254
1255 if (d->auto_update_work_enabled)
1256 omapfb_stop_auto_update(fbdev, display);
1257
1258 display->driver->disable(display);
1259
1260 break;
1261
1262 default:
1263 r = -EINVAL;
1264 }
1265
1266exit:
1267 omapfb_unlock(fbdev);
1268
1269 return r;
1270}
1271
1272#if 0
1273
1274ssize_t omapfb_write(struct fb_info *info, const char __user *buf,
1275 size_t count, loff_t *ppos)
1276{
1277 DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos);
1278
1279 return count;
1280}
1281#endif
1282
1283static struct fb_ops omapfb_ops = {
1284 .owner = THIS_MODULE,
1285 .fb_open = omapfb_open,
1286 .fb_release = omapfb_release,
1287 .fb_fillrect = cfb_fillrect,
1288 .fb_copyarea = cfb_copyarea,
1289 .fb_imageblit = cfb_imageblit,
1290 .fb_blank = omapfb_blank,
1291 .fb_ioctl = omapfb_ioctl,
1292 .fb_check_var = omapfb_check_var,
1293 .fb_set_par = omapfb_set_par,
1294 .fb_pan_display = omapfb_pan_display,
1295 .fb_mmap = omapfb_mmap,
1296 .fb_setcolreg = omapfb_setcolreg,
1297 .fb_setcmap = omapfb_setcmap,
1298
1299};
1300
1301static void omapfb_free_fbmem(struct fb_info *fbi)
1302{
1303 struct omapfb_info *ofbi = FB2OFB(fbi);
1304 struct omapfb2_device *fbdev = ofbi->fbdev;
1305 struct omapfb2_mem_region *rg;
1306
1307 rg = ofbi->region;
1308
1309 if (rg->token == NULL)
1310 return;
1311
1312 WARN_ON(atomic_read(&rg->map_count));
1313
1314 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1315
1316 if (rg->vrfb.vaddr[0]) {
1317 iounmap(rg->vrfb.vaddr[0]);
1318 rg->vrfb.vaddr[0] = NULL;
1319 }
1320
1321 omap_vrfb_release_ctx(&rg->vrfb);
1322 }
1323
1324 dma_free_attrs(fbdev->dev, rg->size, rg->token, rg->dma_handle,
1325 rg->attrs);
1326
1327 rg->token = NULL;
1328 rg->vaddr = NULL;
1329 rg->paddr = 0;
1330 rg->alloc = 0;
1331 rg->size = 0;
1332}
1333
1334static void clear_fb_info(struct fb_info *fbi)
1335{
1336 memset(&fbi->var, 0, sizeof(fbi->var));
1337 memset(&fbi->fix, 0, sizeof(fbi->fix));
1338 strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id));
1339}
1340
1341static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
1342{
1343 int i;
1344
1345 DBG("free all fbmem\n");
1346
1347 for (i = 0; i < fbdev->num_fbs; i++) {
1348 struct fb_info *fbi = fbdev->fbs[i];
1349 omapfb_free_fbmem(fbi);
1350 clear_fb_info(fbi);
1351 }
1352
1353 return 0;
1354}
1355
1356static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
1357 unsigned long paddr)
1358{
1359 struct omapfb_info *ofbi = FB2OFB(fbi);
1360 struct omapfb2_device *fbdev = ofbi->fbdev;
1361 struct omapfb2_mem_region *rg;
1362 void *token;
1363 unsigned long attrs;
1364 dma_addr_t dma_handle;
1365 int r;
1366
1367 rg = ofbi->region;
1368
1369 rg->paddr = 0;
1370 rg->vaddr = NULL;
1371 memset(&rg->vrfb, 0, sizeof rg->vrfb);
1372 rg->size = 0;
1373 rg->type = 0;
1374 rg->alloc = false;
1375 rg->map = false;
1376
1377 size = PAGE_ALIGN(size);
1378
1379 attrs = DMA_ATTR_WRITE_COMBINE;
1380
1381 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
1382 attrs |= DMA_ATTR_NO_KERNEL_MAPPING;
1383
1384 DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
1385
1386 token = dma_alloc_attrs(fbdev->dev, size, &dma_handle,
1387 GFP_KERNEL, attrs);
1388
1389 if (token == NULL) {
1390 dev_err(fbdev->dev, "failed to allocate framebuffer\n");
1391 return -ENOMEM;
1392 }
1393
1394 DBG("allocated VRAM paddr %lx, vaddr %p\n",
1395 (unsigned long)dma_handle, token);
1396
1397 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1398 r = omap_vrfb_request_ctx(&rg->vrfb);
1399 if (r) {
1400 dma_free_attrs(fbdev->dev, size, token, dma_handle,
1401 attrs);
1402 dev_err(fbdev->dev, "vrfb create ctx failed\n");
1403 return r;
1404 }
1405 }
1406
1407 rg->attrs = attrs;
1408 rg->token = token;
1409 rg->dma_handle = dma_handle;
1410
1411 rg->paddr = (unsigned long)dma_handle;
