2 * linux/drivers/video/omap2/omapfb-main.c
4 * Copyright (C) 2008 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
7 * Some code and ideas taken from drivers/video/omap/ driver
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.
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
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/>.
23 #include <linux/module.h>
24 #include <linux/delay.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/vmalloc.h>
28 #include <linux/device.h>
29 #include <linux/platform_device.h>
30 #include <linux/omapfb.h>
32 #include <mach/display.h>
33 #include <mach/vram.h>
34 #include <mach/vrfb.h>
38 #define MODULE_NAME "omapfb"
40 static char *def_mode;
41 static char *def_vram;
43 static int def_rotate;
44 static int def_mirror;
47 unsigned int omapfb_debug;
48 module_param_named(debug, omapfb_debug, bool, 0644);
49 static unsigned int omapfb_test_pattern;
50 module_param_named(test, omapfb_test_pattern, bool, 0644);
54 static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color)
56 struct fb_var_screeninfo *var = &fbi->var;
57 struct fb_fix_screeninfo *fix = &fbi->fix;
58 void __iomem *addr = fbi->screen_base;
59 const unsigned bytespp = var->bits_per_pixel >> 3;
60 const unsigned line_len = fix->line_length / bytespp;
62 int r = (color >> 16) & 0xff;
63 int g = (color >> 8) & 0xff;
64 int b = (color >> 0) & 0xff;
66 if (var->bits_per_pixel == 16) {
67 u16 __iomem *p = (u16 __iomem *)addr;
68 p += y * line_len + x;
74 __raw_writew((r << 11) | (g << 5) | (b << 0), p);
75 } else if (var->bits_per_pixel == 24) {
76 u8 __iomem *p = (u8 __iomem *)addr;
77 p += (y * line_len + x) * 3;
79 __raw_writeb(b, p + 0);
80 __raw_writeb(g, p + 1);
81 __raw_writeb(r, p + 2);
82 } else if (var->bits_per_pixel == 32) {
83 u32 __iomem *p = (u32 __iomem *)addr;
84 p += y * line_len + x;
85 __raw_writel(color, p);
89 static void fill_fb(struct fb_info *fbi)
91 struct fb_var_screeninfo *var = &fbi->var;
92 const short w = var->xres_virtual;
93 const short h = var->yres_virtual;
94 void __iomem *addr = fbi->screen_base;
100 DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length);
102 for (y = 0; y < h; y++) {
103 for (x = 0; x < w; x++) {
104 if (x < 20 && y < 20)
105 draw_pixel(fbi, x, y, 0xffffff);
106 else if (x < 20 && (y > 20 && y < h - 20))
107 draw_pixel(fbi, x, y, 0xff);
108 else if (y < 20 && (x > 20 && x < w - 20))
109 draw_pixel(fbi, x, y, 0xff00);
110 else if (x > w - 20 && (y > 20 && y < h - 20))
111 draw_pixel(fbi, x, y, 0xff0000);
112 else if (y > h - 20 && (x > 20 && x < w - 20))
113 draw_pixel(fbi, x, y, 0xffff00);
114 else if (x == 20 || x == w - 20 ||
115 y == 20 || y == h - 20)
116 draw_pixel(fbi, x, y, 0xffffff);
117 else if (x == y || w - x == h - y)
118 draw_pixel(fbi, x, y, 0xff00ff);
119 else if (w - x == y || x == h - y)
120 draw_pixel(fbi, x, y, 0x00ffff);
121 else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) {
123 unsigned r = 0, g = 0, b = 0;
125 if (var->bits_per_pixel == 16) {
127 b = (y % 32) * 256 / 32;
129 g = (y % 64) * 256 / 64;
131 r = (y % 32) * 256 / 32;
140 c = (r << 16) | (g << 8) | (b << 0);
141 draw_pixel(fbi, x, y, c);
143 draw_pixel(fbi, x, y, 0);
150 static unsigned omapfb_get_vrfb_offset(struct omapfb_info *ofbi, int rot)
152 struct vrfb *vrfb = &ofbi->region.vrfb;
160 offset = vrfb->yoffset;
163 offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset;
166 offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN;
172 offset *= vrfb->bytespp;
177 static u32 omapfb_get_region_rot_paddr(struct omapfb_info *ofbi)
179 if (ofbi->rotation_type == OMAPFB_ROT_VRFB) {
183 rot = ofbi->rotation;
185 offset = omapfb_get_vrfb_offset(ofbi, rot);
187 return ofbi->region.vrfb.paddr[rot] + offset;
189 return ofbi->region.paddr;
193 u32 omapfb_get_region_paddr(struct omapfb_info *ofbi)
195 if (ofbi->rotation_type == OMAPFB_ROT_VRFB)
196 return ofbi->region.vrfb.paddr[0];
198 return ofbi->region.paddr;
201 void __iomem *omapfb_get_region_vaddr(struct omapfb_info *ofbi)
203 if (ofbi->rotation_type == OMAPFB_ROT_VRFB)
204 return ofbi->region.vrfb.vaddr[0];
206 return ofbi->region.vaddr;
209 static struct omapfb_colormode omapfb_colormodes[] = {
211 .dssmode = OMAP_DSS_COLOR_UYVY,
212 .bits_per_pixel = 16,
213 .nonstd = OMAPFB_COLOR_YUV422,
215 .dssmode = OMAP_DSS_COLOR_YUV2,
216 .bits_per_pixel = 16,
217 .nonstd = OMAPFB_COLOR_YUY422,
219 .dssmode = OMAP_DSS_COLOR_ARGB16,
220 .bits_per_pixel = 16,
221 .red = { .length = 4, .offset = 8, .msb_right = 0 },
222 .green = { .length = 4, .offset = 4, .msb_right = 0 },
223 .blue = { .length = 4, .offset = 0, .msb_right = 0 },
224 .transp = { .length = 4, .offset = 12, .msb_right = 0 },
226 .dssmode = OMAP_DSS_COLOR_RGB16,
227 .bits_per_pixel = 16,
228 .red = { .length = 5, .offset = 11, .msb_right = 0 },
229 .green = { .length = 6, .offset = 5, .msb_right = 0 },
