2 * Framebuffer driver for TI OMAP boards
4 * Copyright (C) 2004 Nokia Corporation
5 * Author: Imre Deak <imre.deak@nokia.com>
8 * Alex McMains <aam@ridgerun.com> - Original driver
9 * Juha Yrjola <juha.yrjola@nokia.com> - Original driver and improvements
10 * Dirk Behme <dirk.behme@de.bosch.com> - changes for 2.6 kernel API
11 * Texas Instruments - H3 support
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the
15 * Free Software Foundation; either version 2 of the License, or (at your
16 * option) any later version.
18 * This program is distributed in the hope that it will be useful, but
19 * WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * General Public License for more details.
23 * You should have received a copy of the GNU General Public License along
24 * with this program; if not, write to the Free Software Foundation, Inc.,
25 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 #include <linux/platform_device.h>
29 #include <linux/slab.h>
30 #include <linux/uaccess.h>
31 #include <linux/module.h>
39 #define MODULE_NAME "omapfb"
41 static unsigned int def_accel;
42 static unsigned long def_vram[OMAPFB_PLANE_NUM];
43 static unsigned int def_vram_cnt;
44 static unsigned long def_vxres;
45 static unsigned long def_vyres;
46 static unsigned int def_rotate;
47 static unsigned int def_mirror;
49 #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
50 static int manual_update = 1;
52 static int manual_update;
55 static struct platform_device *fbdev_pdev;
56 static struct lcd_panel *fbdev_panel;
57 static struct omapfb_device *omapfb_dev;
59 struct caps_table_struct {
64 static struct caps_table_struct ctrl_caps[] = {
65 { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" },
66 { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" },
67 { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
68 { OMAPFB_CAPS_PLANE_SCALE, "scale plane" },
69 { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
70 { OMAPFB_CAPS_WINDOW_SCALE, "scale window" },
71 { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
72 { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" },
73 { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" },
76 static struct caps_table_struct color_caps[] = {
77 { 1 << OMAPFB_COLOR_RGB565, "RGB565", },
78 { 1 << OMAPFB_COLOR_YUV422, "YUV422", },
79 { 1 << OMAPFB_COLOR_YUV420, "YUV420", },
80 { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", },
81 { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", },
82 { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", },
83 { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", },
84 { 1 << OMAPFB_COLOR_RGB444, "RGB444", },
85 { 1 << OMAPFB_COLOR_YUY422, "YUY422", },
88 static void omapdss_release(struct device *dev)
92 /* dummy device for clocks */
93 static struct platform_device omapdss_device = {
94 .name = "omapdss_dss",
97 .release = omapdss_release,
102 * ---------------------------------------------------------------------------
104 * ---------------------------------------------------------------------------
106 extern struct lcd_ctrl hwa742_ctrl;
107 extern struct lcd_ctrl blizzard_ctrl;
109 static const struct lcd_ctrl *ctrls[] = {
110 #ifdef CONFIG_ARCH_OMAP1
116 #ifdef CONFIG_FB_OMAP_LCDC_HWA742
119 #ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD
124 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
125 #ifdef CONFIG_ARCH_OMAP1
126 extern struct lcd_ctrl_extif omap1_ext_if;
128 extern struct lcd_ctrl_extif omap2_ext_if;
132 static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
134 mutex_lock(&fbdev->rqueue_mutex);
137 static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
139 mutex_unlock(&fbdev->rqueue_mutex);
143 * ---------------------------------------------------------------------------
144 * LCD controller and LCD DMA
145 * ---------------------------------------------------------------------------
147 /* Lookup table to map elem size to elem type. */
148 static const int dma_elem_type[] = {
150 OMAP_DMA_DATA_TYPE_S8,
151 OMAP_DMA_DATA_TYPE_S16,
153 OMAP_DMA_DATA_TYPE_S32,
157 * Allocate resources needed for LCD controller and LCD DMA operations. Video
158 * memory is allocated from system memory according to the virtual display
159 * size, except if a bigger memory size is specified explicitly as a kernel
162 static int ctrl_init(struct omapfb_device *fbdev)
167 /* kernel/module vram parameters override boot tags/board config */
169 for (i = 0; i < def_vram_cnt; i++)
170 fbdev->mem_desc.region[i].size =
171 PAGE_ALIGN(def_vram[i]);
172 fbdev->mem_desc.region_cnt = i;
174 struct omapfb_platform_data *conf;
176 conf = fbdev->dev->platform_data;
177 fbdev->mem_desc = conf->mem_desc;
180 if (!fbdev->mem_desc.region_cnt) {
181 struct lcd_panel *panel = fbdev->panel;
183 int bpp = panel->bpp;
185 /* 12 bpp is packed in 16 bits */
188 def_size = def_vxres * def_vyres * bpp / 8;
189 fbdev->mem_desc.region_cnt = 1;
190 fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
192 r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
194 dev_err(fbdev->dev, "controller initialization failed (%d)\n",
200 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
201 dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
203 fbdev->mem_desc.region[i].paddr,
204 fbdev->mem_desc.region[i].vaddr,
205 fbdev->mem_desc.region[i].size);
211 static void ctrl_cleanup(struct omapfb_device *fbdev)
213 fbdev->ctrl->cleanup();
216 /* Must be called with fbdev->rqueue_mutex held. */
217 static int ctrl_change_mode(struct fb_info *fbi)
220 unsigned long offset;
221 struct omapfb_plane_struct *plane = fbi->par;
222 struct omapfb_device *fbdev = plane->fbdev;
223 struct fb_var_screeninfo *var = &fbi->var;
225 offset = var->yoffset * fbi->fix.line_length +
226 var->xoffset * var->bits_per_pixel / 8;
228 if (fbdev->ctrl->sync)
230 r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
231 offset, var->xres_virtual,
232 plane->info.pos_x, plane->info.pos_y,
233 var->xres, var->yres, plane->color_mode);
237 if (fbdev->ctrl->set_rotate != NULL) {
238 r = fbdev->ctrl->set_rotate(var->rotate);
243 if (fbdev->ctrl->set_scale != NULL)
244 r = fbdev->ctrl->set_scale(plane->idx,
245 var->xres, var->yres,
246 plane->info.out_width,
247 plane->info.out_height);
253 * ---------------------------------------------------------------------------
254 * fbdev framework callbacks and the ioctl interface
255 * ---------------------------------------------------------------------------
257 /* Called each time the omapfb device is opened */
258 static int omapfb_open(struct fb_info *info, int user)
263 static void omapfb_sync(struct fb_info *info);
265 /* Called when the omapfb device is closed. We make sure that any pending
266 * gfx DMA operations are ended, before we return. */
267 static int omapfb_release(struct fb_info *info, int user)
273 /* Store a single color palette entry into a pseudo palette or the hardware
274 * palette if one is available. For now we support only 16bpp and thus store
275 * the entry only to the pseudo palette.
