aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/video/omap2/omapfb
diff options
context:
space:
mode:
authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-02-13 08:31:38 -0500
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-04-17 01:10:19 -0400
commitf7018c21350204c4cf628462f229d44d03545254 (patch)
tree408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/omap2/omapfb
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/omap2/omapfb')
-rw-r--r--drivers/video/omap2/omapfb/Kconfig27
-rw-r--r--drivers/video/omap2/omapfb/Makefile2
-rw-r--r--drivers/video/omap2/omapfb/omapfb-ioctl.c922
-rw-r--r--drivers/video/omap2/omapfb/omapfb-main.c2656
-rw-r--r--drivers/video/omap2/omapfb/omapfb-sysfs.c605
-rw-r--r--drivers/video/omap2/omapfb/omapfb.h208
6 files changed, 0 insertions, 4420 deletions
diff --git a/drivers/video/omap2/omapfb/Kconfig b/drivers/video/omap2/omapfb/Kconfig
deleted file mode 100644
index 4cb12ce68855..000000000000
--- a/drivers/video/omap2/omapfb/Kconfig
+++ /dev/null
@@ -1,27 +0,0 @@
1menuconfig FB_OMAP2
2 tristate "OMAP2+ frame buffer support"
3 depends on FB && OMAP2_DSS && !DRM_OMAP
4
5 select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3
6 select FB_CFB_FILLRECT
7 select FB_CFB_COPYAREA
8 select FB_CFB_IMAGEBLIT
9 help
10 Frame buffer driver for OMAP2+ based boards.
11
12config FB_OMAP2_DEBUG_SUPPORT
13 bool "Debug support for OMAP2+ FB"
14 default y
15 depends on FB_OMAP2
16 help
17 Support for debug output. You have to enable the actual printing
18 with 'debug' module parameter.
19
20config FB_OMAP2_NUM_FBS
21 int "Number of framebuffers"
22 range 1 10
23 default 3
24 depends on FB_OMAP2
25 help
26 Select the number of framebuffers created. OMAP2/3 has 3 overlays
27 so normally this would be 3.
diff --git a/drivers/video/omap2/omapfb/Makefile b/drivers/video/omap2/omapfb/Makefile
deleted file mode 100644
index 51c2e00d9bf8..000000000000
--- a/drivers/video/omap2/omapfb/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
1obj-$(CONFIG_FB_OMAP2) += omapfb.o
2omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
deleted file mode 100644
index 146b6f5428db..000000000000
--- a/drivers/video/omap2/omapfb/omapfb-ioctl.c
+++ /dev/null
@@ -1,922 +0,0 @@
1/*
2 * linux/drivers/video/omap2/omapfb-ioctl.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/fb.h>
24#include <linux/device.h>
25#include <linux/uaccess.h>
26#include <linux/platform_device.h>
27#include <linux/mm.h>
28#include <linux/omapfb.h>
29#include <linux/vmalloc.h>
30#include <linux/export.h>
31#include <linux/sizes.h>
32
33#include <video/omapdss.h>
34#include <video/omapvrfb.h>
35
36#include "omapfb.h"
37
38static u8 get_mem_idx(struct omapfb_info *ofbi)
39{
40 if (ofbi->id == ofbi->region->id)
41 return 0;
42
43 return OMAPFB_MEM_IDX_ENABLED | ofbi->region->id;
44}
45
46static struct omapfb2_mem_region *get_mem_region(struct omapfb_info *ofbi,
47 u8 mem_idx)
48{
49 struct omapfb2_device *fbdev = ofbi->fbdev;
50
51 if (mem_idx & OMAPFB_MEM_IDX_ENABLED)
52 mem_idx &= OMAPFB_MEM_IDX_MASK;
53 else
54 mem_idx = ofbi->id;
55
56 if (mem_idx >= fbdev->num_fbs)
57 return NULL;
58
59 return &fbdev->regions[mem_idx];
60}
61
62static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
63{
64 struct omapfb_info *ofbi = FB2OFB(fbi);
65 struct omapfb2_device *fbdev = ofbi->fbdev;
66 struct omap_overlay *ovl;
67 struct omap_overlay_info old_info;
68 struct omapfb2_mem_region *old_rg, *new_rg;
69 int r = 0;
70
71 DBG("omapfb_setup_plane\n");
72
73 if (ofbi->num_overlays == 0) {
74 r = -EINVAL;
75 goto out;
76 }
77
78 /* XXX uses only the first overlay */
79 ovl = ofbi->overlays[0];
80
81 old_rg = ofbi->region;
82 new_rg = get_mem_region(ofbi, pi->mem_idx);
83 if (!new_rg) {
84 r = -EINVAL;
85 goto out;
86 }
87
88 /* Take the locks in a specific order to keep lockdep happy */
89 if (old_rg->id < new_rg->id) {
90 omapfb_get_mem_region(old_rg);
91 omapfb_get_mem_region(new_rg);
92 } else if (new_rg->id < old_rg->id) {
93 omapfb_get_mem_region(new_rg);
94 omapfb_get_mem_region(old_rg);
95 } else
96 omapfb_get_mem_region(old_rg);
97
98 if (pi->enabled && !new_rg->size) {
99 /*
100 * This plane's memory was freed, can't enable it
101 * until it's reallocated.
102 */
103 r = -EINVAL;
104 goto put_mem;
105 }
106
107 ovl->get_overlay_info(ovl, &old_info);
108
109 if (old_rg != new_rg) {
110 ofbi->region = new_rg;
111 set_fb_fix(fbi);
112 }
113
114 if (!pi->enabled) {
115 r = ovl->disable(ovl);
116 if (r)
117 goto undo;
118 }
119
120 if (pi->enabled) {
121 r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
122 pi->out_width, pi->out_height);
123 if (r)
124 goto undo;
125 } else {
126 struct omap_overlay_info info;
127
128 ovl->get_overlay_info(ovl, &info);
129
130 info.pos_x = pi->pos_x;
131 info.pos_y = pi->pos_y;
132 info.out_width = pi->out_width;
133 info.out_height = pi->out_height;
134
135 r = ovl->set_overlay_info(ovl, &info);
136 if (r)
137 goto undo;
138 }
139
140 if (ovl->manager)
141 ovl->manager->apply(ovl->manager);
142
143 if (pi->enabled) {
144 r = ovl->enable(ovl);
145 if (r)
146 goto undo;
147 }
148
149 /* Release the locks in a specific order to keep lockdep happy */
150 if (old_rg->id > new_rg->id) {
151 omapfb_put_mem_region(old_rg);
152 omapfb_put_mem_region(new_rg);
153 } else if (new_rg->id > old_rg->id) {
154 omapfb_put_mem_region(new_rg);
155 omapfb_put_mem_region(old_rg);
156 } else
157 omapfb_put_mem_region(old_rg);
158
159 return 0;
160
161 undo:
162 if (old_rg != new_rg) {
163 ofbi->region = old_rg;
164 set_fb_fix(fbi);
165 }
166
167 ovl->set_overlay_info(ovl, &old_info);
168 put_mem:
169 /* Release the locks in a specific order to keep lockdep happy */
170 if (old_rg->id > new_rg->id) {
171 omapfb_put_mem_region(old_rg);
172 omapfb_put_mem_region(new_rg);
173 } else if (new_rg->id > old_rg->id) {
174 omapfb_put_mem_region(new_rg);
175 omapfb_put_mem_region(old_rg);
176 } else
177 omapfb_put_mem_region(old_rg);
178 out:
179 dev_err(fbdev->dev, "setup_plane failed\n");
180
181 return r;
182}
183
184static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
185{
186 struct omapfb_info *ofbi = FB2OFB(fbi);
187
188 if (ofbi->num_overlays == 0) {
189 memset(pi, 0, sizeof(*pi));
190 } else {
191 struct omap_overlay *ovl;
192 struct omap_overlay_info ovli;
193
194 ovl = ofbi->overlays[0];
195 ovl->get_overlay_info(ovl, &ovli);
196
197 pi->pos_x = ovli.pos_x;
198 pi->pos_y = ovli.pos_y;
199 pi->enabled = ovl->is_enabled(ovl);
200 pi->channel_out = 0; /* xxx */
201 pi->mirror = 0;
202 pi->mem_idx = get_mem_idx(ofbi);
203 pi->out_width = ovli.out_width;
204 pi->out_height = ovli.out_height;
205 }
206
207 return 0;
208}
209
210static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
211{
212 struct omapfb_info *ofbi = FB2OFB(fbi);
213 struct omapfb2_device *fbdev = ofbi->fbdev;
214 struct omap_dss_device *display = fb2display(fbi);
215 struct omapfb2_mem_region *rg;
216 int r = 0, i;
217 size_t size;
218
219 if (mi->type != OMAPFB_MEMTYPE_SDRAM)
220 return -EINVAL;
221
222 size = PAGE_ALIGN(mi->size);
223
224 if (display && display->driver->sync)
225 display->driver->sync(display);
226
227 rg = ofbi->region;
228
229 down_write_nested(&rg->lock, rg->id);
230 atomic_inc(&rg->lock_count);
231
232 if (rg->size == size && rg->type == mi->type)
233 goto out;
234
235 if (atomic_read(&rg->map_count)) {
236 r = -EBUSY;
237 goto out;
238 }
239
240 for (i = 0; i < fbdev->num_fbs; i++) {
241 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
242 int j;
243
244 if (ofbi2->region != rg)
245 continue;
246
247 for (j = 0; j < ofbi2->num_overlays; j++) {
248 struct omap_overlay *ovl;
249 ovl = ofbi2->overlays[j];
250 if (ovl->is_enabled(ovl)) {
251 r = -EBUSY;
252 goto out;
253 }
254 }
255 }
256
257 r = omapfb_realloc_fbmem(fbi, size, mi->type);
258 if (r) {
259 dev_err(fbdev->dev, "realloc fbmem failed\n");
260 goto out;
261 }
262
263 out:
264 atomic_dec(&rg->lock_count);
265 up_write(&rg->lock);
266
267 return r;
268}
269
270static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
271{
272 struct omapfb_info *ofbi = FB2OFB(fbi);
273 struct omapfb2_mem_region *rg;
274
275 rg = omapfb_get_mem_region(ofbi->region);
276 memset(mi, 0, sizeof(*mi));
277
278 mi->size = rg->size;
279 mi->type = rg->type;
280
281 omapfb_put_mem_region(rg);
282
283 return 0;
284}
285
286static int omapfb_update_window(struct fb_info *fbi,
287 u32 x, u32 y, u32 w, u32 h)
288{
289 struct omap_dss_device *display = fb2display(fbi);
290 u16 dw, dh;
291
292 if (!display)
293 return 0;
294
295 if (w == 0 || h == 0)
296 return 0;
297
298 display->driver->get_resolution(display, &dw, &dh);
299
300 if (x + w > dw || y + h > dh)
301 return -EINVAL;
302
303 return display->driver->update(display, x, y, w, h);
304}
305
306int omapfb_set_update_mode(struct fb_info *fbi,
307 enum omapfb_update_mode mode)
308{
309 struct omap_dss_device *display = fb2display(fbi);
310 struct omapfb_info *ofbi = FB2OFB(fbi);
311 struct omapfb2_device *fbdev = ofbi->fbdev;
312 struct omapfb_display_data *d;
313 int r;
314
315 if (!display)
316 return -EINVAL;
317
318 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
319 return -EINVAL;
320
321 omapfb_lock(fbdev);
322
323 d = get_display_data(fbdev, display);
324
325 if (d->update_mode == mode) {
326 omapfb_unlock(fbdev);
327 return 0;
328 }
329
330 r = 0;
331
332 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
333 if (mode == OMAPFB_AUTO_UPDATE)
334 omapfb_start_auto_update(fbdev, display);
335 else /* MANUAL_UPDATE */
336 omapfb_stop_auto_update(fbdev, display);
337
338 d->update_mode = mode;
339 } else { /* AUTO_UPDATE */
340 if (mode == OMAPFB_MANUAL_UPDATE)
341 r = -EINVAL;
342 }
343
344 omapfb_unlock(fbdev);
345
346 return r;
347}
348
349int omapfb_get_update_mode(struct fb_info *fbi,
350 enum omapfb_update_mode *mode)
351{
352 struct omap_dss_device *display = fb2display(fbi);
353 struct omapfb_info *ofbi = FB2OFB(fbi);
354 struct omapfb2_device *fbdev = ofbi->fbdev;
355 struct omapfb_display_data *d;
356
357 if (!display)
358 return -EINVAL;
359
360 omapfb_lock(fbdev);
361
362 d = get_display_data(fbdev, display);
363
364 *mode = d->update_mode;
365
366 omapfb_unlock(fbdev);
367
368 return 0;
369}
370
371/* XXX this color key handling is a hack... */
372static struct omapfb_color_key omapfb_color_keys[2];
373
374static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
375 struct omapfb_color_key *ck)
376{
377 struct omap_overlay_manager_info info;
378 enum omap_dss_trans_key_type kt;
379 int r;
380
381 mgr->get_manager_info(mgr, &info);
382
383 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
384 info.trans_enabled = false;
385 omapfb_color_keys[mgr->id] = *ck;
386
387 r = mgr->set_manager_info(mgr, &info);
388 if (r)
389 return r;
390
391 r = mgr->apply(mgr);
392
393 return r;
394 }
395
396 switch (ck->key_type) {
397 case OMAPFB_COLOR_KEY_GFX_DST:
398 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
399 break;
400 case OMAPFB_COLOR_KEY_VID_SRC:
401 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
402 break;
403 default:
404 return -EINVAL;
405 }
406
407 info.default_color = ck->background;
408 info.trans_key = ck->trans_key;
409 info.trans_key_type = kt;
410 info.trans_enabled = true;
411
412 omapfb_color_keys[mgr->id] = *ck;
413
414 r = mgr->set_manager_info(mgr, &info);
415 if (r)
416 return r;
417
418 r = mgr->apply(mgr);
419
420 return r;
421}
422
423static int omapfb_set_color_key(struct fb_info *fbi,
424 struct omapfb_color_key *ck)
425{
426 struct omapfb_info *ofbi = FB2OFB(fbi);
427 struct omapfb2_device *fbdev = ofbi->fbdev;
428 int r;
429 int i;
430 struct omap_overlay_manager *mgr = NULL;
431
432 omapfb_lock(fbdev);
433
434 for (i = 0; i < ofbi->num_overlays; i++) {
435 if (ofbi->overlays[i]->manager) {
436 mgr = ofbi->overlays[i]->manager;
437 break;
438 }
439 }
440
441 if (!mgr) {
442 r = -EINVAL;
443 goto err;
444 }
445
446 r = _omapfb_set_color_key(mgr, ck);
447err:
448 omapfb_unlock(fbdev);
449
450 return r;
451}
452
453static int omapfb_get_color_key(struct fb_info *fbi,
454 struct omapfb_color_key *ck)
455{
456 struct omapfb_info *ofbi = FB2OFB(fbi);
457 struct omapfb2_device *fbdev = ofbi->fbdev;
458 struct omap_overlay_manager *mgr = NULL;
459 int r = 0;
460 int i;
461
462 omapfb_lock(fbdev);
463
464 for (i = 0; i < ofbi->num_overlays; i++) {
465 if (ofbi->overlays[i]->manager) {
466 mgr = ofbi->overlays[i]->manager;
467 break;
468 }
469 }
470
471 if (!mgr) {
472 r = -EINVAL;
473 goto err;
474 }
475
476 *ck = omapfb_color_keys[mgr->id];
477err:
478 omapfb_unlock(fbdev);
479
480 return r;
481}
482
483static int omapfb_memory_read(struct fb_info *fbi,
484 struct omapfb_memory_read *mr)
485{
486 struct omap_dss_device *display = fb2display(fbi);
487 void *buf;
488 int r;
489
490 if (!display || !display->driver->memory_read)
491 return -ENOENT;
492
493 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
494 return -EFAULT;
495
496 if (mr->w * mr->h * 3 > mr->buffer_size)
497 return -EINVAL;
498
499 buf = vmalloc(mr->buffer_size);
500 if (!buf) {
501 DBG("vmalloc failed\n");
502 return -ENOMEM;
503 }
504
505 r = display->driver->memory_read(display, buf, mr->buffer_size,
506 mr->x, mr->y, mr->w, mr->h);
507
508 if (r > 0) {
509 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
510 r = -EFAULT;
511 }
512
513 vfree(buf);
514
515 return r;
516}
517
518static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
519 struct omapfb_ovl_colormode *mode)
520{
521 int ovl_idx = mode->overlay_idx;
522 int mode_idx = mode->mode_idx;
523 struct omap_overlay *ovl;
524 enum omap_color_mode supported_modes;
525 struct fb_var_screeninfo var;
526 int i;
527
528 if (ovl_idx >= fbdev->num_overlays)
529 return -ENODEV;
530 ovl = fbdev->overlays[ovl_idx];
531 supported_modes = ovl->supported_modes;
532
533 mode_idx = mode->mode_idx;
534
535 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
536 if (!(supported_modes & (1 << i)))
537 continue;
538 /*
539 * It's possible that the FB doesn't support a mode
540 * that is supported by the overlay, so call the
541 * following here.
