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OMAP: DSS2: move enable/disable_channel to overlay manager
[linux-2.6-block.git] / drivers / video / omap2 / omapfb / omapfb-main.c
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b39a982d
TV		 1/*
2 * linux/drivers/video/omap2/omapfb-main.c
3 *
4 * Copyright (C) 2008 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6 *
7 * Some code and ideas taken from drivers/video/omap/ driver
8 * by Imre Deak.
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 as published by
12 * the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * more details.
18 *
19 * You should have received a copy of the GNU General Public License along with
20 * this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23#include <linux/module.h>
24#include <linux/delay.h>
25#include <linux/fb.h>
26#include <linux/dma-mapping.h>
27#include <linux/vmalloc.h>
28#include <linux/device.h>
29#include <linux/platform_device.h>
30#include <linux/omapfb.h>
31
32#include <plat/display.h>
33#include <plat/vram.h>
34#include <plat/vrfb.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 int def_vrfb;
46static int def_rotate;
47static int def_mirror;
48
49#ifdef DEBUG
50unsigned int omapfb_debug;
51module_param_named(debug, omapfb_debug, bool, 0644);
52static unsigned int omapfb_test_pattern;
53module_param_named(test, omapfb_test_pattern, bool, 0644);
54#endif
55
56static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi);
57
58#ifdef DEBUG
59static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color)
60{
61 struct fb_var_screeninfo *var = &fbi->var;
62 struct fb_fix_screeninfo *fix = &fbi->fix;
63 void __iomem *addr = fbi->screen_base;
64 const unsigned bytespp = var->bits_per_pixel >> 3;
65 const unsigned line_len = fix->line_length / bytespp;
66
67 int r = (color >> 16) & 0xff;
68 int g = (color >> 8) & 0xff;
69 int b = (color >> 0) & 0xff;
70
71 if (var->bits_per_pixel == 16) {
72 u16 __iomem *p = (u16 __iomem *)addr;
73 p += y * line_len + x;
74
75 r = r * 32 / 256;
76 g = g * 64 / 256;
77 b = b * 32 / 256;
78
79 __raw_writew((r << 11) | (g << 5) | (b << 0), p);
80 } else if (var->bits_per_pixel == 24) {
81 u8 __iomem *p = (u8 __iomem *)addr;
82 p += (y * line_len + x) * 3;
83
84 __raw_writeb(b, p + 0);
85 __raw_writeb(g, p + 1);
86 __raw_writeb(r, p + 2);
87 } else if (var->bits_per_pixel == 32) {
88 u32 __iomem *p = (u32 __iomem *)addr;
89 p += y * line_len + x;
90 __raw_writel(color, p);
91 }
92}
93
94static void fill_fb(struct fb_info *fbi)
95{
96 struct fb_var_screeninfo *var = &fbi->var;
97 const short w = var->xres_virtual;
98 const short h = var->yres_virtual;
99 void __iomem *addr = fbi->screen_base;
100 int y, x;
101
102 if (!addr)
103 return;
104
105 DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length);
106
107 for (y = 0; y < h; y++) {
108 for (x = 0; x < w; x++) {
109 if (x < 20 && y < 20)
110 draw_pixel(fbi, x, y, 0xffffff);
111 else if (x < 20 && (y > 20 && y < h - 20))
112 draw_pixel(fbi, x, y, 0xff);
113 else if (y < 20 && (x > 20 && x < w - 20))
114 draw_pixel(fbi, x, y, 0xff00);
115 else if (x > w - 20 && (y > 20 && y < h - 20))
116 draw_pixel(fbi, x, y, 0xff0000);
117 else if (y > h - 20 && (x > 20 && x < w - 20))
118 draw_pixel(fbi, x, y, 0xffff00);
119 else if (x == 20 || x == w - 20 ||
120 y == 20 || y == h - 20)
121 draw_pixel(fbi, x, y, 0xffffff);
122 else if (x == y || w - x == h - y)
123 draw_pixel(fbi, x, y, 0xff00ff);
124 else if (w - x == y || x == h - y)
125 draw_pixel(fbi, x, y, 0x00ffff);
126 else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) {
127 int t = x * 3 / w;
128 unsigned r = 0, g = 0, b = 0;
129 unsigned c;
130 if (var->bits_per_pixel == 16) {
131 if (t == 0)
132 b = (y % 32) * 256 / 32;
133 else if (t == 1)
134 g = (y % 64) * 256 / 64;
135 else if (t == 2)
136 r = (y % 32) * 256 / 32;
137 } else {
138 if (t == 0)
139 b = (y % 256);
140 else if (t == 1)
141 g = (y % 256);
142 else if (t == 2)
143 r = (y % 256);
144 }
145 c = (r << 16) | (g << 8) | (b << 0);
146 draw_pixel(fbi, x, y, c);
147 } else {
148 draw_pixel(fbi, x, y, 0);
149 }
150 }
151 }
152}
153#endif
154
155static unsigned omapfb_get_vrfb_offset(struct omapfb_info *ofbi, int rot)
156{
157 struct vrfb *vrfb = &ofbi->region.vrfb;
158 unsigned offset;
159
160 switch (rot) {
161 case FB_ROTATE_UR:
162 offset = 0;
163 break;
164 case FB_ROTATE_CW:
165 offset = vrfb->yoffset;
166 break;
167 case FB_ROTATE_UD:
168 offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset;
169 break;
170 case FB_ROTATE_CCW:
171 offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN;
172 break;
173 default:
174 BUG();
175 }
176
177 offset *= vrfb->bytespp;
178
179 return offset;
180}
181
182static u32 omapfb_get_region_rot_paddr(struct omapfb_info *ofbi, int rot)
183{
184 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
185 return ofbi->region.vrfb.paddr[rot]
186 + omapfb_get_vrfb_offset(ofbi, rot);
187 } else {
188 return ofbi->region.paddr;
189 }
190}
191
192static u32 omapfb_get_region_paddr(struct omapfb_info *ofbi)
193{
194 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
195 return ofbi->region.vrfb.paddr[0];
196 else
197 return ofbi->region.paddr;
198}
199
200static void __iomem *omapfb_get_region_vaddr(struct omapfb_info *ofbi)
201{
202 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
203 return ofbi->region.vrfb.vaddr[0];
204 else
205 return ofbi->region.vaddr;
206}
207
208static struct omapfb_colormode omapfb_colormodes[] = {
209 {
210 .dssmode = OMAP_DSS_COLOR_UYVY,
211 .bits_per_pixel = 16,
212 .nonstd = OMAPFB_COLOR_YUV422,
213 }, {
214 .dssmode = OMAP_DSS_COLOR_YUV2,
215 .bits_per_pixel = 16,
216 .nonstd = OMAPFB_COLOR_YUY422,
217 }, {
218 .dssmode = OMAP_DSS_COLOR_ARGB16,
219 .bits_per_pixel = 16,
220 .red = { .length = 4, .offset = 8, .msb_right = 0 },
221 .green = { .length = 4, .offset = 4, .msb_right = 0 },
222 .blue = { .length = 4, .offset = 0, .msb_right = 0 },
223 .transp = { .length = 4, .offset = 12, .msb_right = 0 },
224 }, {
225 .dssmode = OMAP_DSS_COLOR_RGB16,
226 .bits_per_pixel = 16,
227 .red = { .length = 5, .offset = 11, .msb_right = 0 },
228 .green = { .length = 6, .offset = 5, .msb_right = 0 },
229 .blue = { .length = 5, .offset = 0, .msb_right = 0 },
230 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
231 }, {
232 .dssmode = OMAP_DSS_COLOR_RGB24P,
233 .bits_per_pixel = 24,
234 .red = { .length = 8, .offset = 16, .msb_right = 0 },
235 .green = { .length = 8, .offset = 8, .msb_right = 0 },
236 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
237 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
238 }, {
239 .dssmode = OMAP_DSS_COLOR_RGB24U,
240 .bits_per_pixel = 32,
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_ARGB32,
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 = 8, .offset = 24, .msb_right = 0 },