277 static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
278 u_int blue, u_int transp, int update_hw_pal)
280 struct omapfb_plane_struct *plane = info->par;
281 struct omapfb_device *fbdev = plane->fbdev;
282 struct fb_var_screeninfo *var = &info->var;
285 switch (plane->color_mode) {
286 case OMAPFB_COLOR_YUV422:
287 case OMAPFB_COLOR_YUV420:
288 case OMAPFB_COLOR_YUY422:
291 case OMAPFB_COLOR_CLUT_8BPP:
292 case OMAPFB_COLOR_CLUT_4BPP:
293 case OMAPFB_COLOR_CLUT_2BPP:
294 case OMAPFB_COLOR_CLUT_1BPP:
295 if (fbdev->ctrl->setcolreg)
296 r = fbdev->ctrl->setcolreg(regno, red, green, blue,
297 transp, update_hw_pal);
299 case OMAPFB_COLOR_RGB565:
300 case OMAPFB_COLOR_RGB444:
311 pal = ((red >> (16 - var->red.length)) <<
313 ((green >> (16 - var->green.length)) <<
315 (blue >> (16 - var->blue.length));
316 ((u32 *)(info->pseudo_palette))[regno] = pal;
325 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
326 u_int transp, struct fb_info *info)
328 return _setcolreg(info, regno, red, green, blue, transp, 1);
331 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
334 u16 *red, *green, *blue, *transp;
340 transp = cmap->transp;
343 for (count = 0; count < cmap->len; count++) {
346 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
347 count == cmap->len - 1);
355 static int omapfb_update_full_screen(struct fb_info *fbi);
357 static int omapfb_blank(int blank, struct fb_info *fbi)
359 struct omapfb_plane_struct *plane = fbi->par;
360 struct omapfb_device *fbdev = plane->fbdev;
364 omapfb_rqueue_lock(fbdev);
366 case FB_BLANK_UNBLANK:
367 if (fbdev->state == OMAPFB_SUSPENDED) {
368 if (fbdev->ctrl->resume)
369 fbdev->ctrl->resume();
370 fbdev->panel->enable(fbdev->panel);
371 fbdev->state = OMAPFB_ACTIVE;
372 if (fbdev->ctrl->get_update_mode() ==
373 OMAPFB_MANUAL_UPDATE)
377 case FB_BLANK_POWERDOWN:
378 if (fbdev->state == OMAPFB_ACTIVE) {
379 fbdev->panel->disable(fbdev->panel);
380 if (fbdev->ctrl->suspend)
381 fbdev->ctrl->suspend();
382 fbdev->state = OMAPFB_SUSPENDED;
388 omapfb_rqueue_unlock(fbdev);
390 if (r == 0 && do_update)
391 r = omapfb_update_full_screen(fbi);
396 static void omapfb_sync(struct fb_info *fbi)
398 struct omapfb_plane_struct *plane = fbi->par;
399 struct omapfb_device *fbdev = plane->fbdev;
401 omapfb_rqueue_lock(fbdev);
402 if (fbdev->ctrl->sync)
404 omapfb_rqueue_unlock(fbdev);
408 * Set fb_info.fix fields and also updates fbdev.
409 * When calling this fb_info.var must be set up already.
411 static void set_fb_fix(struct fb_info *fbi, int from_init)
413 struct fb_fix_screeninfo *fix = &fbi->fix;
414 struct fb_var_screeninfo *var = &fbi->var;
415 struct omapfb_plane_struct *plane = fbi->par;
416 struct omapfb_mem_region *rg;
419 rg = &plane->fbdev->mem_desc.region[plane->idx];
420 fbi->screen_base = rg->vaddr;
423 mutex_lock(&fbi->mm_lock);
424 fix->smem_start = rg->paddr;
425 fix->smem_len = rg->size;
426 mutex_unlock(&fbi->mm_lock);
428 fix->smem_start = rg->paddr;
429 fix->smem_len = rg->size;
432 fix->type = FB_TYPE_PACKED_PIXELS;
433 bpp = var->bits_per_pixel;
435 fix->visual = FB_VISUAL_PSEUDOCOLOR;
436 else switch (var->bits_per_pixel) {
439 fix->visual = FB_VISUAL_TRUECOLOR;
440 /* 12bpp is stored in 16 bits */
447 fix->visual = FB_VISUAL_PSEUDOCOLOR;
450 fix->accel = FB_ACCEL_OMAP1610;
451 fix->line_length = var->xres_virtual * bpp / 8;
454 static int set_color_mode(struct omapfb_plane_struct *plane,
455 struct fb_var_screeninfo *var)
457 switch (var->nonstd) {
460 case OMAPFB_COLOR_YUV422:
461 var->bits_per_pixel = 16;
462 plane->color_mode = var->nonstd;
464 case OMAPFB_COLOR_YUV420:
465 var->bits_per_pixel = 12;
466 plane->color_mode = var->nonstd;
468 case OMAPFB_COLOR_YUY422:
469 var->bits_per_pixel = 16;
470 plane->color_mode = var->nonstd;
476 switch (var->bits_per_pixel) {
478 plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
481 plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
484 plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
487 plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
490 var->bits_per_pixel = 16;
492 if (plane->fbdev->panel->bpp == 12)
493 plane->color_mode = OMAPFB_COLOR_RGB444;
495 plane->color_mode = OMAPFB_COLOR_RGB565;
503 * Check the values in var against our capabilities and in case of out of
504 * bound values try to adjust them.