542 */
543 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
544 continue;
545
546 mode_idx--;
547 if (mode_idx < 0)
548 break;
549 }
550
551 if (i == sizeof(supported_modes) * 8)
552 return -ENOENT;
553
554 mode->bits_per_pixel = var.bits_per_pixel;
555 mode->nonstd = var.nonstd;
556 mode->red = var.red;
557 mode->green = var.green;
558 mode->blue = var.blue;
559 mode->transp = var.transp;
560
561 return 0;
562}
563
564static int omapfb_wait_for_go(struct fb_info *fbi)
565{
566 struct omapfb_info *ofbi = FB2OFB(fbi);
567 int r = 0;
568 int i;
569
570 for (i = 0; i < ofbi->num_overlays; ++i) {
571 struct omap_overlay *ovl = ofbi->overlays[i];
572 r = ovl->wait_for_go(ovl);
573 if (r)
574 break;
575 }
576
577 return r;
578}
579
580int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
581{
582 struct omapfb_info *ofbi = FB2OFB(fbi);
583 struct omapfb2_device *fbdev = ofbi->fbdev;
584 struct omap_dss_device *display = fb2display(fbi);
585 struct omap_overlay_manager *mgr;
586
587 union {
588 struct omapfb_update_window_old uwnd_o;
589 struct omapfb_update_window uwnd;
590 struct omapfb_plane_info plane_info;
591 struct omapfb_caps caps;
592 struct omapfb_mem_info mem_info;
593 struct omapfb_color_key color_key;
594 struct omapfb_ovl_colormode ovl_colormode;
595 enum omapfb_update_mode update_mode;
596 int test_num;
597 struct omapfb_memory_read memory_read;
598 struct omapfb_vram_info vram_info;
599 struct omapfb_tearsync_info tearsync_info;
600 struct omapfb_display_info display_info;
601 u32 crt;
602 } p;
603
604 int r = 0;
605
606 switch (cmd) {
607 case OMAPFB_SYNC_GFX:
608 DBG("ioctl SYNC_GFX\n");
609 if (!display || !display->driver->sync) {
610 /* DSS1 never returns an error here, so we neither */
611 /*r = -EINVAL;*/
612 break;
613 }
614
615 r = display->driver->sync(display);
616 break;
617
618 case OMAPFB_UPDATE_WINDOW_OLD:
619 DBG("ioctl UPDATE_WINDOW_OLD\n");
620 if (!display || !display->driver->update) {
621 r = -EINVAL;
622 break;
623 }
624
625 if (copy_from_user(&p.uwnd_o,
626 (void __user *)arg,
627 sizeof(p.uwnd_o))) {
628 r = -EFAULT;
629 break;
630 }
631
632 r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
633 p.uwnd_o.width, p.uwnd_o.height);
634 break;
635
636 case OMAPFB_UPDATE_WINDOW:
637 DBG("ioctl UPDATE_WINDOW\n");
638 if (!display || !display->driver->update) {
639 r = -EINVAL;
640 break;
641 }
642
643 if (copy_from_user(&p.uwnd, (void __user *)arg,
644 sizeof(p.uwnd))) {
645 r = -EFAULT;
646 break;
647 }
648
649 r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
650 p.uwnd.width, p.uwnd.height);
651 break;
652
653 case OMAPFB_SETUP_PLANE:
654 DBG("ioctl SETUP_PLANE\n");
655 if (copy_from_user(&p.plane_info, (void __user *)arg,
656 sizeof(p.plane_info)))
657 r = -EFAULT;
658 else
659 r = omapfb_setup_plane(fbi, &p.plane_info);
660 break;
661
662 case OMAPFB_QUERY_PLANE:
663 DBG("ioctl QUERY_PLANE\n");
664 r = omapfb_query_plane(fbi, &p.plane_info);
665 if (r < 0)
666 break;
667 if (copy_to_user((void __user *)arg, &p.plane_info,
668 sizeof(p.plane_info)))
669 r = -EFAULT;
670 break;
671
672 case OMAPFB_SETUP_MEM:
673 DBG("ioctl SETUP_MEM\n");
674 if (copy_from_user(&p.mem_info, (void __user *)arg,
675 sizeof(p.mem_info)))
676 r = -EFAULT;
677 else
678 r = omapfb_setup_mem(fbi, &p.mem_info);
679 break;
680
681 case OMAPFB_QUERY_MEM:
682 DBG("ioctl QUERY_MEM\n");
683 r = omapfb_query_mem(fbi, &p.mem_info);
684 if (r < 0)
685 break;
686 if (copy_to_user((void __user *)arg, &p.mem_info,
687 sizeof(p.mem_info)))
688 r = -EFAULT;
689 break;
690
691 case OMAPFB_GET_CAPS:
692 DBG("ioctl GET_CAPS\n");
693 if (!display) {
694 r = -EINVAL;
695 break;
696 }
697
698 memset(&p.caps, 0, sizeof(p.caps));
699 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
700 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
701 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
702 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
703
704 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
705 r = -EFAULT;
706 break;
707
708 case OMAPFB_GET_OVERLAY_COLORMODE:
709 DBG("ioctl GET_OVERLAY_COLORMODE\n");
710 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
711 sizeof(p.ovl_colormode))) {
712 r = -EFAULT;
713 break;
714 }
715 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
716 if (r < 0)
717 break;
718 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
719 sizeof(p.ovl_colormode)))
720 r = -EFAULT;
721 break;
722
723 case OMAPFB_SET_UPDATE_MODE:
724 DBG("ioctl SET_UPDATE_MODE\n");
725 if (get_user(p.update_mode, (int __user *)arg))
726 r = -EFAULT;
727 else
728 r = omapfb_set_update_mode(fbi, p.update_mode);
729 break;
730
731 case OMAPFB_GET_UPDATE_MODE:
732 DBG("ioctl GET_UPDATE_MODE\n");
733 r = omapfb_get_update_mode(fbi, &p.update_mode);
734 if (r)
735 break;
736 if (put_user(p.update_mode,
737 (enum omapfb_update_mode __user *)arg))
738 r = -EFAULT;
739 break;
740
741 case OMAPFB_SET_COLOR_KEY:
742 DBG("ioctl SET_COLOR_KEY\n");
743 if (copy_from_user(&p.color_key, (void __user *)arg,
744 sizeof(p.color_key)))
745 r = -EFAULT;
746 else
747 r = omapfb_set_color_key(fbi, &p.color_key);
748 break;
749
750 case OMAPFB_GET_COLOR_KEY:
751 DBG("ioctl GET_COLOR_KEY\n");
752 r = omapfb_get_color_key(fbi, &p.color_key);
753 if (r)
754 break;
755 if (copy_to_user((void __user *)arg, &p.color_key,
756 sizeof(p.color_key)))
757 r = -EFAULT;
758 break;
759
760 case FBIO_WAITFORVSYNC:
761 if (get_user(p.crt, (__u32 __user *)arg)) {
762 r = -EFAULT;
763 break;
764 }
765 if (p.crt != 0) {
766 r = -ENODEV;
767 break;
768 }
769 /* FALLTHROUGH */
770
771 case OMAPFB_WAITFORVSYNC:
772 DBG("ioctl WAITFORVSYNC\n");
773
774 if (!display) {
775 r = -EINVAL;
776 break;
777 }
778
779 mgr = omapdss_find_mgr_from_display(display);
780 if (!mgr) {
781 r = -EINVAL;
782 break;
783 }
784
785 r = mgr->wait_for_vsync(mgr);
786 break;
787
788 case OMAPFB_WAITFORGO:
789 DBG("ioctl WAITFORGO\n");
790 if (!display) {
791 r = -EINVAL;
792 break;
793 }
794
795 r = omapfb_wait_for_go(fbi);
796 break;
797
798 /* LCD and CTRL tests do the same thing for backward
799 * compatibility */
800 case OMAPFB_LCD_TEST:
801 DBG("ioctl LCD_TEST\n");
802 if (get_user(p.test_num, (int __user *)arg)) {
803 r = -EFAULT;
804 break;
805 }
806 if (!display || !display->driver->run_test) {
807 r = -EINVAL;
808 break;
809 }
810
811 r = display->driver->run_test(display, p.test_num);
812
813 break;
814
815 case OMAPFB_CTRL_TEST:
816 DBG("ioctl CTRL_TEST\n");
817 if (get_user(p.test_num, (int __user *)arg)) {
818 r = -EFAULT;
819 break;
820 }
821 if (!display || !display->driver->run_test) {
822 r = -EINVAL;
823 break;
824 }
825
826 r = display->driver->run_test(display, p.test_num);
827
828 break;
829
830 case OMAPFB_MEMORY_READ:
831 DBG("ioctl MEMORY_READ\n");
832
833 if (copy_from_user(&p.memory_read, (void __user *)arg,
834 sizeof(p.memory_read))) {
835 r = -EFAULT;
836 break;
837 }
838
839 r = omapfb_memory_read(fbi, &p.memory_read);
840
841 break;
842
843 case OMAPFB_GET_VRAM_INFO: {
844 DBG("ioctl GET_VRAM_INFO\n");
845
846 /*
847 * We don't have the ability to get this vram info anymore.
848 * Fill in something that should keep the applications working.
849 */
850 p.vram_info.total = SZ_1M * 64;
851 p.vram_info.free = SZ_1M * 64;
852 p.vram_info.largest_free_block = SZ_1M * 64;
853
854 if (copy_to_user((void __user *)arg, &p.vram_info,
855 sizeof(p.vram_info)))
856 r = -EFAULT;
857 break;
858 }
859
860 case OMAPFB_SET_TEARSYNC: {
861 DBG("ioctl SET_TEARSYNC\n");
862
863 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
864 sizeof(p.tearsync_info))) {
865 r = -EFAULT;
866 break;
867 }
868
869 if (!display || !display->driver->enable_te) {
870 r = -ENODEV;
871 break;
872 }
873
874 r = display->driver->enable_te(display,
875 !!p.tearsync_info.enabled);
876
877 break;
878 }
879
880 case OMAPFB_GET_DISPLAY_INFO: {
881 u16 xres, yres;
882
883 DBG("ioctl GET_DISPLAY_INFO\n");
884
885 if (display == NULL) {
886 r = -ENODEV;
887 break;
888 }
889
890 display->driver->get_resolution(display, &xres, &yres);
891
892 p.display_info.xres = xres;
893 p.display_info.yres = yres;
894
895 if (display->driver->get_dimensions) {
896 u32 w, h;
897 display->driver->get_dimensions(display, &w, &h);
898 p.display_info.width = w;
899 p.display_info.height = h;
900 } else {
901 p.display_info.width = 0;
902 p.display_info.height = 0;
903 }
904
905 if (copy_to_user((void __user *)arg, &p.display_info,
906 sizeof(p.display_info)))
907 r = -EFAULT;
908 break;
909 }
910
911 default:
912 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
913 r = -EINVAL;
914 }
915
916 if (r < 0)
917 DBG("ioctl failed: %d\n", r);
918
919 return r;
920}
921
922
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
deleted file mode 100644
index ec2d132c782d..000000000000
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ /dev/null
@@ -1,2656 +0,0 @@
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/slab.h>
26#include <linux/fb.h>
27#include <linux/dma-mapping.h>
28#include <linux/vmalloc.h>
29#include <linux/device.h>
30#include <linux/platform_device.h>
31#include <linux/omapfb.h>
32
33#include <video/omapdss.h>
34#include <video/omapvrfb.h>
35
36#include "omapfb.h"
37
38#define MODULE_NAME "omapfb"
39
40#define OMAPFB_PLANE_XRES_MIN 8
41#define OMAPFB_PLANE_YRES_MIN 8
42
43static char *def_mode;
44static char *def_vram;
45static bool def_vrfb;
46static int def_rotate;
47static bool def_mirror;
48static bool auto_update;
49static unsigned int auto_update_freq;
50module_param(auto_update, bool, 0);
51module_param(auto_update_freq, uint, 0644);
52
53#ifdef DEBUG
54bool omapfb_debug;
55module_param_named(debug, omapfb_debug, bool, 0644);
56static bool omapfb_test_pattern;
57module_param_named(test, omapfb_test_pattern, bool, 0644);
58#endif
59
60static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi);
61static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev,
62 struct omap_dss_device *dssdev);
63
64#ifdef DEBUG
65static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color)
66{
67 struct fb_var_screeninfo *var = &fbi->var;
68 struct fb_fix_screeninfo *fix = &fbi->fix;
69 void __iomem *addr = fbi->screen_base;
70 const unsigned bytespp = var->bits_per_pixel >> 3;
71 const unsigned line_len = fix->line_length / bytespp;
72
73 int r = (color >> 16) & 0xff;
74 int g = (color >> 8) & 0xff;
75 int b = (color >> 0) & 0xff;
76
77 if (var->bits_per_pixel == 16) {
78 u16 __iomem *p = (u16 __iomem *)addr;
79 p += y * line_len + x;
80
81 r = r * 32 / 256;
82 g = g * 64 / 256;
83 b = b * 32 / 256;
84
85 __raw_writew((r << 11) | (g << 5) | (b << 0), p);
86 } else if (var->bits_per_pixel == 24) {
87 u8 __iomem *p = (u8 __iomem *)addr;
88 p += (y * line_len + x) * 3;
89
90 __raw_writeb(b, p + 0);
91 __raw_writeb(g, p + 1);
92 __raw_writeb(r, p + 2);
93 } else if (var->bits_per_pixel == 32) {
94 u32 __iomem *p = (u32 __iomem *)addr;
95 p += y * line_len + x;
96 __raw_writel(color, p);
97 }
98}
99
100static void fill_fb(struct fb_info *fbi)
101{
102 struct fb_var_screeninfo *var = &fbi->var;
103 const short w = var->xres_virtual;
104 const short h = var->yres_virtual;
105 void __iomem *addr = fbi->screen_base;
106 int y, x;
107
108 if (!addr)
109 return;
110
111 DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length);
112
113 for (y = 0; y < h; y++) {
114 for (x = 0; x < w; x++) {
115 if (x < 20 && y < 20)
116 draw_pixel(fbi, x, y, 0xffffff);
117 else if (x < 20 && (y > 20 && y < h - 20))
118 draw_pixel(fbi, x, y, 0xff);
119 else if (y < 20 && (x > 20 && x < w - 20))
120 draw_pixel(fbi, x, y, 0xff00);
121 else if (x > w - 20 && (y > 20 && y < h - 20))
122 draw_pixel(fbi, x, y, 0xff0000);
123 else if (y > h - 20 && (x > 20 && x < w - 20))
124 draw_pixel(fbi, x, y, 0xffff00);
125 else if (x == 20 || x == w - 20 ||
126 y == 20 || y == h - 20)
127 draw_pixel(fbi, x, y, 0xffffff);
128 else if (x == y || w - x == h - y)
129 draw_pixel(fbi, x, y, 0xff00ff);
130 else if (w - x == y || x == h - y)
131 draw_pixel(fbi, x, y, 0x00ffff);
132 else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) {
133 int t = x * 3 / w;
134 unsigned r = 0, g = 0, b = 0;
135 unsigned c;
136 if (var->bits_per_pixel == 16) {
137 if (t == 0)
138 b = (y % 32) * 256 / 32;
139 else if (t == 1)
140 g = (y % 64) * 256 / 64;
141 else if (t == 2)
142 r = (y % 32) * 256 / 32;
143 } else {
144 if (t == 0)
145 b = (y % 256);
146 else if (t == 1)
147 g = (y % 256);
148 else if (t == 2)
149 r = (y % 256);
150 }
151 c = (r << 16) | (g << 8) | (b << 0);
152 draw_pixel(fbi, x, y, c);
153 } else {
154 draw_pixel(fbi, x, y, 0);
155 }
156 }
157 }
158}
159#endif
160
161static unsigned omapfb_get_vrfb_offset(const struct omapfb_info *ofbi, int rot)
162{
163 const struct vrfb *vrfb = &ofbi->region->vrfb;
164 unsigned offset;
165
166 switch (rot) {
167 case FB_ROTATE_UR:
168 offset = 0;
169 break;
170 case FB_ROTATE_CW:
171 offset = vrfb->yoffset;
172 break;
173 case FB_ROTATE_UD:
174 offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset;
175 break;
176 case FB_ROTATE_CCW:
177 offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN;
178 break;
179 default:
180 BUG();
181 return 0;
182 }
183
184 offset *= vrfb->bytespp;
185
186 return offset;
187}
188
189static u32 omapfb_get_region_rot_paddr(const struct omapfb_info *ofbi, int rot)
190{
191 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
192 return ofbi->region->vrfb.paddr[rot]
193 + omapfb_get_vrfb_offset(ofbi, rot);
194 } else {
195 return ofbi->region->paddr;
196 }
197}
198
199static u32 omapfb_get_region_paddr(const struct omapfb_info *ofbi)
200{
201 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
202 return ofbi->region->vrfb.paddr[0];
203 else
204 return ofbi->region->paddr;
205}
206
207static void __iomem *omapfb_get_region_vaddr(const struct omapfb_info *ofbi)
208{
209 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
210 return ofbi->region->vrfb.vaddr[0];
211 else
212 return ofbi->region->vaddr;
213}
214
215static struct omapfb_colormode omapfb_colormodes[] = {
216 {
217 .dssmode = OMAP_DSS_COLOR_UYVY,
218 .bits_per_pixel = 16,
219 .nonstd = OMAPFB_COLOR_YUV422,
220 }, {
221 .dssmode = OMAP_DSS_COLOR_YUV2,
222 .bits_per_pixel = 16,
223 .nonstd = OMAPFB_COLOR_YUY422,
224 }, {
225 .dssmode = OMAP_DSS_COLOR_ARGB16,
226 .bits_per_pixel = 16,
