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/uaccess.h>
37 #define MODULE_NAME "omapfb"
39 static unsigned int def_accel;
40 static unsigned long def_vram[OMAPFB_PLANE_NUM];
41 static unsigned int def_vram_cnt;
42 static unsigned long def_vxres;
43 static unsigned long def_vyres;
44 static unsigned int def_rotate;
45 static unsigned int def_mirror;
47 #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
48 static int manual_update = 1;
50 static int manual_update;
53 static struct platform_device *fbdev_pdev;
54 static struct lcd_panel *fbdev_panel;
55 static struct omapfb_device *omapfb_dev;
57 struct caps_table_struct {
62 static struct caps_table_struct ctrl_caps[] = {
63 { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" },
64 { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" },
65 { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
66 { OMAPFB_CAPS_PLANE_SCALE, "scale plane" },
67 { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
68 { OMAPFB_CAPS_WINDOW_SCALE, "scale window" },
69 { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
70 { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" },
71 { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" },
74 static struct caps_table_struct color_caps[] = {
75 { 1 << OMAPFB_COLOR_RGB565, "RGB565", },
76 { 1 << OMAPFB_COLOR_YUV422, "YUV422", },
77 { 1 << OMAPFB_COLOR_YUV420, "YUV420", },
78 { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", },
79 { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", },
80 { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", },
81 { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", },
82 { 1 << OMAPFB_COLOR_RGB444, "RGB444", },
83 { 1 << OMAPFB_COLOR_YUY422, "YUY422", },
86 static void omapdss_release(struct device *dev)
90 /* dummy device for clocks */
91 static struct platform_device omapdss_device = {
95 .release = omapdss_release,
100 * ---------------------------------------------------------------------------
102 * ---------------------------------------------------------------------------
104 extern struct lcd_ctrl hwa742_ctrl;
105 extern struct lcd_ctrl blizzard_ctrl;
107 static const struct lcd_ctrl *ctrls[] = {
108 #ifdef CONFIG_ARCH_OMAP1
114 #ifdef CONFIG_FB_OMAP_LCDC_HWA742
117 #ifdef CONFIG_FB_OMAP_LCDC_BLIZZARD
122 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
123 #ifdef CONFIG_ARCH_OMAP1
124 extern struct lcd_ctrl_extif omap1_ext_if;
126 extern struct lcd_ctrl_extif omap2_ext_if;
130 static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
132 mutex_lock(&fbdev->rqueue_mutex);
135 static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
137 mutex_unlock(&fbdev->rqueue_mutex);
141 * ---------------------------------------------------------------------------
142 * LCD controller and LCD DMA
143 * ---------------------------------------------------------------------------
145 /* Lookup table to map elem size to elem type. */
146 static const int dma_elem_type[] = {
148 OMAP_DMA_DATA_TYPE_S8,
149 OMAP_DMA_DATA_TYPE_S16,
151 OMAP_DMA_DATA_TYPE_S32,
155 * Allocate resources needed for LCD controller and LCD DMA operations. Video
156 * memory is allocated from system memory according to the virtual display
157 * size, except if a bigger memory size is specified explicitly as a kernel
160 static int ctrl_init(struct omapfb_device *fbdev)
165 /* kernel/module vram parameters override boot tags/board config */
167 for (i = 0; i < def_vram_cnt; i++)
168 fbdev->mem_desc.region[i].size =
169 PAGE_ALIGN(def_vram[i]);
170 fbdev->mem_desc.region_cnt = i;
172 struct omapfb_platform_data *conf;
174 conf = fbdev->dev->platform_data;
175 fbdev->mem_desc = conf->mem_desc;
178 if (!fbdev->mem_desc.region_cnt) {
179 struct lcd_panel *panel = fbdev->panel;
181 int bpp = panel->bpp;
183 /* 12 bpp is packed in 16 bits */
186 def_size = def_vxres * def_vyres * bpp / 8;
187 fbdev->mem_desc.region_cnt = 1;
188 fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
190 r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
192 dev_err(fbdev->dev, "controller initialization failed (%d)\n",
198 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
199 dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
201 fbdev->mem_desc.region[i].paddr,
202 fbdev->mem_desc.region[i].vaddr,
203 fbdev->mem_desc.region[i].size);
209 static void ctrl_cleanup(struct omapfb_device *fbdev)
211 fbdev->ctrl->cleanup();
214 /* Must be called with fbdev->rqueue_mutex held. */
215 static int ctrl_change_mode(struct fb_info *fbi)
218 unsigned long offset;
219 struct omapfb_plane_struct *plane = fbi->par;
220 struct omapfb_device *fbdev = plane->fbdev;
221 struct fb_var_screeninfo *var = &fbi->var;
223 offset = var->yoffset * fbi->fix.line_length +
224 var->xoffset * var->bits_per_pixel / 8;
226 if (fbdev->ctrl->sync)
228 r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
229 offset, var->xres_virtual,
230 plane->info.pos_x, plane->info.pos_y,
231 var->xres, var->yres, plane->color_mode);
235 if (fbdev->ctrl->set_rotate != NULL) {
236 r = fbdev->ctrl->set_rotate(var->rotate);
241 if (fbdev->ctrl->set_scale != NULL)
242 r = fbdev->ctrl->set_scale(plane->idx,
243 var->xres, var->yres,
244 plane->info.out_width,
245 plane->info.out_height);
251 * ---------------------------------------------------------------------------
252 * fbdev framework callbacks and the ioctl interface
253 * ---------------------------------------------------------------------------
255 /* Called each time the omapfb device is opened */
256 static int omapfb_open(struct fb_info *info, int user)
261 static void omapfb_sync(struct fb_info *info);
263 /* Called when the omapfb device is closed. We make sure that any pending
264 * gfx DMA operations are ended, before we return. */
265 static int omapfb_release(struct fb_info *info, int user)
271 /* Store a single color palette entry into a pseudo palette or the hardware
272 * palette if one is available. For now we support only 16bpp and thus store
273 * the entry only to the pseudo palette.