506 static int set_fb_var(struct fb_info *fbi,
507 struct fb_var_screeninfo *var)
510 unsigned long max_frame_size;
511 unsigned long line_size;
512 int xres_min, xres_max;
513 int yres_min, yres_max;
514 struct omapfb_plane_struct *plane = fbi->par;
515 struct omapfb_device *fbdev = plane->fbdev;
516 struct lcd_panel *panel = fbdev->panel;
518 if (set_color_mode(plane, var) < 0)
521 bpp = var->bits_per_pixel;
522 if (plane->color_mode == OMAPFB_COLOR_RGB444)
525 switch (var->rotate) {
528 xres_min = OMAPFB_PLANE_XRES_MIN;
529 xres_max = panel->x_res;
530 yres_min = OMAPFB_PLANE_YRES_MIN;
531 yres_max = panel->y_res;
532 if (cpu_is_omap15xx()) {
533 var->xres = panel->x_res;
534 var->yres = panel->y_res;
539 xres_min = OMAPFB_PLANE_YRES_MIN;
540 xres_max = panel->y_res;
541 yres_min = OMAPFB_PLANE_XRES_MIN;
542 yres_max = panel->x_res;
543 if (cpu_is_omap15xx()) {
544 var->xres = panel->y_res;
545 var->yres = panel->x_res;
552 if (var->xres < xres_min)
553 var->xres = xres_min;
554 if (var->yres < yres_min)
555 var->yres = yres_min;
556 if (var->xres > xres_max)
557 var->xres = xres_max;
558 if (var->yres > yres_max)
559 var->yres = yres_max;
561 if (var->xres_virtual < var->xres)
562 var->xres_virtual = var->xres;
563 if (var->yres_virtual < var->yres)
564 var->yres_virtual = var->yres;
565 max_frame_size = fbdev->mem_desc.region[plane->idx].size;
566 line_size = var->xres_virtual * bpp / 8;
567 if (line_size * var->yres_virtual > max_frame_size) {
568 /* Try to keep yres_virtual first */
569 line_size = max_frame_size / var->yres_virtual;
570 var->xres_virtual = line_size * 8 / bpp;
571 if (var->xres_virtual < var->xres) {
572 /* Still doesn't fit. Shrink yres_virtual too */
573 var->xres_virtual = var->xres;
574 line_size = var->xres * bpp / 8;
575 var->yres_virtual = max_frame_size / line_size;
577 /* Recheck this, as the virtual size changed. */
578 if (var->xres_virtual < var->xres)
579 var->xres = var->xres_virtual;
580 if (var->yres_virtual < var->yres)
581 var->yres = var->yres_virtual;
582 if (var->xres < xres_min || var->yres < yres_min)
585 if (var->xres + var->xoffset > var->xres_virtual)
586 var->xoffset = var->xres_virtual - var->xres;
587 if (var->yres + var->yoffset > var->yres_virtual)
588 var->yoffset = var->yres_virtual - var->yres;
590 if (plane->color_mode == OMAPFB_COLOR_RGB444) {
591 var->red.offset = 8; var->red.length = 4;
592 var->red.msb_right = 0;
593 var->green.offset = 4; var->green.length = 4;
594 var->green.msb_right = 0;
595 var->blue.offset = 0; var->blue.length = 4;
596 var->blue.msb_right = 0;
598 var->red.offset = 11; var->red.length = 5;
599 var->red.msb_right = 0;
600 var->green.offset = 5; var->green.length = 6;
601 var->green.msb_right = 0;
602 var->blue.offset = 0; var->blue.length = 5;
603 var->blue.msb_right = 0;
610 /* pixclock in ps, the rest in pixclock */
611 var->pixclock = 10000000 / (panel->pixel_clock / 100);
612 var->left_margin = panel->hfp;
613 var->right_margin = panel->hbp;
614 var->upper_margin = panel->vfp;
615 var->lower_margin = panel->vbp;
616 var->hsync_len = panel->hsw;
617 var->vsync_len = panel->vsw;
619 /* TODO: get these from panel->config */
620 var->vmode = FB_VMODE_NONINTERLACED;
627 /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
628 static void omapfb_rotate(struct fb_info *fbi, int rotate)
630 struct omapfb_plane_struct *plane = fbi->par;
631 struct omapfb_device *fbdev = plane->fbdev;
633 omapfb_rqueue_lock(fbdev);
634 if (rotate != fbi->var.rotate) {
635 struct fb_var_screeninfo *new_var = &fbdev->new_var;
637 memcpy(new_var, &fbi->var, sizeof(*new_var));
638 new_var->rotate = rotate;
639 if (set_fb_var(fbi, new_var) == 0 &&
640 memcmp(new_var, &fbi->var, sizeof(*new_var))) {
641 memcpy(&fbi->var, new_var, sizeof(*new_var));
642 ctrl_change_mode(fbi);
645 omapfb_rqueue_unlock(fbdev);
649 * Set new x,y offsets in the virtual display for the visible area and switch
652 static int omapfb_pan_display(struct fb_var_screeninfo *var,
655 struct omapfb_plane_struct *plane = fbi->par;
656 struct omapfb_device *fbdev = plane->fbdev;
659 omapfb_rqueue_lock(fbdev);
660 if (var->xoffset != fbi->var.xoffset ||
661 var->yoffset != fbi->var.yoffset) {
662 struct fb_var_screeninfo *new_var = &fbdev->new_var;
664 memcpy(new_var, &fbi->var, sizeof(*new_var));
665 new_var->xoffset = var->xoffset;
666 new_var->yoffset = var->yoffset;
667 if (set_fb_var(fbi, new_var))
670 memcpy(&fbi->var, new_var, sizeof(*new_var));
671 ctrl_change_mode(fbi);
674 omapfb_rqueue_unlock(fbdev);
679 /* Set mirror to vertical axis and switch to the new mode. */
680 static int omapfb_mirror(struct fb_info *fbi, int mirror)
682 struct omapfb_plane_struct *plane = fbi->par;
683 struct omapfb_device *fbdev = plane->fbdev;
686 omapfb_rqueue_lock(fbdev);
687 mirror = mirror ? 1 : 0;
688 if (cpu_is_omap15xx())
690 else if (mirror != plane->info.mirror) {
691 plane->info.mirror = mirror;
692 r = ctrl_change_mode(fbi);
694 omapfb_rqueue_unlock(fbdev);
700 * Check values in var, try to adjust them in case of out of bound values if
701 * possible, or return error.