252 }, {
253 .dssmode = OMAP_DSS_COLOR_RGBA32,
254 .bits_per_pixel = 32,
255 .red = { .length = 8, .offset = 24, .msb_right = 0 },
256 .green = { .length = 8, .offset = 16, .msb_right = 0 },
257 .blue = { .length = 8, .offset = 8, .msb_right = 0 },
258 .transp = { .length = 8, .offset = 0, .msb_right = 0 },
259 }, {
260 .dssmode = OMAP_DSS_COLOR_RGBX32,
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 = 0, .offset = 0, .msb_right = 0 },
266 },
267};
268
269static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
270 struct omapfb_colormode *color)
271{
272 bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2)
273 {
274 return f1->length == f2->length &&
275 f1->offset == f2->offset &&
276 f1->msb_right == f2->msb_right;
277 }
278
279 if (var->bits_per_pixel == 0 ||
280 var->red.length == 0 ||
281 var->blue.length == 0 ||
282 var->green.length == 0)
283 return 0;
284
285 return var->bits_per_pixel == color->bits_per_pixel &&
286 cmp_component(&var->red, &color->red) &&
287 cmp_component(&var->green, &color->green) &&
288 cmp_component(&var->blue, &color->blue) &&
289 cmp_component(&var->transp, &color->transp);
290}
291
292static void assign_colormode_to_var(struct fb_var_screeninfo *var,
293 struct omapfb_colormode *color)
294{
295 var->bits_per_pixel = color->bits_per_pixel;
296 var->nonstd = color->nonstd;
297 var->red = color->red;
298 var->green = color->green;
299 var->blue = color->blue;
300 var->transp = color->transp;
301}
302
303static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var,
304 enum omap_color_mode *mode)
305{
306 enum omap_color_mode dssmode;
307 int i;
308
309 /* first match with nonstd field */
310 if (var->nonstd) {
311 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
312 struct omapfb_colormode *m = &omapfb_colormodes[i];
313 if (var->nonstd == m->nonstd) {
314 assign_colormode_to_var(var, m);
315 *mode = m->dssmode;
316 return 0;
317 }
318 }
319
320 return -EINVAL;
321 }
322
323 /* then try exact match of bpp and colors */
324 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
325 struct omapfb_colormode *m = &omapfb_colormodes[i];
326 if (cmp_var_to_colormode(var, m)) {
327 assign_colormode_to_var(var, m);
328 *mode = m->dssmode;
329 return 0;
330 }
331 }
332
333 /* match with bpp if user has not filled color fields
334 * properly */
335 switch (var->bits_per_pixel) {
336 case 1:
337 dssmode = OMAP_DSS_COLOR_CLUT1;
338 break;
339 case 2:
340 dssmode = OMAP_DSS_COLOR_CLUT2;
341 break;
342 case 4:
343 dssmode = OMAP_DSS_COLOR_CLUT4;
344 break;
345 case 8:
346 dssmode = OMAP_DSS_COLOR_CLUT8;
347 break;
348 case 12:
349 dssmode = OMAP_DSS_COLOR_RGB12U;
350 break;
351 case 16:
352 dssmode = OMAP_DSS_COLOR_RGB16;
353 break;
354 case 24:
355 dssmode = OMAP_DSS_COLOR_RGB24P;
356 break;
357 case 32:
358 dssmode = OMAP_DSS_COLOR_RGB24U;
359 break;
360 default:
361 return -EINVAL;
362 }
363
364 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
365 struct omapfb_colormode *m = &omapfb_colormodes[i];
366 if (dssmode == m->dssmode) {
367 assign_colormode_to_var(var, m);
368 *mode = m->dssmode;
369 return 0;
370 }
371 }
372
373 return -EINVAL;
374}
375
376static int check_fb_res_bounds(struct fb_var_screeninfo *var)
377{
378 int xres_min = OMAPFB_PLANE_XRES_MIN;
379 int xres_max = 2048;
380 int yres_min = OMAPFB_PLANE_YRES_MIN;
381 int yres_max = 2048;
382
383 /* XXX: some applications seem to set virtual res to 0. */
384 if (var->xres_virtual == 0)
385 var->xres_virtual = var->xres;
386
387 if (var->yres_virtual == 0)
388 var->yres_virtual = var->yres;
389
390 if (var->xres_virtual < xres_min || var->yres_virtual < yres_min)
391 return -EINVAL;
392
393 if (var->xres < xres_min)
394 var->xres = xres_min;
395 if (var->yres < yres_min)
396 var->yres = yres_min;
397 if (var->xres > xres_max)
398 var->xres = xres_max;
399 if (var->yres > yres_max)
400 var->yres = yres_max;
401
402 if (var->xres > var->xres_virtual)
403 var->xres = var->xres_virtual;
404 if (var->yres > var->yres_virtual)
405 var->yres = var->yres_virtual;
406
407 return 0;
408}
409
410static void shrink_height(unsigned long max_frame_size,
411 struct fb_var_screeninfo *var)
412{
413 DBG("can't fit FB into memory, reducing y\n");
414 var->yres_virtual = max_frame_size /
415 (var->xres_virtual * var->bits_per_pixel >> 3);
416
417 if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN)
418 var->yres_virtual = OMAPFB_PLANE_YRES_MIN;
419
420 if (var->yres > var->yres_virtual)
421 var->yres = var->yres_virtual;
422}
423
424static void shrink_width(unsigned long max_frame_size,
425 struct fb_var_screeninfo *var)
426{
427 DBG("can't fit FB into memory, reducing x\n");
428 var->xres_virtual = max_frame_size / var->yres_virtual /
429 (var->bits_per_pixel >> 3);
430
431 if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN)
432 var->xres_virtual = OMAPFB_PLANE_XRES_MIN;
433
434 if (var->xres > var->xres_virtual)
435 var->xres = var->xres_virtual;
436}
437
438static int check_vrfb_fb_size(unsigned long region_size,
439 const struct fb_var_screeninfo *var)
440{
441 unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual,
442 var->yres_virtual, var->bits_per_pixel >> 3);
443
444 return min_phys_size > region_size ? -EINVAL : 0;
445}
446
447static int check_fb_size(const struct omapfb_info *ofbi,
448 struct fb_var_screeninfo *var)
449{
450 unsigned long max_frame_size = ofbi->region.size;
451 int bytespp = var->bits_per_pixel >> 3;
452 unsigned long line_size = var->xres_virtual * bytespp;
453
454 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
455 /* One needs to check for both VRFB and OMAPFB limitations. */
456 if (check_vrfb_fb_size(max_frame_size, var))
457 shrink_height(omap_vrfb_max_height(
458 max_frame_size, var->xres_virtual, bytespp) *
459 line_size, var);
460
461 if (check_vrfb_fb_size(max_frame_size, var)) {
462 DBG("cannot fit FB to memory\n");
463 return -EINVAL;
464 }
465
466 return 0;
467 }
468
469 DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size);
470
471 if (line_size * var->yres_virtual > max_frame_size)
472 shrink_height(max_frame_size, var);
473
474 if (line_size * var->yres_virtual > max_frame_size) {
475 shrink_width(max_frame_size, var);
476 line_size = var->xres_virtual * bytespp;
477 }
478
479 if (line_size * var->yres_virtual > max_frame_size) {
480 DBG("cannot fit FB to memory\n");
481 return -EINVAL;
482 }
483
484 return 0;
485}
486
487/*
488 * Consider if VRFB assisted rotation is in use and if the virtual space for
489 * the zero degree view needs to be mapped. The need for mapping also acts as
490 * the trigger for setting up the hardware on the context in question. This
491 * ensures that one does not attempt to access the virtual view before the
492 * hardware is serving the address translations.