275 static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
276 u_int blue, u_int transp, int update_hw_pal)
278 struct omapfb_plane_struct *plane = info->par;
279 struct omapfb_device *fbdev = plane->fbdev;
280 struct fb_var_screeninfo *var = &info->var;
283 switch (plane->color_mode) {
284 case OMAPFB_COLOR_YUV422:
285 case OMAPFB_COLOR_YUV420:
286 case OMAPFB_COLOR_YUY422:
289 case OMAPFB_COLOR_CLUT_8BPP:
290 case OMAPFB_COLOR_CLUT_4BPP:
291 case OMAPFB_COLOR_CLUT_2BPP:
292 case OMAPFB_COLOR_CLUT_1BPP:
293 if (fbdev->ctrl->setcolreg)
294 r = fbdev->ctrl->setcolreg(regno, red, green, blue,
295 transp, update_hw_pal);
297 case OMAPFB_COLOR_RGB565:
298 case OMAPFB_COLOR_RGB444:
309 pal = ((red >> (16 - var->red.length)) <<
311 ((green >> (16 - var->green.length)) <<
313 (blue >> (16 - var->blue.length));
314 ((u32 *)(info->pseudo_palette))[regno] = pal;
323 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
324 u_int transp, struct fb_info *info)
326 return _setcolreg(info, regno, red, green, blue, transp, 1);
329 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
332 u16 *red, *green, *blue, *transp;
338 transp = cmap->transp;
341 for (count = 0; count < cmap->len; count++) {
344 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
345 count == cmap->len - 1);
353 static int omapfb_update_full_screen(struct fb_info *fbi);
355 static int omapfb_blank(int blank, struct fb_info *fbi)
357 struct omapfb_plane_struct *plane = fbi->par;
358 struct omapfb_device *fbdev = plane->fbdev;
362 omapfb_rqueue_lock(fbdev);
364 case FB_BLANK_UNBLANK:
365 if (fbdev->state == OMAPFB_SUSPENDED) {
366 if (fbdev->ctrl->resume)
367 fbdev->ctrl->resume();
368 fbdev->panel->enable(fbdev->panel);
369 fbdev->state = OMAPFB_ACTIVE;
370 if (fbdev->ctrl->get_update_mode() ==
371 OMAPFB_MANUAL_UPDATE)
375 case FB_BLANK_POWERDOWN:
376 if (fbdev->state == OMAPFB_ACTIVE) {
377 fbdev->panel->disable(fbdev->panel);
378 if (fbdev->ctrl->suspend)
379 fbdev->ctrl->suspend();
380 fbdev->state = OMAPFB_SUSPENDED;
386 omapfb_rqueue_unlock(fbdev);
388 if (r == 0 && do_update)
389 r = omapfb_update_full_screen(fbi);
394 static void omapfb_sync(struct fb_info *fbi)
396 struct omapfb_plane_struct *plane = fbi->par;
397 struct omapfb_device *fbdev = plane->fbdev;
399 omapfb_rqueue_lock(fbdev);
400 if (fbdev->ctrl->sync)
402 omapfb_rqueue_unlock(fbdev);
406 * Set fb_info.fix fields and also updates fbdev.
407 * When calling this fb_info.var must be set up already.