703 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
705 struct omapfb_plane_struct *plane = fbi->par;
706 struct omapfb_device *fbdev = plane->fbdev;
709 omapfb_rqueue_lock(fbdev);
710 if (fbdev->ctrl->sync != NULL)
712 r = set_fb_var(fbi, var);
713 omapfb_rqueue_unlock(fbdev);
719 * Switch to a new mode. The parameters for it has been check already by
722 static int omapfb_set_par(struct fb_info *fbi)
724 struct omapfb_plane_struct *plane = fbi->par;
725 struct omapfb_device *fbdev = plane->fbdev;
728 omapfb_rqueue_lock(fbdev);
730 r = ctrl_change_mode(fbi);
731 omapfb_rqueue_unlock(fbdev);
736 int omapfb_update_window_async(struct fb_info *fbi,
737 struct omapfb_update_window *win,
738 void (*callback)(void *),
742 struct omapfb_plane_struct *plane = fbi->par;
743 struct omapfb_device *fbdev = plane->fbdev;
744 struct fb_var_screeninfo *var = &fbi->var;
746 switch (var->rotate) {
749 xres = fbdev->panel->x_res;
750 yres = fbdev->panel->y_res;
754 xres = fbdev->panel->y_res;
755 yres = fbdev->panel->x_res;
761 if (win->x >= xres || win->y >= yres ||
762 win->out_x > xres || win->out_y > yres)
765 if (!fbdev->ctrl->update_window ||
766 fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
769 if (win->x + win->width > xres)
770 win->width = xres - win->x;
771 if (win->y + win->height > yres)
772 win->height = yres - win->y;
773 if (win->out_x + win->out_width > xres)
774 win->out_width = xres - win->out_x;
775 if (win->out_y + win->out_height > yres)
776 win->out_height = yres - win->out_y;
777 if (!win->width || !win->height || !win->out_width || !win->out_height)
780 return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
782 EXPORT_SYMBOL(omapfb_update_window_async);
784 static int omapfb_update_win(struct fb_info *fbi,
785 struct omapfb_update_window *win)
787 struct omapfb_plane_struct *plane = fbi->par;
790 omapfb_rqueue_lock(plane->fbdev);
791 ret = omapfb_update_window_async(fbi, win, NULL, NULL);
792 omapfb_rqueue_unlock(plane->fbdev);
797 static int omapfb_update_full_screen(struct fb_info *fbi)
799 struct omapfb_plane_struct *plane = fbi->par;
800 struct omapfb_device *fbdev = plane->fbdev;
801 struct omapfb_update_window win;
804 if (!fbdev->ctrl->update_window ||
805 fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
810 win.width = fbi->var.xres;
811 win.height = fbi->var.yres;
814 win.out_width = fbi->var.xres;
815 win.out_height = fbi->var.yres;
818 omapfb_rqueue_lock(fbdev);
819 r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
820 omapfb_rqueue_unlock(fbdev);
825 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
827 struct omapfb_plane_struct *plane = fbi->par;
828 struct omapfb_device *fbdev = plane->fbdev;
829 struct lcd_panel *panel = fbdev->panel;
830 struct omapfb_plane_info old_info;
833 if (pi->pos_x + pi->out_width > panel->x_res ||
834 pi->pos_y + pi->out_height > panel->y_res)
837 omapfb_rqueue_lock(fbdev);
838 if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
840 * This plane's memory was freed, can't enable it
841 * until it's reallocated.
846 old_info = plane->info;
849 r = ctrl_change_mode(fbi);
851 plane->info = old_info;
855 r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
857 plane->info = old_info;
861 omapfb_rqueue_unlock(fbdev);
865 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
867 struct omapfb_plane_struct *plane = fbi->par;
873 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
875 struct omapfb_plane_struct *plane = fbi->par;
876 struct omapfb_device *fbdev = plane->fbdev;
877 struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
881 if (fbdev->ctrl->setup_mem == NULL)
883 if (mi->type > OMAPFB_MEMTYPE_MAX)
886 size = PAGE_ALIGN(mi->size);
887 omapfb_rqueue_lock(fbdev);
888 if (plane->info.enabled) {
892 if (rg->size != size || rg->type != mi->type) {
893 struct fb_var_screeninfo *new_var = &fbdev->new_var;
894 unsigned long old_size = rg->size;
895 u8 old_type = rg->type;
901 * size == 0 is a special case, for which we
902 * don't check / adjust the screen parameters.
903 * This isn't a problem since the plane can't
904 * be reenabled unless its size is > 0.
906 if (old_size != size && size) {
908 memcpy(new_var, &fbi->var, sizeof(*new_var));
909 r = set_fb_var(fbi, new_var);
915 if (fbdev->ctrl->sync)
917 r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
919 /* Revert changes. */
926 if (old_size != size) {
928 memcpy(&fbi->var, new_var, sizeof(fbi->var));
932 * Set these explicitly to indicate that the
933 * plane memory is dealloce'd, the other
934 * screen parameters in var / fix are invalid.