230 .blue = { .length = 5, .offset = 0, .msb_right = 0 },
231 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
233 .dssmode = OMAP_DSS_COLOR_RGB24P,
234 .bits_per_pixel = 24,
235 .red = { .length = 8, .offset = 16, .msb_right = 0 },
236 .green = { .length = 8, .offset = 8, .msb_right = 0 },
237 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
238 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
240 .dssmode = OMAP_DSS_COLOR_RGB24U,
241 .bits_per_pixel = 32,
242 .red = { .length = 8, .offset = 16, .msb_right = 0 },
243 .green = { .length = 8, .offset = 8, .msb_right = 0 },
244 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
245 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
247 .dssmode = OMAP_DSS_COLOR_ARGB32,
248 .bits_per_pixel = 32,
249 .red = { .length = 8, .offset = 16, .msb_right = 0 },
250 .green = { .length = 8, .offset = 8, .msb_right = 0 },
251 .blue = { .length = 8, .offset = 0, .msb_right = 0 },
252 .transp = { .length = 8, .offset = 24, .msb_right = 0 },
254 .dssmode = OMAP_DSS_COLOR_RGBA32,
255 .bits_per_pixel = 32,
256 .red = { .length = 8, .offset = 24, .msb_right = 0 },
257 .green = { .length = 8, .offset = 16, .msb_right = 0 },
258 .blue = { .length = 8, .offset = 8, .msb_right = 0 },
259 .transp = { .length = 8, .offset = 0, .msb_right = 0 },
261 .dssmode = OMAP_DSS_COLOR_RGBX32,
262 .bits_per_pixel = 32,
263 .red = { .length = 8, .offset = 24, .msb_right = 0 },
264 .green = { .length = 8, .offset = 16, .msb_right = 0 },
265 .blue = { .length = 8, .offset = 8, .msb_right = 0 },
266 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
270 static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
271 struct omapfb_colormode *color)
273 bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2)
275 return f1->length == f2->length &&
276 f1->offset == f2->offset &&
277 f1->msb_right == f2->msb_right;
280 if (var->bits_per_pixel == 0 ||
281 var->red.length == 0 ||
282 var->blue.length == 0 ||
283 var->green.length == 0)
286 return var->bits_per_pixel == color->bits_per_pixel &&
287 cmp_component(&var->red, &color->red) &&
288 cmp_component(&var->green, &color->green) &&
289 cmp_component(&var->blue, &color->blue) &&
290 cmp_component(&var->transp, &color->transp);
293 static void assign_colormode_to_var(struct fb_var_screeninfo *var,
294 struct omapfb_colormode *color)
296 var->bits_per_pixel = color->bits_per_pixel;
297 var->nonstd = color->nonstd;
298 var->red = color->red;
299 var->green = color->green;
300 var->blue = color->blue;
301 var->transp = color->transp;
304 static enum omap_color_mode fb_mode_to_dss_mode(struct fb_var_screeninfo *var)
306 enum omap_color_mode dssmode;
309 /* first match with nonstd field */
311 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
312 struct omapfb_colormode *mode = &omapfb_colormodes[i];
313 if (var->nonstd == mode->nonstd) {
314 assign_colormode_to_var(var, mode);
315 return mode->dssmode;
322 /* then try exact match of bpp and colors */
323 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
324 struct omapfb_colormode *mode = &omapfb_colormodes[i];
325 if (cmp_var_to_colormode(var, mode)) {
326 assign_colormode_to_var(var, mode);
327 return mode->dssmode;
331 /* match with bpp if user has not filled color fields
333 switch (var->bits_per_pixel) {
335 dssmode = OMAP_DSS_COLOR_CLUT1;
338 dssmode = OMAP_DSS_COLOR_CLUT2;
341 dssmode = OMAP_DSS_COLOR_CLUT4;
344 dssmode = OMAP_DSS_COLOR_CLUT8;
347 dssmode = OMAP_DSS_COLOR_RGB12U;
350 dssmode = OMAP_DSS_COLOR_RGB16;
353 dssmode = OMAP_DSS_COLOR_RGB24P;
356 dssmode = OMAP_DSS_COLOR_RGB24U;
362 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
363 struct omapfb_colormode *mode = &omapfb_colormodes[i];
364 if (dssmode == mode->dssmode) {
365 assign_colormode_to_var(var, mode);
366 return mode->dssmode;
373 void set_fb_fix(struct fb_info *fbi)
375 struct fb_fix_screeninfo *fix = &fbi->fix;
376 struct fb_var_screeninfo *var = &fbi->var;
377 struct omapfb_info *ofbi = FB2OFB(fbi);
378 struct omapfb2_mem_region *rg = &ofbi->region;
382 /* used by open/write in fbmem.c */
383 fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi);
385 /* used by mmap in fbmem.c */
386 if (ofbi->rotation_type == OMAPFB_ROT_VRFB)
388 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
391 (var->xres_virtual * var->bits_per_pixel) >> 3;
392 fix->smem_start = omapfb_get_region_paddr(ofbi);
393 fix->smem_len = rg->size;
395 fix->type = FB_TYPE_PACKED_PIXELS;
398 fix->visual = FB_VISUAL_PSEUDOCOLOR;
400 switch (var->bits_per_pixel) {
405 fix->visual = FB_VISUAL_TRUECOLOR;
406 /* 12bpp is stored in 16 bits */
412 fix->visual = FB_VISUAL_PSEUDOCOLOR;
417 fix->accel = FB_ACCEL_NONE;
423 if (ofbi->rotation_type == OMAPFB_ROT_VRFB)
424 omap_vrfb_setup(&rg->vrfb, rg->paddr,
425 var->xres_virtual, var->yres_virtual,
426 var->bits_per_pixel >> 3);
430 /* check new var and possibly modify it to be ok */