409 static void set_fb_fix(struct fb_info *fbi, int from_init)
411 struct fb_fix_screeninfo *fix = &fbi->fix;
412 struct fb_var_screeninfo *var = &fbi->var;
413 struct omapfb_plane_struct *plane = fbi->par;
414 struct omapfb_mem_region *rg;
417 rg = &plane->fbdev->mem_desc.region[plane->idx];
418 fbi->screen_base = rg->vaddr;
421 mutex_lock(&fbi->mm_lock);
422 fix->smem_start = rg->paddr;
423 fix->smem_len = rg->size;
424 mutex_unlock(&fbi->mm_lock);
426 fix->smem_start = rg->paddr;
427 fix->smem_len = rg->size;
430 fix->type = FB_TYPE_PACKED_PIXELS;
431 bpp = var->bits_per_pixel;
433 fix->visual = FB_VISUAL_PSEUDOCOLOR;
434 else switch (var->bits_per_pixel) {
437 fix->visual = FB_VISUAL_TRUECOLOR;
438 /* 12bpp is stored in 16 bits */
445 fix->visual = FB_VISUAL_PSEUDOCOLOR;
448 fix->accel = FB_ACCEL_OMAP1610;
449 fix->line_length = var->xres_virtual * bpp / 8;
452 static int set_color_mode(struct omapfb_plane_struct *plane,
453 struct fb_var_screeninfo *var)
455 switch (var->nonstd) {
458 case OMAPFB_COLOR_YUV422:
459 var->bits_per_pixel = 16;
460 plane->color_mode = var->nonstd;
462 case OMAPFB_COLOR_YUV420:
463 var->bits_per_pixel = 12;
464 plane->color_mode = var->nonstd;
466 case OMAPFB_COLOR_YUY422:
467 var->bits_per_pixel = 16;
468 plane->color_mode = var->nonstd;
474 switch (var->bits_per_pixel) {
476 plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
479 plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
482 plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
485 plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
488 var->bits_per_pixel = 16;
489 plane->color_mode = OMAPFB_COLOR_RGB444;
492 plane->color_mode = OMAPFB_COLOR_RGB565;
500 * Check the values in var against our capabilities and in case of out of
501 * bound values try to adjust them.
503 static int set_fb_var(struct fb_info *fbi,
504 struct fb_var_screeninfo *var)
507 unsigned long max_frame_size;
508 unsigned long line_size;
509 int xres_min, xres_max;
510 int yres_min, yres_max;
511 struct omapfb_plane_struct *plane = fbi->par;
512 struct omapfb_device *fbdev = plane->fbdev;
513 struct lcd_panel *panel = fbdev->panel;
515 if (set_color_mode(plane, var) < 0)
518 bpp = var->bits_per_pixel;
519 if (plane->color_mode == OMAPFB_COLOR_RGB444)
522 switch (var->rotate) {
525 xres_min = OMAPFB_PLANE_XRES_MIN;
526 xres_max = panel->x_res;
527 yres_min = OMAPFB_PLANE_YRES_MIN;
528 yres_max = panel->y_res;
529 if (cpu_is_omap15xx()) {
530 var->xres = panel->x_res;
531 var->yres = panel->y_res;
536 xres_min = OMAPFB_PLANE_YRES_MIN;
537 xres_max = panel->y_res;
538 yres_min = OMAPFB_PLANE_XRES_MIN;
539 yres_max = panel->x_res;
540 if (cpu_is_omap15xx()) {
541 var->xres = panel->y_res;
542 var->yres = panel->x_res;
549 if (var->xres < xres_min)
550 var->xres = xres_min;
551 if (var->yres < yres_min)
552 var->yres = yres_min;
553 if (var->xres > xres_max)
554 var->xres = xres_max;
555 if (var->yres > yres_max)
556 var->yres = yres_max;
558 if (var->xres_virtual < var->xres)
559 var->xres_virtual = var->xres;
560 if (var->yres_virtual < var->yres)
561 var->yres_virtual = var->yres;
562 max_frame_size = fbdev->mem_desc.region[plane->idx].size;
563 line_size = var->xres_virtual * bpp / 8;
564 if (line_size * var->yres_virtual > max_frame_size) {
565 /* Try to keep yres_virtual first */
566 line_size = max_frame_size / var->yres_virtual;
567 var->xres_virtual = line_size * 8 / bpp;
568 if (var->xres_virtual < var->xres) {