493 */
494static int setup_vrfb_rotation(struct fb_info *fbi)
495{
496 struct omapfb_info *ofbi = FB2OFB(fbi);
497 struct omapfb2_mem_region *rg = &ofbi->region;
498 struct vrfb *vrfb = &rg->vrfb;
499 struct fb_var_screeninfo *var = &fbi->var;
500 struct fb_fix_screeninfo *fix = &fbi->fix;
501 unsigned bytespp;
502 bool yuv_mode;
503 enum omap_color_mode mode;
504 int r;
505 bool reconf;
506
507 if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB)
508 return 0;
509
510 DBG("setup_vrfb_rotation\n");
511
512 r = fb_mode_to_dss_mode(var, &mode);
513 if (r)
514 return r;
515
516 bytespp = var->bits_per_pixel >> 3;
517
518 yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY;
519
520 /* We need to reconfigure VRFB if the resolution changes, if yuv mode
521 * is enabled/disabled, or if bytes per pixel changes */
522
523 /* XXX we shouldn't allow this when framebuffer is mmapped */
524
525 reconf = false;
526
527 if (yuv_mode != vrfb->yuv_mode)
528 reconf = true;
529 else if (bytespp != vrfb->bytespp)
530 reconf = true;
531 else if (vrfb->xres != var->xres_virtual ||
532 vrfb->yres != var->yres_virtual)
533 reconf = true;
534
535 if (vrfb->vaddr[0] && reconf) {
536 fbi->screen_base = NULL;
537 fix->smem_start = 0;
538 fix->smem_len = 0;
539 iounmap(vrfb->vaddr[0]);
540 vrfb->vaddr[0] = NULL;
541 DBG("setup_vrfb_rotation: reset fb\n");
542 }
543
544 if (vrfb->vaddr[0])
545 return 0;
546
547 omap_vrfb_setup(&rg->vrfb, rg->paddr,
548 var->xres_virtual,
549 var->yres_virtual,
550 bytespp, yuv_mode);
551
552 /* Now one can ioremap the 0 angle view */
553 r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0);
554 if (r)
555 return r;
556
557 /* used by open/write in fbmem.c */
558 fbi->screen_base = ofbi->region.vrfb.vaddr[0];
559
560 fix->smem_start = ofbi->region.vrfb.paddr[0];
561
562 switch (var->nonstd) {
563 case OMAPFB_COLOR_YUV422:
564 case OMAPFB_COLOR_YUY422:
565 fix->line_length =
566 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
567 break;
568 default:
569 fix->line_length =
570 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
571 break;
572 }
573
574 fix->smem_len = var->yres_virtual * fix->line_length;
575
576 return 0;
577}
578
579int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
580 struct fb_var_screeninfo *var)
581{
582 int i;
583
584 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
585 struct omapfb_colormode *mode = &omapfb_colormodes[i];
586 if (dssmode == mode->dssmode) {
587 assign_colormode_to_var(var, mode);
588 return 0;
589 }
590 }
591 return -ENOENT;
592}
593
594void set_fb_fix(struct fb_info *fbi)
595{
596 struct fb_fix_screeninfo *fix = &fbi->fix;
597 struct fb_var_screeninfo *var = &fbi->var;
598 struct omapfb_info *ofbi = FB2OFB(fbi);
599 struct omapfb2_mem_region *rg = &ofbi->region;
600
601 DBG("set_fb_fix\n");
602
603 /* used by open/write in fbmem.c */
604 fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi);
605
606 /* used by mmap in fbmem.c */
607 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
608 switch (var->nonstd) {
609 case OMAPFB_COLOR_YUV422:
610 case OMAPFB_COLOR_YUY422:
611 fix->line_length =
612 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
613 break;
614 default:
615 fix->line_length =
616 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
617 break;
618 }
619
620 fix->smem_len = var->yres_virtual * fix->line_length;
621 } else {
622 fix->line_length =
623 (var->xres_virtual * var->bits_per_pixel) >> 3;
624 fix->smem_len = rg->size;
625 }
626
627 fix->smem_start = omapfb_get_region_paddr(ofbi);
628
629 fix->type = FB_TYPE_PACKED_PIXELS;
630
631 if (var->nonstd)
632 fix->visual = FB_VISUAL_PSEUDOCOLOR;
633 else {
634 switch (var->bits_per_pixel) {
635 case 32:
636 case 24:
637 case 16:
638 case 12:
639 fix->visual = FB_VISUAL_TRUECOLOR;
640 /* 12bpp is stored in 16 bits */
641 break;
642 case 1:
643 case 2:
644 case 4:
645 case 8:
646 fix->visual = FB_VISUAL_PSEUDOCOLOR;
647 break;
648 }
649 }
650
651 fix->accel = FB_ACCEL_NONE;
652
653 fix->xpanstep = 1;
654 fix->ypanstep = 1;
655}
656
657/* check new var and possibly modify it to be ok */
658int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
659{
660 struct omapfb_info *ofbi = FB2OFB(fbi);
661 struct omap_dss_device *display = fb2display(fbi);
662 enum omap_color_mode mode = 0;
663 int i;
664 int r;
665
666 DBG("check_fb_var %d\n", ofbi->id);
667
668 if (ofbi->region.size == 0)
669 return 0;
670
671 r = fb_mode_to_dss_mode(var, &mode);
672 if (r) {
673 DBG("cannot convert var to omap dss mode\n");
674 return r;
675 }
676
677 for (i = 0; i < ofbi->num_overlays; ++i) {
678 if ((ofbi->overlays[i]->supported_modes & mode) == 0) {
679 DBG("invalid mode\n");
680 return -EINVAL;
681 }
682 }
683
684 if (var->rotate < 0 || var->rotate > 3)
685 return -EINVAL;
686
687 if (check_fb_res_bounds(var))
688 return -EINVAL;
689
690 if (check_fb_size(ofbi, var))
691 return -EINVAL;
692
693 if (var->xres + var->xoffset > var->xres_virtual)
694 var->xoffset = var->xres_virtual - var->xres;
695 if (var->yres + var->yoffset > var->yres_virtual)
696 var->yoffset = var->yres_virtual - var->yres;
697
698 DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
699 var->xres, var->yres,
700 var->xres_virtual, var->yres_virtual);
701
702 var->height = -1;
703 var->width = -1;
704 var->grayscale = 0;
705
706 if (display && display->get_timings) {
707 struct omap_video_timings timings;
708 display->get_timings(display, &timings);
709
710 /* pixclock in ps, the rest in pixclock */
711 var->pixclock = timings.pixel_clock != 0 ?
712 KHZ2PICOS(timings.pixel_clock) :
713 0;
714 var->left_margin = timings.hfp;
715 var->right_margin = timings.hbp;
716 var->upper_margin = timings.vfp;
717 var->lower_margin = timings.vbp;
718 var->hsync_len = timings.hsw;
719 var->vsync_len = timings.vsw;
720 } else {
721 var->pixclock = 0;
722 var->left_margin = 0;
723 var->right_margin = 0;
724 var->upper_margin = 0;
725 var->lower_margin = 0;
726 var->hsync_len = 0;
727 var->vsync_len = 0;
728 }
729
730 /* TODO: get these from panel->config */
731 var->vmode = FB_VMODE_NONINTERLACED;
732 var->sync = 0;
733
734 return 0;
735}
736
737/*
738 * ---------------------------------------------------------------------------
739 * fbdev framework callbacks
740 * ---------------------------------------------------------------------------
741 */
742static int omapfb_open(struct fb_info *fbi, int user)
743{
744 return 0;
745}
746
747static int omapfb_release(struct fb_info *fbi, int user)
748{
749#if 0
750 struct omapfb_info *ofbi = FB2OFB(fbi);
751 struct omapfb2_device *fbdev = ofbi->fbdev;
752 struct omap_dss_device *display = fb2display(fbi);
753
754 DBG("Closing fb with plane index %d\n", ofbi->id);
755
756 omapfb_lock(fbdev);
757
758 if (display && display->get_update_mode && display->update) {
759 /* XXX this update should be removed, I think. But it's
760 * good for debugging */
761 if (display->get_update_mode(display) ==
762 OMAP_DSS_UPDATE_MANUAL) {
763 u16 w, h;
764
765 if (display->sync)
766 display->sync(display);
767
768 display->get_resolution(display, &w, &h);
769 display->update(display, 0, 0, w, h);
770 }
771 }
772
773 if (display && display->sync)
774 display->sync(display);
775
776 omapfb_unlock(fbdev);
777#endif
778 return 0;
779}
780
781static unsigned calc_rotation_offset_dma(struct fb_var_screeninfo *var,
782 struct fb_fix_screeninfo *fix, int rotation)
783{
784 unsigned offset;
785
786 offset = var->yoffset * fix->line_length +
787 var->xoffset * (var->bits_per_pixel >> 3);
788
789 return offset;
790}
791
792static unsigned calc_rotation_offset_vrfb(struct fb_var_screeninfo *var,
793 struct fb_fix_screeninfo *fix, int rotation)
794{