431 int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
433 struct omapfb_info *ofbi = FB2OFB(fbi);
434 struct omap_display *display = fb2display(fbi);
435 unsigned long max_frame_size;
436 unsigned long line_size;
437 int xres_min, yres_min;
438 int xres_max, yres_max;
439 enum omap_color_mode mode = 0;
443 DBG("check_fb_var %d\n", ofbi->id);
445 if (ofbi->region.size == 0)
448 mode = fb_mode_to_dss_mode(var);
450 DBG("cannot convert var to omap dss mode\n");
454 for (i = 0; i < ofbi->num_overlays; ++i) {
455 if ((ofbi->overlays[i]->supported_modes & mode) == 0) {
456 DBG("invalid mode\n");
461 if (var->rotate < 0 || var->rotate > 3)
464 if (var->rotate != fbi->var.rotate) {
465 DBG("rotation changing\n");
467 ofbi->rotation = var->rotate;
469 if (abs(var->rotate - fbi->var.rotate) != 2) {
471 DBG("rotate changing 90/270 degrees. "
472 "swapping x/y res\n");
475 var->yres = var->xres;
478 tmp = var->yres_virtual;
479 var->yres_virtual = var->xres_virtual;
480 var->xres_virtual = tmp;
484 xres_min = OMAPFB_PLANE_XRES_MIN;
486 yres_min = OMAPFB_PLANE_YRES_MIN;
489 bytespp = var->bits_per_pixel >> 3;
491 /* XXX: some applications seem to set virtual res to 0. */
492 if (var->xres_virtual == 0)
493 var->xres_virtual = var->xres;
495 if (var->yres_virtual == 0)
496 var->yres_virtual = var->yres;
498 if (var->xres_virtual < xres_min || var->yres_virtual < yres_min)
501 if (var->xres < xres_min)
502 var->xres = xres_min;
503 if (var->yres < yres_min)
504 var->yres = yres_min;
505 if (var->xres > xres_max)
506 var->xres = xres_max;
507 if (var->yres > yres_max)
508 var->yres = yres_max;
510 if (var->xres > var->xres_virtual)
511 var->xres = var->xres_virtual;
512 if (var->yres > var->yres_virtual)
513 var->yres = var->yres_virtual;
515 if (ofbi->rotation_type == OMAPFB_ROT_VRFB)
516 line_size = OMAP_VRFB_LINE_LEN * bytespp;
518 line_size = var->xres_virtual * bytespp;
520 max_frame_size = ofbi->region.size;
522 DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size);
524 if (line_size * var->yres_virtual > max_frame_size) {
525 DBG("can't fit FB into memory, reducing y\n");
526 var->yres_virtual = max_frame_size / line_size;
528 if (var->yres_virtual < yres_min)
529 var->yres_virtual = yres_min;
531 if (var->yres > var->yres_virtual)
532 var->yres = var->yres_virtual;
535 if (line_size * var->yres_virtual > max_frame_size) {
536 DBG("can't fit FB into memory, reducing x\n");
537 if (ofbi->rotation_type == OMAPFB_ROT_VRFB)
540 var->xres_virtual = max_frame_size / var->yres_virtual /
543 if (var->xres_virtual < xres_min)
544 var->xres_virtual = xres_min;
546 if (var->xres > var->xres_virtual)
547 var->xres = var->xres_virtual;
549 line_size = var->xres_virtual * bytespp;
552 if (line_size * var->yres_virtual > max_frame_size) {
553 DBG("cannot fit FB to memory\n");
557 if (var->xres + var->xoffset > var->xres_virtual)
558 var->xoffset = var->xres_virtual - var->xres;
559 if (var->yres + var->yoffset > var->yres_virtual)
560 var->yoffset = var->yres_virtual - var->yres;
562 DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
563 var->xres, var->yres,
564 var->xres_virtual, var->yres_virtual);
570 if (display && display->get_timings) {
571 struct omap_video_timings timings;
572 display->get_timings(display, &timings);
574 /* pixclock in ps, the rest in pixclock */
575 var->pixclock = timings.pixel_clock != 0 ?
576 KHZ2PICOS(timings.pixel_clock) :
578 var->left_margin = timings.hfp;
579 var->right_margin = timings.hbp;
580 var->upper_margin = timings.vfp;
581 var->lower_margin = timings.vbp;
582 var->hsync_len = timings.hsw;
583 var->vsync_len = timings.vsw;
586 var->left_margin = 0;
587 var->right_margin = 0;
588 var->upper_margin = 0;
589 var->lower_margin = 0;
594 /* TODO: get these from panel->config */
595 var->vmode = FB_VMODE_NONINTERLACED;
602 * ---------------------------------------------------------------------------
603 * fbdev framework callbacks
604 * ---------------------------------------------------------------------------
606 static int omapfb_open(struct fb_info *fbi, int user)
611 static int omapfb_release(struct fb_info *fbi, int user)
613 struct omapfb_info *ofbi = FB2OFB(fbi);
614 struct omapfb2_device *fbdev = ofbi->fbdev;
615 struct omap_display *display = fb2display(fbi);
617 DBG("Closing fb with plane index %d\n", ofbi->id);
621 if (display && display->get_update_mode && display->update) {
622 /* XXX this update should be removed, I think. But it's
623 * good for debugging */
624 if (display->get_update_mode(display) ==
625 OMAP_DSS_UPDATE_MANUAL) {
629 display->sync(display);
631 display->get_resolution(display, &w, &h);
632 display->update(display, 0, 0, w, h);
637 if (display && display->sync)
638 display->sync(display);
640 omapfb_unlock(fbdev);
645 /* setup overlay according to the fb */
646 static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