569 /* Still doesn't fit. Shrink yres_virtual too */
570 var->xres_virtual = var->xres;
571 line_size = var->xres * bpp / 8;
572 var->yres_virtual = max_frame_size / line_size;
574 /* Recheck this, as the virtual size changed. */
575 if (var->xres_virtual < var->xres)
576 var->xres = var->xres_virtual;
577 if (var->yres_virtual < var->yres)
578 var->yres = var->yres_virtual;
579 if (var->xres < xres_min || var->yres < yres_min)
582 if (var->xres + var->xoffset > var->xres_virtual)
583 var->xoffset = var->xres_virtual - var->xres;
584 if (var->yres + var->yoffset > var->yres_virtual)
585 var->yoffset = var->yres_virtual - var->yres;
587 if (plane->color_mode == OMAPFB_COLOR_RGB444) {
588 var->red.offset = 8; var->red.length = 4;
589 var->red.msb_right = 0;
590 var->green.offset = 4; var->green.length = 4;
591 var->green.msb_right = 0;
592 var->blue.offset = 0; var->blue.length = 4;
593 var->blue.msb_right = 0;
595 var->red.offset = 11; var->red.length = 5;
596 var->red.msb_right = 0;
597 var->green.offset = 5; var->green.length = 6;
598 var->green.msb_right = 0;
599 var->blue.offset = 0; var->blue.length = 5;
600 var->blue.msb_right = 0;
607 /* pixclock in ps, the rest in pixclock */
608 var->pixclock = 10000000 / (panel->pixel_clock / 100);
609 var->left_margin = panel->hfp;
610 var->right_margin = panel->hbp;
611 var->upper_margin = panel->vfp;
612 var->lower_margin = panel->vbp;
613 var->hsync_len = panel->hsw;
614 var->vsync_len = panel->vsw;
616 /* TODO: get these from panel->config */
617 var->vmode = FB_VMODE_NONINTERLACED;
624 /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
625 static void omapfb_rotate(struct fb_info *fbi, int rotate)
627 struct omapfb_plane_struct *plane = fbi->par;
628 struct omapfb_device *fbdev = plane->fbdev;
630 omapfb_rqueue_lock(fbdev);
631 if (rotate != fbi->var.rotate) {
632 struct fb_var_screeninfo *new_var = &fbdev->new_var;
634 memcpy(new_var, &fbi->var, sizeof(*new_var));
635 new_var->rotate = rotate;
636 if (set_fb_var(fbi, new_var) == 0 &&
637 memcmp(new_var, &fbi->var, sizeof(*new_var))) {
638 memcpy(&fbi->var, new_var, sizeof(*new_var));
639 ctrl_change_mode(fbi);
642 omapfb_rqueue_unlock(fbdev);
646 * Set new x,y offsets in the virtual display for the visible area and switch
649 static int omapfb_pan_display(struct fb_var_screeninfo *var,
652 struct omapfb_plane_struct *plane = fbi->par;
653 struct omapfb_device *fbdev = plane->fbdev;
656 omapfb_rqueue_lock(fbdev);
657 if (var->xoffset != fbi->var.xoffset ||
658 var->yoffset != fbi->var.yoffset) {
659 struct fb_var_screeninfo *new_var = &fbdev->new_var;
661 memcpy(new_var, &fbi->var, sizeof(*new_var));
662 new_var->xoffset = var->xoffset;
663 new_var->yoffset = var->yoffset;
664 if (set_fb_var(fbi, new_var))
667 memcpy(&fbi->var, new_var, sizeof(*new_var));
668 ctrl_change_mode(fbi);
671 omapfb_rqueue_unlock(fbdev);
676 /* Set mirror to vertical axis and switch to the new mode. */
677 static int omapfb_mirror(struct fb_info *fbi, int mirror)
679 struct omapfb_plane_struct *plane = fbi->par;
680 struct omapfb_device *fbdev = plane->fbdev;
683 omapfb_rqueue_lock(fbdev);
684 mirror = mirror ? 1 : 0;
685 if (cpu_is_omap15xx())
687 else if (mirror != plane->info.mirror) {
688 plane->info.mirror = mirror;
689 r = ctrl_change_mode(fbi);
691 omapfb_rqueue_unlock(fbdev);
697 * Check values in var, try to adjust them in case of out of bound values if
698 * possible, or return error.