1412 rg->vaddr = (void __iomem *)token;
1413 rg->size = size;
1414 rg->alloc = 1;
1415
1416 return 0;
1417}
1418
1419
1420static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
1421 unsigned long paddr)
1422{
1423 struct omapfb_info *ofbi = FB2OFB(fbi);
1424 struct omapfb2_device *fbdev = ofbi->fbdev;
1425 struct omap_dss_device *display;
1426 int bytespp;
1427
1428 display = fb2display(fbi);
1429
1430 if (!display)
1431 return 0;
1432
1433 switch (omapfb_get_recommended_bpp(fbdev, display)) {
1434 case 16:
1435 bytespp = 2;
1436 break;
1437 case 24:
1438 bytespp = 4;
1439 break;
1440 default:
1441 bytespp = 4;
1442 break;
1443 }
1444
1445 if (!size) {
1446 u16 w, h;
1447
1448 display->driver->get_resolution(display, &w, &h);
1449
1450 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1451 size = max(omap_vrfb_min_phys_size(w, h, bytespp),
1452 omap_vrfb_min_phys_size(h, w, bytespp));
1453
1454 DBG("adjusting fb mem size for VRFB, %u -> %lu\n",
1455 w * h * bytespp, size);
1456 } else {
1457 size = w * h * bytespp;
1458 }
1459 }
1460
1461 if (!size)
1462 return 0;
1463
1464 return omapfb_alloc_fbmem(fbi, size, paddr);
1465}
1466
1467static int omapfb_parse_vram_param(const char *param, int max_entries,
1468 unsigned long *sizes, unsigned long *paddrs)
1469{
1470 unsigned int fbnum;
1471 unsigned long size;
1472 unsigned long paddr = 0;
1473 char *p, *start;
1474
1475 start = (char *)param;
1476
1477 while (1) {
1478 p = start;
1479
1480 fbnum = simple_strtoul(p, &p, 10);
1481
1482 if (p == start)
1483 return -EINVAL;
1484
1485 if (*p != ':')
1486 return -EINVAL;
1487
1488 if (fbnum >= max_entries)
1489 return -EINVAL;
1490
1491 size = memparse(p + 1, &p);
1492
1493 if (!size)
1494 return -EINVAL;
1495
1496 paddr = 0;
1497
1498 if (*p == '@') {
1499 paddr = simple_strtoul(p + 1, &p, 16);
1500
1501 if (!paddr)
1502 return -EINVAL;
1503
1504 }
1505
1506 WARN_ONCE(paddr,
1507 "reserving memory at predefined address not supported\n");
1508
1509 paddrs[fbnum] = paddr;
1510 sizes[fbnum] = size;
1511
1512 if (*p == 0)
1513 break;
1514
1515 if (*p != ',')
1516 return -EINVAL;
1517
1518 ++p;
1519
1520 start = p;
1521 }
1522
1523 return 0;
1524}
1525
1526static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev)
1527{
1528 int i, r;
1529 unsigned long vram_sizes[10];
1530 unsigned long vram_paddrs[10];
1531
1532 memset(&vram_sizes, 0, sizeof(vram_sizes));
1533 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1534
1535 if (def_vram && omapfb_parse_vram_param(def_vram, 10,
1536 vram_sizes, vram_paddrs)) {
1537 dev_err(fbdev->dev, "failed to parse vram parameter\n");
1538
1539 memset(&vram_sizes, 0, sizeof(vram_sizes));
1540 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1541 }
1542
1543 for (i = 0; i < fbdev->num_fbs; i++) {
1544
1545
1546 if (i == 0 || vram_sizes[i] != 0) {
1547 r = omapfb_alloc_fbmem_display(fbdev->fbs[i],
1548 vram_sizes[i], vram_paddrs[i]);
1549
1550 if (r)
1551 return r;
1552 }
1553 }
1554
1555 for (i = 0; i < fbdev->num_fbs; i++) {
1556 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1557 struct omapfb2_mem_region *rg;
1558 rg = ofbi->region;
1559
1560 DBG("region%d phys %08x virt %p size=%lu\n",
1561 i,
1562 rg->paddr,
1563 rg->vaddr,
1564 rg->size);
1565 }
1566
1567 return 0;
1568}
1569
1570static void omapfb_clear_fb(struct fb_info *fbi)
1571{
1572 const struct fb_fillrect rect = {
1573 .dx = 0,
1574 .dy = 0,
1575 .width = fbi->var.xres_virtual,
1576 .height = fbi->var.yres_virtual,
1577 .color = 0,
1578 .rop = ROP_COPY,
1579 };
1580
1581 cfb_fillrect(fbi, &rect);
1582}
1583
1584int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
1585{
1586 struct omapfb_info *ofbi = FB2OFB(fbi);
1587 struct omapfb2_device *fbdev = ofbi->fbdev;
1588 struct omapfb2_mem_region *rg = ofbi->region;
1589 unsigned long old_size = rg->size;