647 u16 posx, u16 posy, u16 outw, u16 outh)
650 struct omapfb_info *ofbi = FB2OFB(fbi);
651 struct fb_var_screeninfo *var = &fbi->var;
652 struct fb_fix_screeninfo *fix = &fbi->fix;
653 enum omap_color_mode mode = 0;
656 void __iomem *data_start_v;
657 struct omap_overlay_info info;
662 DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id,
663 posx, posy, outw, outh);
665 if (ofbi->rotation == FB_ROTATE_CW || ofbi->rotation == FB_ROTATE_CCW) {
673 offset = ((var->yoffset * var->xres_virtual +
674 var->xoffset) * var->bits_per_pixel) >> 3;
676 if (ofbi->rotation_type == OMAPFB_ROT_VRFB) {
677 data_start_p = omapfb_get_region_rot_paddr(ofbi);
680 data_start_p = omapfb_get_region_paddr(ofbi);
681 data_start_v = omapfb_get_region_vaddr(ofbi);
684 data_start_p += offset;
685 data_start_v += offset;
687 mode = fb_mode_to_dss_mode(var);
689 if (mode == -EINVAL) {
690 DBG("fb_mode_to_dss_mode failed");
695 screen_width = fix->line_length / (var->bits_per_pixel >> 3);
697 ovl->get_overlay_info(ovl, &info);
699 if (ofbi->rotation_type == OMAPFB_ROT_VRFB) {
703 rot = ofbi->rotation;
704 mirror = ofbi->mirror;
707 info.paddr = data_start_p;
708 info.vaddr = data_start_v;
709 info.screen_width = screen_width;
712 info.color_mode = mode;
714 info.mirror = mirror;
718 info.out_width = outw;
719 info.out_height = outh;
721 r = ovl->set_overlay_info(ovl, &info);
723 DBG("ovl->setup_overlay_info failed\n");
730 DBG("setup_overlay failed\n");
734 /* apply var to the overlay */
735 int omapfb_apply_changes(struct fb_info *fbi, int init)
738 struct omapfb_info *ofbi = FB2OFB(fbi);
739 struct fb_var_screeninfo *var = &fbi->var;
740 struct omap_overlay *ovl;
746 if (omapfb_test_pattern)
750 for (i = 0; i < ofbi->num_overlays; i++) {
751 ovl = ofbi->overlays[i];
753 DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id);
755 if (ofbi->region.size == 0) {
756 /* the fb is not available. disable the overlay */
757 omapfb_overlay_enable(ovl, 0);
758 if (!init && ovl->manager)
759 ovl->manager->apply(ovl->manager);
763 if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
764 if (ofbi->rotation == FB_ROTATE_CW ||
765 ofbi->rotation == FB_ROTATE_CCW) {
773 outw = ovl->info.out_width;
774 outh = ovl->info.out_height;
781 posx = ovl->info.pos_x;
782 posy = ovl->info.pos_y;
785 r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
789 if (!init && ovl->manager)
790 ovl->manager->apply(ovl->manager);
794 DBG("apply_changes failed\n");
798 /* checks var and eventually tweaks it to something supported,
799 * DO NOT MODIFY PAR */
800 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
804 DBG("check_var(%d)\n", FB2OFB(fbi)->id);
806 r = check_fb_var(fbi, var);
811 /* set the video mode according to info->var */
812 static int omapfb_set_par(struct fb_info *fbi)
816 DBG("set_par(%d)\n", FB2OFB(fbi)->id);
819 r = omapfb_apply_changes(fbi, 0);
824 static int omapfb_pan_display(struct fb_var_screeninfo *var,
827 struct omapfb_info *ofbi = FB2OFB(fbi);
828 struct omapfb2_device *fbdev = ofbi->fbdev;
831 DBG("pan_display(%d)\n", ofbi->id);
835 if (var->xoffset != fbi->var.xoffset ||
836 var->yoffset != fbi->var.yoffset) {
837 struct fb_var_screeninfo new_var;
840 new_var.xoffset = var->xoffset;
841 new_var.yoffset = var->yoffset;
843 r = check_fb_var(fbi, &new_var);
848 r = omapfb_apply_changes(fbi, 0);
852 omapfb_unlock(fbdev);
857 static void mmap_user_open(struct vm_area_struct *vma)
859 struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
861 atomic_inc(&ofbi->map_count);
864 static void mmap_user_close(struct vm_area_struct *vma)
866 struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
868 atomic_dec(&ofbi->map_count);
871 static struct vm_operations_struct mmap_user_ops = {
872 .open = mmap_user_open,
873 .close = mmap_user_close,
876 static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
878 struct omapfb_info *ofbi = FB2OFB(fbi);
879 struct fb_fix_screeninfo *fix = &fbi->fix;
884 if (vma->vm_end - vma->vm_start == 0)
886 if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
888 off = vma->vm_pgoff << PAGE_SHIFT;
890 start = omapfb_get_region_paddr(ofbi);
894 if ((vma->vm_end - vma->vm_start + off) > len)
899 DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off);
901 vma->vm_pgoff = off >> PAGE_SHIFT;
902 vma->vm_flags |= VM_IO | VM_RESERVED;
903 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
904 vma->vm_ops = &mmap_user_ops;
905 vma->vm_private_data = ofbi;
906 if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
907 vma->vm_end - vma->vm_start, vma->vm_page_prot))
909 /* vm_ops.open won't be called for mmap itself. */
910 atomic_inc(&ofbi->map_count);
914 /* Store a single color palette entry into a pseudo palette or the hardware
915 * palette if one is available. For now we support only 16bpp and thus store
916 * the entry only to the pseudo palette.