700 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
702 struct omapfb_plane_struct *plane = fbi->par;
703 struct omapfb_device *fbdev = plane->fbdev;
706 omapfb_rqueue_lock(fbdev);
707 if (fbdev->ctrl->sync != NULL)
709 r = set_fb_var(fbi, var);
710 omapfb_rqueue_unlock(fbdev);
716 * Switch to a new mode. The parameters for it has been check already by
719 static int omapfb_set_par(struct fb_info *fbi)
721 struct omapfb_plane_struct *plane = fbi->par;
722 struct omapfb_device *fbdev = plane->fbdev;
725 omapfb_rqueue_lock(fbdev);
727 r = ctrl_change_mode(fbi);
728 omapfb_rqueue_unlock(fbdev);
733 int omapfb_update_window_async(struct fb_info *fbi,
734 struct omapfb_update_window *win,
735 void (*callback)(void *),
739 struct omapfb_plane_struct *plane = fbi->par;
740 struct omapfb_device *fbdev = plane->fbdev;
741 struct fb_var_screeninfo *var = &fbi->var;
743 switch (var->rotate) {
746 xres = fbdev->panel->x_res;
747 yres = fbdev->panel->y_res;
751 xres = fbdev->panel->y_res;
752 yres = fbdev->panel->x_res;
758 if (win->x >= xres || win->y >= yres ||
759 win->out_x > xres || win->out_y > yres)
762 if (!fbdev->ctrl->update_window ||
763 fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
766 if (win->x + win->width > xres)
767 win->width = xres - win->x;
768 if (win->y + win->height > yres)
769 win->height = yres - win->y;
770 if (win->out_x + win->out_width > xres)
771 win->out_width = xres - win->out_x;
772 if (win->out_y + win->out_height > yres)
773 win->out_height = yres - win->out_y;
774 if (!win->width || !win->height || !win->out_width || !win->out_height)
777 return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
779 EXPORT_SYMBOL(omapfb_update_window_async);
781 static int omapfb_update_win(struct fb_info *fbi,
782 struct omapfb_update_window *win)
784 struct omapfb_plane_struct *plane = fbi->par;
787 omapfb_rqueue_lock(plane->fbdev);
788 ret = omapfb_update_window_async(fbi, win, NULL, NULL);
789 omapfb_rqueue_unlock(plane->fbdev);
794 static int omapfb_update_full_screen(struct fb_info *fbi)
796 struct omapfb_plane_struct *plane = fbi->par;
797 struct omapfb_device *fbdev = plane->fbdev;
798 struct omapfb_update_window win;
801 if (!fbdev->ctrl->update_window ||
802 fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
807 win.width = fbi->var.xres;
808 win.height = fbi->var.yres;
811 win.out_width = fbi->var.xres;
812 win.out_height = fbi->var.yres;
815 omapfb_rqueue_lock(fbdev);
816 r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
817 omapfb_rqueue_unlock(fbdev);
822 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
824 struct omapfb_plane_struct *plane = fbi->par;
825 struct omapfb_device *fbdev = plane->fbdev;
826 struct lcd_panel *panel = fbdev->panel;
827 struct omapfb_plane_info old_info;
830 if (pi->pos_x + pi->out_width > panel->x_res ||
831 pi->pos_y + pi->out_height > panel->y_res)
834 omapfb_rqueue_lock(fbdev);
835 if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
837 * This plane's memory was freed, can't enable it
838 * until it's reallocated.
843 old_info = plane->info;
846 r = ctrl_change_mode(fbi);
848 plane->info = old_info;
852 r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
854 plane->info = old_info;
858 omapfb_rqueue_unlock(fbdev);
862 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
864 struct omapfb_plane_struct *plane = fbi->par;
870 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
872 struct omapfb_plane_struct *plane = fbi->par;
873 struct omapfb_device *fbdev = plane->fbdev;
874 struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
878 if (fbdev->ctrl->setup_mem == NULL)
880 if (mi->type > OMAPFB_MEMTYPE_MAX)
883 size = PAGE_ALIGN(mi->size);
884 omapfb_rqueue_lock(fbdev);
885 if (plane->info.enabled) {
889 if (rg->size != size || rg->type != mi->type) {
890 struct fb_var_screeninfo *new_var = &fbdev->new_var;
891 unsigned long old_size = rg->size;
892 u8 old_type = rg->type;
898 * size == 0 is a special case, for which we
899 * don't check / adjust the screen parameters.
900 * This isn't a problem since the plane can't
901 * be reenabled unless its size is > 0.
903 if (old_size != size && size) {
905 memcpy(new_var, &fbi->var, sizeof(*new_var));
906 r = set_fb_var(fbi, new_var);
912 if (fbdev->ctrl->sync)
914 r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
916 /* Revert changes. */
923 if (old_size != size) {
925 memcpy(&fbi->var, new_var, sizeof(fbi->var));
929 * Set these explicitly to indicate that the
930 * plane memory is dealloce'd, the other
931 * screen parameters in var / fix are invalid.