1590 unsigned long old_paddr = rg->paddr;
1591 int old_type = rg->type;
1592 int r;
1593
1594 if (type != OMAPFB_MEMTYPE_SDRAM)
1595 return -EINVAL;
1596
1597 size = PAGE_ALIGN(size);
1598
1599 if (old_size == size && old_type == type)
1600 return 0;
1601
1602 omapfb_free_fbmem(fbi);
1603
1604 if (size == 0) {
1605 clear_fb_info(fbi);
1606 return 0;
1607 }
1608
1609 r = omapfb_alloc_fbmem(fbi, size, 0);
1610
1611 if (r) {
1612 if (old_size)
1613 omapfb_alloc_fbmem(fbi, old_size, old_paddr);
1614
1615 if (rg->size == 0)
1616 clear_fb_info(fbi);
1617
1618 return r;
1619 }
1620
1621 if (old_size == size)
1622 return 0;
1623
1624 if (old_size == 0) {
1625 DBG("initializing fb %d\n", ofbi->id);
1626 r = omapfb_fb_init(fbdev, fbi);
1627 if (r) {
1628 DBG("omapfb_fb_init failed\n");
1629 goto err;
1630 }
1631 r = omapfb_apply_changes(fbi, 1);
1632 if (r) {
1633 DBG("omapfb_apply_changes failed\n");
1634 goto err;
1635 }
1636 } else {
1637 struct fb_var_screeninfo new_var;
1638 memcpy(&new_var, &fbi->var, sizeof(new_var));
1639 r = check_fb_var(fbi, &new_var);
1640 if (r)
1641 goto err;
1642 memcpy(&fbi->var, &new_var, sizeof(fbi->var));
1643 set_fb_fix(fbi);
1644 r = setup_vrfb_rotation(fbi);
1645 if (r)
1646 goto err;
1647 }
1648
1649 omapfb_clear_fb(fbi);
1650
1651 return 0;
1652err:
1653 omapfb_free_fbmem(fbi);
1654 clear_fb_info(fbi);
1655 return r;
1656}
1657
1658static void omapfb_auto_update_work(struct work_struct *work)
1659{
1660 struct omap_dss_device *dssdev;
1661 struct omap_dss_driver *dssdrv;
1662 struct omapfb_display_data *d;
1663 u16 w, h;
1664 unsigned int freq;
1665 struct omapfb2_device *fbdev;
1666
1667 d = container_of(work, struct omapfb_display_data,
1668 auto_update_work.work);
1669
1670 dssdev = d->dssdev;
1671 dssdrv = dssdev->driver;
1672 fbdev = d->fbdev;
1673
1674 if (!dssdrv || !dssdrv->update)
1675 return;
1676
1677 if (dssdrv->sync)
1678 dssdrv->sync(dssdev);
1679
1680 dssdrv->get_resolution(dssdev, &w, &h);
1681 dssdrv->update(dssdev, 0, 0, w, h);
1682
1683 freq = auto_update_freq;
1684 if (freq == 0)
1685 freq = 20;
1686 queue_delayed_work(fbdev->auto_update_wq,
1687 &d->auto_update_work, HZ / freq);
1688}
1689
1690void omapfb_start_auto_update(struct omapfb2_device *fbdev,
1691 struct omap_dss_device *display)
1692{
1693 struct omapfb_display_data *d;
1694
1695 if (fbdev->auto_update_wq == NULL) {
1696 struct workqueue_struct *wq;
1697
1698 wq = create_singlethread_workqueue("omapfb_auto_update");
1699
1700 if (wq == NULL) {
1701 dev_err(fbdev->dev, "Failed to create workqueue for "
1702 "auto-update\n");
1703 return;
1704 }
1705
1706 fbdev->auto_update_wq = wq;
1707 }
1708
1709 d = get_display_data(fbdev, display);
1710
1711 INIT_DELAYED_WORK(&d->auto_update_work, omapfb_auto_update_work);
1712
1713 d->auto_update_work_enabled = true;
1714
1715 omapfb_auto_update_work(&d->auto_update_work.work);
1716}
1717
1718void omapfb_stop_auto_update(struct omapfb2_device *fbdev,
1719 struct omap_dss_device *display)
1720{
1721 struct omapfb_display_data *d;
1722
1723 d = get_display_data(fbdev, display);
1724
1725 cancel_delayed_work_sync(&d->auto_update_work);
1726
1727 d->auto_update_work_enabled = false;
1728}
1729
1730
1731static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
1732{
1733 struct fb_var_screeninfo *var = &fbi->var;
1734 struct omap_dss_device *display = fb2display(fbi);
1735 struct omapfb_info *ofbi = FB2OFB(fbi);
1736 int r = 0;
1737
1738 fbi->fbops = &omapfb_ops;
1739 fbi->flags = FBINFO_FLAG_DEFAULT;
1740 fbi->pseudo_palette = fbdev->pseudo_palette;
1741
1742 if (ofbi->region->size == 0) {
1743 clear_fb_info(fbi);
1744 return 0;
1745 }
1746
1747 var->nonstd = 0;
1748 var->bits_per_pixel = 0;
1749
1750 var->rotate = def_rotate;
1751
1752 if (display) {
1753 u16 w, h;