227 .red = { .length = 4, .offset = 8, .msb_right = 0 },
228 .green = { .length = 4, .offset = 4, .msb_right = 0 },
229 .blue = { .length = 4, .offset = 0, .msb_right = 0 },
230 .transp = { .length = 4, .offset = 12, .msb_right = 0 },
231 }, {
232 .dssmode = OMAP_DSS_COLOR_RGB16,
233 .bits_per_pixel = 16,
234 .red = { .length = 5, .offset = 11, .msb_right = 0 },
235 .green = { .length = 6, .offset = 5, .msb_right = 0 },
236 .blue = { .length = 5, .offset = 0, .msb_right = 0 },
237 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
238 }, {
239 .dssmode = OMAP_DSS_COLOR_RGB24P,
240 .bits_per_pixel = 24,
241 .red = { .length = 8, .offset = 16, .msb_right = 0 },
242 .green = { .length = 8, .offset = 8, .msb_right = 0 },
243 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
244 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
245 }, {
246 .dssmode = OMAP_DSS_COLOR_RGB24U,
247 .bits_per_pixel = 32,
248 .red = { .length = 8, .offset = 16, .msb_right = 0 },
249 .green = { .length = 8, .offset = 8, .msb_right = 0 },
250 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
251 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
252 }, {
253 .dssmode = OMAP_DSS_COLOR_ARGB32,
254 .bits_per_pixel = 32,
255 .red = { .length = 8, .offset = 16, .msb_right = 0 },
256 .green = { .length = 8, .offset = 8, .msb_right = 0 },
257 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
258 .transp = { .length = 8, .offset = 24, .msb_right = 0 },
259 }, {
260 .dssmode = OMAP_DSS_COLOR_RGBA32,
261 .bits_per_pixel = 32,
262 .red = { .length = 8, .offset = 24, .msb_right = 0 },
263 .green = { .length = 8, .offset = 16, .msb_right = 0 },
264 .blue = { .length = 8, .offset = 8, .msb_right = 0 },
265 .transp = { .length = 8, .offset = 0, .msb_right = 0 },
266 }, {
267 .dssmode = OMAP_DSS_COLOR_RGBX32,
268 .bits_per_pixel = 32,
269 .red = { .length = 8, .offset = 24, .msb_right = 0 },
270 .green = { .length = 8, .offset = 16, .msb_right = 0 },
271 .blue = { .length = 8, .offset = 8, .msb_right = 0 },
272 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
273 },
274};
275
276static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
277 struct omapfb_colormode *color)
278{
279 bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2)
280 {
281 return f1->length == f2->length &&
282 f1->offset == f2->offset &&
283 f1->msb_right == f2->msb_right;
284 }
285
286 if (var->bits_per_pixel == 0 ||
287 var->red.length == 0 ||
288 var->blue.length == 0 ||
289 var->green.length == 0)
290 return 0;
291
292 return var->bits_per_pixel == color->bits_per_pixel &&
293 cmp_component(&var->red, &color->red) &&
294 cmp_component(&var->green, &color->green) &&
295 cmp_component(&var->blue, &color->blue) &&
296 cmp_component(&var->transp, &color->transp);
297}
298
299static void assign_colormode_to_var(struct fb_var_screeninfo *var,
300 struct omapfb_colormode *color)
301{
302 var->bits_per_pixel = color->bits_per_pixel;
303 var->nonstd = color->nonstd;
304 var->red = color->red;
305 var->green = color->green;
306 var->blue = color->blue;
307 var->transp = color->transp;
308}
309
310static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var,
311 enum omap_color_mode *mode)
312{
313 enum omap_color_mode dssmode;
314 int i;
315
316 /* first match with nonstd field */
317 if (var->nonstd) {
318 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
319 struct omapfb_colormode *m = &omapfb_colormodes[i];
320 if (var->nonstd == m->nonstd) {
321 assign_colormode_to_var(var, m);
322 *mode = m->dssmode;
323 return 0;
324 }
325 }
326
327 return -EINVAL;
328 }
329
330 /* then try exact match of bpp and colors */
331 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
332 struct omapfb_colormode *m = &omapfb_colormodes[i];
333 if (cmp_var_to_colormode(var, m)) {
334 assign_colormode_to_var(var, m);
335 *mode = m->dssmode;
336 return 0;
337 }
338 }
339
340 /* match with bpp if user has not filled color fields
341 * properly */
342 switch (var->bits_per_pixel) {
343 case 1:
344 dssmode = OMAP_DSS_COLOR_CLUT1;
345 break;
346 case 2:
347 dssmode = OMAP_DSS_COLOR_CLUT2;
348 break;
349 case 4:
350 dssmode = OMAP_DSS_COLOR_CLUT4;
351 break;
352 case 8:
353 dssmode = OMAP_DSS_COLOR_CLUT8;
354 break;
355 case 12:
356 dssmode = OMAP_DSS_COLOR_RGB12U;
357 break;
358 case 16:
359 dssmode = OMAP_DSS_COLOR_RGB16;
360 break;
361 case 24:
362 dssmode = OMAP_DSS_COLOR_RGB24P;
363 break;
364 case 32:
365 dssmode = OMAP_DSS_COLOR_RGB24U;
366 break;
367 default:
368 return -EINVAL;
369 }
370
371 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
372 struct omapfb_colormode *m = &omapfb_colormodes[i];
373 if (dssmode == m->dssmode) {
374 assign_colormode_to_var(var, m);
375 *mode = m->dssmode;
376 return 0;
377 }
378 }
379
380 return -EINVAL;
381}
382
383static int check_fb_res_bounds(struct fb_var_screeninfo *var)
384{
385 int xres_min = OMAPFB_PLANE_XRES_MIN;
386 int xres_max = 2048;
387 int yres_min = OMAPFB_PLANE_YRES_MIN;
388 int yres_max = 2048;
389
390 /* XXX: some applications seem to set virtual res to 0. */
391 if (var->xres_virtual == 0)
392 var->xres_virtual = var->xres;
393
394 if (var->yres_virtual == 0)
395 var->yres_virtual = var->yres;
396
397 if (var->xres_virtual < xres_min || var->yres_virtual < yres_min)
398 return -EINVAL;
399
400 if (var->xres < xres_min)
401 var->xres = xres_min;
402 if (var->yres < yres_min)
403 var->yres = yres_min;
404 if (var->xres > xres_max)
405 var->xres = xres_max;
406 if (var->yres > yres_max)
407 var->yres = yres_max;
408
409 if (var->xres > var->xres_virtual)
410 var->xres = var->xres_virtual;
411 if (var->yres > var->yres_virtual)
412 var->yres = var->yres_virtual;
413
414 return 0;
415}
416
417static void shrink_height(unsigned long max_frame_size,
418 struct fb_var_screeninfo *var)
419{
420 DBG("can't fit FB into memory, reducing y\n");
421 var->yres_virtual = max_frame_size /
422 (var->xres_virtual * var->bits_per_pixel >> 3);
423
424 if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN)
425 var->yres_virtual = OMAPFB_PLANE_YRES_MIN;
426
427 if (var->yres > var->yres_virtual)
428 var->yres = var->yres_virtual;
429}
430
431static void shrink_width(unsigned long max_frame_size,
432 struct fb_var_screeninfo *var)
433{
434 DBG("can't fit FB into memory, reducing x\n");
435 var->xres_virtual = max_frame_size / var->yres_virtual /
436 (var->bits_per_pixel >> 3);
437
438 if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN)
439 var->xres_virtual = OMAPFB_PLANE_XRES_MIN;
440
441 if (var->xres > var->xres_virtual)
442 var->xres = var->xres_virtual;
443}
444
445static int check_vrfb_fb_size(unsigned long region_size,
446 const struct fb_var_screeninfo *var)
447{
448 unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual,
449 var->yres_virtual, var->bits_per_pixel >> 3);
450
451 return min_phys_size > region_size ? -EINVAL : 0;
452}
453
454static int check_fb_size(const struct omapfb_info *ofbi,
455 struct fb_var_screeninfo *var)
456{
457 unsigned long max_frame_size = ofbi->region->size;
458 int bytespp = var->bits_per_pixel >> 3;
459 unsigned long line_size = var->xres_virtual * bytespp;
460
461 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
462 /* One needs to check for both VRFB and OMAPFB limitations. */
463 if (check_vrfb_fb_size(max_frame_size, var))
464 shrink_height(omap_vrfb_max_height(
465 max_frame_size, var->xres_virtual, bytespp) *
466 line_size, var);
467
468 if (check_vrfb_fb_size(max_frame_size, var)) {
469 DBG("cannot fit FB to memory\n");
470 return -EINVAL;
471 }
472
473 return 0;
474 }
475
476 DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size);
477
478 if (line_size * var->yres_virtual > max_frame_size)
479 shrink_height(max_frame_size, var);
480
481 if (line_size * var->yres_virtual > max_frame_size) {
482 shrink_width(max_frame_size, var);
483 line_size = var->xres_virtual * bytespp;
484 }
485
486 if (line_size * var->yres_virtual > max_frame_size) {
487 DBG("cannot fit FB to memory\n");
488 return -EINVAL;
489 }
490
491 return 0;
492}
493
494/*
495 * Consider if VRFB assisted rotation is in use and if the virtual space for
496 * the zero degree view needs to be mapped. The need for mapping also acts as
497 * the trigger for setting up the hardware on the context in question. This
498 * ensures that one does not attempt to access the virtual view before the
499 * hardware is serving the address translations.
500 */
501static int setup_vrfb_rotation(struct fb_info *fbi)
502{
503 struct omapfb_info *ofbi = FB2OFB(fbi);
504 struct omapfb2_mem_region *rg = ofbi->region;
505 struct vrfb *vrfb = &rg->vrfb;
506 struct fb_var_screeninfo *var = &fbi->var;
507 struct fb_fix_screeninfo *fix = &fbi->fix;
508 unsigned bytespp;
509 bool yuv_mode;
510 enum omap_color_mode mode;
511 int r;
512 bool reconf;
513
514 if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB)
515 return 0;
516
517 DBG("setup_vrfb_rotation\n");
518
519 r = fb_mode_to_dss_mode(var, &mode);
520 if (r)
521 return r;
522
523 bytespp = var->bits_per_pixel >> 3;
524
525 yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY;
526
527 /* We need to reconfigure VRFB if the resolution changes, if yuv mode
528 * is enabled/disabled, or if bytes per pixel changes */
529
530 /* XXX we shouldn't allow this when framebuffer is mmapped */
531
532 reconf = false;
533
534 if (yuv_mode != vrfb->yuv_mode)
535 reconf = true;
536 else if (bytespp != vrfb->bytespp)
537 reconf = true;
538 else if (vrfb->xres != var->xres_virtual ||
539 vrfb->yres != var->yres_virtual)
540 reconf = true;
541
542 if (vrfb->vaddr[0] && reconf) {
543 fbi->screen_base = NULL;
544 fix->smem_start = 0;
545 fix->smem_len = 0;
546 iounmap(vrfb->vaddr[0]);
547 vrfb->vaddr[0] = NULL;
548 DBG("setup_vrfb_rotation: reset fb\n");
549 }
550
551 if (vrfb->vaddr[0])
552 return 0;
553
554 omap_vrfb_setup(&rg->vrfb, rg->paddr,
555 var->xres_virtual,
556 var->yres_virtual,
557 bytespp, yuv_mode);
558
559 /* Now one can ioremap the 0 angle view */
560 r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0);
561 if (r)
562 return r;
563
564 /* used by open/write in fbmem.c */
565 fbi->screen_base = ofbi->region->vrfb.vaddr[0];
566
567 fix->smem_start = ofbi->region->vrfb.paddr[0];
568
569 switch (var->nonstd) {
570 case OMAPFB_COLOR_YUV422:
571 case OMAPFB_COLOR_YUY422:
572 fix->line_length =
573 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
574 break;
575 default:
576 fix->line_length =
577 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
578 break;
579 }
580
581 fix->smem_len = var->yres_virtual * fix->line_length;
582
583 return 0;
584}
585
586int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
587 struct fb_var_screeninfo *var)
588{
589 int i;
590
591 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
592 struct omapfb_colormode *mode = &omapfb_colormodes[i];
593 if (dssmode == mode->dssmode) {
594 assign_colormode_to_var(var, mode);
595 return 0;
596 }
597 }
598 return -ENOENT;
599}
600
601void set_fb_fix(struct fb_info *fbi)
602{
603 struct fb_fix_screeninfo *fix = &fbi->fix;
604 struct fb_var_screeninfo *var = &fbi->var;
605 struct omapfb_info *ofbi = FB2OFB(fbi);
606 struct omapfb2_mem_region *rg = ofbi->region;
607
608 DBG("set_fb_fix\n");
609
610 /* used by open/write in fbmem.c */
611 fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi);
612
613 /* used by mmap in fbmem.c */
614 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
615 switch (var->nonstd) {
616 case OMAPFB_COLOR_YUV422:
617 case OMAPFB_COLOR_YUY422:
618 fix->line_length =
619 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
620 break;
621 default:
622 fix->line_length =
623 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
624 break;
625 }
626
627 fix->smem_len = var->yres_virtual * fix->line_length;
628 } else {
629 fix->line_length =
630 (var->xres_virtual * var->bits_per_pixel) >> 3;
631 fix->smem_len = rg->size;
632 }
633
634 fix->smem_start = omapfb_get_region_paddr(ofbi);
635
636 fix->type = FB_TYPE_PACKED_PIXELS;
637
638 if (var->nonstd)
639 fix->visual = FB_VISUAL_PSEUDOCOLOR;
640 else {
641 switch (var->bits_per_pixel) {
642 case 32:
643 case 24:
644 case 16:
645 case 12:
646 fix->visual = FB_VISUAL_TRUECOLOR;
647 /* 12bpp is stored in 16 bits */
648 break;
649 case 1:
650 case 2:
651 case 4:
652 case 8:
653 fix->visual = FB_VISUAL_PSEUDOCOLOR;
654 break;
655 }
656 }
657
658 fix->accel = FB_ACCEL_NONE;
659
660 fix->xpanstep = 1;
661 fix->ypanstep = 1;
662}
663
664/* check new var and possibly modify it to be ok */
665int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
666{
667 struct omapfb_info *ofbi = FB2OFB(fbi);
668 struct omap_dss_device *display = fb2display(fbi);
669 enum omap_color_mode mode = 0;
670 int i;
671 int r;
672
673 DBG("check_fb_var %d\n", ofbi->id);
674
675 WARN_ON(!atomic_read(&ofbi->region->lock_count));
676
677 r = fb_mode_to_dss_mode(var, &mode);
678 if (r) {
679 DBG("cannot convert var to omap dss mode\n");
680 return r;
681 }
682
683 for (i = 0; i < ofbi->num_overlays; ++i) {
684 if ((ofbi->overlays[i]->supported_modes & mode) == 0) {
685 DBG("invalid mode\n");
686 return -EINVAL;
687 }
688 }
689
690 if (var->rotate > 3)
691 return -EINVAL;
692
693 if (check_fb_res_bounds(var))
694 return -EINVAL;
695
696 /* When no memory is allocated ignore the size check */
697 if (ofbi->region->size != 0 && check_fb_size(ofbi, var))
698 return -EINVAL;
699
700 if (var->xres + var->xoffset > var->xres_virtual)
701 var->xoffset = var->xres_virtual - var->xres;
702 if (var->yres + var->yoffset > var->yres_virtual)
703 var->yoffset = var->yres_virtual - var->yres;
704
705 DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
706 var->xres, var->yres,
707 var->xres_virtual, var->yres_virtual);
708
709 if (display && display->driver->get_dimensions) {
710 u32 w, h;
711 display->driver->get_dimensions(display, &w, &h);
712 var->width = DIV_ROUND_CLOSEST(w, 1000);
713 var->height = DIV_ROUND_CLOSEST(h, 1000);
714 } else {
715 var->height = -1;
716 var->width = -1;
717 }
718
719 var->grayscale = 0;
720
721 if (display && display->driver->get_timings) {
722 struct omap_video_timings timings;
723 display->driver->get_timings(display, &timings);
724
725 /* pixclock in ps, the rest in pixclock */
726 var->pixclock = timings.pixelclock != 0 ?