933 mutex_lock(&fbi->mm_lock);
934 fbi->fix.smem_start = 0;
935 fbi->fix.smem_len = 0;
936 mutex_unlock(&fbi->mm_lock);
941 omapfb_rqueue_unlock(fbdev);
946 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
948 struct omapfb_plane_struct *plane = fbi->par;
949 struct omapfb_device *fbdev = plane->fbdev;
950 struct omapfb_mem_region *rg;
952 rg = &fbdev->mem_desc.region[plane->idx];
953 memset(mi, 0, sizeof(*mi));
960 static int omapfb_set_color_key(struct omapfb_device *fbdev,
961 struct omapfb_color_key *ck)
965 if (!fbdev->ctrl->set_color_key)
968 omapfb_rqueue_lock(fbdev);
969 r = fbdev->ctrl->set_color_key(ck);
970 omapfb_rqueue_unlock(fbdev);
975 static int omapfb_get_color_key(struct omapfb_device *fbdev,
976 struct omapfb_color_key *ck)
980 if (!fbdev->ctrl->get_color_key)
983 omapfb_rqueue_lock(fbdev);
984 r = fbdev->ctrl->get_color_key(ck);
985 omapfb_rqueue_unlock(fbdev);
990 static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
991 static int notifier_inited;
993 static void omapfb_init_notifier(void)
997 for (i = 0; i < OMAPFB_PLANE_NUM; i++)
998 BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
1001 int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
1002 omapfb_notifier_callback_t callback,
1003 void *callback_data)
1007 if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
1010 if (!notifier_inited) {
1011 omapfb_init_notifier();
1012 notifier_inited = 1;
1015 omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
1016 unsigned long, void *))callback;
1017 omapfb_nb->data = callback_data;
1018 r = blocking_notifier_chain_register(
1019 &omapfb_client_list[omapfb_nb->plane_idx],
1023 if (omapfb_dev != NULL &&
1024 omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
1025 omapfb_dev->ctrl->bind_client(omapfb_nb);
1030 EXPORT_SYMBOL(omapfb_register_client);
1032 int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
1034 return blocking_notifier_chain_unregister(
1035 &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
1037 EXPORT_SYMBOL(omapfb_unregister_client);
1039 void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
1043 if (!notifier_inited)
1044 /* no client registered yet */
1047 for (i = 0; i < OMAPFB_PLANE_NUM; i++)
1048 blocking_notifier_call_chain(&omapfb_client_list[i], event,
1051 EXPORT_SYMBOL(omapfb_notify_clients);
1053 static int omapfb_set_update_mode(struct omapfb_device *fbdev,
1054 enum omapfb_update_mode mode)
1058 omapfb_rqueue_lock(fbdev);
1059 r = fbdev->ctrl->set_update_mode(mode);
1060 omapfb_rqueue_unlock(fbdev);
1065 static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
1069 omapfb_rqueue_lock(fbdev);
1070 r = fbdev->ctrl->get_update_mode();
1071 omapfb_rqueue_unlock(fbdev);
1076 static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
1077 struct omapfb_caps *caps)
1079 memset(caps, 0, sizeof(*caps));
1080 fbdev->ctrl->get_caps(plane, caps);
1081 caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
1084 /* For lcd testing */
1085 void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
1087 omapfb_rqueue_lock(fbdev);
1088 *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
1089 if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
1090 struct omapfb_update_window win;
1092 memset(&win, 0, sizeof(win));
1097 fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
1099 omapfb_rqueue_unlock(fbdev);
1101 EXPORT_SYMBOL(omapfb_write_first_pixel);
1104 * Ioctl interface. Part of the kernel mode frame buffer API is duplicated
1105 * here to be accessible by user mode code.
1107 static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
1110 struct omapfb_plane_struct *plane = fbi->par;
1111 struct omapfb_device *fbdev = plane->fbdev;
1112 struct fb_ops *ops = fbi->fbops;
1114 struct omapfb_update_window update_window;
1115 struct omapfb_plane_info plane_info;
1116 struct omapfb_mem_info mem_info;
1117 struct omapfb_color_key color_key;
1118 enum omapfb_update_mode update_mode;
1119 struct omapfb_caps caps;
1120 unsigned int mirror;
1129 if (get_user(p.mirror, (int __user *)arg))
1132 omapfb_mirror(fbi, p.mirror);
1134 case OMAPFB_SYNC_GFX:
1139 case OMAPFB_SET_UPDATE_MODE:
1140 if (get_user(p.update_mode, (int __user *)arg))
1143 r = omapfb_set_update_mode(fbdev, p.update_mode);
1145 case OMAPFB_GET_UPDATE_MODE:
1146 p.update_mode = omapfb_get_update_mode(fbdev);
1147 if (put_user(p.update_mode,
1148 (enum omapfb_update_mode __user *)arg))
1151 case OMAPFB_UPDATE_WINDOW_OLD:
1152 if (copy_from_user(&p.update_window, (void __user *)arg,
1153 sizeof(struct omapfb_update_window_old)))
1156 struct omapfb_update_window *u = &p.update_window;
1159 u->out_width = u->width;
1160 u->out_height = u->height;
1161 memset(u->reserved, 0, sizeof(u->reserved));
1162 r = omapfb_update_win(fbi, u);