1754 int rotation = (var->rotate + ofbi->rotation[0]) % 4;
1755
1756 display->driver->get_resolution(display, &w, &h);
1757
1758 if (rotation == FB_ROTATE_CW ||
1759 rotation == FB_ROTATE_CCW) {
1760 var->xres = h;
1761 var->yres = w;
1762 } else {
1763 var->xres = w;
1764 var->yres = h;
1765 }
1766
1767 var->xres_virtual = var->xres;
1768 var->yres_virtual = var->yres;
1769
1770 if (!var->bits_per_pixel) {
1771 switch (omapfb_get_recommended_bpp(fbdev, display)) {
1772 case 16:
1773 var->bits_per_pixel = 16;
1774 break;
1775 case 24:
1776 var->bits_per_pixel = 32;
1777 break;
1778 default:
1779 dev_err(fbdev->dev, "illegal display "
1780 "bpp\n");
1781 return -EINVAL;
1782 }
1783 }
1784 } else {
1785
1786 var->xres = 320;
1787 var->yres = 240;
1788 var->xres_virtual = var->xres;
1789 var->yres_virtual = var->yres;
1790 if (!var->bits_per_pixel)
1791 var->bits_per_pixel = 16;
1792 }
1793
1794 r = check_fb_var(fbi, var);
1795 if (r)
1796 goto err;
1797
1798 set_fb_fix(fbi);
1799 r = setup_vrfb_rotation(fbi);
1800 if (r)
1801 goto err;
1802
1803 r = fb_alloc_cmap(&fbi->cmap, 256, 0);
1804 if (r)
1805 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1806
1807err:
1808 return r;
1809}
1810
1811static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
1812{
1813 fb_dealloc_cmap(&fbi->cmap);
1814}
1815
1816
1817static void omapfb_free_resources(struct omapfb2_device *fbdev)
1818{
1819 int i;
1820
1821 DBG("free_resources\n");
1822
1823 if (fbdev == NULL)
1824 return;
1825
1826 for (i = 0; i < fbdev->num_overlays; i++) {
1827 struct omap_overlay *ovl = fbdev->overlays[i];
1828
1829 ovl->disable(ovl);
1830
1831 if (ovl->manager)
1832 ovl->unset_manager(ovl);
1833 }
1834
1835 for (i = 0; i < fbdev->num_fbs; i++)
1836 unregister_framebuffer(fbdev->fbs[i]);
1837
1838
1839 omapfb_free_all_fbmem(fbdev);
1840
1841 for (i = 0; i < fbdev->num_fbs; i++) {
1842 fbinfo_cleanup(fbdev, fbdev->fbs[i]);
1843 framebuffer_release(fbdev->fbs[i]);
1844 }
1845
1846 for (i = 0; i < fbdev->num_displays; i++) {
1847 struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
1848
1849 if (fbdev->displays[i].auto_update_work_enabled)
1850 omapfb_stop_auto_update(fbdev, dssdev);
1851
1852 if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)
1853 dssdev->driver->disable(dssdev);
1854
1855 dssdev->driver->disconnect(dssdev);
1856
1857 omap_dss_put_device(dssdev);
1858 }
1859
1860 if (fbdev->auto_update_wq != NULL) {
1861 flush_workqueue(fbdev->auto_update_wq);
1862 destroy_workqueue(fbdev->auto_update_wq);
1863 fbdev->auto_update_wq = NULL;
1864 }
1865
1866 dev_set_drvdata(fbdev->dev, NULL);
1867}
1868
1869static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
1870{
1871 int r, i;
1872
1873 fbdev->num_fbs = 0;
1874
1875 DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS);
1876
1877
1878 for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) {
1879 struct fb_info *fbi;
1880 struct omapfb_info *ofbi;
1881
1882 fbi = framebuffer_alloc(sizeof(struct omapfb_info),
1883 fbdev->dev);
1884 if (!fbi)
1885 return -ENOMEM;
1886
1887 clear_fb_info(fbi);
1888
1889 fbdev->fbs[i] = fbi;
1890
1891 ofbi = FB2OFB(fbi);
1892 ofbi->fbdev = fbdev;
1893 ofbi->id = i;
1894
1895 ofbi->region = &fbdev->regions[i];
1896 ofbi->region->id = i;
1897 init_rwsem(&ofbi->region->lock);
1898
1899
1900 ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
1901 OMAP_DSS_ROT_DMA;
1902 ofbi->mirror = def_mirror;
1903
1904 fbdev->num_fbs++;
1905 }
1906
1907 DBG("fb_infos allocated\n");
1908
1909
1910 for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) {
1911 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1912
1913 ofbi->overlays[0] = fbdev->overlays[i];
1914 ofbi->num_overlays = 1;
1915 }
1916
1917
1918 r = omapfb_allocate_all_fbs(fbdev);
1919 if (r) {
1920 dev_err(fbdev->dev, "failed to allocate fbmem\n");