795 unsigned offset;
796
797 if (rotation == FB_ROTATE_UD)
798 offset = (var->yres_virtual - var->yres) *
799 fix->line_length;
800 else if (rotation == FB_ROTATE_CW)
801 offset = (var->yres_virtual - var->yres) *
802 (var->bits_per_pixel >> 3);
803 else
804 offset = 0;
805
806 if (rotation == FB_ROTATE_UR)
807 offset += var->yoffset * fix->line_length +
808 var->xoffset * (var->bits_per_pixel >> 3);
809 else if (rotation == FB_ROTATE_UD)
810 offset -= var->yoffset * fix->line_length +
811 var->xoffset * (var->bits_per_pixel >> 3);
812 else if (rotation == FB_ROTATE_CW)
813 offset -= var->xoffset * fix->line_length +
814 var->yoffset * (var->bits_per_pixel >> 3);
815 else if (rotation == FB_ROTATE_CCW)
816 offset += var->xoffset * fix->line_length +
817 var->yoffset * (var->bits_per_pixel >> 3);
818
819 return offset;
820}
821
822
823/* setup overlay according to the fb */
824static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
825 u16 posx, u16 posy, u16 outw, u16 outh)
826{
827 int r = 0;
828 struct omapfb_info *ofbi = FB2OFB(fbi);
829 struct fb_var_screeninfo *var = &fbi->var;
830 struct fb_fix_screeninfo *fix = &fbi->fix;
831 enum omap_color_mode mode = 0;
832 int offset;
833 u32 data_start_p;
834 void __iomem *data_start_v;
835 struct omap_overlay_info info;
836 int xres, yres;
837 int screen_width;
838 int mirror;
839 int rotation = var->rotate;
840 int i;
841
842 for (i = 0; i < ofbi->num_overlays; i++) {
843 if (ovl != ofbi->overlays[i])
844 continue;
845
846 rotation = (rotation + ofbi->rotation[i]) % 4;
847 break;
848 }
849
850 DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id,
851 posx, posy, outw, outh);
852
853 if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) {
854 xres = var->yres;
855 yres = var->xres;
856 } else {
857 xres = var->xres;
858 yres = var->yres;
859 }
860
861
862 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
863 data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
864 data_start_v = NULL;
865 } else {
866 data_start_p = omapfb_get_region_paddr(ofbi);
867 data_start_v = omapfb_get_region_vaddr(ofbi);
868 }
869
870 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
871 offset = calc_rotation_offset_vrfb(var, fix, rotation);
872 else
873 offset = calc_rotation_offset_dma(var, fix, rotation);
874
875 data_start_p += offset;
876 data_start_v += offset;
877
878 if (offset)
879 DBG("offset %d, %d = %d\n",
880 var->xoffset, var->yoffset, offset);
881
882 DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v);
883
884 r = fb_mode_to_dss_mode(var, &mode);
885 if (r) {
886 DBG("fb_mode_to_dss_mode failed");
887 goto err;
888 }
889
890 switch (var->nonstd) {
891 case OMAPFB_COLOR_YUV422:
892 case OMAPFB_COLOR_YUY422:
893 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
894 screen_width = fix->line_length
895 / (var->bits_per_pixel >> 2);
896 break;
897 }
898 default:
899 screen_width = fix->line_length / (var->bits_per_pixel >> 3);
900 break;
901 }
902
903 ovl->get_overlay_info(ovl, &info);
904
905 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
906 mirror = 0;
907 else
908 mirror = ofbi->mirror;
909
910 info.paddr = data_start_p;
911 info.vaddr = data_start_v;
912 info.screen_width = screen_width;
913 info.width = xres;
914 info.height = yres;
915 info.color_mode = mode;
916 info.rotation_type = ofbi->rotation_type;
917 info.rotation = rotation;
918 info.mirror = mirror;
919
920 info.pos_x = posx;
921 info.pos_y = posy;
922 info.out_width = outw;
923 info.out_height = outh;
924
925 r = ovl->set_overlay_info(ovl, &info);
926 if (r) {
927 DBG("ovl->setup_overlay_info failed\n");
928 goto err;
929 }
930
931 return 0;
932
933err:
934 DBG("setup_overlay failed\n");
935 return r;
936}
937
938/* apply var to the overlay */
939int omapfb_apply_changes(struct fb_info *fbi, int init)
940{
941 int r = 0;
942 struct omapfb_info *ofbi = FB2OFB(fbi);
943 struct fb_var_screeninfo *var = &fbi->var;
944 struct omap_overlay *ovl;
945 u16 posx, posy;
946 u16 outw, outh;
947 int i;
948
949#ifdef DEBUG
950 if (omapfb_test_pattern)
951 fill_fb(fbi);
952#endif
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 /* the fb is not available. disable the overlay */
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 outw = ovl->info.out_width;
979 outh = ovl->info.out_height;
980 }
981
982 if (init) {
983 posx = 0;
984 posy = 0;
985 } else {
986 posx = ovl->info.pos_x;
987 posy = ovl->info.pos_y;
988 }
989
990 r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
991 if (r)
992 goto err;
993
994 if (!init && ovl->manager)
995 ovl->manager->apply(ovl->manager);
996 }
997 return 0;
998err:
999 DBG("apply_changes failed\n");
1000 return r;
1001}
1002
1003/* checks var and eventually tweaks it to something supported,
1004 * DO NOT MODIFY PAR */
1005static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
1006{
1007 int r;
1008
1009 DBG("check_var(%d)\n", FB2OFB(fbi)->id);
1010
1011 r = check_fb_var(fbi, var);
1012
1013 return r;
1014}
1015
1016/* set the video mode according to info->var */
1017static int omapfb_set_par(struct fb_info *fbi)
1018{
1019 int r;
1020
1021 DBG("set_par(%d)\n", FB2OFB(fbi)->id);
1022
1023 set_fb_fix(fbi);
1024
1025 r = setup_vrfb_rotation(fbi);
1026 if (r)
1027 return r;
1028
1029 r = omapfb_apply_changes(fbi, 0);
1030
1031 return r;
1032}
1033
1034static int omapfb_pan_display(struct fb_var_screeninfo *var,
1035 struct fb_info *fbi)
1036{
1037 struct fb_var_screeninfo new_var;
1038 int r;
1039
1040 DBG("pan_display(%d)\n", FB2OFB(fbi)->id);
1041
1042 if (var->xoffset == fbi->var.xoffset &&
1043 var->yoffset == fbi->var.yoffset)
1044 return 0;
1045
1046 new_var = fbi->var;
1047 new_var.xoffset = var->xoffset;
1048 new_var.yoffset = var->yoffset;
1049
1050 fbi->var = new_var;
1051
1052 r = omapfb_apply_changes(fbi, 0);
1053
1054 return r;
1055}
1056
1057static void mmap_user_open(struct vm_area_struct *vma)
1058{
1059 struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
1060
1061 atomic_inc(&ofbi->map_count);
1062}
1063
1064static void mmap_user_close(struct vm_area_struct *vma)
1065{
1066 struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
1067
1068 atomic_dec(&ofbi->map_count);
1069}
1070
1071static struct vm_operations_struct mmap_user_ops = {
1072 .open = mmap_user_open,
1073 .close = mmap_user_close,
1074};
1075
1076static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
1077{
1078 struct omapfb_info *ofbi = FB2OFB(fbi);
1079 struct fb_fix_screeninfo *fix = &fbi->fix;
1080 unsigned long off;
1081 unsigned long start;
1082 u32 len;
1083
1084 if (vma->vm_end - vma->vm_start == 0)
1085 return 0;
1086 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
1087 return -EINVAL;
1088 off = vma->vm_pgoff << PAGE_SHIFT;
1089
1090 start = omapfb_get_region_paddr(ofbi);
1091 len = fix->smem_len;
1092 if (off >= len)
1093 return -EINVAL;
1094 if ((vma->vm_end - vma->vm_start + off) > len)
1095 return -EINVAL;
1096
1097 off += start;
1098
1099 DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off);
1100
1101 vma->vm_pgoff = off >> PAGE_SHIFT;
1102 vma->vm_flags |= VM_IO | VM_RESERVED;
1103 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
1104 vma->vm_ops = &mmap_user_ops;
1105 vma->vm_private_data = ofbi;
1106 if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
1107 vma->vm_end - vma->vm_start, vma->vm_page_prot))
1108 return -EAGAIN;
1109 /* vm_ops.open won't be called for mmap itself. */
1110 atomic_inc(&ofbi->map_count);
1111 return 0;
1112}
1113
1114/* Store a single color palette entry into a pseudo palette or the hardware
1115 * palette if one is available. For now we support only 16bpp and thus store
1116 * the entry only to the pseudo palette.