1165 case OMAPFB_UPDATE_WINDOW:
1166 if (copy_from_user(&p.update_window, (void __user *)arg,
1167 sizeof(p.update_window)))
1170 r = omapfb_update_win(fbi, &p.update_window);
1172 case OMAPFB_SETUP_PLANE:
1173 if (copy_from_user(&p.plane_info, (void __user *)arg,
1174 sizeof(p.plane_info)))
1177 r = omapfb_setup_plane(fbi, &p.plane_info);
1179 case OMAPFB_QUERY_PLANE:
1180 if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
1182 if (copy_to_user((void __user *)arg, &p.plane_info,
1183 sizeof(p.plane_info)))
1186 case OMAPFB_SETUP_MEM:
1187 if (copy_from_user(&p.mem_info, (void __user *)arg,
1188 sizeof(p.mem_info)))
1191 r = omapfb_setup_mem(fbi, &p.mem_info);
1193 case OMAPFB_QUERY_MEM:
1194 if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
1196 if (copy_to_user((void __user *)arg, &p.mem_info,
1197 sizeof(p.mem_info)))
1200 case OMAPFB_SET_COLOR_KEY:
1201 if (copy_from_user(&p.color_key, (void __user *)arg,
1202 sizeof(p.color_key)))
1205 r = omapfb_set_color_key(fbdev, &p.color_key);
1207 case OMAPFB_GET_COLOR_KEY:
1208 if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
1210 if (copy_to_user((void __user *)arg, &p.color_key,
1211 sizeof(p.color_key)))
1214 case OMAPFB_GET_CAPS:
1215 omapfb_get_caps(fbdev, plane->idx, &p.caps);
1216 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
1219 case OMAPFB_LCD_TEST:
1223 if (get_user(test_num, (int __user *)arg)) {
1227 if (!fbdev->panel->run_test) {
1231 r = fbdev->panel->run_test(fbdev->panel, test_num);
1234 case OMAPFB_CTRL_TEST:
1238 if (get_user(test_num, (int __user *)arg)) {
1242 if (!fbdev->ctrl->run_test) {
1246 r = fbdev->ctrl->run_test(test_num);
1256 static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1258 struct omapfb_plane_struct *plane = info->par;
1259 struct omapfb_device *fbdev = plane->fbdev;
1262 omapfb_rqueue_lock(fbdev);
1263 r = fbdev->ctrl->mmap(info, vma);
1264 omapfb_rqueue_unlock(fbdev);
1270 * Callback table for the frame buffer framework. Some of these pointers
1271 * will be changed according to the current setting of fb_info->accel_flags.
1273 static struct fb_ops omapfb_ops = {
1274 .owner = THIS_MODULE,
1275 .fb_open = omapfb_open,
1276 .fb_release = omapfb_release,
1277 .fb_setcolreg = omapfb_setcolreg,
1278 .fb_setcmap = omapfb_setcmap,
1279 .fb_fillrect = cfb_fillrect,
1280 .fb_copyarea = cfb_copyarea,
1281 .fb_imageblit = cfb_imageblit,
1282 .fb_blank = omapfb_blank,
1283 .fb_ioctl = omapfb_ioctl,
1284 .fb_check_var = omapfb_check_var,
1285 .fb_set_par = omapfb_set_par,
1286 .fb_rotate = omapfb_rotate,
1287 .fb_pan_display = omapfb_pan_display,
1291 * ---------------------------------------------------------------------------
1293 * ---------------------------------------------------------------------------
1295 /* omapfbX sysfs entries */
1296 static ssize_t omapfb_show_caps_num(struct device *dev,
1297 struct device_attribute *attr, char *buf)
1299 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1302 struct omapfb_caps caps;
1306 while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1307 omapfb_get_caps(fbdev, plane, &caps);
1308 size += snprintf(&buf[size], PAGE_SIZE - size,
1309 "plane#%d %#010x %#010x %#010x\n",
1310 plane, caps.ctrl, caps.plane_color, caps.wnd_color);
1316 static ssize_t omapfb_show_caps_text(struct device *dev,
1317 struct device_attribute *attr, char *buf)
1319 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1321 struct omapfb_caps caps;
1327 while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1328 omapfb_get_caps(fbdev, plane, &caps);
1329 size += snprintf(&buf[size], PAGE_SIZE - size,
1330 "plane#%d:\n", plane);
1331 for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
1332 size < PAGE_SIZE; i++) {
1333 if (ctrl_caps[i].flag & caps.ctrl)
1334 size += snprintf(&buf[size], PAGE_SIZE - size,
1335 " %s\n", ctrl_caps[i].name);
1337 size += snprintf(&buf[size], PAGE_SIZE - size,
1338 " plane colors:\n");
1339 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1340 size < PAGE_SIZE; i++) {
1341 if (color_caps[i].flag & caps.plane_color)
1342 size += snprintf(&buf[size], PAGE_SIZE - size,
1343 " %s\n", color_caps[i].name);
1345 size += snprintf(&buf[size], PAGE_SIZE - size,
1346 " window colors:\n");
1347 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1348 size < PAGE_SIZE; i++) {
1349 if (color_caps[i].flag & caps.wnd_color)
1350 size += snprintf(&buf[size], PAGE_SIZE - size,
1351 " %s\n", color_caps[i].name);
1359 static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
1360 static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
1362 /* panel sysfs entries */
1363 static ssize_t omapfb_show_panel_name(struct device *dev,
1364 struct device_attribute *attr, char *buf)