936 mutex_lock(&fbi->mm_lock);
937 fbi->fix.smem_start = 0;
938 fbi->fix.smem_len = 0;
939 mutex_unlock(&fbi->mm_lock);
944 omapfb_rqueue_unlock(fbdev);
949 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
951 struct omapfb_plane_struct *plane = fbi->par;
952 struct omapfb_device *fbdev = plane->fbdev;
953 struct omapfb_mem_region *rg;
955 rg = &fbdev->mem_desc.region[plane->idx];
956 memset(mi, 0, sizeof(*mi));
963 static int omapfb_set_color_key(struct omapfb_device *fbdev,
964 struct omapfb_color_key *ck)
968 if (!fbdev->ctrl->set_color_key)
971 omapfb_rqueue_lock(fbdev);
972 r = fbdev->ctrl->set_color_key(ck);
973 omapfb_rqueue_unlock(fbdev);
978 static int omapfb_get_color_key(struct omapfb_device *fbdev,
979 struct omapfb_color_key *ck)
983 if (!fbdev->ctrl->get_color_key)
986 omapfb_rqueue_lock(fbdev);
987 r = fbdev->ctrl->get_color_key(ck);
988 omapfb_rqueue_unlock(fbdev);
993 static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
994 static int notifier_inited;
996 static void omapfb_init_notifier(void)
1000 for (i = 0; i < OMAPFB_PLANE_NUM; i++)
1001 BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
1004 int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
1005 omapfb_notifier_callback_t callback,
1006 void *callback_data)
1010 if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
1013 if (!notifier_inited) {
1014 omapfb_init_notifier();
1015 notifier_inited = 1;
1018 omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
1019 unsigned long, void *))callback;
1020 omapfb_nb->data = callback_data;
1021 r = blocking_notifier_chain_register(
1022 &omapfb_client_list[omapfb_nb->plane_idx],
1026 if (omapfb_dev != NULL &&
1027 omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
1028 omapfb_dev->ctrl->bind_client(omapfb_nb);
1033 EXPORT_SYMBOL(omapfb_register_client);
1035 int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
1037 return blocking_notifier_chain_unregister(
1038 &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
1040 EXPORT_SYMBOL(omapfb_unregister_client);
1042 void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
1046 if (!notifier_inited)
1047 /* no client registered yet */
1050 for (i = 0; i < OMAPFB_PLANE_NUM; i++)
1051 blocking_notifier_call_chain(&omapfb_client_list[i], event,
1054 EXPORT_SYMBOL(omapfb_notify_clients);
1056 static int omapfb_set_update_mode(struct omapfb_device *fbdev,
1057 enum omapfb_update_mode mode)
1061 omapfb_rqueue_lock(fbdev);
1062 r = fbdev->ctrl->set_update_mode(mode);
1063 omapfb_rqueue_unlock(fbdev);
1068 static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
1072 omapfb_rqueue_lock(fbdev);
1073 r = fbdev->ctrl->get_update_mode();
1074 omapfb_rqueue_unlock(fbdev);
1079 static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
1080 struct omapfb_caps *caps)
1082 memset(caps, 0, sizeof(*caps));
1083 fbdev->ctrl->get_caps(plane, caps);
1084 caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
1087 /* For lcd testing */
1088 void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
1090 omapfb_rqueue_lock(fbdev);
1091 *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
1092 if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
1093 struct omapfb_update_window win;
1095 memset(&win, 0, sizeof(win));
1100 fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
1102 omapfb_rqueue_unlock(fbdev);
1104 EXPORT_SYMBOL(omapfb_write_first_pixel);
1107 * Ioctl interface. Part of the kernel mode frame buffer API is duplicated
1108 * here to be accessible by user mode code.
1110 static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
1113 struct omapfb_plane_struct *plane = fbi->par;
1114 struct omapfb_device *fbdev = plane->fbdev;
1115 struct fb_ops *ops = fbi->fbops;
1117 struct omapfb_update_window update_window;
1118 struct omapfb_plane_info plane_info;
1119 struct omapfb_mem_info mem_info;
1120 struct omapfb_color_key color_key;
1121 enum omapfb_update_mode update_mode;
1122 struct omapfb_caps caps;
1123 unsigned int mirror;
1132 if (get_user(p.mirror, (int __user *)arg))
1135 omapfb_mirror(fbi, p.mirror);
1137 case OMAPFB_SYNC_GFX:
1142 case OMAPFB_SET_UPDATE_MODE:
1143 if (get_user(p.update_mode, (int __user *)arg))
1146 r = omapfb_set_update_mode(fbdev, p.update_mode);
1148 case OMAPFB_GET_UPDATE_MODE:
1149 p.update_mode = omapfb_get_update_mode(fbdev);
1150 if (put_user(p.update_mode,
1151 (enum omapfb_update_mode __user *)arg))
1154 case OMAPFB_UPDATE_WINDOW_OLD:
1155 if (copy_from_user(&p.update_window, (void __user *)arg,
1156 sizeof(struct omapfb_update_window_old)))
1159 struct omapfb_update_window *u = &p.update_window;
1162 u->out_width = u->width;
1163 u->out_height = u->height;
1164 memset(u->reserved, 0, sizeof(u->reserved));
1165 r = omapfb_update_win(fbi, u);
1168 case OMAPFB_UPDATE_WINDOW:
1169 if (copy_from_user(&p.update_window, (void __user *)arg,
1170 sizeof(p.update_window)))
1173 r = omapfb_update_win(fbi, &p.update_window);
1175 case OMAPFB_SETUP_PLANE:
1176 if (copy_from_user(&p.plane_info, (void __user *)arg,
1177 sizeof(p.plane_info)))
1180 r = omapfb_setup_plane(fbi, &p.plane_info);
1182 case OMAPFB_QUERY_PLANE:
1183 if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
1185 if (copy_to_user((void __user *)arg, &p.plane_info,
1186 sizeof(p.plane_info)))
1189 case OMAPFB_SETUP_MEM:
1190 if (copy_from_user(&p.mem_info, (void __user *)arg,
1191 sizeof(p.mem_info)))
1194 r = omapfb_setup_mem(fbi, &p.mem_info);
1196 case OMAPFB_QUERY_MEM:
1197 if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
1199 if (copy_to_user((void __user *)arg, &p.mem_info,
1200 sizeof(p.mem_info)))
1203 case OMAPFB_SET_COLOR_KEY:
1204 if (copy_from_user(&p.color_key, (void __user *)arg,
1205 sizeof(p.color_key)))
1208 r = omapfb_set_color_key(fbdev, &p.color_key);
1210 case OMAPFB_GET_COLOR_KEY:
1211 if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
1213 if (copy_to_user((void __user *)arg, &p.color_key,
1214 sizeof(p.color_key)))
1217 case OMAPFB_GET_CAPS:
1218 omapfb_get_caps(fbdev, plane->idx, &p.caps);
1219 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
1222 case OMAPFB_LCD_TEST:
1226 if (get_user(test_num, (int __user *)arg)) {
1230 if (!fbdev->panel->run_test) {
1234 r = fbdev->panel->run_test(fbdev->panel, test_num);
1237 case OMAPFB_CTRL_TEST:
1241 if (get_user(test_num, (int __user *)arg)) {
1245 if (!fbdev->ctrl->run_test) {