1117 */
1118static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
1119 u_int blue, u_int transp, int update_hw_pal)
1120{
1121 /*struct omapfb_info *ofbi = FB2OFB(fbi);*/
1122 /*struct omapfb2_device *fbdev = ofbi->fbdev;*/
1123 struct fb_var_screeninfo *var = &fbi->var;
1124 int r = 0;
1125
1126 enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */
1127
1128 /*switch (plane->color_mode) {*/
1129 switch (mode) {
1130 case OMAPFB_COLOR_YUV422:
1131 case OMAPFB_COLOR_YUV420:
1132 case OMAPFB_COLOR_YUY422:
1133 r = -EINVAL;
1134 break;
1135 case OMAPFB_COLOR_CLUT_8BPP:
1136 case OMAPFB_COLOR_CLUT_4BPP:
1137 case OMAPFB_COLOR_CLUT_2BPP:
1138 case OMAPFB_COLOR_CLUT_1BPP:
1139 /*
1140 if (fbdev->ctrl->setcolreg)
1141 r = fbdev->ctrl->setcolreg(regno, red, green, blue,
1142 transp, update_hw_pal);
1143 */
1144 /* Fallthrough */
1145 r = -EINVAL;
1146 break;
1147 case OMAPFB_COLOR_RGB565:
1148 case OMAPFB_COLOR_RGB444:
1149 case OMAPFB_COLOR_RGB24P:
1150 case OMAPFB_COLOR_RGB24U:
1151 if (r != 0)
1152 break;
1153
1154 if (regno < 0) {
1155 r = -EINVAL;
1156 break;
1157 }
1158
1159 if (regno < 16) {
1160 u16 pal;
1161 pal = ((red >> (16 - var->red.length)) <<
1162 var->red.offset) |
1163 ((green >> (16 - var->green.length)) <<
1164 var->green.offset) |
1165 (blue >> (16 - var->blue.length));
1166 ((u32 *)(fbi->pseudo_palette))[regno] = pal;
1167 }
1168 break;
1169 default:
1170 BUG();
1171 }
1172 return r;
1173}
1174
1175static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
1176 u_int transp, struct fb_info *info)
1177{
1178 DBG("setcolreg\n");
1179
1180 return _setcolreg(info, regno, red, green, blue, transp, 1);
1181}
1182
1183static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
1184{
1185 int count, index, r;
1186 u16 *red, *green, *blue, *transp;
1187 u16 trans = 0xffff;
1188
1189 DBG("setcmap\n");
1190
1191 red = cmap->red;
1192 green = cmap->green;
1193 blue = cmap->blue;
1194 transp = cmap->transp;
1195 index = cmap->start;
1196
1197 for (count = 0; count < cmap->len; count++) {
1198 if (transp)
1199 trans = *transp++;
1200 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
1201 count == cmap->len - 1);
1202 if (r != 0)
1203 return r;
1204 }
1205
1206 return 0;
1207}
1208
1209static int omapfb_blank(int blank, struct fb_info *fbi)
1210{
1211 struct omapfb_info *ofbi = FB2OFB(fbi);
1212 struct omapfb2_device *fbdev = ofbi->fbdev;
1213 struct omap_dss_device *display = fb2display(fbi);
1214 int do_update = 0;
1215 int r = 0;
1216
1217 omapfb_lock(fbdev);
1218
1219 switch (blank) {
1220 case FB_BLANK_UNBLANK:
1221 if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
1222 goto exit;
1223
1224 if (display->resume)
1225 r = display->resume(display);
1226
1227 if (r == 0 && display->get_update_mode &&
1228 display->get_update_mode(display) ==
1229 OMAP_DSS_UPDATE_MANUAL)
1230 do_update = 1;
1231
1232 break;
1233
1234 case FB_BLANK_NORMAL:
1235 /* FB_BLANK_NORMAL could be implemented.
1236 * Needs DSS additions. */
1237 case FB_BLANK_VSYNC_SUSPEND:
1238 case FB_BLANK_HSYNC_SUSPEND:
1239 case FB_BLANK_POWERDOWN:
1240 if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
1241 goto exit;
1242
1243 if (display->suspend)
1244 r = display->suspend(display);
1245
1246 break;
1247
1248 default:
1249 r = -EINVAL;
1250 }
1251
1252exit:
1253 omapfb_unlock(fbdev);
1254
1255 if (r == 0 && do_update && display->update) {
1256 u16 w, h;
1257 display->get_resolution(display, &w, &h);
1258
1259 r = display->update(display, 0, 0, w, h);
1260 }
1261
1262 return r;
1263}
1264
1265#if 0
1266/* XXX fb_read and fb_write are needed for VRFB */
1267ssize_t omapfb_write(struct fb_info *info, const char __user *buf,
1268 size_t count, loff_t *ppos)
1269{
1270 DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos);
1271 /* XXX needed for VRFB */
1272 return count;
1273}
1274#endif
1275
1276static struct fb_ops omapfb_ops = {
1277 .owner = THIS_MODULE,
1278 .fb_open = omapfb_open,
1279 .fb_release = omapfb_release,
1280 .fb_fillrect = cfb_fillrect,
1281 .fb_copyarea = cfb_copyarea,
1282 .fb_imageblit = cfb_imageblit,
1283 .fb_blank = omapfb_blank,
1284 .fb_ioctl = omapfb_ioctl,
1285 .fb_check_var = omapfb_check_var,
1286 .fb_set_par = omapfb_set_par,
1287 .fb_pan_display = omapfb_pan_display,
1288 .fb_mmap = omapfb_mmap,
1289 .fb_setcolreg = omapfb_setcolreg,
1290 .fb_setcmap = omapfb_setcmap,
1291 /*.fb_write = omapfb_write,*/
1292};
1293
1294static void omapfb_free_fbmem(struct fb_info *fbi)
1295{
1296 struct omapfb_info *ofbi = FB2OFB(fbi);
1297 struct omapfb2_device *fbdev = ofbi->fbdev;
1298 struct omapfb2_mem_region *rg;
1299
1300 rg = &ofbi->region;
1301
1302 if (rg->paddr)
1303 if (omap_vram_free(rg->paddr, rg->size))
1304 dev_err(fbdev->dev, "VRAM FREE failed\n");
1305
1306 if (rg->vaddr)
1307 iounmap(rg->vaddr);
1308
1309 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1310 /* unmap the 0 angle rotation */
1311 if (rg->vrfb.vaddr[0]) {
1312 iounmap(rg->vrfb.vaddr[0]);
1313 omap_vrfb_release_ctx(&rg->vrfb);
f3a82d11 1314 rg->vrfb.vaddr[0] = NULL;
b39a982d
TV		 1315 }
1316 }
1317
1318 rg->vaddr = NULL;
1319 rg->paddr = 0;
1320 rg->alloc = 0;
1321 rg->size = 0;
1322}
1323
1324static void clear_fb_info(struct fb_info *fbi)
1325{
1326 memset(&fbi->var, 0, sizeof(fbi->var));
1327 memset(&fbi->fix, 0, sizeof(fbi->fix));
1328 strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id));
1329}
1330
1331static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
1332{
1333 int i;
1334
1335 DBG("free all fbmem\n");
1336
1337 for (i = 0; i < fbdev->num_fbs; i++) {
1338 struct fb_info *fbi = fbdev->fbs[i];
1339 omapfb_free_fbmem(fbi);
1340 clear_fb_info(fbi);
1341 }
1342
1343 return 0;
1344}
1345
1346static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
1347 unsigned long paddr)
1348{
1349 struct omapfb_info *ofbi = FB2OFB(fbi);
1350 struct omapfb2_device *fbdev = ofbi->fbdev;
1351 struct omapfb2_mem_region *rg;
1352 void __iomem *vaddr;
1353 int r;
1354
1355 rg = &ofbi->region;
1356 memset(rg, 0, sizeof(*rg));
1357
1358 size = PAGE_ALIGN(size);
1359
1360 if (!paddr) {
1361 DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
1362 r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr);
1363 } else {
1364 DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr,
1365 ofbi->id);
1366 r = omap_vram_reserve(paddr, size);
1367 }
1368
1369 if (r) {
1370 dev_err(fbdev->dev, "failed to allocate framebuffer\n");
1371 return -ENOMEM;
1372 }
1373
1374 if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) {
1375 vaddr = ioremap_wc(paddr, size);
1376
1377 if (!vaddr) {
1378 dev_err(fbdev->dev, "failed to ioremap framebuffer\n");
1379 omap_vram_free(paddr, size);
1380 return -ENOMEM;
1381 }
1382
1383 DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr);
1384 } else {
1385 r = omap_vrfb_request_ctx(&rg->vrfb);
1386 if (r) {
1387 dev_err(fbdev->dev, "vrfb create ctx failed\n");
1388 return r;
1389 }
1390
1391 vaddr = NULL;
1392 }
1393
1394 rg->paddr = paddr;
1395 rg->vaddr = vaddr;
1396 rg->size = size;
1397 rg->alloc = 1;
1398
1399 return 0;
1400}
1401
1402/* allocate fbmem using display resolution as reference */
1403static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
1404 unsigned long paddr)
1405{