1921 return r;
1922 }
1923
1924 DBG("fbmems allocated\n");
1925
1926
1927 for (i = 0; i < fbdev->num_fbs; i++) {
1928 struct fb_info *fbi = fbdev->fbs[i];
1929 struct omapfb_info *ofbi = FB2OFB(fbi);
1930
1931 omapfb_get_mem_region(ofbi->region);
1932 r = omapfb_fb_init(fbdev, fbi);
1933 omapfb_put_mem_region(ofbi->region);
1934
1935 if (r) {
1936 dev_err(fbdev->dev, "failed to setup fb_info\n");
1937 return r;
1938 }
1939 }
1940
1941 for (i = 0; i < fbdev->num_fbs; i++) {
1942 struct fb_info *fbi = fbdev->fbs[i];
1943 struct omapfb_info *ofbi = FB2OFB(fbi);
1944
1945 if (ofbi->region->size == 0)
1946 continue;
1947
1948 omapfb_clear_fb(fbi);
1949 }
1950
1951 DBG("fb_infos initialized\n");
1952
1953 for (i = 0; i < fbdev->num_fbs; i++) {
1954 r = register_framebuffer(fbdev->fbs[i]);
1955 if (r != 0) {
1956 dev_err(fbdev->dev,
1957 "registering framebuffer %d failed\n", i);
1958 return r;
1959 }
1960 }
1961
1962 DBG("framebuffers registered\n");
1963
1964 for (i = 0; i < fbdev->num_fbs; i++) {
1965 struct fb_info *fbi = fbdev->fbs[i];
1966 struct omapfb_info *ofbi = FB2OFB(fbi);
1967
1968 omapfb_get_mem_region(ofbi->region);
1969 r = omapfb_apply_changes(fbi, 1);
1970 omapfb_put_mem_region(ofbi->region);
1971
1972 if (r) {
1973 dev_err(fbdev->dev, "failed to change mode\n");
1974 return r;
1975 }
1976 }
1977
1978
1979 if (fbdev->num_fbs > 0) {
1980 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]);
1981
1982 if (ofbi->num_overlays > 0) {
1983 struct omap_overlay *ovl = ofbi->overlays[0];
1984
1985 ovl->manager->apply(ovl->manager);
1986
1987 r = omapfb_overlay_enable(ovl, 1);
1988
1989 if (r) {
1990 dev_err(fbdev->dev,
1991 "failed to enable overlay\n");
1992 return r;
1993 }
1994 }
1995 }
1996
1997 DBG("create_framebuffers done\n");
1998
1999 return 0;
2000}
2001
2002static int omapfb_mode_to_timings(const char *mode_str,
2003 struct omap_dss_device *display,
2004 struct omap_video_timings *timings, u8 *bpp)
2005{
2006 struct fb_info *fbi;
2007 struct fb_var_screeninfo *var;
2008 struct fb_ops *fbops;
2009 int r;
2010
2011#ifdef CONFIG_OMAP2_DSS_VENC
2012 if (strcmp(mode_str, "pal") == 0) {
2013 *timings = omap_dss_pal_timings;
2014 *bpp = 24;
2015 return 0;
2016 } else if (strcmp(mode_str, "ntsc") == 0) {
2017 *timings = omap_dss_ntsc_timings;
2018 *bpp = 24;
2019 return 0;
2020 }
2021#endif
2022
2023
2024
2025
2026 *bpp = 0;
2027 fbi = NULL;
2028 var = NULL;
2029 fbops = NULL;
2030
2031 fbi = kzalloc(sizeof(*fbi), GFP_KERNEL);
2032 if (fbi == NULL) {
2033 r = -ENOMEM;
2034 goto err;
2035 }
2036
2037 var = kzalloc(sizeof(*var), GFP_KERNEL);
2038 if (var == NULL) {
2039 r = -ENOMEM;
2040 goto err;
2041 }
2042
2043 fbops = kzalloc(sizeof(*fbops), GFP_KERNEL);
2044 if (fbops == NULL) {
2045 r = -ENOMEM;
2046 goto err;
2047 }
2048
2049 fbi->fbops = fbops;
2050
2051 r = fb_find_mode(var, fbi, mode_str, NULL, 0, NULL, 24);
2052 if (r == 0) {
2053 r = -EINVAL;
2054 goto err;
2055 }
2056
2057 if (display->driver->get_timings) {
2058 display->driver->get_timings(display, timings);
2059 } else {
2060 timings->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
2061 timings->de_level = OMAPDSS_SIG_ACTIVE_HIGH;
2062 timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE;
2063 }
2064
2065 timings->pixelclock = PICOS2KHZ(var->pixclock) * 1000;
2066 timings->hbp = var->left_margin;
2067 timings->hfp = var->right_margin;
2068 timings->vbp = var->upper_margin;
2069 timings->vfp = var->lower_margin;
2070 timings->hsw = var->hsync_len;
2071 timings->vsw = var->vsync_len;
2072 timings->x_res = var->xres;
2073 timings->y_res = var->yres;
2074 timings->hsync_level = var->sync & FB_SYNC_HOR_HIGH_ACT ?
2075 OMAPDSS_SIG_ACTIVE_HIGH :
2076 OMAPDSS_SIG_ACTIVE_LOW;
2077 timings->vsync_level = var->sync & FB_SYNC_VERT_HIGH_ACT ?