1249 r = fbdev->ctrl->run_test(test_num);
1259 static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1261 struct omapfb_plane_struct *plane = info->par;
1262 struct omapfb_device *fbdev = plane->fbdev;
1265 omapfb_rqueue_lock(fbdev);
1266 r = fbdev->ctrl->mmap(info, vma);
1267 omapfb_rqueue_unlock(fbdev);
1273 * Callback table for the frame buffer framework. Some of these pointers
1274 * will be changed according to the current setting of fb_info->accel_flags.
1276 static struct fb_ops omapfb_ops = {
1277 .owner = THIS_MODULE,
1278 .fb_open = omapfb_open,
1279 .fb_release = omapfb_release,
1280 .fb_setcolreg = omapfb_setcolreg,
1281 .fb_setcmap = omapfb_setcmap,
1282 .fb_fillrect = cfb_fillrect,
1283 .fb_copyarea = cfb_copyarea,
1284 .fb_imageblit = cfb_imageblit,
1285 .fb_blank = omapfb_blank,
1286 .fb_ioctl = omapfb_ioctl,
1287 .fb_check_var = omapfb_check_var,
1288 .fb_set_par = omapfb_set_par,
1289 .fb_rotate = omapfb_rotate,
1290 .fb_pan_display = omapfb_pan_display,
1294 * ---------------------------------------------------------------------------
1296 * ---------------------------------------------------------------------------
1298 /* omapfbX sysfs entries */
1299 static ssize_t omapfb_show_caps_num(struct device *dev,
1300 struct device_attribute *attr, char *buf)
1302 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1305 struct omapfb_caps caps;
1309 while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1310 omapfb_get_caps(fbdev, plane, &caps);
1311 size += snprintf(&buf[size], PAGE_SIZE - size,
1312 "plane#%d %#010x %#010x %#010x\n",
1313 plane, caps.ctrl, caps.plane_color, caps.wnd_color);
1319 static ssize_t omapfb_show_caps_text(struct device *dev,
1320 struct device_attribute *attr, char *buf)
1322 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1324 struct omapfb_caps caps;
1330 while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1331 omapfb_get_caps(fbdev, plane, &caps);
1332 size += snprintf(&buf[size], PAGE_SIZE - size,
1333 "plane#%d:\n", plane);
1334 for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
1335 size < PAGE_SIZE; i++) {
1336 if (ctrl_caps[i].flag & caps.ctrl)
1337 size += snprintf(&buf[size], PAGE_SIZE - size,
1338 " %s\n", ctrl_caps[i].name);
1340 size += snprintf(&buf[size], PAGE_SIZE - size,
1341 " plane colors:\n");
1342 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1343 size < PAGE_SIZE; i++) {
1344 if (color_caps[i].flag & caps.plane_color)
1345 size += snprintf(&buf[size], PAGE_SIZE - size,
1346 " %s\n", color_caps[i].name);
1348 size += snprintf(&buf[size], PAGE_SIZE - size,
1349 " window colors:\n");
1350 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1351 size < PAGE_SIZE; i++) {
1352 if (color_caps[i].flag & caps.wnd_color)
1353 size += snprintf(&buf[size], PAGE_SIZE - size,
1354 " %s\n", color_caps[i].name);
1362 static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
1363 static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
1365 /* panel sysfs entries */
1366 static ssize_t omapfb_show_panel_name(struct device *dev,
1367 struct device_attribute *attr, char *buf)
1369 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1371 return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
1374 static ssize_t omapfb_show_bklight_level(struct device *dev,
1375 struct device_attribute *attr,
1378 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1381 if (fbdev->panel->get_bklight_level) {
1382 r = snprintf(buf, PAGE_SIZE, "%d\n",
1383 fbdev->panel->get_bklight_level(fbdev->panel));
1389 static ssize_t omapfb_store_bklight_level(struct device *dev,
1390 struct device_attribute *attr,
1391 const char *buf, size_t size)
1393 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1396 if (fbdev->panel->set_bklight_level) {
1399 if (sscanf(buf, "%10d", &level) == 1) {
1400 r = fbdev->panel->set_bklight_level(fbdev->panel,
1406 return r ? r : size;
1409 static ssize_t omapfb_show_bklight_max(struct device *dev,
1410 struct device_attribute *attr, char *buf)
1412 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1415 if (fbdev->panel->get_bklight_level) {
1416 r = snprintf(buf, PAGE_SIZE, "%d\n",
1417 fbdev->panel->get_bklight_max(fbdev->panel));
1423 static struct device_attribute dev_attr_panel_name =
1424 __ATTR(name, 0444, omapfb_show_panel_name, NULL);
1425 static DEVICE_ATTR(backlight_level, 0664,
1426 omapfb_show_bklight_level, omapfb_store_bklight_level);
1427 static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
1429 static struct attribute *panel_attrs[] = {
1430 &dev_attr_panel_name.attr,
1431 &dev_attr_backlight_level.attr,
1432 &dev_attr_backlight_max.attr,
1436 static struct attribute_group panel_attr_grp = {
1438 .attrs = panel_attrs,
1441 /* ctrl sysfs entries */
1442 static ssize_t omapfb_show_ctrl_name(struct device *dev,
1443 struct device_attribute *attr, char *buf)
1445 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1447 return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
1450 static struct device_attribute dev_attr_ctrl_name =
1451 __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
1453 static struct attribute *ctrl_attrs[] = {
1454 &dev_attr_ctrl_name.attr,
1458 static struct attribute_group ctrl_attr_grp = {
1460 .attrs = ctrl_attrs,
1463 static int omapfb_register_sysfs(struct omapfb_device *fbdev)
1467 if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
1470 if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
1473 if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
1476 if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
1481 sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1483 device_remove_file(fbdev->dev, &dev_attr_caps_text);
1485 device_remove_file(fbdev->dev, &dev_attr_caps_num);
1487 dev_err(fbdev->dev, "unable to register sysfs interface\n");
1491 static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
1493 sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
1494 sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1495 device_remove_file(fbdev->dev, &dev_attr_caps_num);
1496 device_remove_file(fbdev->dev, &dev_attr_caps_text);
1500 * ---------------------------------------------------------------------------
1502 * ---------------------------------------------------------------------------
1504 /* Initialize system fb_info object and set the default video mode.