918 static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
919 u_int blue, u_int transp, int update_hw_pal)
921 /*struct omapfb_info *ofbi = FB2OFB(fbi);*/
922 /*struct omapfb2_device *fbdev = ofbi->fbdev;*/
923 struct fb_var_screeninfo *var = &fbi->var;
926 enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */
928 /*switch (plane->color_mode) {*/
930 case OMAPFB_COLOR_YUV422:
931 case OMAPFB_COLOR_YUV420:
932 case OMAPFB_COLOR_YUY422:
935 case OMAPFB_COLOR_CLUT_8BPP:
936 case OMAPFB_COLOR_CLUT_4BPP:
937 case OMAPFB_COLOR_CLUT_2BPP:
938 case OMAPFB_COLOR_CLUT_1BPP:
940 if (fbdev->ctrl->setcolreg)
941 r = fbdev->ctrl->setcolreg(regno, red, green, blue,
942 transp, update_hw_pal);
947 case OMAPFB_COLOR_RGB565:
948 case OMAPFB_COLOR_RGB444:
949 case OMAPFB_COLOR_RGB24P:
950 case OMAPFB_COLOR_RGB24U:
961 pal = ((red >> (16 - var->red.length)) <<
963 ((green >> (16 - var->green.length)) <<
965 (blue >> (16 - var->blue.length));
966 ((u32 *)(fbi->pseudo_palette))[regno] = pal;
975 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
976 u_int transp, struct fb_info *info)
980 return _setcolreg(info, regno, red, green, blue, transp, 1);
983 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
986 u16 *red, *green, *blue, *transp;
994 transp = cmap->transp;
997 for (count = 0; count < cmap->len; count++) {
1000 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
1001 count == cmap->len - 1);
1009 static int omapfb_blank(int blank, struct fb_info *fbi)
1011 struct omapfb_info *ofbi = FB2OFB(fbi);
1012 struct omapfb2_device *fbdev = ofbi->fbdev;
1013 struct omap_display *display = fb2display(fbi);
1020 case FB_BLANK_UNBLANK:
1021 if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
1024 if (display->resume)
1025 r = display->resume(display);
1027 if (r == 0 && display->get_update_mode &&
1028 display->get_update_mode(display) ==
1029 OMAP_DSS_UPDATE_MANUAL)
1034 case FB_BLANK_NORMAL:
1035 /* FB_BLANK_NORMAL could be implemented.
1036 * Needs DSS additions. */
1037 case FB_BLANK_VSYNC_SUSPEND:
1038 case FB_BLANK_HSYNC_SUSPEND:
1039 case FB_BLANK_POWERDOWN:
1040 if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
1043 if (display->suspend)
1044 r = display->suspend(display);
1053 omapfb_unlock(fbdev);
1055 if (r == 0 && do_update && display->update) {
1057 display->get_resolution(display, &w, &h);
1059 r = display->update(display, 0, 0, w, h);
1066 /* XXX fb_read and fb_write are needed for VRFB */
1067 ssize_t omapfb_write(struct fb_info *info, const char __user *buf,
1068 size_t count, loff_t *ppos)
1070 DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos);
1071 // XXX needed for VRFB
1076 static struct fb_ops omapfb_ops = {
1077 .owner = THIS_MODULE,
1078 .fb_open = omapfb_open,
1079 .fb_release = omapfb_release,
1080 .fb_fillrect = cfb_fillrect,
1081 .fb_copyarea = cfb_copyarea,
1082 .fb_imageblit = cfb_imageblit,
1083 .fb_blank = omapfb_blank,
1084 .fb_ioctl = omapfb_ioctl,
1085 .fb_check_var = omapfb_check_var,
1086 .fb_set_par = omapfb_set_par,
1087 .fb_pan_display = omapfb_pan_display,
1088 .fb_mmap = omapfb_mmap,
1089 .fb_setcolreg = omapfb_setcolreg,
1090 .fb_setcmap = omapfb_setcmap,
1091 //.fb_write = omapfb_write,
1094 static void omapfb_free_fbmem(struct fb_info *fbi)
1096 struct omapfb_info *ofbi = FB2OFB(fbi);
1097 struct omapfb2_device *fbdev = ofbi->fbdev;
1098 struct omapfb2_mem_region *rg;
1103 if (omap_vram_free(rg->paddr, rg->size))
1104 dev_err(fbdev->dev, "VRAM FREE failed\n");
1109 if (ofbi->rotation_type == OMAPFB_ROT_VRFB) {
1110 /* unmap the 0 angle rotation */
1111 if (rg->vrfb.vaddr[0]) {
1112 iounmap(rg->vrfb.vaddr[0]);
1113 omap_vrfb_release_ctx(&rg->vrfb);
1123 static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
1127 DBG("free all fbmem\n");
1129 for (i = 0; i < fbdev->num_fbs; i++) {
1130 struct fb_info *fbi = fbdev->fbs[i];
1131 omapfb_free_fbmem(fbi);
1132 memset(&fbi->fix, 0, sizeof(fbi->fix));
1133 memset(&fbi->var, 0, sizeof(fbi->var));
1139 static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
1140 unsigned long paddr)
1142 struct omapfb_info *ofbi = FB2OFB(fbi);
1143 struct omapfb2_device *fbdev = ofbi->fbdev;
1144 struct omapfb2_mem_region *rg;
1145 void __iomem *vaddr;
1150 memset(rg, 0, sizeof(*rg));
1152 size = PAGE_ALIGN(size);
1155 DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
1156 r = omap_vram_alloc(OMAPFB_MEMTYPE_SDRAM, size, &paddr);
1159 DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr,
1161 r = omap_vram_reserve(paddr, size);
1165 dev_err(fbdev->dev, "failed to allocate framebuffer\n");
1169 if (ofbi->rotation_type != OMAPFB_ROT_VRFB) {
1170 vaddr = ioremap_wc(paddr, size);
1173 dev_err(fbdev->dev, "failed to ioremap framebuffer\n");
1174 omap_vram_free(paddr, size);
1178 DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr);
1181 memset_io(vaddr, 0, size);
1185 r = omap_vrfb_request_ctx(&rg->vrfb);
1187 dev_err(fbdev->dev, "vrfb create ctx failed\n");