727 KHZ2PICOS(timings.pixelclock / 1000) :
728 0;
729 var->left_margin = timings.hbp;
730 var->right_margin = timings.hfp;
731 var->upper_margin = timings.vbp;
732 var->lower_margin = timings.vfp;
733 var->hsync_len = timings.hsw;
734 var->vsync_len = timings.vsw;
735 var->sync |= timings.hsync_level == OMAPDSS_SIG_ACTIVE_HIGH ?
736 FB_SYNC_HOR_HIGH_ACT : 0;
737 var->sync |= timings.vsync_level == OMAPDSS_SIG_ACTIVE_HIGH ?
738 FB_SYNC_VERT_HIGH_ACT : 0;
739 var->vmode = timings.interlace ?
740 FB_VMODE_INTERLACED : FB_VMODE_NONINTERLACED;
741 } else {
742 var->pixclock = 0;
743 var->left_margin = 0;
744 var->right_margin = 0;
745 var->upper_margin = 0;
746 var->lower_margin = 0;
747 var->hsync_len = 0;
748 var->vsync_len = 0;
749 var->sync = 0;
750 var->vmode = FB_VMODE_NONINTERLACED;
751 }
752
753 return 0;
754}
755
756/*
757 * ---------------------------------------------------------------------------
758 * fbdev framework callbacks
759 * ---------------------------------------------------------------------------
760 */
761static int omapfb_open(struct fb_info *fbi, int user)
762{
763 return 0;
764}
765
766static int omapfb_release(struct fb_info *fbi, int user)
767{
768 return 0;
769}
770
771static unsigned calc_rotation_offset_dma(const struct fb_var_screeninfo *var,
772 const struct fb_fix_screeninfo *fix, int rotation)
773{
774 unsigned offset;
775
776 offset = var->yoffset * fix->line_length +
777 var->xoffset * (var->bits_per_pixel >> 3);
778
779 return offset;
780}
781
782static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var,
783 const struct fb_fix_screeninfo *fix, int rotation)
784{
785 unsigned offset;
786
787 if (rotation == FB_ROTATE_UD)
788 offset = (var->yres_virtual - var->yres) *
789 fix->line_length;
790 else if (rotation == FB_ROTATE_CW)
791 offset = (var->yres_virtual - var->yres) *
792 (var->bits_per_pixel >> 3);
793 else
794 offset = 0;
795
796 if (rotation == FB_ROTATE_UR)
797 offset += var->yoffset * fix->line_length +
798 var->xoffset * (var->bits_per_pixel >> 3);
799 else if (rotation == FB_ROTATE_UD)
800 offset -= var->yoffset * fix->line_length +
801 var->xoffset * (var->bits_per_pixel >> 3);
802 else if (rotation == FB_ROTATE_CW)
803 offset -= var->xoffset * fix->line_length +
804 var->yoffset * (var->bits_per_pixel >> 3);
805 else if (rotation == FB_ROTATE_CCW)
806 offset += var->xoffset * fix->line_length +
807 var->yoffset * (var->bits_per_pixel >> 3);
808
809 return offset;
810}
811
812static void omapfb_calc_addr(const struct omapfb_info *ofbi,
813 const struct fb_var_screeninfo *var,
814 const struct fb_fix_screeninfo *fix,
815 int rotation, u32 *paddr)
816{
817 u32 data_start_p;
818 int offset;
819
820 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
821 data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
822 else
823 data_start_p = omapfb_get_region_paddr(ofbi);
824
825 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
826 offset = calc_rotation_offset_vrfb(var, fix, rotation);
827 else
828 offset = calc_rotation_offset_dma(var, fix, rotation);
829
830 data_start_p += offset;
831
832 if (offset)
833 DBG("offset %d, %d = %d\n",
834 var->xoffset, var->yoffset, offset);
835
836 DBG("paddr %x\n", data_start_p);
837
838 *paddr = data_start_p;
839}
840
841/* setup overlay according to the fb */
842int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
843 u16 posx, u16 posy, u16 outw, u16 outh)
844{
845 int r = 0;
846 struct omapfb_info *ofbi = FB2OFB(fbi);
847 struct fb_var_screeninfo *var = &fbi->var;
848 struct fb_fix_screeninfo *fix = &fbi->fix;
849 enum omap_color_mode mode = 0;
850 u32 data_start_p = 0;
851 struct omap_overlay_info info;
852 int xres, yres;
853 int screen_width;
854 int mirror;
855 int rotation = var->rotate;
856 int i;
857
858 WARN_ON(!atomic_read(&ofbi->region->lock_count));
859
860 for (i = 0; i < ofbi->num_overlays; i++) {
861 if (ovl != ofbi->overlays[i])
862 continue;
863
864 rotation = (rotation + ofbi->rotation[i]) % 4;
865 break;
866 }
867
868 DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id,
869 posx, posy, outw, outh);
870
871 if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) {
872 xres = var->yres;
873 yres = var->xres;
874 } else {
875 xres = var->xres;
876 yres = var->yres;
877 }
878
879 if (ofbi->region->size)
880 omapfb_calc_addr(ofbi, var, fix, rotation, &data_start_p);
881
882 r = fb_mode_to_dss_mode(var, &mode);
883 if (r) {
884 DBG("fb_mode_to_dss_mode failed");
885 goto err;
886 }
887
888 switch (var->nonstd) {
889 case OMAPFB_COLOR_YUV422:
890 case OMAPFB_COLOR_YUY422:
891 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
892 screen_width = fix->line_length
893 / (var->bits_per_pixel >> 2);
894 break;
895 }
896 default:
897 screen_width = fix->line_length / (var->bits_per_pixel >> 3);
898 break;
899 }
900
901 ovl->get_overlay_info(ovl, &info);
902
903 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
904 mirror = 0;
905 else
906 mirror = ofbi->mirror;
907
908 info.paddr = data_start_p;
909 info.screen_width = screen_width;
910 info.width = xres;
911 info.height = yres;
912 info.color_mode = mode;
913 info.rotation_type = ofbi->rotation_type;
914 info.rotation = rotation;
915 info.mirror = mirror;
916
917 info.pos_x = posx;
918 info.pos_y = posy;
919 info.out_width = outw;
920 info.out_height = outh;
921
922 r = ovl->set_overlay_info(ovl, &info);
923 if (r) {
924 DBG("ovl->setup_overlay_info failed\n");
925 goto err;
926 }
927
928 return 0;
929
930err:
931 DBG("setup_overlay failed\n");
932 return r;
933}
934
935/* apply var to the overlay */
936int omapfb_apply_changes(struct fb_info *fbi, int init)
937{
938 int r = 0;
939 struct omapfb_info *ofbi = FB2OFB(fbi);
940 struct fb_var_screeninfo *var = &fbi->var;
941 struct omap_overlay *ovl;
942 u16 posx, posy;
943 u16 outw, outh;
944 int i;
945
946#ifdef DEBUG
947 if (omapfb_test_pattern)
948 fill_fb(fbi);
949#endif
950
951 WARN_ON(!atomic_read(&ofbi->region->lock_count));
952
953 for (i = 0; i < ofbi->num_overlays; i++) {
954 ovl = ofbi->overlays[i];
955
956 DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id);
957
958 if (ofbi->region->size == 0) {
959 /* the fb is not available. disable the overlay */
960 omapfb_overlay_enable(ovl, 0);
961 if (!init && ovl->manager)
962 ovl->manager->apply(ovl->manager);
963 continue;
964 }
965
966 if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
967 int rotation = (var->rotate + ofbi->rotation[i]) % 4;
968 if (rotation == FB_ROTATE_CW ||
969 rotation == FB_ROTATE_CCW) {
970 outw = var->yres;
971 outh = var->xres;
972 } else {
973 outw = var->xres;
974 outh = var->yres;
975 }
976 } else {
977 struct omap_overlay_info info;
978 ovl->get_overlay_info(ovl, &info);
979 outw = info.out_width;
980 outh = info.out_height;
981 }
982
983 if (init) {
984 posx = 0;
985 posy = 0;
986 } else {
987 struct omap_overlay_info info;
988 ovl->get_overlay_info(ovl, &info);
989 posx = info.pos_x;
990 posy = info.pos_y;
991 }
992
993 r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
994 if (r)
995 goto err;
996
997 if (!init && ovl->manager)
998 ovl->manager->apply(ovl->manager);
999 }
1000 return 0;
1001err:
1002 DBG("apply_changes failed\n");
1003 return r;
1004}
1005
1006/* checks var and eventually tweaks it to something supported,
1007 * DO NOT MODIFY PAR */
1008static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
1009{
1010 struct omapfb_info *ofbi = FB2OFB(fbi);
1011 int r;
1012
1013 DBG("check_var(%d)\n", FB2OFB(fbi)->id);
1014
1015 omapfb_get_mem_region(ofbi->region);
1016
1017 r = check_fb_var(fbi, var);
1018
1019 omapfb_put_mem_region(ofbi->region);
1020
1021 return r;
1022}
1023
1024/* set the video mode according to info->var */
1025static int omapfb_set_par(struct fb_info *fbi)
1026{
1027 struct omapfb_info *ofbi = FB2OFB(fbi);
1028 int r;
1029
1030 DBG("set_par(%d)\n", FB2OFB(fbi)->id);
1031
1032 omapfb_get_mem_region(ofbi->region);
1033
1034 set_fb_fix(fbi);
1035
1036 r = setup_vrfb_rotation(fbi);
1037 if (r)
1038 goto out;
1039
1040 r = omapfb_apply_changes(fbi, 0);
1041
1042 out:
1043 omapfb_put_mem_region(ofbi->region);
1044
1045 return r;
1046}
1047
1048static int omapfb_pan_display(struct fb_var_screeninfo *var,
1049 struct fb_info *fbi)
1050{
1051 struct omapfb_info *ofbi = FB2OFB(fbi);
1052 struct fb_var_screeninfo new_var;
1053 int r;
1054
1055 DBG("pan_display(%d)\n", FB2OFB(fbi)->id);
1056
1057 if (var->xoffset == fbi->var.xoffset &&
1058 var->yoffset == fbi->var.yoffset)
1059 return 0;
1060
1061 new_var = fbi->var;
1062 new_var.xoffset = var->xoffset;
1063 new_var.yoffset = var->yoffset;
1064
1065 fbi->var = new_var;
1066
1067 omapfb_get_mem_region(ofbi->region);
1068
1069 r = omapfb_apply_changes(fbi, 0);
1070
1071 omapfb_put_mem_region(ofbi->region);
1072
1073 return r;
1074}
1075
1076static void mmap_user_open(struct vm_area_struct *vma)
1077{
1078 struct omapfb2_mem_region *rg = vma->vm_private_data;
1079
1080 omapfb_get_mem_region(rg);
1081 atomic_inc(&rg->map_count);
1082 omapfb_put_mem_region(rg);
1083}
1084
1085static void mmap_user_close(struct vm_area_struct *vma)
1086{
1087 struct omapfb2_mem_region *rg = vma->vm_private_data;
1088
1089 omapfb_get_mem_region(rg);
1090 atomic_dec(&rg->map_count);
1091 omapfb_put_mem_region(rg);
1092}
1093
1094static struct vm_operations_struct mmap_user_ops = {
1095 .open = mmap_user_open,
1096 .close = mmap_user_close,
1097};
1098
1099static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
1100{
1101 struct omapfb_info *ofbi = FB2OFB(fbi);
1102 struct fb_fix_screeninfo *fix = &fbi->fix;
1103 struct omapfb2_mem_region *rg;
1104 unsigned long start;
1105 u32 len;
1106 int r;
1107
1108 rg = omapfb_get_mem_region(ofbi->region);
1109
1110 start = omapfb_get_region_paddr(ofbi);
1111 len = fix->smem_len;
1112
1113 DBG("user mmap region start %lx, len %d, off %lx\n", start, len,
1114 vma->vm_pgoff << PAGE_SHIFT);
1115
1116 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
1117 vma->vm_ops = &mmap_user_ops;
1118 vma->vm_private_data = rg;
1119
1120 r = vm_iomap_memory(vma, start, len);
1121 if (r)
1122 goto error;
1123
1124 /* vm_ops.open won't be called for mmap itself. */
1125 atomic_inc(&rg->map_count);
1126
1127 omapfb_put_mem_region(rg);
1128
1129 return 0;
1130
1131error:
1132 omapfb_put_mem_region(ofbi->region);
1133
1134 return r;
1135}
1136
1137/* Store a single color palette entry into a pseudo palette or the hardware
1138 * palette if one is available. For now we support only 16bpp and thus store
1139 * the entry only to the pseudo palette.
1140 */
1141static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
1142 u_int blue, u_int transp, int update_hw_pal)
1143{
1144 /*struct omapfb_info *ofbi = FB2OFB(fbi);*/
1145 /*struct omapfb2_device *fbdev = ofbi->fbdev;*/
1146 struct fb_var_screeninfo *var = &fbi->var;
1147 int r = 0;
1148
1149 enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */
1150
1151 /*switch (plane->color_mode) {*/
1152 switch (mode) {
1153 case OMAPFB_COLOR_YUV422:
1154 case OMAPFB_COLOR_YUV420:
1155 case OMAPFB_COLOR_YUY422:
1156 r = -EINVAL;
1157 break;
1158 case OMAPFB_COLOR_CLUT_8BPP:
1159 case OMAPFB_COLOR_CLUT_4BPP:
1160 case OMAPFB_COLOR_CLUT_2BPP:
1161 case OMAPFB_COLOR_CLUT_1BPP:
1162 /*
1163 if (fbdev->ctrl->setcolreg)
1164 r = fbdev->ctrl->setcolreg(regno, red, green, blue,
1165 transp, update_hw_pal);
1166 */
1167 /* Fallthrough */
1168 r = -EINVAL;
1169 break;
1170 case OMAPFB_COLOR_RGB565:
1171 case OMAPFB_COLOR_RGB444:
1172 case OMAPFB_COLOR_RGB24P:
1173 case OMAPFB_COLOR_RGB24U:
1174 if (r != 0)
1175 break;
1176
1177 if (regno < 16) {
1178 u32 pal;
1179 pal = ((red >> (16 - var->red.length)) <<
1180 var->red.offset) |
1181 ((green >> (16 - var->green.length)) <<
1182 var->green.offset) |
1183 (blue >> (16 - var->blue.length));
1184 ((u32 *)(fbi->pseudo_palette))[regno] = pal;
1185 }
1186 break;
1187 default:
1188 BUG();
1189 }
1190 return r;
1191}
1192
1193static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
1194 u_int transp, struct fb_info *info)
1195{
1196 DBG("setcolreg\n");
1197
1198 return _setcolreg(info, regno, red, green, blue, transp, 1);
1199}
1200
1201static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
1202{
1203 int count, index, r;
1204 u16 *red, *green, *blue, *transp;
1205 u16 trans = 0xffff;
1206
1207 DBG("setcmap\n");
1208
1209 red = cmap->red;
1210 green = cmap->green;
1211 blue = cmap->blue;
1212 transp = cmap->transp;
1213 index = cmap->start;
1214
1215 for (count = 0; count < cmap->len; count++) {
1216 if (transp)
1217 trans = *transp++;
1218 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
1219 count == cmap->len - 1);
1220 if (r != 0)
1221 return r;
1222 }
1223
1224 return 0;
1225}
1226
1227static int omapfb_blank(int blank, struct fb_info *fbi)
1228{
1229 struct omapfb_info *ofbi = FB2OFB(fbi);
1230 struct omapfb2_device *fbdev = ofbi->fbdev;
1231 struct omap_dss_device *display = fb2display(fbi);
1232 struct omapfb_display_data *d;
1233 int r = 0;
1234
1235 if (!display)
1236 return -EINVAL;
1237
1238 omapfb_lock(fbdev);
1239
1240 d = get_display_data(fbdev, display);
1241
1242 switch (blank) {
1243 case FB_BLANK_UNBLANK:
1244 if (display->state == OMAP_DSS_DISPLAY_ACTIVE)
1245 goto exit;
1246
1247 r = display->driver->enable(display);
1248
1249 if ((display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) &&
1250 d->update_mode == OMAPFB_AUTO_UPDATE &&
1251 !d->auto_update_work_enabled)
1252 omapfb_start_auto_update(fbdev, display);
1253
1254 break;
1255
1256 case FB_BLANK_NORMAL:
1257 /* FB_BLANK_NORMAL could be implemented.