2078 OMAPDSS_SIG_ACTIVE_HIGH :
2079 OMAPDSS_SIG_ACTIVE_LOW;
2080 timings->interlace = var->vmode & FB_VMODE_INTERLACED;
2081
2082 switch (var->bits_per_pixel) {
2083 case 16:
2084 *bpp = 16;
2085 break;
2086 case 24:
2087 case 32:
2088 default:
2089 *bpp = 24;
2090 break;
2091 }
2092
2093 r = 0;
2094
2095err:
2096 kfree(fbi);
2097 kfree(var);
2098 kfree(fbops);
2099
2100 return r;
2101}
2102
2103static int omapfb_set_def_mode(struct omapfb2_device *fbdev,
2104 struct omap_dss_device *display, char *mode_str)
2105{
2106 int r;
2107 u8 bpp;
2108 struct omap_video_timings timings, temp_timings;
2109 struct omapfb_display_data *d;
2110
2111 r = omapfb_mode_to_timings(mode_str, display, &timings, &bpp);
2112 if (r)
2113 return r;
2114
2115 d = get_display_data(fbdev, display);
2116 d->bpp_override = bpp;
2117
2118 if (display->driver->check_timings) {
2119 r = display->driver->check_timings(display, &timings);
2120 if (r)
2121 return r;
2122 } else {
2123
2124 if (display->driver->get_timings) {
2125 display->driver->get_timings(display, &temp_timings);
2126
2127 if (temp_timings.x_res != timings.x_res ||
2128 temp_timings.y_res != timings.y_res)
2129 return -EINVAL;
2130 }
2131 }
2132
2133 if (display->driver->set_timings)
2134 display->driver->set_timings(display, &timings);
2135
2136 return 0;
2137}
2138
2139static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev,
2140 struct omap_dss_device *dssdev)
2141{
2142 struct omapfb_display_data *d;
2143
2144 BUG_ON(dssdev->driver->get_recommended_bpp == NULL);
2145
2146 d = get_display_data(fbdev, dssdev);
2147
2148 if (d->bpp_override != 0)
2149 return d->bpp_override;
2150
2151 return dssdev->driver->get_recommended_bpp(dssdev);
2152}
2153
2154static int omapfb_parse_def_modes(struct omapfb2_device *fbdev)
2155{
2156 char *str, *options, *this_opt;
2157 int r = 0;
2158
2159 str = kstrdup(def_mode, GFP_KERNEL);
2160 if (!str)
2161 return -ENOMEM;
2162 options = str;
2163
2164 while (!r && (this_opt = strsep(&options, ",")) != NULL) {
2165 char *p, *display_str, *mode_str;
2166 struct omap_dss_device *display;
2167 int i;
2168
2169 p = strchr(this_opt, ':');
2170 if (!p) {
2171 r = -EINVAL;
2172 break;
2173 }
2174
2175 *p = 0;
2176 display_str = this_opt;
2177 mode_str = p + 1;
2178
2179 display = NULL;
2180 for (i = 0; i < fbdev->num_displays; ++i) {
2181 if (strcmp(fbdev->displays[i].dssdev->name,
2182 display_str) == 0) {
2183 display = fbdev->displays[i].dssdev;
2184 break;
2185 }
2186 }
2187
2188 if (!display) {
2189 r = -EINVAL;
2190 break;
2191 }
2192
2193 r = omapfb_set_def_mode(fbdev, display, mode_str);
2194 if (r)
2195 break;
2196 }
2197
2198 kfree(str);
2199
2200 return r;
2201}
2202
2203static void fb_videomode_to_omap_timings(struct fb_videomode *m,
2204 struct omap_dss_device *display,
2205 struct omap_video_timings *t)
2206{
2207 if (display->driver->get_timings) {
2208 display->driver->get_timings(display, t);
2209 } else {
2210 t->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
2211 t->de_level = OMAPDSS_SIG_ACTIVE_HIGH;
2212 t->sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE;
2213 }
2214
2215 t->x_res = m->xres;
2216 t->y_res = m->yres;
2217 t->pixelclock = PICOS2KHZ(m->pixclock) * 1000;
2218 t->hsw = m->hsync_len;
2219 t->hfp = m->right_margin;
2220 t->hbp = m->left_margin;
2221 t->vsw = m->vsync_len;
2222 t->vfp = m->lower_margin;
2223 t->vbp = m->upper_margin;
2224 t->hsync_level = m->sync & FB_SYNC_HOR_HIGH_ACT ?
2225 OMAPDSS_SIG_ACTIVE_HIGH :
2226 OMAPDSS_SIG_ACTIVE_LOW;
2227 t->vsync_level = m->sync & FB_SYNC_VERT_HIGH_ACT ?
2228 OMAPDSS_SIG_ACTIVE_HIGH :
2229 OMAPDSS_SIG_ACTIVE_LOW;
2230 t->interlace = m->vmode & FB_VMODE_INTERLACED;
2231}
2232
2233static int omapfb_find_best_mode(struct omap_dss_device *display,
2234 struct omap_video_timings *timings)
2235{
2236 struct fb_monspecs *specs;
2237 u8 *edid;
2238 int r, i, best_idx, len;
2239
2240 if (!display->driver->read_edid)
2241 return -ENODEV;
2242
2243 len = 0x80 * 2;
2244 edid = kmalloc(len, GFP_KERNEL);
2245 if (edid == NULL)
2246 return -ENOMEM;
2247
2248 r = display->driver->read_edid(display, edid, len);
2249 if (r < 0)
2250 goto err1;
2251
2252 specs = kzalloc(sizeof(*specs), GFP_KERNEL);
2253 if (specs == NULL) {
2254 r = -ENOMEM;
2255 goto err1;
2256 }
2257
2258 fb_edid_to_monspecs(edid, specs);
2259
2260 best_idx = -1;
2261
2262 for (i = 0; i < specs->modedb_len; ++i) {
2263 struct fb_videomode *m;
2264 struct omap_video_timings t;