1406 struct omapfb_info *ofbi = FB2OFB(fbi);
1407 struct omap_dss_device *display;
1408 int bytespp;
1409
1410 display = fb2display(fbi);
1411
1412 if (!display)
1413 return 0;
1414
1415 switch (display->get_recommended_bpp(display)) {
1416 case 16:
1417 bytespp = 2;
1418 break;
1419 case 24:
1420 bytespp = 4;
1421 break;
1422 default:
1423 bytespp = 4;
1424 break;
1425 }
1426
1427 if (!size) {
1428 u16 w, h;
1429
1430 display->get_resolution(display, &w, &h);
1431
1432 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1433 size = max(omap_vrfb_min_phys_size(w, h, bytespp),
1434 omap_vrfb_min_phys_size(h, w, bytespp));
1435
1436 DBG("adjusting fb mem size for VRFB, %u -> %lu\n",
1437 w * h * bytespp, size);
1438 } else {
1439 size = w * h * bytespp;
1440 }
1441 }
1442
1443 if (!size)
1444 return 0;
1445
1446 return omapfb_alloc_fbmem(fbi, size, paddr);
1447}
1448
1449static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt)
1450{
1451 enum omap_color_mode mode;
1452
1453 switch (fmt) {
1454 case OMAPFB_COLOR_RGB565:
1455 mode = OMAP_DSS_COLOR_RGB16;
1456 break;
1457 case OMAPFB_COLOR_YUV422:
1458 mode = OMAP_DSS_COLOR_YUV2;
1459 break;
1460 case OMAPFB_COLOR_CLUT_8BPP:
1461 mode = OMAP_DSS_COLOR_CLUT8;
1462 break;
1463 case OMAPFB_COLOR_CLUT_4BPP:
1464 mode = OMAP_DSS_COLOR_CLUT4;
1465 break;
1466 case OMAPFB_COLOR_CLUT_2BPP:
1467 mode = OMAP_DSS_COLOR_CLUT2;
1468 break;
1469 case OMAPFB_COLOR_CLUT_1BPP:
1470 mode = OMAP_DSS_COLOR_CLUT1;
1471 break;
1472 case OMAPFB_COLOR_RGB444:
1473 mode = OMAP_DSS_COLOR_RGB12U;
1474 break;
1475 case OMAPFB_COLOR_YUY422:
1476 mode = OMAP_DSS_COLOR_UYVY;
1477 break;
1478 case OMAPFB_COLOR_ARGB16:
1479 mode = OMAP_DSS_COLOR_ARGB16;
1480 break;
1481 case OMAPFB_COLOR_RGB24U:
1482 mode = OMAP_DSS_COLOR_RGB24U;
1483 break;
1484 case OMAPFB_COLOR_RGB24P:
1485 mode = OMAP_DSS_COLOR_RGB24P;
1486 break;
1487 case OMAPFB_COLOR_ARGB32:
1488 mode = OMAP_DSS_COLOR_ARGB32;
1489 break;
1490 case OMAPFB_COLOR_RGBA32:
1491 mode = OMAP_DSS_COLOR_RGBA32;
1492 break;
1493 case OMAPFB_COLOR_RGBX32:
1494 mode = OMAP_DSS_COLOR_RGBX32;
1495 break;
1496 default:
1497 mode = -EINVAL;
1498 }
1499
1500 return mode;
1501}
1502
1503static int omapfb_parse_vram_param(const char *param, int max_entries,
1504 unsigned long *sizes, unsigned long *paddrs)
1505{
1506 int fbnum;
1507 unsigned long size;
1508 unsigned long paddr = 0;
1509 char *p, *start;
1510
1511 start = (char *)param;
1512
1513 while (1) {
1514 p = start;
1515
1516 fbnum = simple_strtoul(p, &p, 10);
1517
1518 if (p == param)
1519 return -EINVAL;
1520
1521 if (*p != ':')
1522 return -EINVAL;
1523
1524 if (fbnum >= max_entries)
1525 return -EINVAL;
1526
1527 size = memparse(p + 1, &p);
1528
1529 if (!size)
1530 return -EINVAL;
1531
1532 paddr = 0;
1533
1534 if (*p == '@') {
1535 paddr = simple_strtoul(p + 1, &p, 16);
1536
1537 if (!paddr)
1538 return -EINVAL;
1539
1540 }
1541
1542 paddrs[fbnum] = paddr;
1543 sizes[fbnum] = size;
1544
1545 if (*p == 0)
1546 break;
1547
1548 if (*p != ',')
1549 return -EINVAL;
1550
1551 ++p;
1552
1553 start = p;
1554 }
1555
1556 return 0;
1557}
1558
1559static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev)
1560{
1561 int i, r;
1562 unsigned long vram_sizes[10];
1563 unsigned long vram_paddrs[10];
1564
1565 memset(&vram_sizes, 0, sizeof(vram_sizes));
1566 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1567
1568 if (def_vram && omapfb_parse_vram_param(def_vram, 10,
1569 vram_sizes, vram_paddrs)) {
1570 dev_err(fbdev->dev, "failed to parse vram parameter\n");
1571
1572 memset(&vram_sizes, 0, sizeof(vram_sizes));
1573 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1574 }
1575
1576 if (fbdev->dev->platform_data) {
1577 struct omapfb_platform_data *opd;
1578 opd = fbdev->dev->platform_data;
1579 for (i = 0; i < opd->mem_desc.region_cnt; ++i) {
1580 if (!vram_sizes[i]) {
1581 unsigned long size;
1582 unsigned long paddr;
1583
1584 size = opd->mem_desc.region[i].size;
1585 paddr = opd->mem_desc.region[i].paddr;
1586
1587 vram_sizes[i] = size;
1588 vram_paddrs[i] = paddr;
1589 }
1590 }
1591 }
1592
1593 for (i = 0; i < fbdev->num_fbs; i++) {
1594 /* allocate memory automatically only for fb0, or if
1595 * excplicitly defined with vram or plat data option */
1596 if (i == 0 || vram_sizes[i] != 0) {
1597 r = omapfb_alloc_fbmem_display(fbdev->fbs[i],
1598 vram_sizes[i], vram_paddrs[i]);
1599
1600 if (r)
1601 return r;
1602 }
1603 }
1604
1605 for (i = 0; i < fbdev->num_fbs; i++) {
1606 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1607 struct omapfb2_mem_region *rg;
1608 rg = &ofbi->region;
1609
1610 DBG("region%d phys %08x virt %p size=%lu\n",
1611 i,
1612 rg->paddr,
1613 rg->vaddr,
1614 rg->size);
1615 }
1616
1617 return 0;
1618}
1619
1620int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
1621{
1622 struct omapfb_info *ofbi = FB2OFB(fbi);
1623 struct omapfb2_device *fbdev = ofbi->fbdev;
1624 struct omap_dss_device *display = fb2display(fbi);
1625 struct omapfb2_mem_region *rg = &ofbi->region;
1626 unsigned long old_size = rg->size;
1627 unsigned long old_paddr = rg->paddr;
1628 int old_type = rg->type;
1629 int r;
1630
1631 if (type > OMAPFB_MEMTYPE_MAX)
1632 return -EINVAL;
1633
1634 size = PAGE_ALIGN(size);
1635
1636 if (old_size == size && old_type == type)
1637 return 0;
1638
1639 if (display && display->sync)
1640 display->sync(display);
1641
1642 omapfb_free_fbmem(fbi);
1643
1644 if (size == 0) {
1645 clear_fb_info(fbi);
1646 return 0;
1647 }
1648
1649 r = omapfb_alloc_fbmem(fbi, size, 0);
1650
1651 if (r) {
1652 if (old_size)
1653 omapfb_alloc_fbmem(fbi, old_size, old_paddr);
1654
1655 if (rg->size == 0)
1656 clear_fb_info(fbi);
1657
1658 return r;
1659 }
1660
1661 if (old_size == size)
1662 return 0;
1663
1664 if (old_size == 0) {
1665 DBG("initializing fb %d\n", ofbi->id);
1666 r = omapfb_fb_init(fbdev, fbi);
1667 if (r) {
1668 DBG("omapfb_fb_init failed\n");
1669 goto err;
1670 }
1671 r = omapfb_apply_changes(fbi, 1);
1672 if (r) {
1673 DBG("omapfb_apply_changes failed\n");
1674 goto err;
1675 }
1676 } else {
1677 struct fb_var_screeninfo new_var;
1678 memcpy(&new_var, &fbi->var, sizeof(new_var));
1679 r = check_fb_var(fbi, &new_var);
1680 if (r)
1681 goto err;
1682 memcpy(&fbi->var, &new_var, sizeof(fbi->var));
1683 set_fb_fix(fbi);
1684 r = setup_vrfb_rotation(fbi);
1685 if (r)
1686 goto err;
1687 }
1688
1689 return 0;
1690err:
1691 omapfb_free_fbmem(fbi);
1692 clear_fb_info(fbi);
1693 return r;
1694}
1695
1696/* initialize fb_info, var, fix to something sane based on the display */
1697static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
1698{
1699 struct fb_var_screeninfo *var = &fbi->var;
1700 struct omap_dss_device *display = fb2display(fbi);
1701 struct omapfb_info *ofbi = FB2OFB(fbi);
1702 int r = 0;
1703
1704 fbi->fbops = &omapfb_ops;
1705 fbi->flags = FBINFO_FLAG_DEFAULT;
1706 fbi->pseudo_palette = fbdev->pseudo_palette;
1707
1708 if (ofbi->region.size == 0) {
1709 clear_fb_info(fbi);
1710 return 0;
1711 }
1712
1713 var->nonstd = 0;
1714 var->bits_per_pixel = 0;
1715
1716 var->rotate = def_rotate;
1717
1718 /*
1719 * Check if there is a default color format set in the board file,
1720 * and use this format instead the default deducted from the
1721 * display bpp.