1191 /* only ioremap the 0 angle view */
1192 va = ioremap_wc(rg->vrfb.paddr[0], size);
1195 printk(KERN_ERR "vrfb: ioremap failed\n");
1196 omap_vrfb_release_ctx(&rg->vrfb);
1200 DBG("ioremapped vrfb area 0 to %p\n", va);
1202 rg->vrfb.vaddr[0] = va;
1207 memset_io(va, 0, size);
1218 /* allocate fbmem using display resolution as reference */
1219 static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
1220 unsigned long paddr)
1222 struct omapfb_info *ofbi = FB2OFB(fbi);
1223 struct omap_display *display;
1226 display = fb2display(fbi);
1231 switch (display->get_recommended_bpp(display)) {
1246 display->get_resolution(display, &w, &h);
1248 if (ofbi->rotation_type == OMAPFB_ROT_VRFB) {
1249 int oldw = w, oldh = h;
1251 omap_vrfb_adjust_size(&w, &h, bytespp);
1253 /* Because we change the resolution of the 0 degree view,
1254 * we need to alloc max(w, h) for height */
1256 w = OMAP_VRFB_LINE_LEN;
1258 DBG("adjusting fb mem size for VRFB, %dx%d -> %dx%d\n",
1262 size = w * h * bytespp;
1265 return omapfb_alloc_fbmem(fbi, size, paddr);
1268 static int omapfb_parse_vram_param(const char *param, int max_entries,
1269 unsigned long *sizes, unsigned long *paddrs)
1273 unsigned long paddr = 0;
1276 start = (char *)param;
1281 fbnum = simple_strtoul(p, &p, 10);
1289 if (fbnum >= max_entries)
1292 size = memparse(p + 1, &p);
1300 paddr = simple_strtoul(p + 1, &p, 16);
1307 paddrs[fbnum] = paddr;
1308 sizes[fbnum] = size;
1324 static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev)
1327 unsigned long vram_sizes[10];
1328 unsigned long vram_paddrs[10];
1330 memset(&vram_sizes, 0, sizeof(vram_sizes));
1331 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1333 if (def_vram && omapfb_parse_vram_param(def_vram, 10,
1334 vram_sizes, vram_paddrs)) {
1335 dev_err(fbdev->dev, "failed to parse vram parameter\n");
1337 memset(&vram_sizes, 0, sizeof(vram_sizes));
1338 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1341 if (fbdev->dev->platform_data) {
1342 struct omapfb_platform_data *opd;
1343 opd = fbdev->dev->platform_data;
1344 for (i = 0; i < opd->mem_desc.region_cnt; ++i) {
1345 if (!vram_sizes[i]) {
1347 unsigned long paddr;
1349 size = opd->mem_desc.region[i].size;
1350 paddr = opd->mem_desc.region[i].paddr;
1352 vram_sizes[i] = size;
1353 vram_paddrs[i] = paddr;
1358 for (i = 0; i < fbdev->num_fbs; i++) {
1359 /* allocate memory automatically only for fb0, or if
1360 * excplicitly defined with vram or plat data option */
1361 if (i == 0 || vram_sizes[i] != 0) {
1362 r = omapfb_alloc_fbmem_display(fbdev->fbs[i],
1363 vram_sizes[i], vram_paddrs[i]);
1370 for (i = 0; i < fbdev->num_fbs; i++) {
1371 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1372 struct omapfb2_mem_region *rg;
1375 DBG("region%d phys %08x virt %p size=%lu\n",
1385 int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
1387 struct omapfb_info *ofbi = FB2OFB(fbi);
1388 struct omapfb2_device *fbdev = ofbi->fbdev;
1389 struct omap_display *display = fb2display(fbi);
1390 struct omapfb2_mem_region *rg = &ofbi->region;
1391 unsigned long old_size = rg->size;
1392 unsigned long old_paddr = rg->paddr;
1393 int old_type = rg->type;
1396 if (type > OMAPFB_MEMTYPE_MAX)
1399 size = PAGE_ALIGN(size);
1401 if (old_size == size && old_type == type)
1404 if (display && display->sync)
1405 display->sync(display);
1407 omapfb_free_fbmem(fbi);
1410 memset(&fbi->fix, 0, sizeof(fbi->fix));
1411 memset(&fbi->var, 0, sizeof(fbi->var));
1415 r = omapfb_alloc_fbmem(fbi, size, 0);
1419 omapfb_alloc_fbmem(fbi, old_size, old_paddr);
1421 if (rg->size == 0) {
1422 memset(&fbi->fix, 0, sizeof(fbi->fix));
1423 memset(&fbi->var, 0, sizeof(fbi->var));
1429 if (old_size == size)
1432 if (old_size == 0) {
1433 DBG("initializing fb %d\n", ofbi->id);
1434 r = omapfb_fb_init(fbdev, fbi);
1436 DBG("omapfb_fb_init failed\n");
1439 r = omapfb_apply_changes(fbi, 1);
1441 DBG("omapfb_apply_changes failed\n");
1445 struct fb_var_screeninfo new_var;
1446 memcpy(&new_var, &fbi->var, sizeof(new_var));
1447 r = check_fb_var(fbi, &new_var);
1450 memcpy(&fbi->var, &new_var, sizeof(fbi->var));
1456 omapfb_free_fbmem(fbi);
1457 memset(&fbi->fix, 0, sizeof(fbi->fix));
1458 memset(&fbi->var, 0, sizeof(fbi->var));
1462 /* initialize fb_info, var, fix to something sane based on the display */
1463 int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
1465 struct fb_var_screeninfo *var = &fbi->var;
1466 struct fb_fix_screeninfo *fix = &fbi->fix;
1467 struct omap_display *display = fb2display(fbi);
1468 struct omapfb_info *ofbi = FB2OFB(fbi);
1471 fbi->fbops = &omapfb_ops;
1472 fbi->flags = FBINFO_FLAG_DEFAULT;
1473 fbi->pseudo_palette = fbdev->pseudo_palette;
1475 strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
1477 if (ofbi->region.size == 0) {
1478 memset(&fbi->fix, 0, sizeof(fbi->fix));
1479 memset(&fbi->var, 0, sizeof(fbi->var));
1485 var->rotate = ofbi->rotation;
1489 display->get_resolution(display, &w, &h);