1258 * Needs DSS additions. */
1259 case FB_BLANK_VSYNC_SUSPEND:
1260 case FB_BLANK_HSYNC_SUSPEND:
1261 case FB_BLANK_POWERDOWN:
1262 if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
1263 goto exit;
1264
1265 if (d->auto_update_work_enabled)
1266 omapfb_stop_auto_update(fbdev, display);
1267
1268 display->driver->disable(display);
1269
1270 break;
1271
1272 default:
1273 r = -EINVAL;
1274 }
1275
1276exit:
1277 omapfb_unlock(fbdev);
1278
1279 return r;
1280}
1281
1282#if 0
1283/* XXX fb_read and fb_write are needed for VRFB */
1284ssize_t omapfb_write(struct fb_info *info, const char __user *buf,
1285 size_t count, loff_t *ppos)
1286{
1287 DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos);
1288 /* XXX needed for VRFB */
1289 return count;
1290}
1291#endif
1292
1293static struct fb_ops omapfb_ops = {
1294 .owner = THIS_MODULE,
1295 .fb_open = omapfb_open,
1296 .fb_release = omapfb_release,
1297 .fb_fillrect = cfb_fillrect,
1298 .fb_copyarea = cfb_copyarea,
1299 .fb_imageblit = cfb_imageblit,
1300 .fb_blank = omapfb_blank,
1301 .fb_ioctl = omapfb_ioctl,
1302 .fb_check_var = omapfb_check_var,
1303 .fb_set_par = omapfb_set_par,
1304 .fb_pan_display = omapfb_pan_display,
1305 .fb_mmap = omapfb_mmap,
1306 .fb_setcolreg = omapfb_setcolreg,
1307 .fb_setcmap = omapfb_setcmap,
1308 /*.fb_write = omapfb_write,*/
1309};
1310
1311static void omapfb_free_fbmem(struct fb_info *fbi)
1312{
1313 struct omapfb_info *ofbi = FB2OFB(fbi);
1314 struct omapfb2_device *fbdev = ofbi->fbdev;
1315 struct omapfb2_mem_region *rg;
1316
1317 rg = ofbi->region;
1318
1319 if (rg->token == NULL)
1320 return;
1321
1322 WARN_ON(atomic_read(&rg->map_count));
1323
1324 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1325 /* unmap the 0 angle rotation */
1326 if (rg->vrfb.vaddr[0]) {
1327 iounmap(rg->vrfb.vaddr[0]);
1328 rg->vrfb.vaddr[0] = NULL;
1329 }
1330
1331 omap_vrfb_release_ctx(&rg->vrfb);
1332 }
1333
1334 dma_free_attrs(fbdev->dev, rg->size, rg->token, rg->dma_handle,
1335 &rg->attrs);
1336
1337 rg->token = NULL;
1338 rg->vaddr = NULL;
1339 rg->paddr = 0;
1340 rg->alloc = 0;
1341 rg->size = 0;
1342}
1343
1344static void clear_fb_info(struct fb_info *fbi)
1345{
1346 memset(&fbi->var, 0, sizeof(fbi->var));
1347 memset(&fbi->fix, 0, sizeof(fbi->fix));
1348 strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id));
1349}
1350
1351static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
1352{
1353 int i;
1354
1355 DBG("free all fbmem\n");
1356
1357 for (i = 0; i < fbdev->num_fbs; i++) {
1358 struct fb_info *fbi = fbdev->fbs[i];
1359 omapfb_free_fbmem(fbi);
1360 clear_fb_info(fbi);
1361 }
1362
1363 return 0;
1364}
1365
1366static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
1367 unsigned long paddr)
1368{
1369 struct omapfb_info *ofbi = FB2OFB(fbi);
1370 struct omapfb2_device *fbdev = ofbi->fbdev;
1371 struct omapfb2_mem_region *rg;
1372 void *token;
1373 DEFINE_DMA_ATTRS(attrs);
1374 dma_addr_t dma_handle;
1375 int r;
1376
1377 rg = ofbi->region;
1378
1379 rg->paddr = 0;
1380 rg->vaddr = NULL;
1381 memset(&rg->vrfb, 0, sizeof rg->vrfb);
1382 rg->size = 0;
1383 rg->type = 0;
1384 rg->alloc = false;
1385 rg->map = false;
1386
1387 size = PAGE_ALIGN(size);
1388
1389 dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
1390
1391 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
1392 dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &attrs);
1393
1394 DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
1395
1396 token = dma_alloc_attrs(fbdev->dev, size, &dma_handle,
1397 GFP_KERNEL, &attrs);
1398
1399 if (token == NULL) {
1400 dev_err(fbdev->dev, "failed to allocate framebuffer\n");
1401 return -ENOMEM;
1402 }
1403
1404 DBG("allocated VRAM paddr %lx, vaddr %p\n",
1405 (unsigned long)dma_handle, token);
1406
1407 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1408 r = omap_vrfb_request_ctx(&rg->vrfb);
1409 if (r) {
1410 dma_free_attrs(fbdev->dev, size, token, dma_handle,
1411 &attrs);
1412 dev_err(fbdev->dev, "vrfb create ctx failed\n");
1413 return r;
1414 }
1415 }
1416
1417 rg->attrs = attrs;
1418 rg->token = token;
1419 rg->dma_handle = dma_handle;
1420
1421 rg->paddr = (unsigned long)dma_handle;
1422 rg->vaddr = (void __iomem *)token;
1423 rg->size = size;
1424 rg->alloc = 1;
1425
1426 return 0;
1427}
1428
1429/* allocate fbmem using display resolution as reference */
1430static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
1431 unsigned long paddr)
1432{
1433 struct omapfb_info *ofbi = FB2OFB(fbi);
1434 struct omapfb2_device *fbdev = ofbi->fbdev;
1435 struct omap_dss_device *display;
1436 int bytespp;
1437
1438 display = fb2display(fbi);
1439
1440 if (!display)
1441 return 0;
1442
1443 switch (omapfb_get_recommended_bpp(fbdev, display)) {
1444 case 16:
1445 bytespp = 2;
1446 break;
1447 case 24:
1448 bytespp = 4;
1449 break;
1450 default:
1451 bytespp = 4;
1452 break;
1453 }
1454
1455 if (!size) {
1456 u16 w, h;
1457
1458 display->driver->get_resolution(display, &w, &h);
1459
1460 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1461 size = max(omap_vrfb_min_phys_size(w, h, bytespp),
1462 omap_vrfb_min_phys_size(h, w, bytespp));
1463
1464 DBG("adjusting fb mem size for VRFB, %u -> %lu\n",
1465 w * h * bytespp, size);
1466 } else {
1467 size = w * h * bytespp;
1468 }
1469 }
1470
1471 if (!size)
1472 return 0;
1473
1474 return omapfb_alloc_fbmem(fbi, size, paddr);
1475}
1476
1477static int omapfb_parse_vram_param(const char *param, int max_entries,
1478 unsigned long *sizes, unsigned long *paddrs)
1479{
1480 int fbnum;
1481 unsigned long size;
1482 unsigned long paddr = 0;
1483 char *p, *start;
1484
1485 start = (char *)param;
1486
1487 while (1) {
1488 p = start;
1489
1490 fbnum = simple_strtoul(p, &p, 10);
1491
1492 if (p == start)
1493 return -EINVAL;
1494
1495 if (*p != ':')
1496 return -EINVAL;
1497
1498 if (fbnum >= max_entries)
1499 return -EINVAL;
1500
1501 size = memparse(p + 1, &p);
1502
1503 if (!size)
1504 return -EINVAL;
1505
1506 paddr = 0;
1507
1508 if (*p == '@') {
1509 paddr = simple_strtoul(p + 1, &p, 16);
1510
1511 if (!paddr)
1512 return -EINVAL;
1513
1514 }
1515
1516 WARN_ONCE(paddr,
1517 "reserving memory at predefined address not supported\n");
1518
1519 paddrs[fbnum] = paddr;
1520 sizes[fbnum] = size;
1521
1522 if (*p == 0)
1523 break;
1524
1525 if (*p != ',')
1526 return -EINVAL;
1527
1528 ++p;
1529
1530 start = p;
1531 }
1532
1533 return 0;
1534}
1535
1536static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev)
1537{
1538 int i, r;
1539 unsigned long vram_sizes[10];
1540 unsigned long vram_paddrs[10];
1541
1542 memset(&vram_sizes, 0, sizeof(vram_sizes));
1543 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1544
1545 if (def_vram && omapfb_parse_vram_param(def_vram, 10,
1546 vram_sizes, vram_paddrs)) {
1547 dev_err(fbdev->dev, "failed to parse vram parameter\n");
1548
1549 memset(&vram_sizes, 0, sizeof(vram_sizes));
1550 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1551 }
1552
1553 for (i = 0; i < fbdev->num_fbs; i++) {
1554 /* allocate memory automatically only for fb0, or if
1555 * excplicitly defined with vram or plat data option */
1556 if (i == 0 || vram_sizes[i] != 0) {
1557 r = omapfb_alloc_fbmem_display(fbdev->fbs[i],
1558 vram_sizes[i], vram_paddrs[i]);
1559
1560 if (r)
1561 return r;
1562 }
1563 }
1564
1565 for (i = 0; i < fbdev->num_fbs; i++) {
1566 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1567 struct omapfb2_mem_region *rg;
1568 rg = ofbi->region;
1569
1570 DBG("region%d phys %08x virt %p size=%lu\n",
1571 i,
1572 rg->paddr,
1573 rg->vaddr,
1574 rg->size);
1575 }
1576
1577 return 0;
1578}
1579
1580static void omapfb_clear_fb(struct fb_info *fbi)
1581{
1582 const struct fb_fillrect rect = {
1583 .dx = 0,
1584 .dy = 0,
1585 .width = fbi->var.xres_virtual,
1586 .height = fbi->var.yres_virtual,
1587 .color = 0,
1588 .rop = ROP_COPY,
1589 };
1590
1591 cfb_fillrect(fbi, &rect);
1592}
1593
1594int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
1595{
1596 struct omapfb_info *ofbi = FB2OFB(fbi);
1597 struct omapfb2_device *fbdev = ofbi->fbdev;
1598 struct omapfb2_mem_region *rg = ofbi->region;
1599 unsigned long old_size = rg->size;
1600 unsigned long old_paddr = rg->paddr;
1601 int old_type = rg->type;
1602 int r;
1603
1604 if (type != OMAPFB_MEMTYPE_SDRAM)
1605 return -EINVAL;
1606
1607 size = PAGE_ALIGN(size);
1608
1609 if (old_size == size && old_type == type)
1610 return 0;
1611
1612 omapfb_free_fbmem(fbi);
1613
1614 if (size == 0) {
1615 clear_fb_info(fbi);
1616 return 0;
1617 }
1618
1619 r = omapfb_alloc_fbmem(fbi, size, 0);
1620
1621 if (r) {
1622 if (old_size)
1623 omapfb_alloc_fbmem(fbi, old_size, old_paddr);
1624
1625 if (rg->size == 0)
1626 clear_fb_info(fbi);
1627
1628 return r;
1629 }
1630
1631 if (old_size == size)
1632 return 0;
1633
1634 if (old_size == 0) {
1635 DBG("initializing fb %d\n", ofbi->id);
1636 r = omapfb_fb_init(fbdev, fbi);
1637 if (r) {
1638 DBG("omapfb_fb_init failed\n");
1639 goto err;
1640 }
1641 r = omapfb_apply_changes(fbi, 1);
1642 if (r) {
1643 DBG("omapfb_apply_changes failed\n");
1644 goto err;
1645 }
1646 } else {
1647 struct fb_var_screeninfo new_var;
1648 memcpy(&new_var, &fbi->var, sizeof(new_var));
1649 r = check_fb_var(fbi, &new_var);
1650 if (r)
1651 goto err;
1652 memcpy(&fbi->var, &new_var, sizeof(fbi->var));
1653 set_fb_fix(fbi);
1654 r = setup_vrfb_rotation(fbi);
1655 if (r)
1656 goto err;
1657 }
1658
1659 omapfb_clear_fb(fbi);
1660
1661 return 0;
1662err:
1663 omapfb_free_fbmem(fbi);
1664 clear_fb_info(fbi);
1665 return r;
1666}
1667
1668static void omapfb_auto_update_work(struct work_struct *work)
1669{
1670 struct omap_dss_device *dssdev;
1671 struct omap_dss_driver *dssdrv;
1672 struct omapfb_display_data *d;
1673 u16 w, h;
1674 unsigned int freq;
1675 struct omapfb2_device *fbdev;
1676
1677 d = container_of(work, struct omapfb_display_data,
1678 auto_update_work.work);
1679
1680 dssdev = d->dssdev;
1681 dssdrv = dssdev->driver;
1682 fbdev = d->fbdev;
1683
1684 if (!dssdrv || !dssdrv->update)
1685 return;
1686
1687 if (dssdrv->sync)
1688 dssdrv->sync(dssdev);
1689
1690 dssdrv->get_resolution(dssdev, &w, &h);
1691 dssdrv->update(dssdev, 0, 0, w, h);
1692
1693 freq = auto_update_freq;
1694 if (freq == 0)
1695 freq = 20;
1696 queue_delayed_work(fbdev->auto_update_wq,
1697 &d->auto_update_work, HZ / freq);
1698}
1699
1700void omapfb_start_auto_update(struct omapfb2_device *fbdev,
1701 struct omap_dss_device *display)
1702{
1703 struct omapfb_display_data *d;
1704
1705 if (fbdev->auto_update_wq == NULL) {
1706 struct workqueue_struct *wq;
1707
1708 wq = create_singlethread_workqueue("omapfb_auto_update");
1709
1710 if (wq == NULL) {
1711 dev_err(fbdev->dev, "Failed to create workqueue for "
1712 "auto-update\n");
1713 return;
1714 }
1715
1716 fbdev->auto_update_wq = wq;
1717 }
1718
1719 d = get_display_data(fbdev, display);
1720
1721 INIT_DELAYED_WORK(&d->auto_update_work, omapfb_auto_update_work);
1722
1723 d->auto_update_work_enabled = true;
1724
1725 omapfb_auto_update_work(&d->auto_update_work.work);
1726}
1727
1728void omapfb_stop_auto_update(struct omapfb2_device *fbdev,
1729 struct omap_dss_device *display)
1730{
1731 struct omapfb_display_data *d;
1732
1733 d = get_display_data(fbdev, display);
1734
1735 cancel_delayed_work_sync(&d->auto_update_work);
1736
1737 d->auto_update_work_enabled = false;
1738}
1739
1740/* initialize fb_info, var, fix to something sane based on the display */
1741static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
1742{
1743 struct fb_var_screeninfo *var = &fbi->var;
1744 struct omap_dss_device *display = fb2display(fbi);
1745 struct omapfb_info *ofbi = FB2OFB(fbi);
1746 int r = 0;
1747
1748 fbi->fbops = &omapfb_ops;
1749 fbi->flags = FBINFO_FLAG_DEFAULT;
1750 fbi->pseudo_palette = fbdev->pseudo_palette;
1751
1752 if (ofbi->region->size == 0) {
1753 clear_fb_info(fbi);
1754 return 0;
1755 }
1756
1757 var->nonstd = 0;