1722 */
1723 if (fbdev->dev->platform_data) {
1724 struct omapfb_platform_data *opd;
1725 int id = ofbi->id;
1726
1727 opd = fbdev->dev->platform_data;
1728 if (opd->mem_desc.region[id].format_used) {
1729 enum omap_color_mode mode;
1730 enum omapfb_color_format format;
1731
1732 format = opd->mem_desc.region[id].format;
1733 mode = fb_format_to_dss_mode(format);
1734 if (mode < 0) {
1735 r = mode;
1736 goto err;
1737 }
1738 r = dss_mode_to_fb_mode(mode, var);
1739 if (r < 0)
1740 goto err;
1741 }
1742 }
1743
1744 if (display) {
1745 u16 w, h;
1746 int rotation = (var->rotate + ofbi->rotation[0]) % 4;
1747
1748 display->get_resolution(display, &w, &h);
1749
1750 if (rotation == FB_ROTATE_CW ||
1751 rotation == FB_ROTATE_CCW) {
1752 var->xres = h;
1753 var->yres = w;
1754 } else {
1755 var->xres = w;
1756 var->yres = h;
1757 }
1758
1759 var->xres_virtual = var->xres;
1760 var->yres_virtual = var->yres;
1761
1762 if (!var->bits_per_pixel) {
1763 switch (display->get_recommended_bpp(display)) {
1764 case 16:
1765 var->bits_per_pixel = 16;
1766 break;
1767 case 24:
1768 var->bits_per_pixel = 32;
1769 break;
1770 default:
1771 dev_err(fbdev->dev, "illegal display "
1772 "bpp\n");
1773 return -EINVAL;
1774 }
1775 }
1776 } else {
1777 /* if there's no display, let's just guess some basic values */
1778 var->xres = 320;
1779 var->yres = 240;
1780 var->xres_virtual = var->xres;
1781 var->yres_virtual = var->yres;
1782 if (!var->bits_per_pixel)
1783 var->bits_per_pixel = 16;
1784 }
1785
1786 r = check_fb_var(fbi, var);
1787 if (r)
1788 goto err;
1789
1790 set_fb_fix(fbi);
1791 r = setup_vrfb_rotation(fbi);
1792 if (r)
1793 goto err;
1794
1795 r = fb_alloc_cmap(&fbi->cmap, 256, 0);
1796 if (r)
1797 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1798
1799err:
1800 return r;
1801}
1802
1803static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
1804{
1805 fb_dealloc_cmap(&fbi->cmap);
1806}
1807
1808
1809static void omapfb_free_resources(struct omapfb2_device *fbdev)
1810{
1811 int i;
1812
1813 DBG("free_resources\n");
1814
1815 if (fbdev == NULL)
1816 return;
1817
1818 for (i = 0; i < fbdev->num_fbs; i++)
1819 unregister_framebuffer(fbdev->fbs[i]);
1820
1821 /* free the reserved fbmem */
1822 omapfb_free_all_fbmem(fbdev);
1823
1824 for (i = 0; i < fbdev->num_fbs; i++) {
1825 fbinfo_cleanup(fbdev, fbdev->fbs[i]);
1826 framebuffer_release(fbdev->fbs[i]);
1827 }
1828
1829 for (i = 0; i < fbdev->num_displays; i++) {
1830 if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED)
1831 fbdev->displays[i]->disable(fbdev->displays[i]);
1832
1833 omap_dss_put_device(fbdev->displays[i]);
1834 }
1835
1836 dev_set_drvdata(fbdev->dev, NULL);
1837 kfree(fbdev);
1838}
1839
1840static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
1841{
1842 int r, i;
1843
1844 fbdev->num_fbs = 0;
1845
1846 DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS);
1847
1848 /* allocate fb_infos */
1849 for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) {
1850 struct fb_info *fbi;
1851 struct omapfb_info *ofbi;
1852
1853 fbi = framebuffer_alloc(sizeof(struct omapfb_info),
1854 fbdev->dev);
1855
1856 if (fbi == NULL) {
1857 dev_err(fbdev->dev,
1858 "unable to allocate memory for plane info\n");
1859 return -ENOMEM;
1860 }
1861
1862 clear_fb_info(fbi);
1863
1864 fbdev->fbs[i] = fbi;
1865
1866 ofbi = FB2OFB(fbi);
1867 ofbi->fbdev = fbdev;
1868 ofbi->id = i;
1869
1870 /* assign these early, so that fb alloc can use them */
1871 ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
1872 OMAP_DSS_ROT_DMA;
1873 ofbi->mirror = def_mirror;
1874
1875 fbdev->num_fbs++;
1876 }
1877
1878 DBG("fb_infos allocated\n");
1879
1880 /* assign overlays for the fbs */
1881 for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) {
1882 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1883
1884 ofbi->overlays[0] = fbdev->overlays[i];
1885 ofbi->num_overlays = 1;
1886 }
1887
1888 /* allocate fb memories */
1889 r = omapfb_allocate_all_fbs(fbdev);
1890 if (r) {
1891 dev_err(fbdev->dev, "failed to allocate fbmem\n");
1892 return r;
1893 }
1894
1895 DBG("fbmems allocated\n");
1896
1897 /* setup fb_infos */
1898 for (i = 0; i < fbdev->num_fbs; i++) {
1899 r = omapfb_fb_init(fbdev, fbdev->fbs[i]);
1900 if (r) {
1901 dev_err(fbdev->dev, "failed to setup fb_info\n");
1902 return r;
1903 }
1904 }
1905
1906 DBG("fb_infos initialized\n");
1907
1908 for (i = 0; i < fbdev->num_fbs; i++) {
1909 r = register_framebuffer(fbdev->fbs[i]);
1910 if (r != 0) {
1911 dev_err(fbdev->dev,
1912 "registering framebuffer %d failed\n", i);
1913 return r;
1914 }
1915 }
1916
1917 DBG("framebuffers registered\n");
1918
1919 for (i = 0; i < fbdev->num_fbs; i++) {
1920 r = omapfb_apply_changes(fbdev->fbs[i], 1);
1921 if (r) {
1922 dev_err(fbdev->dev, "failed to change mode\n");
1923 return r;
1924 }
1925 }
1926
1927 DBG("create sysfs for fbs\n");
1928 r = omapfb_create_sysfs(fbdev);
1929 if (r) {
1930 dev_err(fbdev->dev, "failed to create sysfs entries\n");
1931 return r;
1932 }
1933
1934 /* Enable fb0 */
1935 if (fbdev->num_fbs > 0) {
1936 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]);
1937
1938 if (ofbi->num_overlays > 0) {
1939 struct omap_overlay *ovl = ofbi->overlays[0];
1940
1941 r = omapfb_overlay_enable(ovl, 1);
1942
1943 if (r) {
1944 dev_err(fbdev->dev,
1945 "failed to enable overlay\n");
1946 return r;
1947 }
1948 }
1949 }
1950
1951 DBG("create_framebuffers done\n");
1952
1953 return 0;
1954}
1955
1956static int omapfb_mode_to_timings(const char *mode_str,
1957 struct omap_video_timings *timings, u8 *bpp)
1958{
1959 struct fb_info fbi;
1960 struct fb_var_screeninfo var;
1961 struct fb_ops fbops;
1962 int r;
1963
1964#ifdef CONFIG_OMAP2_DSS_VENC
1965 if (strcmp(mode_str, "pal") == 0) {
1966 *timings = omap_dss_pal_timings;
1967 *bpp = 0;
1968 return 0;
1969 } else if (strcmp(mode_str, "ntsc") == 0) {
1970 *timings = omap_dss_ntsc_timings;
1971 *bpp = 0;
1972 return 0;
1973 }
1974#endif
1975
1976 /* this is quite a hack, but I wanted to use the modedb and for
1977 * that we need fb_info and var, so we create dummy ones */
1978
1979 memset(&fbi, 0, sizeof(fbi));
1980 memset(&var, 0, sizeof(var));
1981 memset(&fbops, 0, sizeof(fbops));
1982 fbi.fbops = &fbops;
1983
1984 r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24);
1985
1986 if (r != 0) {
1987 timings->pixel_clock = PICOS2KHZ(var.pixclock);
1988 timings->hfp = var.left_margin;
1989 timings->hbp = var.right_margin;
1990 timings->vfp = var.upper_margin;
1991 timings->vbp = var.lower_margin;
1992 timings->hsw = var.hsync_len;
1993 timings->vsw = var.vsync_len;
1994 timings->x_res = var.xres;
1995 timings->y_res = var.yres;
1996
1997 switch (var.bits_per_pixel) {
1998 case 16:
1999 *bpp = 16;
2000 break;
2001 case 24:
2002 case 32:
2003 default:
2004 *bpp = 24;
2005 break;
2006 }
2007
2008 return 0;
2009 } else {
2010 return -EINVAL;
2011 }
2012}
2013