1491 if (ofbi->rotation == FB_ROTATE_CW ||
1492 ofbi->rotation == FB_ROTATE_CCW) {
1500 var->xres_virtual = var->xres;
1501 var->yres_virtual = var->yres;
1503 switch (display->get_recommended_bpp(display)) {
1505 var->bits_per_pixel = 16;
1508 var->bits_per_pixel = 32;
1511 dev_err(fbdev->dev, "illegal display bpp\n");
1515 /* if there's no display, let's just guess some basic values */
1518 var->xres_virtual = var->xres;
1519 var->yres_virtual = var->yres;
1520 var->bits_per_pixel = 16;
1523 r = check_fb_var(fbi, var);
1529 r = fb_alloc_cmap(&fbi->cmap, 256, 0);
1531 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1537 static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
1539 fb_dealloc_cmap(&fbi->cmap);
1543 static void omapfb_free_resources(struct omapfb2_device *fbdev)
1547 DBG("free_resources\n");
1552 for (i = 0; i < fbdev->num_fbs; i++)
1553 unregister_framebuffer(fbdev->fbs[i]);
1555 /* free the reserved fbmem */
1556 omapfb_free_all_fbmem(fbdev);
1558 for (i = 0; i < fbdev->num_fbs; i++) {
1559 fbinfo_cleanup(fbdev, fbdev->fbs[i]);
1560 framebuffer_release(fbdev->fbs[i]);
1563 for (i = 0; i < fbdev->num_displays; i++) {
1564 if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED)
1565 fbdev->displays[i]->disable(fbdev->displays[i]);
1567 omap_dss_put_display(fbdev->displays[i]);
1570 dev_set_drvdata(fbdev->dev, NULL);
1574 static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
1580 DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS);
1582 /* allocate fb_infos */
1583 for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) {
1584 struct fb_info *fbi;
1585 struct omapfb_info *ofbi;
1587 fbi = framebuffer_alloc(sizeof(struct omapfb_info),
1592 "unable to allocate memory for plane info\n");
1596 fbdev->fbs[i] = fbi;
1599 ofbi->fbdev = fbdev;
1602 /* assign these early, so that fb alloc can use them */
1603 ofbi->rotation_type = def_vrfb ? OMAPFB_ROT_VRFB :
1605 ofbi->rotation = def_rotate;
1606 ofbi->mirror = def_mirror;
1611 DBG("fb_infos allocated\n");
1613 /* assign overlays for the fbs */
1614 for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) {
1615 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1617 ofbi->overlays[0] = fbdev->overlays[i];
1618 ofbi->num_overlays = 1;
1621 /* allocate fb memories */
1622 r = omapfb_allocate_all_fbs(fbdev);
1624 dev_err(fbdev->dev, "failed to allocate fbmem\n");
1628 DBG("fbmems allocated\n");
1630 /* setup fb_infos */
1631 for (i = 0; i < fbdev->num_fbs; i++) {
1632 r = omapfb_fb_init(fbdev, fbdev->fbs[i]);
1634 dev_err(fbdev->dev, "failed to setup fb_info\n");
1639 DBG("fb_infos initialized\n");
1641 for (i = 0; i < fbdev->num_fbs; i++) {
1642 r = register_framebuffer(fbdev->fbs[i]);
1645 "registering framebuffer %d failed\n", i);
1650 DBG("framebuffers registered\n");
1652 for (i = 0; i < fbdev->num_fbs; i++) {
1653 r = omapfb_apply_changes(fbdev->fbs[i], 1);
1655 dev_err(fbdev->dev, "failed to change mode\n");
1660 DBG("create sysfs for fbs\n");
1661 r = omapfb_create_sysfs(fbdev);
1663 dev_err(fbdev->dev, "failed to create sysfs entries\n");
1668 if (fbdev->num_fbs > 0) {
1669 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]);
1671 if (ofbi->num_overlays > 0 ) {
1672 struct omap_overlay *ovl = ofbi->overlays[0];
1674 r = omapfb_overlay_enable(ovl, 1);
1678 "failed to enable overlay\n");
1684 DBG("create_framebuffers done\n");
1689 int omapfb_mode_to_timings(const char *mode_str,
1690 struct omap_video_timings *timings, u8 *bpp)
1693 struct fb_var_screeninfo var;
1694 struct fb_ops fbops;
1697 #ifdef CONFIG_OMAP2_DSS_VENC
1698 if (strcmp(mode_str, "pal") == 0) {
1699 *timings = omap_dss_pal_timings;
1702 } else if (strcmp(mode_str, "ntsc") == 0) {
1703 *timings = omap_dss_ntsc_timings;
1709 /* this is quite a hack, but I wanted to use the modedb and for
1710 * that we need fb_info and var, so we create dummy ones */
1712 memset(&fbi, 0, sizeof(fbi));
1713 memset(&var, 0, sizeof(var));
1714 memset(&fbops, 0, sizeof(fbops));
1717 r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24);
1720 timings->pixel_clock = PICOS2KHZ(var.pixclock);
1721 timings->hfp = var.left_margin;
1722 timings->hbp = var.right_margin;
1723 timings->vfp = var.upper_margin;
1724 timings->vbp = var.lower_margin;
1725 timings->hsw = var.hsync_len;
1726 timings->vsw = var.vsync_len;
1727 timings->x_res = var.xres;
1728 timings->y_res = var.yres;
1730 switch (var.bits_per_pixel) {
1747 static int omapfb_set_def_mode(struct omap_display *display, char *mode_str)
1751 struct omap_video_timings timings;
1753 r = omapfb_mode_to_timings(mode_str, &timings, &bpp);
1757 display->panel->recommended_bpp = bpp;
1759 if (!display->check_timings || !display->set_timings)
1762 r = display->check_timings(display, &timings);
1766 display->set_timings(display, &timings);
1771 static int omapfb_parse_def_modes(struct omapfb2_device *fbdev)
1773 char *str, *options, *this_opt;
1776 str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL);