1505 * The frame buffer memory already allocated by lcddma_init
1507 static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
1509 struct fb_var_screeninfo *var = &info->var;
1510 struct fb_fix_screeninfo *fix = &info->fix;
1513 info->fbops = &omapfb_ops;
1514 info->flags = FBINFO_FLAG_DEFAULT;
1516 strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
1518 info->pseudo_palette = fbdev->pseudo_palette;
1520 var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0;
1521 var->xres = def_vxres;
1522 var->yres = def_vyres;
1523 var->xres_virtual = def_vxres;
1524 var->yres_virtual = def_vyres;
1525 var->rotate = def_rotate;
1526 var->bits_per_pixel = fbdev->panel->bpp;
1528 set_fb_var(info, var);
1529 set_fb_fix(info, 1);
1531 r = fb_alloc_cmap(&info->cmap, 16, 0);
1533 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1538 /* Release the fb_info object */
1539 static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
1541 fb_dealloc_cmap(&fbi->cmap);
1544 static void planes_cleanup(struct omapfb_device *fbdev)
1548 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1549 if (fbdev->fb_info[i] == NULL)
1551 fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
1552 framebuffer_release(fbdev->fb_info[i]);
1556 static int planes_init(struct omapfb_device *fbdev)
1558 struct fb_info *fbi;
1562 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1563 struct omapfb_plane_struct *plane;
1564 fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
1568 "unable to allocate memory for plane info\n");
1569 planes_cleanup(fbdev);
1574 plane->fbdev = fbdev;
1575 plane->info.mirror = def_mirror;
1576 fbdev->fb_info[i] = fbi;
1578 if ((r = fbinfo_init(fbdev, fbi)) < 0) {
1579 framebuffer_release(fbi);
1580 planes_cleanup(fbdev);
1583 plane->info.out_width = fbi->var.xres;
1584 plane->info.out_height = fbi->var.yres;
1590 * Free driver resources. Can be called to rollback an aborted initialization
1593 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
1599 for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
1600 unregister_framebuffer(fbdev->fb_info[i]);
1602 omapfb_unregister_sysfs(fbdev);
1604 fbdev->panel->disable(fbdev->panel);
1606 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1608 planes_cleanup(fbdev);
1610 ctrl_cleanup(fbdev);
1612 fbdev->panel->cleanup(fbdev->panel);
1614 dev_set_drvdata(fbdev->dev, NULL);
1617 /* nothing to free */
1624 static int omapfb_find_ctrl(struct omapfb_device *fbdev)
1626 struct omapfb_platform_data *conf;
1630 conf = fbdev->dev->platform_data;
1634 strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
1635 name[sizeof(name) - 1] = '\0';
1637 if (strcmp(name, "internal") == 0) {
1638 fbdev->ctrl = fbdev->int_ctrl;
1642 for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
1643 dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
1644 if (strcmp(ctrls[i]->name, name) == 0) {
1645 fbdev->ctrl = ctrls[i];
1650 if (fbdev->ctrl == NULL) {
1651 dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
1658 static void check_required_callbacks(struct omapfb_device *fbdev)
1660 #define _C(x) (fbdev->ctrl->x != NULL)
1661 #define _P(x) (fbdev->panel->x != NULL)
1662 BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
1663 BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
1664 _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
1665 _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
1672 * Called by LDM binding to probe and attach a new device.