1758 var->bits_per_pixel = 0;
1759
1760 var->rotate = def_rotate;
1761
1762 if (display) {
1763 u16 w, h;
1764 int rotation = (var->rotate + ofbi->rotation[0]) % 4;
1765
1766 display->driver->get_resolution(display, &w, &h);
1767
1768 if (rotation == FB_ROTATE_CW ||
1769 rotation == FB_ROTATE_CCW) {
1770 var->xres = h;
1771 var->yres = w;
1772 } else {
1773 var->xres = w;
1774 var->yres = h;
1775 }
1776
1777 var->xres_virtual = var->xres;
1778 var->yres_virtual = var->yres;
1779
1780 if (!var->bits_per_pixel) {
1781 switch (omapfb_get_recommended_bpp(fbdev, display)) {
1782 case 16:
1783 var->bits_per_pixel = 16;
1784 break;
1785 case 24:
1786 var->bits_per_pixel = 32;
1787 break;
1788 default:
1789 dev_err(fbdev->dev, "illegal display "
1790 "bpp\n");
1791 return -EINVAL;
1792 }
1793 }
1794 } else {
1795 /* if there's no display, let's just guess some basic values */
1796 var->xres = 320;
1797 var->yres = 240;
1798 var->xres_virtual = var->xres;
1799 var->yres_virtual = var->yres;
1800 if (!var->bits_per_pixel)
1801 var->bits_per_pixel = 16;
1802 }
1803
1804 r = check_fb_var(fbi, var);
1805 if (r)
1806 goto err;
1807
1808 set_fb_fix(fbi);
1809 r = setup_vrfb_rotation(fbi);
1810 if (r)
1811 goto err;
1812
1813 r = fb_alloc_cmap(&fbi->cmap, 256, 0);
1814 if (r)
1815 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1816
1817err:
1818 return r;
1819}
1820
1821static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
1822{
1823 fb_dealloc_cmap(&fbi->cmap);
1824}
1825
1826
1827static void omapfb_free_resources(struct omapfb2_device *fbdev)
1828{
1829 int i;
1830
1831 DBG("free_resources\n");
1832
1833 if (fbdev == NULL)
1834 return;
1835
1836 for (i = 0; i < fbdev->num_fbs; i++) {
1837 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1838 int j;
1839
1840 for (j = 0; j < ofbi->num_overlays; j++) {
1841 struct omap_overlay *ovl = ofbi->overlays[j];
1842 ovl->disable(ovl);
1843 }
1844 }
1845
1846 for (i = 0; i < fbdev->num_fbs; i++)
1847 unregister_framebuffer(fbdev->fbs[i]);
1848
1849 /* free the reserved fbmem */
1850 omapfb_free_all_fbmem(fbdev);
1851
1852 for (i = 0; i < fbdev->num_fbs; i++) {
1853 fbinfo_cleanup(fbdev, fbdev->fbs[i]);
1854 framebuffer_release(fbdev->fbs[i]);
1855 }
1856
1857 for (i = 0; i < fbdev->num_displays; i++) {
1858 struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
1859
1860 if (fbdev->displays[i].auto_update_work_enabled)
1861 omapfb_stop_auto_update(fbdev, dssdev);
1862
1863 if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)
1864 dssdev->driver->disable(dssdev);
1865
1866 dssdev->driver->disconnect(dssdev);
1867
1868 omap_dss_put_device(dssdev);
1869 }
1870
1871 if (fbdev->auto_update_wq != NULL) {
1872 flush_workqueue(fbdev->auto_update_wq);
1873 destroy_workqueue(fbdev->auto_update_wq);
1874 fbdev->auto_update_wq = NULL;
1875 }
1876
1877 dev_set_drvdata(fbdev->dev, NULL);
1878}
1879
1880static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
1881{
1882 int r, i;
1883
1884 fbdev->num_fbs = 0;
1885
1886 DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS);
1887
1888 /* allocate fb_infos */
1889 for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) {
1890 struct fb_info *fbi;
1891 struct omapfb_info *ofbi;
1892
1893 fbi = framebuffer_alloc(sizeof(struct omapfb_info),
1894 fbdev->dev);
1895
1896 if (fbi == NULL) {
1897 dev_err(fbdev->dev,
1898 "unable to allocate memory for plane info\n");
1899 return -ENOMEM;
1900 }
1901
1902 clear_fb_info(fbi);
1903
1904 fbdev->fbs[i] = fbi;
1905
1906 ofbi = FB2OFB(fbi);
1907 ofbi->fbdev = fbdev;
1908 ofbi->id = i;
1909
1910 ofbi->region = &fbdev->regions[i];
1911 ofbi->region->id = i;
1912 init_rwsem(&ofbi->region->lock);
1913
1914 /* assign these early, so that fb alloc can use them */
1915 ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
1916 OMAP_DSS_ROT_DMA;
1917 ofbi->mirror = def_mirror;
1918
1919 fbdev->num_fbs++;
1920 }
1921
1922 DBG("fb_infos allocated\n");
1923
1924 /* assign overlays for the fbs */
1925 for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) {
1926 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1927
1928 ofbi->overlays[0] = fbdev->overlays[i];
1929 ofbi->num_overlays = 1;
1930 }
1931
1932 /* allocate fb memories */
1933 r = omapfb_allocate_all_fbs(fbdev);
1934 if (r) {
1935 dev_err(fbdev->dev, "failed to allocate fbmem\n");
1936 return r;
1937 }
1938
1939 DBG("fbmems allocated\n");
1940
1941 /* setup fb_infos */
1942 for (i = 0; i < fbdev->num_fbs; i++) {
1943 struct fb_info *fbi = fbdev->fbs[i];
1944 struct omapfb_info *ofbi = FB2OFB(fbi);
1945
1946 omapfb_get_mem_region(ofbi->region);
1947 r = omapfb_fb_init(fbdev, fbi);
1948 omapfb_put_mem_region(ofbi->region);
1949
1950 if (r) {
1951 dev_err(fbdev->dev, "failed to setup fb_info\n");
1952 return r;
1953 }
1954 }
1955
1956 for (i = 0; i < fbdev->num_fbs; i++) {
1957 struct fb_info *fbi = fbdev->fbs[i];
1958 struct omapfb_info *ofbi = FB2OFB(fbi);
1959
1960 if (ofbi->region->size == 0)
1961 continue;
1962
1963 omapfb_clear_fb(fbi);
1964 }
1965
1966 DBG("fb_infos initialized\n");
1967
1968 for (i = 0; i < fbdev->num_fbs; i++) {
1969 r = register_framebuffer(fbdev->fbs[i]);
1970 if (r != 0) {
1971 dev_err(fbdev->dev,
1972 "registering framebuffer %d failed\n", i);
1973 return r;
1974 }
1975 }
1976
1977 DBG("framebuffers registered\n");
1978
1979 for (i = 0; i < fbdev->num_fbs; i++) {
1980 struct fb_info *fbi = fbdev->fbs[i];
1981 struct omapfb_info *ofbi = FB2OFB(fbi);
1982
1983 omapfb_get_mem_region(ofbi->region);
1984 r = omapfb_apply_changes(fbi, 1);
1985 omapfb_put_mem_region(ofbi->region);
1986
1987 if (r) {
1988 dev_err(fbdev->dev, "failed to change mode\n");
1989 return r;
1990 }
1991 }
1992
1993 /* Enable fb0 */
1994 if (fbdev->num_fbs > 0) {
1995 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]);
1996
1997 if (ofbi->num_overlays > 0) {
1998 struct omap_overlay *ovl = ofbi->overlays[0];
1999
2000 ovl->manager->apply(ovl->manager);
2001
2002 r = omapfb_overlay_enable(ovl, 1);
2003
2004 if (r) {
2005 dev_err(fbdev->dev,
2006 "failed to enable overlay\n");
2007 return r;
2008 }
2009 }
2010 }
2011
2012 DBG("create_framebuffers done\n");
2013
2014 return 0;
2015}
2016
2017static int omapfb_mode_to_timings(const char *mode_str,
2018 struct omap_dss_device *display,
2019 struct omap_video_timings *timings, u8 *bpp)
2020{
2021 struct fb_info *fbi;
2022 struct fb_var_screeninfo *var;
2023 struct fb_ops *fbops;
2024 int r;
2025
2026#ifdef CONFIG_OMAP2_DSS_VENC
2027 if (strcmp(mode_str, "pal") == 0) {
2028 *timings = omap_dss_pal_timings;
2029 *bpp = 24;
2030 return 0;
2031 } else if (strcmp(mode_str, "ntsc") == 0) {
2032 *timings = omap_dss_ntsc_timings;
2033 *bpp = 24;
2034 return 0;
2035 }
2036#endif
2037
2038 /* this is quite a hack, but I wanted to use the modedb and for
2039 * that we need fb_info and var, so we create dummy ones */
2040
2041 *bpp = 0;
2042 fbi = NULL;
2043 var = NULL;
2044 fbops = NULL;
2045
2046 fbi = kzalloc(sizeof(*fbi), GFP_KERNEL);
2047 if (fbi == NULL) {
2048 r = -ENOMEM;
2049 goto err;
2050 }
2051
2052 var = kzalloc(sizeof(*var), GFP_KERNEL);
2053 if (var == NULL) {
2054 r = -ENOMEM;
2055 goto err;
2056 }
2057
2058 fbops = kzalloc(sizeof(*fbops), GFP_KERNEL);
2059 if (fbops == NULL) {
2060 r = -ENOMEM;
2061 goto err;
2062 }
2063
2064 fbi->fbops = fbops;
2065
2066 r = fb_find_mode(var, fbi, mode_str, NULL, 0, NULL, 24);
2067 if (r == 0) {
2068 r = -EINVAL;
2069 goto err;
2070 }
2071
2072 if (display->driver->get_timings) {
2073 display->driver->get_timings(display, timings);
2074 } else {
2075 timings->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
2076 timings->de_level = OMAPDSS_SIG_ACTIVE_HIGH;
2077 timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES;
2078 }
2079
2080 timings->pixelclock = PICOS2KHZ(var->pixclock) * 1000;
2081 timings->hbp = var->left_margin;
2082 timings->hfp = var->right_margin;
2083 timings->vbp = var->upper_margin;
2084 timings->vfp = var->lower_margin;
2085 timings->hsw = var->hsync_len;
2086 timings->vsw = var->vsync_len;
2087 timings->x_res = var->xres;
2088 timings->y_res = var->yres;
2089 timings->hsync_level = var->sync & FB_SYNC_HOR_HIGH_ACT ?
2090 OMAPDSS_SIG_ACTIVE_HIGH :
2091 OMAPDSS_SIG_ACTIVE_LOW;
2092 timings->vsync_level = var->sync & FB_SYNC_VERT_HIGH_ACT ?
2093 OMAPDSS_SIG_ACTIVE_HIGH :
2094 OMAPDSS_SIG_ACTIVE_LOW;
2095 timings->interlace = var->vmode & FB_VMODE_INTERLACED;
2096
2097 switch (var->bits_per_pixel) {
2098 case 16:
2099 *bpp = 16;
2100 break;
2101 case 24:
2102 case 32:
2103 default:
2104 *bpp = 24;
2105 break;
2106 }
2107
2108 r = 0;
2109
2110err:
2111 kfree(fbi);
2112 kfree(var);
2113 kfree(fbops);
2114
2115 return r;
2116}
2117
2118static int omapfb_set_def_mode(struct omapfb2_device *fbdev,
2119 struct omap_dss_device *display, char *mode_str)
2120{
2121 int r;
2122 u8 bpp;
2123 struct omap_video_timings timings, temp_timings;
2124 struct omapfb_display_data *d;
2125
2126 r = omapfb_mode_to_timings(mode_str, display, &timings, &bpp);
2127 if (r)
2128 return r;
2129
2130 d = get_display_data(fbdev, display);
2131 d->bpp_override = bpp;
2132
2133 if (display->driver->check_timings) {
2134 r = display->driver->check_timings(display, &timings);
2135 if (r)
2136 return r;
2137 } else {
2138 /* If check_timings is not present compare xres and yres */
2139 if (display->driver->get_timings) {
2140 display->driver->get_timings(display, &temp_timings);
2141
2142 if (temp_timings.x_res != timings.x_res ||
2143 temp_timings.y_res != timings.y_res)
2144 return -EINVAL;
2145 }
2146 }
2147
2148 if (display->driver->set_timings)
2149 display->driver->set_timings(display, &timings);
2150
2151 return 0;
2152}
2153
2154static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev,
2155 struct omap_dss_device *dssdev)
2156{
2157 struct omapfb_display_data *d;
2158
2159 BUG_ON(dssdev->driver->get_recommended_bpp == NULL);
2160
2161 d = get_display_data(fbdev, dssdev);
2162
2163 if (d->bpp_override != 0)
2164 return d->bpp_override;
2165
2166 return dssdev->driver->get_recommended_bpp(dssdev);
2167}
2168
2169static int omapfb_parse_def_modes(struct omapfb2_device *fbdev)
2170{
2171 char *str, *options, *this_opt;
2172 int r = 0;
2173
2174 str = kstrdup(def_mode, GFP_KERNEL);
2175 if (!str)
2176 return -ENOMEM;
2177 options = str;
2178
2179 while (!r && (this_opt = strsep(&options, ",")) != NULL) {
2180 char *p, *display_str, *mode_str;
2181 struct omap_dss_device *display;
2182 int i;
2183
2184 p = strchr(this_opt, ':');
2185 if (!p) {
2186 r = -EINVAL;
2187 break;
2188 }
2189
2190 *p = 0;
2191 display_str = this_opt;
2192 mode_str = p + 1;
2193
2194 display = NULL;
2195 for (i = 0; i < fbdev->num_displays; ++i) {
2196 if (strcmp(fbdev->displays[i].dssdev->name,
2197 display_str) == 0) {
2198 display = fbdev->displays[i].dssdev;
2199 break;
2200 }
2201 }
2202
2203 if (!display) {
2204 r = -EINVAL;
2205 break;
2206 }
2207
2208 r = omapfb_set_def_mode(fbdev, display, mode_str);
2209 if (r)
2210 break;
2211 }
2212
2213 kfree(str);
2214
2215 return r;
2216}
2217
2218static void fb_videomode_to_omap_timings(struct fb_videomode *m,
2219 struct omap_dss_device *display,
2220 struct omap_video_timings *t)
2221{
2222 if (display->driver->get_timings) {
2223 display->driver->get_timings(display, t);
2224 } else {
2225 t->data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE;
2226 t->de_level = OMAPDSS_SIG_ACTIVE_HIGH;
2227 t->sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES;
2228 }
2229
2230 t->x_res = m->xres;
2231 t->y_res = m->yres;
2232 t->pixelclock = PICOS2KHZ(m->pixclock) * 1000;
2233 t->hsw = m->hsync_len;
2234 t->hfp = m->right_margin;
2235 t->hbp = m->left_margin;
2236 t->vsw = m->vsync_len;
2237 t->vfp = m->lower_margin;
2238 t->vbp = m->upper_margin;
2239 t->hsync_level = m->sync & FB_SYNC_HOR_HIGH_ACT ?
2240 OMAPDSS_SIG_ACTIVE_HIGH :
2241 OMAPDSS_SIG_ACTIVE_LOW;
2242 t->vsync_level = m->sync & FB_SYNC_VERT_HIGH_ACT ?