2265
2266 m = &specs->modedb[i];
2267
2268 if (m->pixclock == 0)
2269 continue;
2270
2271
2272 if (m->xres == 2880 || m->xres == 1440)
2273 continue;
2274
2275 if (m->vmode & FB_VMODE_INTERLACED ||
2276 m->vmode & FB_VMODE_DOUBLE)
2277 continue;
2278
2279 fb_videomode_to_omap_timings(m, display, &t);
2280
2281 r = display->driver->check_timings(display, &t);
2282 if (r == 0) {
2283 best_idx = i;
2284 break;
2285 }
2286 }
2287
2288 if (best_idx == -1) {
2289 r = -ENOENT;
2290 goto err2;
2291 }
2292
2293 fb_videomode_to_omap_timings(&specs->modedb[best_idx], display,
2294 timings);
2295
2296 r = 0;
2297
2298err2:
2299 fb_destroy_modedb(specs->modedb);
2300 kfree(specs);
2301err1:
2302 kfree(edid);
2303
2304 return r;
2305}
2306
2307static int omapfb_init_display(struct omapfb2_device *fbdev,
2308 struct omap_dss_device *dssdev)
2309{
2310 struct omap_dss_driver *dssdrv = dssdev->driver;
2311 struct omapfb_display_data *d;
2312 int r;
2313
2314 r = dssdrv->enable(dssdev);
2315 if (r) {
2316 dev_warn(fbdev->dev, "Failed to enable display '%s'\n",
2317 dssdev->name);
2318 return r;
2319 }
2320
2321 d = get_display_data(fbdev, dssdev);
2322
2323 d->fbdev = fbdev;
2324
2325 if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
2326 u16 w, h;
2327
2328 if (auto_update) {
2329 omapfb_start_auto_update(fbdev, dssdev);
2330 d->update_mode = OMAPFB_AUTO_UPDATE;
2331 } else {
2332 d->update_mode = OMAPFB_MANUAL_UPDATE;
2333 }
2334
2335 if (dssdrv->enable_te) {
2336 r = dssdrv->enable_te(dssdev, 1);
2337 if (r) {
2338 dev_err(fbdev->dev, "Failed to set TE\n");
2339 return r;
2340 }
2341 }
2342
2343 dssdrv->get_resolution(dssdev, &w, &h);
2344 r = dssdrv->update(dssdev, 0, 0, w, h);
2345 if (r) {
2346 dev_err(fbdev->dev,
2347 "Failed to update display\n");
2348 return r;
2349 }
2350 } else {
2351 d->update_mode = OMAPFB_AUTO_UPDATE;
2352 }
2353
2354 return 0;
2355}
2356
2357static int omapfb_init_connections(struct omapfb2_device *fbdev,
2358 struct omap_dss_device *def_dssdev)
2359{
2360 int i, r;
2361 struct omap_overlay_manager *mgr;
2362
2363 r = def_dssdev->driver->connect(def_dssdev);
2364 if (r) {
2365 dev_err(fbdev->dev, "failed to connect default display\n");
2366 return r;
2367 }
2368
2369 for (i = 0; i < fbdev->num_displays; ++i) {
2370 struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
2371
2372 if (dssdev == def_dssdev)
2373 continue;
2374
2375
2376
2377
2378
2379 dssdev->driver->connect(dssdev);
2380 }
2381
2382 mgr = omapdss_find_mgr_from_display(def_dssdev);
2383
2384 if (!mgr) {
2385 dev_err(fbdev->dev, "no ovl manager for the default display\n");
2386 return -EINVAL;
2387 }
2388
2389 for (i = 0; i < fbdev->num_overlays; i++) {
2390 struct omap_overlay *ovl = fbdev->overlays[i];
2391
2392 if (ovl->manager)
2393 ovl->unset_manager(ovl);
2394
2395 r = ovl->set_manager(ovl, mgr);
2396 if (r)
2397 dev_warn(fbdev->dev,
2398 "failed to connect overlay %s to manager %s\n",
2399 ovl->name, mgr->name);
2400 }
2401
2402 return 0;
2403}
2404
2405static struct omap_dss_device *
2406omapfb_find_default_display(struct omapfb2_device *fbdev)
2407{
2408 const char *def_name;
2409 int i;
2410
2411
2412
2413
2414
2415
2416 def_name = omapdss_get_default_display_name();
2417
2418 if (def_name) {
2419 for (i = 0; i < fbdev->num_displays; ++i) {
2420 struct omap_dss_device *dssdev;
2421
2422 dssdev = fbdev->displays[i].dssdev;
2423
2424 if (dssdev->name && strcmp(def_name, dssdev->name) == 0)
2425 return dssdev;
2426
2427 if (strcmp(def_name, dssdev->alias) == 0)
2428 return dssdev;
2429 }
2430
2431
2432 return NULL;
2433 }
2434
2435
2436 for (i = 0; i < fbdev->num_displays; ++i) {
2437 struct omap_dss_device *dssdev;
2438 int id;
2439
2440 dssdev = fbdev->displays[i].dssdev;
2441
2442 if (dssdev->dev->of_node == NULL)
2443 continue;
2444
2445 id = of_alias_get_id(dssdev->dev->of_node, "display");
2446 if (id == 0)
2447 return dssdev;
2448 }
2449
2450
2451 return fbdev->displays[0].dssdev;
2452}
2453
2454static int omapfb_probe(struct platform_device *pdev)
2455{
2456 struct omapfb2_device *fbdev = NULL;
2457 int r = 0;
2458 int i;
2459 struct omap_dss_device *def_display;
2460 struct omap_dss_device *dssdev;
2461
2462 DBG("omapfb_probe\n");
2463
2464 if (omapdss_is_initialized() == false)
2465 return -EPROBE_DEFER;
2466
2467 if (pdev->num_resources != 0) {
2468 dev_err(&pdev->dev, "probed for an unknown device\n");
2469 r = -ENODEV;
2470 goto err0;
2471 }
2472