2014static int omapfb_set_def_mode(struct omap_dss_device *display, char *mode_str)
2015{
2016 int r;
2017 u8 bpp;
2018 struct omap_video_timings timings;
2019
2020 r = omapfb_mode_to_timings(mode_str, &timings, &bpp);
2021 if (r)
2022 return r;
2023
2024 display->panel.recommended_bpp = bpp;
2025
2026 if (!display->check_timings || !display->set_timings)
2027 return -EINVAL;
2028
2029 r = display->check_timings(display, &timings);
2030 if (r)
2031 return r;
2032
2033 display->set_timings(display, &timings);
2034
2035 return 0;
2036}
2037
2038static int omapfb_parse_def_modes(struct omapfb2_device *fbdev)
2039{
2040 char *str, *options, *this_opt;
2041 int r = 0;
2042
2043 str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL);
2044 strcpy(str, def_mode);
2045 options = str;
2046
2047 while (!r && (this_opt = strsep(&options, ",")) != NULL) {
2048 char *p, *display_str, *mode_str;
2049 struct omap_dss_device *display;
2050 int i;
2051
2052 p = strchr(this_opt, ':');
2053 if (!p) {
2054 r = -EINVAL;
2055 break;
2056 }
2057
2058 *p = 0;
2059 display_str = this_opt;
2060 mode_str = p + 1;
2061
2062 display = NULL;
2063 for (i = 0; i < fbdev->num_displays; ++i) {
2064 if (strcmp(fbdev->displays[i]->name,
2065 display_str) == 0) {
2066 display = fbdev->displays[i];
2067 break;
2068 }
2069 }
2070
2071 if (!display) {
2072 r = -EINVAL;
2073 break;
2074 }
2075
2076 r = omapfb_set_def_mode(display, mode_str);
2077 if (r)
2078 break;
2079 }
2080
2081 kfree(str);
2082
2083 return r;
2084}
2085
2086static int omapfb_probe(struct platform_device *pdev)
2087{
2088 struct omapfb2_device *fbdev = NULL;
2089 int r = 0;
2090 int i;
2091 struct omap_overlay *ovl;
2092 struct omap_dss_device *def_display;
2093 struct omap_dss_device *dssdev;
2094
2095 DBG("omapfb_probe\n");
2096
2097 if (pdev->num_resources != 0) {
2098 dev_err(&pdev->dev, "probed for an unknown device\n");
2099 r = -ENODEV;
2100 goto err0;
2101 }
2102
2103 fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL);
2104 if (fbdev == NULL) {
2105 r = -ENOMEM;
2106 goto err0;
2107 }
2108
2109 mutex_init(&fbdev->mtx);
2110
2111 fbdev->dev = &pdev->dev;
2112 platform_set_drvdata(pdev, fbdev);
2113
b3f91eb8 2114 r = 0;
b39a982d
TV		 2115 fbdev->num_displays = 0;
2116 dssdev = NULL;
2117 for_each_dss_dev(dssdev) {
2118 omap_dss_get_device(dssdev);
b3f91eb8 2119
807a7515
TV		 2120 if (!dssdev->driver) {
2121 dev_err(&pdev->dev, "no driver for display\n");
b3f91eb8 2122 r = -ENODEV;
807a7515 2123 }
b3f91eb8 2124
b39a982d
TV		 2125 fbdev->displays[fbdev->num_displays++] = dssdev;
2126 }
2127
b3f91eb8
TV		 2128 if (r)
2129 goto cleanup;
2130
b39a982d
TV		 2131 if (fbdev->num_displays == 0) {
2132 dev_err(&pdev->dev, "no displays\n");
2133 r = -EINVAL;
2134 goto cleanup;
2135 }
2136
2137 fbdev->num_overlays = omap_dss_get_num_overlays();
2138 for (i = 0; i < fbdev->num_overlays; i++)
2139 fbdev->overlays[i] = omap_dss_get_overlay(i);
2140
2141 fbdev->num_managers = omap_dss_get_num_overlay_managers();
2142 for (i = 0; i < fbdev->num_managers; i++)
2143 fbdev->managers[i] = omap_dss_get_overlay_manager(i);
2144
2145 if (def_mode && strlen(def_mode) > 0) {
2146 if (omapfb_parse_def_modes(fbdev))
2147 dev_warn(&pdev->dev, "cannot parse default modes\n");
2148 }
2149
2150 r = omapfb_create_framebuffers(fbdev);
2151 if (r)
2152 goto cleanup;
2153
2154 for (i = 0; i < fbdev->num_managers; i++) {
2155 struct omap_overlay_manager *mgr;
2156 mgr = fbdev->managers[i];
2157 r = mgr->apply(mgr);
2158 if (r)
2159 dev_warn(fbdev->dev, "failed to apply dispc config\n");
2160 }
2161
2162 DBG("mgr->apply'ed\n");
2163
2164 /* gfx overlay should be the default one. find a display
2165 * connected to that, and use it as default display */
2166 ovl = omap_dss_get_overlay(0);
2167 if (ovl->manager && ovl->manager->device) {
2168 def_display = ovl->manager->device;
2169 } else {
2170 dev_warn(&pdev->dev, "cannot find default display\n");
2171 def_display = NULL;
2172 }
2173
2174 if (def_display) {
2175#ifndef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
2176 u16 w, h;
2177#endif
2178 r = def_display->enable(def_display);
6d2e0bd6 2179 if (r) {
b39a982d
TV		 2180 dev_warn(fbdev->dev, "Failed to enable display '%s'\n",
2181 def_display->name);
6d2e0bd6
TV		 2182 goto cleanup;
2183 }
b39a982d
TV		 2184
2185 /* set the update mode */
2186 if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
2187#ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
2188 if (def_display->enable_te)
2189 def_display->enable_te(def_display, 1);
2190 if (def_display->set_update_mode)
2191 def_display->set_update_mode(def_display,
2192 OMAP_DSS_UPDATE_AUTO);
2193#else /* MANUAL_UPDATE */
2194 if (def_display->enable_te)
2195 def_display->enable_te(def_display, 0);
2196 if (def_display->set_update_mode)
2197 def_display->set_update_mode(def_display,
2198 OMAP_DSS_UPDATE_MANUAL);
2199
2200 def_display->get_resolution(def_display, &w, &h);
2201 def_display->update(def_display, 0, 0, w, h);
2202#endif
2203 } else {
2204 if (def_display->set_update_mode)
2205 def_display->set_update_mode(def_display,
2206 OMAP_DSS_UPDATE_AUTO);
2207 }
2208 }
2209
2210 return 0;
2211
2212cleanup:
2213 omapfb_free_resources(fbdev);
2214err0:
2215 dev_err(&pdev->dev, "failed to setup omapfb\n");
2216 return r;
2217}
2218
2219static int omapfb_remove(struct platform_device *pdev)
2220{
2221 struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
2222
2223 /* FIXME: wait till completion of pending events */
2224
2225 omapfb_remove_sysfs(fbdev);
2226
2227 omapfb_free_resources(fbdev);
2228
2229 return 0;
2230}
2231
2232static struct platform_driver omapfb_driver = {
2233 .probe = omapfb_probe,
2234 .remove = omapfb_remove,
2235 .driver = {
2236 .name = "omapfb",
2237 .owner = THIS_MODULE,
2238 },
2239};
2240
2241static int __init omapfb_init(void)
2242{
2243 DBG("omapfb_init\n");
2244
2245 if (platform_driver_register(&omapfb_driver)) {
2246 printk(KERN_ERR "failed to register omapfb driver\n");
2247 return -ENODEV;
2248 }
2249
2250 return 0;
2251}
2252
2253static void __exit omapfb_exit(void)
2254{
2255 DBG("omapfb_exit\n");
2256 platform_driver_unregister(&omapfb_driver);
2257}
2258
2259module_param_named(mode, def_mode, charp, 0);
2260module_param_named(vram, def_vram, charp, 0);
2261module_param_named(rotate, def_rotate, int, 0);
2262module_param_named(vrfb, def_vrfb, bool, 0);
2263module_param_named(mirror, def_mirror, bool, 0);
2264
2265/* late_initcall to let panel/ctrl drivers loaded first.
2266 * I guess better option would be a more dynamic approach,
2267 * so that omapfb reacts to new panels when they are loaded */
2268late_initcall(omapfb_init);
2269/*module_init(omapfb_init);*/
2270module_exit(omapfb_exit);
2271
2272MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
2273MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
2274MODULE_LICENSE("GPL v2");
Linux 6.x block layer and io_uring tree(s)