2243 OMAPDSS_SIG_ACTIVE_HIGH :
2244 OMAPDSS_SIG_ACTIVE_LOW;
2245 t->interlace = m->vmode & FB_VMODE_INTERLACED;
2246}
2247
2248static int omapfb_find_best_mode(struct omap_dss_device *display,
2249 struct omap_video_timings *timings)
2250{
2251 struct fb_monspecs *specs;
2252 u8 *edid;
2253 int r, i, best_idx, len;
2254
2255 if (!display->driver->read_edid)
2256 return -ENODEV;
2257
2258 len = 0x80 * 2;
2259 edid = kmalloc(len, GFP_KERNEL);
2260 if (edid == NULL)
2261 return -ENOMEM;
2262
2263 r = display->driver->read_edid(display, edid, len);
2264 if (r < 0)
2265 goto err1;
2266
2267 specs = kzalloc(sizeof(*specs), GFP_KERNEL);
2268 if (specs == NULL) {
2269 r = -ENOMEM;
2270 goto err1;
2271 }
2272
2273 fb_edid_to_monspecs(edid, specs);
2274
2275 best_idx = -1;
2276
2277 for (i = 0; i < specs->modedb_len; ++i) {
2278 struct fb_videomode *m;
2279 struct omap_video_timings t;
2280
2281 m = &specs->modedb[i];
2282
2283 if (m->pixclock == 0)
2284 continue;
2285
2286 /* skip repeated pixel modes */
2287 if (m->xres == 2880 || m->xres == 1440)
2288 continue;
2289
2290 if (m->vmode & FB_VMODE_INTERLACED ||
2291 m->vmode & FB_VMODE_DOUBLE)
2292 continue;
2293
2294 fb_videomode_to_omap_timings(m, display, &t);
2295
2296 r = display->driver->check_timings(display, &t);
2297 if (r == 0) {
2298 best_idx = i;
2299 break;
2300 }
2301 }
2302
2303 if (best_idx == -1) {
2304 r = -ENOENT;
2305 goto err2;
2306 }
2307
2308 fb_videomode_to_omap_timings(&specs->modedb[best_idx], display,
2309 timings);
2310
2311 r = 0;
2312
2313err2:
2314 fb_destroy_modedb(specs->modedb);
2315 kfree(specs);
2316err1:
2317 kfree(edid);
2318
2319 return r;
2320}
2321
2322static int omapfb_init_display(struct omapfb2_device *fbdev,
2323 struct omap_dss_device *dssdev)
2324{
2325 struct omap_dss_driver *dssdrv = dssdev->driver;
2326 struct omapfb_display_data *d;
2327 int r;
2328
2329 r = dssdrv->enable(dssdev);
2330 if (r) {
2331 dev_warn(fbdev->dev, "Failed to enable display '%s'\n",
2332 dssdev->name);
2333 return r;
2334 }
2335
2336 d = get_display_data(fbdev, dssdev);
2337
2338 d->fbdev = fbdev;
2339
2340 if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
2341 u16 w, h;
2342
2343 if (auto_update) {
2344 omapfb_start_auto_update(fbdev, dssdev);
2345 d->update_mode = OMAPFB_AUTO_UPDATE;
2346 } else {
2347 d->update_mode = OMAPFB_MANUAL_UPDATE;
2348 }
2349
2350 if (dssdrv->enable_te) {
2351 r = dssdrv->enable_te(dssdev, 1);
2352 if (r) {
2353 dev_err(fbdev->dev, "Failed to set TE\n");
2354 return r;
2355 }
2356 }
2357
2358 dssdrv->get_resolution(dssdev, &w, &h);
2359 r = dssdrv->update(dssdev, 0, 0, w, h);
2360 if (r) {
2361 dev_err(fbdev->dev,
2362 "Failed to update display\n");
2363 return r;
2364 }
2365 } else {
2366 d->update_mode = OMAPFB_AUTO_UPDATE;
2367 }
2368
2369 return 0;
2370}
2371
2372static int omapfb_init_connections(struct omapfb2_device *fbdev,
2373 struct omap_dss_device *def_dssdev)
2374{
2375 int i, r;
2376 struct omap_overlay_manager *mgr;
2377
2378 r = def_dssdev->driver->connect(def_dssdev);
2379 if (r) {
2380 dev_err(fbdev->dev, "failed to connect default display\n");
2381 return r;
2382 }
2383
2384 for (i = 0; i < fbdev->num_displays; ++i) {
2385 struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
2386
2387 if (dssdev == def_dssdev)
2388 continue;
2389
2390 /*
2391 * We don't care if the connect succeeds or not. We just want to
2392 * connect as many displays as possible.
2393 */
2394 dssdev->driver->connect(dssdev);
2395 }
2396
2397 mgr = omapdss_find_mgr_from_display(def_dssdev);
2398
2399 if (!mgr) {
2400 dev_err(fbdev->dev, "no ovl manager for the default display\n");
2401 return -EINVAL;
2402 }
2403
2404 for (i = 0; i < fbdev->num_overlays; i++) {
2405 struct omap_overlay *ovl = fbdev->overlays[i];
2406
2407 if (ovl->manager)
2408 ovl->unset_manager(ovl);
2409
2410 r = ovl->set_manager(ovl, mgr);
2411 if (r)
2412 dev_warn(fbdev->dev,
2413 "failed to connect overlay %s to manager %s\n",
2414 ovl->name, mgr->name);
2415 }
2416
2417 return 0;
2418}
2419
2420static struct omap_dss_device *
2421omapfb_find_default_display(struct omapfb2_device *fbdev)
2422{
2423 const char *def_name;
2424 int i;
2425
2426 /*
2427 * Search with the display name from the user or the board file,
2428 * comparing to display names and aliases
2429 */
2430
2431 def_name = omapdss_get_default_display_name();
2432
2433 if (def_name) {
2434 for (i = 0; i < fbdev->num_displays; ++i) {
2435 struct omap_dss_device *dssdev;
2436
2437 dssdev = fbdev->displays[i].dssdev;
2438
2439 if (dssdev->name && strcmp(def_name, dssdev->name) == 0)
2440 return dssdev;
2441
2442 if (strcmp(def_name, dssdev->alias) == 0)
2443 return dssdev;
2444 }
2445
2446 /* def_name given but not found */
2447 return NULL;
2448 }
2449
2450 /* then look for DT alias display0 */
2451 for (i = 0; i < fbdev->num_displays; ++i) {
2452 struct omap_dss_device *dssdev;
2453 int id;
2454
2455 dssdev = fbdev->displays[i].dssdev;
2456
2457 if (dssdev->dev->of_node == NULL)
2458 continue;
2459
2460 id = of_alias_get_id(dssdev->dev->of_node, "display");
2461 if (id == 0)
2462 return dssdev;
2463 }
2464
2465 /* return the first display we have in the list */
2466 return fbdev->displays[0].dssdev;
2467}
2468
2469static int omapfb_probe(struct platform_device *pdev)
2470{
2471 struct omapfb2_device *fbdev = NULL;
2472 int r = 0;
2473 int i;
2474 struct omap_dss_device *def_display;
2475 struct omap_dss_device *dssdev;
2476
2477 DBG("omapfb_probe\n");
2478
2479 if (omapdss_is_initialized() == false)
2480 return -EPROBE_DEFER;
2481
2482 if (pdev->num_resources != 0) {
2483 dev_err(&pdev->dev, "probed for an unknown device\n");
2484 r = -ENODEV;
2485 goto err0;
2486 }
2487
2488 fbdev = devm_kzalloc(&pdev->dev, sizeof(struct omapfb2_device),
2489 GFP_KERNEL);
2490 if (fbdev == NULL) {
2491 r = -ENOMEM;
2492 goto err0;
2493 }
2494
2495 if (def_vrfb && !omap_vrfb_supported()) {
2496 def_vrfb = 0;
2497 dev_warn(&pdev->dev, "VRFB is not supported on this hardware, "
2498 "ignoring the module parameter vrfb=y\n");
2499 }
2500
2501 r = omapdss_compat_init();
2502 if (r)
2503 goto err0;
2504
2505 mutex_init(&fbdev->mtx);
2506
2507 fbdev->dev = &pdev->dev;
2508 platform_set_drvdata(pdev, fbdev);
2509
2510 fbdev->num_displays = 0;
2511 dssdev = NULL;
2512 for_each_dss_dev(dssdev) {
2513 struct omapfb_display_data *d;
2514
2515 omap_dss_get_device(dssdev);
2516
2517 if (!dssdev->driver) {
2518 dev_warn(&pdev->dev, "no driver for display: %s\n",
2519 dssdev->name);
2520 omap_dss_put_device(dssdev);
2521 continue;
2522 }
2523
2524 d = &fbdev->displays[fbdev->num_displays++];
2525 d->dssdev = dssdev;
2526 if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
2527 d->update_mode = OMAPFB_MANUAL_UPDATE;
2528 else
2529 d->update_mode = OMAPFB_AUTO_UPDATE;
2530 }
2531
2532 if (fbdev->num_displays == 0) {
2533 dev_err(&pdev->dev, "no displays\n");
2534 r = -EPROBE_DEFER;
2535 goto cleanup;
2536 }
2537
2538 fbdev->num_overlays = omap_dss_get_num_overlays();
2539 for (i = 0; i < fbdev->num_overlays; i++)
2540 fbdev->overlays[i] = omap_dss_get_overlay(i);
2541
2542 fbdev->num_managers = omap_dss_get_num_overlay_managers();
2543 for (i = 0; i < fbdev->num_managers; i++)
2544 fbdev->managers[i] = omap_dss_get_overlay_manager(i);
2545
2546 def_display = omapfb_find_default_display(fbdev);
2547 if (def_display == NULL) {
2548 dev_err(fbdev->dev, "failed to find default display\n");
2549 r = -EPROBE_DEFER;
2550 goto cleanup;
2551 }
2552
2553 r = omapfb_init_connections(fbdev, def_display);
2554 if (r) {
2555 dev_err(fbdev->dev, "failed to init overlay connections\n");
2556 goto cleanup;
2557 }
2558
2559 if (def_mode && strlen(def_mode) > 0) {
2560 if (omapfb_parse_def_modes(fbdev))
2561 dev_warn(&pdev->dev, "cannot parse default modes\n");
2562 } else if (def_display && def_display->driver->set_timings &&
2563 def_display->driver->check_timings) {
2564 struct omap_video_timings t;
2565
2566 r = omapfb_find_best_mode(def_display, &t);
2567
2568 if (r == 0)
2569 def_display->driver->set_timings(def_display, &t);
2570 }
2571
2572 r = omapfb_create_framebuffers(fbdev);
2573 if (r)
2574 goto cleanup;
2575
2576 for (i = 0; i < fbdev->num_managers; i++) {
2577 struct omap_overlay_manager *mgr;
2578 mgr = fbdev->managers[i];
2579 r = mgr->apply(mgr);
2580 if (r)
2581 dev_warn(fbdev->dev, "failed to apply dispc config\n");
2582 }
2583
2584 DBG("mgr->apply'ed\n");
2585
2586 if (def_display) {
2587 r = omapfb_init_display(fbdev, def_display);
2588 if (r) {
2589 dev_err(fbdev->dev,
2590 "failed to initialize default "
2591 "display\n");
2592 goto cleanup;
2593 }
2594 }
2595
2596 DBG("create sysfs for fbs\n");
2597 r = omapfb_create_sysfs(fbdev);
2598 if (r) {
2599 dev_err(fbdev->dev, "failed to create sysfs entries\n");
2600 goto cleanup;
2601 }
2602
2603 if (def_display) {
2604 u16 w, h;
2605
2606 def_display->driver->get_resolution(def_display, &w, &h);
2607
2608 dev_info(fbdev->dev, "using display '%s' mode %dx%d\n",
2609 def_display->name, w, h);
2610 }
2611
2612 return 0;
2613
2614cleanup:
2615 omapfb_free_resources(fbdev);
2616 omapdss_compat_uninit();
2617err0:
2618 dev_err(&pdev->dev, "failed to setup omapfb\n");
2619 return r;
2620}
2621
2622static int __exit omapfb_remove(struct platform_device *pdev)
2623{
2624 struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
2625
2626 /* FIXME: wait till completion of pending events */
2627
2628 omapfb_remove_sysfs(fbdev);
2629
2630 omapfb_free_resources(fbdev);
2631
2632 omapdss_compat_uninit();
2633
2634 return 0;
2635}
2636
2637static struct platform_driver omapfb_driver = {
2638 .probe = omapfb_probe,
2639 .remove = __exit_p(omapfb_remove),
2640 .driver = {
2641 .name = "omapfb",
2642 .owner = THIS_MODULE,
2643 },
2644};
2645
2646module_param_named(mode, def_mode, charp, 0);
2647module_param_named(vram, def_vram, charp, 0);
2648module_param_named(rotate, def_rotate, int, 0);
2649module_param_named(vrfb, def_vrfb, bool, 0);
2650module_param_named(mirror, def_mirror, bool, 0);
2651
2652module_platform_driver(omapfb_driver);
2653
2654MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
2655MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
2656MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c
deleted file mode 100644
index 18fa9e1d0033..000000000000
--- a/drivers/video/omap2/omapfb/omapfb-sysfs.c
+++ /dev/null
@@ -1,605 +0,0 @@
1/*
2 * linux/drivers/video/omap2/omapfb-sysfs.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/fb.h>
24#include <linux/sysfs.h>
25#include <linux/device.h>
26#include <linux/uaccess.h>
27#include <linux/platform_device.h>
28#include <linux/kernel.h>
29#include <linux/mm.h>
30#include <linux/omapfb.h>
31
32#include <video/omapdss.h>
33#include <video/omapvrfb.h>
34
35#include "omapfb.h"
36
37static ssize_t show_rotate_type(struct device *dev,
38 struct device_attribute *attr, char *buf)
39{
40 struct fb_info *fbi = dev_get_drvdata(dev);
41 struct omapfb_info *ofbi = FB2OFB(fbi);
42
43 return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->rotation_type);
44}
45
46static ssize_t store_rotate_type(struct device *dev,
47 struct device_attribute *attr,
48 const char *buf, size_t count)
49{
50 struct fb_info *fbi = dev_get_drvdata(dev);
51 struct omapfb_info *ofbi = FB2OFB(fbi);
52 struct omapfb2_mem_region *rg;
53 int rot_type;
54 int r;
55
56 r = kstrtoint(buf, 0, &rot_type);
57 if (r)
58 return r;
59
60 if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB)
61 return -EINVAL;
62
63 if (!lock_fb_info(fbi))
64 return -ENODEV;
65
66 r = 0;
67 if (rot_type == ofbi->rotation_type)
68 goto out;
69
70 rg = omapfb_get_mem_region(ofbi->region);
71
72 if (rg->size) {
73 r = -EBUSY;
74 goto put_region;
75 }
76
77 ofbi->rotation_type = rot_type;
78
79 /*
80 * Since the VRAM for this FB is not allocated at the moment we don't
81 * need to do any further parameter checking at this point.