1777 strcpy(str, def_mode);
1780 while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1781 char *p, *display_str, *mode_str;
1782 struct omap_display *display;
1785 p = strchr(this_opt, ':');
1792 display_str = this_opt;
1796 for (i = 0; i < fbdev->num_displays; ++i) {
1797 if (strcmp(fbdev->displays[i]->name,
1798 display_str) == 0) {
1799 display = fbdev->displays[i];
1809 r = omapfb_set_def_mode(display, mode_str);
1819 static int omapfb_probe(struct platform_device *pdev)
1821 struct omapfb2_device *fbdev = NULL;
1824 struct omap_overlay *ovl;
1825 struct omap_display *def_display;
1827 DBG("omapfb_probe\n");
1829 if (pdev->num_resources != 0) {
1830 dev_err(&pdev->dev, "probed for an unknown device\n");
1835 fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL);
1836 if (fbdev == NULL) {
1841 mutex_init(&fbdev->mtx);
1843 fbdev->dev = &pdev->dev;
1844 platform_set_drvdata(pdev, fbdev);
1846 fbdev->num_displays = 0;
1847 t = omap_dss_get_num_displays();
1848 for (i = 0; i < t; i++) {
1849 struct omap_display *display;
1850 display = omap_dss_get_display(i);
1852 dev_err(&pdev->dev, "can't get display %d\n", i);
1857 fbdev->displays[fbdev->num_displays++] = display;
1860 if (fbdev->num_displays == 0) {
1861 dev_err(&pdev->dev, "no displays\n");
1866 fbdev->num_overlays = omap_dss_get_num_overlays();
1867 for (i = 0; i < fbdev->num_overlays; i++)
1868 fbdev->overlays[i] = omap_dss_get_overlay(i);
1870 fbdev->num_managers = omap_dss_get_num_overlay_managers();
1871 for (i = 0; i < fbdev->num_managers; i++)
1872 fbdev->managers[i] = omap_dss_get_overlay_manager(i);
1875 /* gfx overlay should be the default one. find a display
1876 * connected to that, and use it as default display */
1877 ovl = omap_dss_get_overlay(0);
1878 if (ovl->manager && ovl->manager->display) {
1879 def_display = ovl->manager->display;
1881 dev_err(&pdev->dev, "cannot find default display\n");
1886 if (def_mode && strlen(def_mode) > 0) {
1887 if (omapfb_parse_def_modes(fbdev))
1888 dev_err(&pdev->dev, "cannot parse default modes\n");
1891 r = omapfb_create_framebuffers(fbdev);
1895 for (i = 0; i < fbdev->num_managers; i++) {
1896 struct omap_overlay_manager *mgr;
1897 mgr = fbdev->managers[i];
1898 r = mgr->apply(mgr);
1900 dev_err(fbdev->dev, "failed to apply dispc config\n");
1905 DBG("mgr->apply'ed\n");
1907 r = def_display->enable(def_display);
1909 dev_err(fbdev->dev, "Failed to enable display '%s'\n",
1914 /* set the update mode */
1915 if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
1916 #ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
1917 if (def_display->set_update_mode)
1918 def_display->set_update_mode(def_display,
1919 OMAP_DSS_UPDATE_AUTO);
1920 if (def_display->enable_te)
1921 def_display->enable_te(def_display, 1);
1923 if (def_display->set_update_mode)
1924 def_display->set_update_mode(def_display,
1925 OMAP_DSS_UPDATE_MANUAL);
1926 if (def_display->enable_te)
1927 def_display->enable_te(def_display, 0);
1930 if (def_display->set_update_mode)
1931 def_display->set_update_mode(def_display,
1932 OMAP_DSS_UPDATE_AUTO);
1935 for (i = 0; i < fbdev->num_displays; i++) {
1936 struct omap_display *display = fbdev->displays[i];
1939 if (!display->get_update_mode || !display->update)
1942 if (display->get_update_mode(display) ==
1943 OMAP_DSS_UPDATE_MANUAL) {
1945 display->get_resolution(display, &w, &h);
1946 display->update(display, 0, 0, w, h);
1950 DBG("display->updated\n");
1955 omapfb_free_resources(fbdev);
1957 dev_err(&pdev->dev, "failed to setup omapfb\n");
1961 static int omapfb_remove(struct platform_device *pdev)
1963 struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
1965 /* FIXME: wait till completion of pending events */
1967 omapfb_remove_sysfs(fbdev);
1969 omapfb_free_resources(fbdev);
1974 static struct platform_driver omapfb_driver = {
1975 .probe = omapfb_probe,
1976 .remove = omapfb_remove,
1979 .owner = THIS_MODULE,
1983 static int __init omapfb_init(void)
1985 DBG("omapfb_init\n");
1987 if (platform_driver_register(&omapfb_driver)) {
1988 printk(KERN_ERR "failed to register omapfb driver\n");
1995 static void __exit omapfb_exit(void)
1997 DBG("omapfb_exit\n");
1998 platform_driver_unregister(&omapfb_driver);
2001 module_param_named(mode, def_mode, charp, 0);
2002 module_param_named(vram, def_vram, charp, 0);
2003 module_param_named(rotate, def_rotate, int, 0);
2004 module_param_named(vrfb, def_vrfb, bool, 0);
2005 module_param_named(mirror, def_mirror, bool, 0);
2007 /* late_initcall to let panel/ctrl drivers loaded first.
2008 * I guess better option would be a more dynamic approach,
2009 * so that omapfb reacts to new panels when they are loaded */
2010 late_initcall(omapfb_init);
2011 /*module_init(omapfb_init);*/
2012 module_exit(omapfb_exit);
2014 MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
2015 MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
2016 MODULE_LICENSE("GPL v2");