1673 * Initialization sequence:
1674 * 1. allocate system omapfb_device structure
1675 * 2. select controller type according to platform configuration
1677 * 3. init LCD controller and LCD DMA
1678 * 4. init system fb_info structure for all planes
1679 * 5. setup video mode for first plane and enable it
1680 * 6. enable LCD panel
1681 * 7. register sysfs attributes
1682 * OMAPFB_ACTIVE: register system fb_info structure for all planes
1684 static int omapfb_do_probe(struct platform_device *pdev,
1685 struct lcd_panel *panel)
1687 struct omapfb_device *fbdev = NULL;
1689 unsigned long phz, hhz, vhz;
1696 if (pdev->num_resources != 0) {
1697 dev_err(&pdev->dev, "probed for an unknown device\n");
1702 if (pdev->dev.platform_data == NULL) {
1703 dev_err(&pdev->dev, "missing platform data\n");
1708 fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
1709 if (fbdev == NULL) {
1711 "unable to allocate memory for device info\n");
1717 fbdev->dev = &pdev->dev;
1718 fbdev->panel = panel;
1719 fbdev->dssdev = &omapdss_device;
1720 platform_set_drvdata(pdev, fbdev);
1722 mutex_init(&fbdev->rqueue_mutex);
1724 #ifdef CONFIG_ARCH_OMAP1
1725 fbdev->int_ctrl = &omap1_int_ctrl;
1726 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1727 fbdev->ext_if = &omap1_ext_if;
1730 fbdev->int_ctrl = &omap2_int_ctrl;
1731 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1732 fbdev->ext_if = &omap2_ext_if;
1735 if (omapfb_find_ctrl(fbdev) < 0) {
1737 "LCD controller not found, board not supported\n");
1742 r = fbdev->panel->init(fbdev->panel, fbdev);
1746 pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
1748 def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
1749 def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
1753 r = ctrl_init(fbdev);
1756 if (fbdev->ctrl->mmap != NULL)
1757 omapfb_ops.fb_mmap = omapfb_mmap;
1760 check_required_callbacks(fbdev);
1762 r = planes_init(fbdev);
1767 #ifdef CONFIG_FB_OMAP_DMA_TUNE
1768 /* Set DMA priority for EMIFF access to highest */
1769 if (cpu_class_is_omap1())
1770 omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
1773 r = ctrl_change_mode(fbdev->fb_info[0]);
1775 dev_err(fbdev->dev, "mode setting failed\n");
1779 /* GFX plane is enabled by default */
1780 r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
1784 omapfb_set_update_mode(fbdev, manual_update ?
1785 OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
1788 r = fbdev->panel->enable(fbdev->panel);
1793 r = omapfb_register_sysfs(fbdev);
1799 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1800 r = register_framebuffer(fbdev->fb_info[i]);
1803 "registering framebuffer %d failed\n", i);
1806 vram += fbdev->mem_desc.region[i].size;
1809 fbdev->state = OMAPFB_ACTIVE;
1811 panel = fbdev->panel;
1812 phz = panel->pixel_clock * 1000;
1813 hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
1814 vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
1818 pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
1819 vram, fbdev->mem_desc.region_cnt);
1820 pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
1821 "vfreq %lu.%lu Hz\n",
1822 phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
1827 omapfb_free_resources(fbdev, init_state);
1832 static int omapfb_probe(struct platform_device *pdev)
1836 BUG_ON(fbdev_pdev != NULL);
1838 r = platform_device_register(&omapdss_device);
1840 dev_err(&pdev->dev, "can't register omapdss device\n");
1844 /* Delay actual initialization until the LCD is registered */
1846 if (fbdev_panel != NULL)
1847 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1851 void omapfb_register_panel(struct lcd_panel *panel)
1853 BUG_ON(fbdev_panel != NULL);
1855 fbdev_panel = panel;
1856 if (fbdev_pdev != NULL)
1857 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1860 /* Called when the device is being detached from the driver */
1861 static int omapfb_remove(struct platform_device *pdev)
1863 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1864 enum omapfb_state saved_state = fbdev->state;
1866 /* FIXME: wait till completion of pending events */
1868 fbdev->state = OMAPFB_DISABLED;
1869 omapfb_free_resources(fbdev, saved_state);
1871 platform_device_unregister(&omapdss_device);
1872 fbdev->dssdev = NULL;
1878 static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
1880 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1883 omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
1888 static int omapfb_resume(struct platform_device *pdev)
1890 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1893 omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
1897 static struct platform_driver omapfb_driver = {
1898 .probe = omapfb_probe,
1899 .remove = omapfb_remove,
1900 .suspend = omapfb_suspend,
1901 .resume = omapfb_resume,
1903 .name = MODULE_NAME,
1904 .owner = THIS_MODULE,
1910 /* Process kernel command line parameters */
1911 static int __init omapfb_setup(char *options)
1913 char *this_opt = NULL;
1916 pr_debug("omapfb: options %s\n", options);
1918 if (!options || !*options)
1921 while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1922 if (!strncmp(this_opt, "accel", 5))
1924 else if (!strncmp(this_opt, "vram:", 5)) {
1927 vram = (simple_strtoul(this_opt + 5, &suffix, 0));
1928 switch (suffix[0]) {
1940 pr_debug("omapfb: invalid vram suffix %c\n",
1944 def_vram[def_vram_cnt++] = vram;
1946 else if (!strncmp(this_opt, "vxres:", 6))
1947 def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
1948 else if (!strncmp(this_opt, "vyres:", 6))
1949 def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
1950 else if (!strncmp(this_opt, "rotate:", 7))
1951 def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
1952 else if (!strncmp(this_opt, "mirror:", 7))
1953 def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
1954 else if (!strncmp(this_opt, "manual_update", 13))
1957 pr_debug("omapfb: invalid option\n");
1967 /* Register both the driver and the device */
1968 static int __init omapfb_init(void)
1973 if (fb_get_options("omapfb", &option))
1975 omapfb_setup(option);
1977 /* Register the driver with LDM */
1978 if (platform_driver_register(&omapfb_driver)) {
1979 pr_debug("failed to register omapfb driver\n");
1986 static void __exit omapfb_cleanup(void)
1988 platform_driver_unregister(&omapfb_driver);
1991 module_param_named(accel, def_accel, uint, 0664);
1992 module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
1993 module_param_named(vxres, def_vxres, long, 0664);
1994 module_param_named(vyres, def_vyres, long, 0664);
1995 module_param_named(rotate, def_rotate, uint, 0664);
1996 module_param_named(mirror, def_mirror, uint, 0664);
1997 module_param_named(manual_update, manual_update, bool, 0664);
1999 module_init(omapfb_init);
2000 module_exit(omapfb_cleanup);
2002 MODULE_DESCRIPTION("TI OMAP framebuffer driver");
2003 MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
2004 MODULE_LICENSE("GPL");