2473 fbdev = devm_kzalloc(&pdev->dev, sizeof(struct omapfb2_device),
2474 GFP_KERNEL);
2475 if (fbdev == NULL) {
2476 r = -ENOMEM;
2477 goto err0;
2478 }
2479
2480 if (def_vrfb && !omap_vrfb_supported()) {
2481 def_vrfb = 0;
2482 dev_warn(&pdev->dev, "VRFB is not supported on this hardware, "
2483 "ignoring the module parameter vrfb=y\n");
2484 }
2485
2486 r = omapdss_compat_init();
2487 if (r)
2488 goto err0;
2489
2490 mutex_init(&fbdev->mtx);
2491
2492 fbdev->dev = &pdev->dev;
2493 platform_set_drvdata(pdev, fbdev);
2494
2495 fbdev->num_displays = 0;
2496 dssdev = NULL;
2497 for_each_dss_dev(dssdev) {
2498 struct omapfb_display_data *d;
2499
2500 omap_dss_get_device(dssdev);
2501
2502 if (!dssdev->driver) {
2503 dev_warn(&pdev->dev, "no driver for display: %s\n",
2504 dssdev->name);
2505 omap_dss_put_device(dssdev);
2506 continue;
2507 }
2508
2509 d = &fbdev->displays[fbdev->num_displays++];
2510 d->dssdev = dssdev;
2511 if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
2512 d->update_mode = OMAPFB_MANUAL_UPDATE;
2513 else
2514 d->update_mode = OMAPFB_AUTO_UPDATE;
2515 }
2516
2517 if (fbdev->num_displays == 0) {
2518 dev_err(&pdev->dev, "no displays\n");
2519 r = -EPROBE_DEFER;
2520 goto cleanup;
2521 }
2522
2523 fbdev->num_overlays = omap_dss_get_num_overlays();
2524 for (i = 0; i < fbdev->num_overlays; i++)
2525 fbdev->overlays[i] = omap_dss_get_overlay(i);
2526
2527 fbdev->num_managers = omap_dss_get_num_overlay_managers();
2528 for (i = 0; i < fbdev->num_managers; i++)
2529 fbdev->managers[i] = omap_dss_get_overlay_manager(i);
2530
2531 def_display = omapfb_find_default_display(fbdev);
2532 if (def_display == NULL) {
2533 dev_err(fbdev->dev, "failed to find default display\n");
2534 r = -EPROBE_DEFER;
2535 goto cleanup;
2536 }
2537
2538 r = omapfb_init_connections(fbdev, def_display);
2539 if (r) {
2540 dev_err(fbdev->dev, "failed to init overlay connections\n");
2541 goto cleanup;
2542 }
2543
2544 if (def_mode && strlen(def_mode) > 0) {
2545 if (omapfb_parse_def_modes(fbdev))
2546 dev_warn(&pdev->dev, "cannot parse default modes\n");
2547 } else if (def_display && def_display->driver->set_timings &&
2548 def_display->driver->check_timings) {
2549 struct omap_video_timings t;
2550
2551 r = omapfb_find_best_mode(def_display, &t);
2552
2553 if (r == 0)
2554 def_display->driver->set_timings(def_display, &t);
2555 }
2556
2557 r = omapfb_create_framebuffers(fbdev);
2558 if (r)
2559 goto cleanup;
2560
2561 for (i = 0; i < fbdev->num_managers; i++) {
2562 struct omap_overlay_manager *mgr;
2563 mgr = fbdev->managers[i];
2564 r = mgr->apply(mgr);
2565 if (r)
2566 dev_warn(fbdev->dev, "failed to apply dispc config\n");
2567 }
2568
2569 DBG("mgr->apply'ed\n");
2570
2571 if (def_display) {
2572 r = omapfb_init_display(fbdev, def_display);
2573 if (r) {
2574 dev_err(fbdev->dev,
2575 "failed to initialize default "
2576 "display\n");
2577 goto cleanup;
2578 }
2579 }
2580
2581 DBG("create sysfs for fbs\n");
2582 r = omapfb_create_sysfs(fbdev);
2583 if (r) {
2584 dev_err(fbdev->dev, "failed to create sysfs entries\n");
2585 goto cleanup;
2586 }
2587
2588 if (def_display) {
2589 u16 w, h;
2590
2591 def_display->driver->get_resolution(def_display, &w, &h);
2592
2593 dev_info(fbdev->dev, "using display '%s' mode %dx%d\n",
2594 def_display->name, w, h);
2595 }
2596
2597 return 0;
2598
2599cleanup:
2600 omapfb_free_resources(fbdev);
2601 omapdss_compat_uninit();
2602err0:
2603 dev_err(&pdev->dev, "failed to setup omapfb\n");
2604 return r;
2605}
2606
2607static int omapfb_remove(struct platform_device *pdev)
2608{
2609 struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
2610
2611
2612
2613 omapfb_remove_sysfs(fbdev);
2614
2615 omapfb_free_resources(fbdev);
2616
2617 omapdss_compat_uninit();
2618
2619 return 0;
2620}
2621
2622static struct platform_driver omapfb_driver = {
2623 .probe = omapfb_probe,
2624 .remove = omapfb_remove,
2625 .driver = {
2626 .name = "omapfb",
2627 },
2628};
2629
2630module_param_named(mode, def_mode, charp, 0);
2631module_param_named(vram, def_vram, charp, 0);
2632module_param_named(rotate, def_rotate, int, 0);
2633module_param_named(vrfb, def_vrfb, bool, 0);
2634module_param_named(mirror, def_mirror, bool, 0);
2635
2636module_platform_driver(omapfb_driver);
2637
2638MODULE_ALIAS("platform:omapfb");
2639MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
2640MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
2641MODULE_LICENSE("GPL v2");
2642