82 */
83put_region:
84 omapfb_put_mem_region(rg);
85out:
86 unlock_fb_info(fbi);
87
88 return r ? r : count;
89}
90
91
92static ssize_t show_mirror(struct device *dev,
93 struct device_attribute *attr, char *buf)
94{
95 struct fb_info *fbi = dev_get_drvdata(dev);
96 struct omapfb_info *ofbi = FB2OFB(fbi);
97
98 return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->mirror);
99}
100
101static ssize_t store_mirror(struct device *dev,
102 struct device_attribute *attr,
103 const char *buf, size_t count)
104{
105 struct fb_info *fbi = dev_get_drvdata(dev);
106 struct omapfb_info *ofbi = FB2OFB(fbi);
107 bool mirror;
108 int r;
109 struct fb_var_screeninfo new_var;
110
111 r = strtobool(buf, &mirror);
112 if (r)
113 return r;
114
115 if (!lock_fb_info(fbi))
116 return -ENODEV;
117
118 ofbi->mirror = mirror;
119
120 omapfb_get_mem_region(ofbi->region);
121
122 memcpy(&new_var, &fbi->var, sizeof(new_var));
123 r = check_fb_var(fbi, &new_var);
124 if (r)
125 goto out;
126 memcpy(&fbi->var, &new_var, sizeof(fbi->var));
127
128 set_fb_fix(fbi);
129
130 r = omapfb_apply_changes(fbi, 0);
131 if (r)
132 goto out;
133
134 r = count;
135out:
136 omapfb_put_mem_region(ofbi->region);
137
138 unlock_fb_info(fbi);
139
140 return r;
141}
142
143static ssize_t show_overlays(struct device *dev,
144 struct device_attribute *attr, char *buf)
145{
146 struct fb_info *fbi = dev_get_drvdata(dev);
147 struct omapfb_info *ofbi = FB2OFB(fbi);
148 struct omapfb2_device *fbdev = ofbi->fbdev;
149 ssize_t l = 0;
150 int t;
151
152 if (!lock_fb_info(fbi))
153 return -ENODEV;
154 omapfb_lock(fbdev);
155
156 for (t = 0; t < ofbi->num_overlays; t++) {
157 struct omap_overlay *ovl = ofbi->overlays[t];
158 int ovlnum;
159
160 for (ovlnum = 0; ovlnum < fbdev->num_overlays; ++ovlnum)
161 if (ovl == fbdev->overlays[ovlnum])
162 break;
163
164 l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
165 t == 0 ? "" : ",", ovlnum);
166 }
167
168 l += snprintf(buf + l, PAGE_SIZE - l, "\n");
169
170 omapfb_unlock(fbdev);
171 unlock_fb_info(fbi);
172
173 return l;
174}
175
176static struct omapfb_info *get_overlay_fb(struct omapfb2_device *fbdev,
177 struct omap_overlay *ovl)
178{
179 int i, t;
180
181 for (i = 0; i < fbdev->num_fbs; i++) {
182 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
183
184 for (t = 0; t < ofbi->num_overlays; t++) {
185 if (ofbi->overlays[t] == ovl)
186 return ofbi;
187 }
188 }
189
190 return NULL;
191}
192
193static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
194 const char *buf, size_t count)
195{
196 struct fb_info *fbi = dev_get_drvdata(dev);
197 struct omapfb_info *ofbi = FB2OFB(fbi);
198 struct omapfb2_device *fbdev = ofbi->fbdev;
199 struct omap_overlay *ovls[OMAPFB_MAX_OVL_PER_FB];
200 struct omap_overlay *ovl;
201 int num_ovls, r, i;
202 int len;
203 bool added = false;
204
205 num_ovls = 0;
206
207 len = strlen(buf);
208 if (buf[len - 1] == '\n')
209 len = len - 1;
210
211 if (!lock_fb_info(fbi))
212 return -ENODEV;
213 omapfb_lock(fbdev);
214
215 if (len > 0) {
216 char *p = (char *)buf;
217 int ovlnum;
218
219 while (p < buf + len) {
220 int found;
221 if (num_ovls == OMAPFB_MAX_OVL_PER_FB) {
222 r = -EINVAL;
223 goto out;
224 }
225
226 ovlnum = simple_strtoul(p, &p, 0);
227 if (ovlnum > fbdev->num_overlays) {
228 r = -EINVAL;
229 goto out;
230 }
231
232 found = 0;
233 for (i = 0; i < num_ovls; ++i) {
234 if (ovls[i] == fbdev->overlays[ovlnum]) {
235 found = 1;
236 break;
237 }
238 }
239
240 if (!found)
241 ovls[num_ovls++] = fbdev->overlays[ovlnum];
242
243 p++;
244 }
245 }
246
247 for (i = 0; i < num_ovls; ++i) {
248 struct omapfb_info *ofbi2 = get_overlay_fb(fbdev, ovls[i]);
249 if (ofbi2 && ofbi2 != ofbi) {
250 dev_err(fbdev->dev, "overlay already in use\n");
251 r = -EINVAL;
252 goto out;
253 }
254 }
255
256 /* detach unused overlays */
257 for (i = 0; i < ofbi->num_overlays; ++i) {
258 int t, found;
259
260 ovl = ofbi->overlays[i];
261
262 found = 0;
263
264 for (t = 0; t < num_ovls; ++t) {
265 if (ovl == ovls[t]) {
266 found = 1;
267 break;
268 }
269 }
270
271 if (found)
272 continue;
273
274 DBG("detaching %d\n", ofbi->overlays[i]->id);
275
276 omapfb_get_mem_region(ofbi->region);
277
278 omapfb_overlay_enable(ovl, 0);
279
280 if (ovl->manager)
281 ovl->manager->apply(ovl->manager);
282
283 omapfb_put_mem_region(ofbi->region);
284
285 for (t = i + 1; t < ofbi->num_overlays; t++) {
286 ofbi->rotation[t-1] = ofbi->rotation[t];
287 ofbi->overlays[t-1] = ofbi->overlays[t];
288 }
289
290 ofbi->num_overlays--;
291 i--;
292 }
293
294 for (i = 0; i < num_ovls; ++i) {
295 int t, found;
296
297 ovl = ovls[i];
298
299 found = 0;
300
301 for (t = 0; t < ofbi->num_overlays; ++t) {
302 if (ovl == ofbi->overlays[t]) {
303 found = 1;
304 break;
305 }
306 }
307
308 if (found)
309 continue;
310 ofbi->rotation[ofbi->num_overlays] = 0;
311 ofbi->overlays[ofbi->num_overlays++] = ovl;
312
313 added = true;
314 }
315
316 if (added) {
317 omapfb_get_mem_region(ofbi->region);
318
319 r = omapfb_apply_changes(fbi, 0);
320
321 omapfb_put_mem_region(ofbi->region);
322
323 if (r)
324 goto out;
325 }
326
327 r = count;
328out:
329 omapfb_unlock(fbdev);
330 unlock_fb_info(fbi);
331
332 return r;
333}
334
335static ssize_t show_overlays_rotate(struct device *dev,
336 struct device_attribute *attr, char *buf)
337{
338 struct fb_info *fbi = dev_get_drvdata(dev);
339 struct omapfb_info *ofbi = FB2OFB(fbi);
340 ssize_t l = 0;
341 int t;
342
343 if (!lock_fb_info(fbi))
344 return -ENODEV;
345
346 for (t = 0; t < ofbi->num_overlays; t++) {
347 l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
348 t == 0 ? "" : ",", ofbi->rotation[t]);
349 }
350
351 l += snprintf(buf + l, PAGE_SIZE - l, "\n");
352
353 unlock_fb_info(fbi);
354
355 return l;
356}
357
358static ssize_t store_overlays_rotate(struct device *dev,
359 struct device_attribute *attr, const char *buf, size_t count)
360{
361 struct fb_info *fbi = dev_get_drvdata(dev);
362 struct omapfb_info *ofbi = FB2OFB(fbi);
363 int num_ovls = 0, r, i;
364 int len;
365 bool changed = false;
366 u8 rotation[OMAPFB_MAX_OVL_PER_FB];
367
368 len = strlen(buf);
369 if (buf[len - 1] == '\n')
370 len = len - 1;
371
372 if (!lock_fb_info(fbi))
373 return -ENODEV;
374
375 if (len > 0) {
376 char *p = (char *)buf;
377
378 while (p < buf + len) {
379 int rot;
380
381 if (num_ovls == ofbi->num_overlays) {
382 r = -EINVAL;
383 goto out;
384 }
385
386 rot = simple_strtoul(p, &p, 0);
387 if (rot < 0 || rot > 3) {
388 r = -EINVAL;
389 goto out;
390 }
391
392 if (ofbi->rotation[num_ovls] != rot)
393 changed = true;
394
395 rotation[num_ovls++] = rot;
396
397 p++;
398 }
399 }
400
401 if (num_ovls != ofbi->num_overlays) {
402 r = -EINVAL;
403 goto out;
404 }
405
406 if (changed) {
407 for (i = 0; i < num_ovls; ++i)
408 ofbi->rotation[i] = rotation[i];
409
410 omapfb_get_mem_region(ofbi->region);
411
412 r = omapfb_apply_changes(fbi, 0);
413
414 omapfb_put_mem_region(ofbi->region);
415
416 if (r)
417 goto out;
418
419 /* FIXME error handling? */
420 }
421
422 r = count;
423out:
424 unlock_fb_info(fbi);
425
426 return r;
427}
428
429static ssize_t show_size(struct device *dev,
430 struct device_attribute *attr, char *buf)
431{
432 struct fb_info *fbi = dev_get_drvdata(dev);
433 struct omapfb_info *ofbi = FB2OFB(fbi);
434
435 return snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region->size);
436}
437
438static ssize_t store_size(struct device *dev, struct device_attribute *attr,
439 const char *buf, size_t count)
440{
441 struct fb_info *fbi = dev_get_drvdata(dev);
442 struct omapfb_info *ofbi = FB2OFB(fbi);
443 struct omapfb2_device *fbdev = ofbi->fbdev;
444 struct omap_dss_device *display = fb2display(fbi);
445 struct omapfb2_mem_region *rg;
446 unsigned long size;
447 int r;
448 int i;
449
450 r = kstrtoul(buf, 0, &size);
451 if (r)
452 return r;
453
454 size = PAGE_ALIGN(size);
455
456 if (!lock_fb_info(fbi))
457 return -ENODEV;
458
459 if (display && display->driver->sync)
460 display->driver->sync(display);
461
462 rg = ofbi->region;
463
464 down_write_nested(&rg->lock, rg->id);
465 atomic_inc(&rg->lock_count);
466
467 if (atomic_read(&rg->map_count)) {
468 r = -EBUSY;
469 goto out;
470 }
471
472 for (i = 0; i < fbdev->num_fbs; i++) {
473 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
474 int j;
475
476 if (ofbi2->region != rg)
477 continue;
478
479 for (j = 0; j < ofbi2->num_overlays; j++) {
480 struct omap_overlay *ovl;
481 ovl = ofbi2->overlays[j];
482 if (ovl->is_enabled(ovl)) {
483 r = -EBUSY;
484 goto out;
485 }
486 }
487 }
488
489 if (size != ofbi->region->size) {
490 r = omapfb_realloc_fbmem(fbi, size, ofbi->region->type);
491 if (r) {
492 dev_err(dev, "realloc fbmem failed\n");
493 goto out;
494 }
495 }
496
497 r = count;
498out:
499 atomic_dec(&rg->lock_count);
500 up_write(&rg->lock);
501
502 unlock_fb_info(fbi);
503
504 return r;
505}
506
507static ssize_t show_phys(struct device *dev,
508 struct device_attribute *attr, char *buf)
509{
510 struct fb_info *fbi = dev_get_drvdata(dev);
511 struct omapfb_info *ofbi = FB2OFB(fbi);
512
513 return snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region->paddr);
514}
515
516static ssize_t show_virt(struct device *dev,
517 struct device_attribute *attr, char *buf)
518{
519 struct fb_info *fbi = dev_get_drvdata(dev);
520 struct omapfb_info *ofbi = FB2OFB(fbi);
521
522 return snprintf(buf, PAGE_SIZE, "%p\n", ofbi->region->vaddr);
523}
524
525static ssize_t show_upd_mode(struct device *dev,
526 struct device_attribute *attr, char *buf)
527{
528 struct fb_info *fbi = dev_get_drvdata(dev);
529 enum omapfb_update_mode mode;
530 int r;
531
532 r = omapfb_get_update_mode(fbi, &mode);
533
534 if (r)
535 return r;
536
537 return snprintf(buf, PAGE_SIZE, "%u\n", (unsigned)mode);
538}
539
540static ssize_t store_upd_mode(struct device *dev, struct device_attribute *attr,
541 const char *buf, size_t count)
542{
543 struct fb_info *fbi = dev_get_drvdata(dev);
544 unsigned mode;
545 int r;
546
547 r = kstrtouint(buf, 0, &mode);
548 if (r)
549 return r;
550
551 r = omapfb_set_update_mode(fbi, mode);
552 if (r)
553 return r;
554
555 return count;
556}
557
558static struct device_attribute omapfb_attrs[] = {
559 __ATTR(rotate_type, S_IRUGO | S_IWUSR, show_rotate_type,
560 store_rotate_type),
561 __ATTR(mirror, S_IRUGO | S_IWUSR, show_mirror, store_mirror),
562 __ATTR(size, S_IRUGO | S_IWUSR, show_size, store_size),
563 __ATTR(overlays, S_IRUGO | S_IWUSR, show_overlays, store_overlays),
564 __ATTR(overlays_rotate, S_IRUGO | S_IWUSR, show_overlays_rotate,
565 store_overlays_rotate),
566 __ATTR(phys_addr, S_IRUGO, show_phys, NULL),
567 __ATTR(virt_addr, S_IRUGO, show_virt, NULL),
568 __ATTR(update_mode, S_IRUGO | S_IWUSR, show_upd_mode, store_upd_mode),
569};
570
571int omapfb_create_sysfs(struct omapfb2_device *fbdev)
572{
573 int i;
574 int r;
575
576 DBG("create sysfs for fbs\n");
577 for (i = 0; i < fbdev->num_fbs; i++) {
578 int t;
579 for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) {
580 r = device_create_file(fbdev->fbs[i]->dev,
581 &omapfb_attrs[t]);
582
583 if (r) {
584 dev_err(fbdev->dev, "failed to create sysfs "
585 "file\n");
586 return r;
587 }
588 }
589 }
590
591 return 0;
592}
593
594void omapfb_remove_sysfs(struct omapfb2_device *fbdev)
595{
596 int i, t;
597
598 DBG("remove sysfs for fbs\n");
599 for (i = 0; i < fbdev->num_fbs; i++) {
600 for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++)
601 device_remove_file(fbdev->fbs[i]->dev,
602 &omapfb_attrs[t]);
603 }
604}
605
diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h
deleted file mode 100644
index 623cd872a367..000000000000
--- a/drivers/video/omap2/omapfb/omapfb.h
+++ /dev/null
@@ -1,208 +0,0 @@
1/*
2 * linux/drivers/video/omap2/omapfb.h
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#ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
24#define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
25
26#ifdef CONFIG_FB_OMAP2_DEBUG_SUPPORT
27#define DEBUG
28#endif
29
30#include <linux/rwsem.h>
31#include <linux/dma-attrs.h>
32#include <linux/dma-mapping.h>
33
34#include <video/omapdss.h>
35
36#ifdef DEBUG
37extern bool omapfb_debug;
38#define DBG(format, ...) \
39 do { \
40 if (omapfb_debug) \
41 printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__); \
42 } while (0)
43#else
44#define DBG(format, ...)
45#endif
46
47#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par))
48
49/* max number of overlays to which a framebuffer data can be direct */
50#define OMAPFB_MAX_OVL_PER_FB 3
51
52struct omapfb2_mem_region {
53 int id;
54 struct dma_attrs attrs;
55 void *token;
56 dma_addr_t dma_handle;
57 u32 paddr;
58 void __iomem *vaddr;
59 struct vrfb vrfb;
60 unsigned long size;
61 u8 type; /* OMAPFB_PLANE_MEM_* */
62 bool alloc; /* allocated by the driver */
63 bool map; /* kernel mapped by the driver */
64 atomic_t map_count;
65 struct rw_semaphore lock;
66 atomic_t lock_count;
67};
68
69/* appended to fb_info */
70struct omapfb_info {
71 int id;
72 struct omapfb2_mem_region *region;
73 int num_overlays;
74 struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB];
75 struct omapfb2_device *fbdev;
76 enum omap_dss_rotation_type rotation_type;
77 u8 rotation[OMAPFB_MAX_OVL_PER_FB];
78 bool mirror;
79};
80
81struct omapfb_display_data {
82 struct omapfb2_device *fbdev;
83 struct omap_dss_device *dssdev;
84 u8 bpp_override;
85 enum omapfb_update_mode update_mode;
86 bool auto_update_work_enabled;
87 struct delayed_work auto_update_work;
88};
89
90struct omapfb2_device {
91 struct device *dev;
92 struct mutex mtx;
93
94 u32 pseudo_palette[17];
95
96 int state;
97
98 unsigned num_fbs;
99 struct fb_info *fbs[10];
100 struct omapfb2_mem_region regions[10];
101
102 unsigned num_displays;
103 struct omapfb_display_data displays[10];
104 unsigned num_overlays;
105 struct omap_overlay *overlays[10];
106 unsigned num_managers;
107 struct omap_overlay_manager *managers[10];
108
109 struct workqueue_struct *auto_update_wq;
110};
111
112struct omapfb_colormode {
113 enum omap_color_mode dssmode;
114 u32 bits_per_pixel;
115 u32 nonstd;
116 struct fb_bitfield red;
117 struct fb_bitfield green;
118 struct fb_bitfield blue;
119 struct fb_bitfield transp;
120};
121
122void set_fb_fix(struct fb_info *fbi);
123int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var);
124int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type);
125int omapfb_apply_changes(struct fb_info *fbi, int init);
126
127int omapfb_create_sysfs(struct omapfb2_device *fbdev);
128void omapfb_remove_sysfs(struct omapfb2_device *fbdev);
129
130int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg);
131
132int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
133 struct fb_var_screeninfo *var);
134
135int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
136 u16 posx, u16 posy, u16 outw, u16 outh);
137
138void omapfb_start_auto_update(struct omapfb2_device *fbdev,
139 struct omap_dss_device *display);
140void omapfb_stop_auto_update(struct omapfb2_device *fbdev,
141 struct omap_dss_device *display);
142int omapfb_get_update_mode(struct fb_info *fbi, enum omapfb_update_mode *mode);
143int omapfb_set_update_mode(struct fb_info *fbi, enum omapfb_update_mode mode);
144
145/* find the display connected to this fb, if any */
146static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
147{
148 struct omapfb_info *ofbi = FB2OFB(fbi);
149 struct omap_overlay *ovl;
150
151 /* XXX: returns the display connected to first attached overlay */
152
153 if (ofbi->num_overlays == 0)
154 return NULL;
155
156 ovl = ofbi->overlays[0];
157
158 return ovl->get_device(ovl);
159}
160
161static inline struct omapfb_display_data *get_display_data(
162 struct omapfb2_device *fbdev, struct omap_dss_device *dssdev)
163{
164 int i;
165
166 for (i = 0; i < fbdev->num_displays; ++i)
167 if (fbdev->displays[i].dssdev == dssdev)
168 return &fbdev->displays[i];
169
170 /* This should never happen */
171 BUG();
172 return NULL;
173}
174
175static inline void omapfb_lock(struct omapfb2_device *fbdev)
176{
177 mutex_lock(&fbdev->mtx);
178}
179
180static inline void omapfb_unlock(struct omapfb2_device *fbdev)
181{
182 mutex_unlock(&fbdev->mtx);
183}
184
185static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
186 int enable)
187{
188 if (enable)
189 return ovl->enable(ovl);
190 else
191 return ovl->disable(ovl);
192}
193
194static inline struct omapfb2_mem_region *
195omapfb_get_mem_region(struct omapfb2_mem_region *rg)
196{
197 down_read_nested(&rg->lock, rg->id);
198 atomic_inc(&rg->lock_count);
199 return rg;
200}
201
202static inline void omapfb_put_mem_region(struct omapfb2_mem_region *rg)
203{
204 atomic_dec(&rg->lock_count);
205 up_read(&rg->lock);
206}
207
208#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-01 12:22:36 -0500