1366 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1368 return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
1371 static ssize_t omapfb_show_bklight_level(struct device *dev,
1372 struct device_attribute *attr,
1375 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1378 if (fbdev->panel->get_bklight_level) {
1379 r = snprintf(buf, PAGE_SIZE, "%d\n",
1380 fbdev->panel->get_bklight_level(fbdev->panel));
1386 static ssize_t omapfb_store_bklight_level(struct device *dev,
1387 struct device_attribute *attr,
1388 const char *buf, size_t size)
1390 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1393 if (fbdev->panel->set_bklight_level) {
1396 if (sscanf(buf, "%10d", &level) == 1) {
1397 r = fbdev->panel->set_bklight_level(fbdev->panel,
1403 return r ? r : size;
1406 static ssize_t omapfb_show_bklight_max(struct device *dev,
1407 struct device_attribute *attr, char *buf)
1409 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1412 if (fbdev->panel->get_bklight_level) {
1413 r = snprintf(buf, PAGE_SIZE, "%d\n",
1414 fbdev->panel->get_bklight_max(fbdev->panel));
1420 static struct device_attribute dev_attr_panel_name =
1421 __ATTR(name, 0444, omapfb_show_panel_name, NULL);
1422 static DEVICE_ATTR(backlight_level, 0664,
1423 omapfb_show_bklight_level, omapfb_store_bklight_level);
1424 static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
1426 static struct attribute *panel_attrs[] = {
1427 &dev_attr_panel_name.attr,
1428 &dev_attr_backlight_level.attr,
1429 &dev_attr_backlight_max.attr,
1433 static struct attribute_group panel_attr_grp = {
1435 .attrs = panel_attrs,
1438 /* ctrl sysfs entries */
1439 static ssize_t omapfb_show_ctrl_name(struct device *dev,
1440 struct device_attribute *attr, char *buf)
1442 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1444 return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
1447 static struct device_attribute dev_attr_ctrl_name =
1448 __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
1450 static struct attribute *ctrl_attrs[] = {
1451 &dev_attr_ctrl_name.attr,
1455 static struct attribute_group ctrl_attr_grp = {
1457 .attrs = ctrl_attrs,
1460 static int omapfb_register_sysfs(struct omapfb_device *fbdev)
1464 if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
1467 if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
1470 if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
1473 if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
1478 sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1480 device_remove_file(fbdev->dev, &dev_attr_caps_text);
1482 device_remove_file(fbdev->dev, &dev_attr_caps_num);
1484 dev_err(fbdev->dev, "unable to register sysfs interface\n");
1488 static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
1490 sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
1491 sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1492 device_remove_file(fbdev->dev, &dev_attr_caps_num);
1493 device_remove_file(fbdev->dev, &dev_attr_caps_text);
1497 * ---------------------------------------------------------------------------
1499 * ---------------------------------------------------------------------------
1501 /* Initialize system fb_info object and set the default video mode.
1502 * The frame buffer memory already allocated by lcddma_init
1504 static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
1506 struct fb_var_screeninfo *var = &info->var;
1507 struct fb_fix_screeninfo *fix = &info->fix;
1510 info->fbops = &omapfb_ops;
1511 info->flags = FBINFO_FLAG_DEFAULT;
1513 strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
1515 info->pseudo_palette = fbdev->pseudo_palette;
1517 var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0;
1518 var->xres = def_vxres;
1519 var->yres = def_vyres;
1520 var->xres_virtual = def_vxres;
1521 var->yres_virtual = def_vyres;
1522 var->rotate = def_rotate;
1523 var->bits_per_pixel = fbdev->panel->bpp;
1525 set_fb_var(info, var);
1526 set_fb_fix(info, 1);
1528 r = fb_alloc_cmap(&info->cmap, 16, 0);
1530 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1535 /* Release the fb_info object */
1536 static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
1538 fb_dealloc_cmap(&fbi->cmap);
1541 static void planes_cleanup(struct omapfb_device *fbdev)
1545 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1546 if (fbdev->fb_info[i] == NULL)
1548 fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
1549 framebuffer_release(fbdev->fb_info[i]);
1553 static int planes_init(struct omapfb_device *fbdev)
1555 struct fb_info *fbi;
1559 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1560 struct omapfb_plane_struct *plane;
1561 fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
1565 "unable to allocate memory for plane info\n");
1566 planes_cleanup(fbdev);
1571 plane->fbdev = fbdev;
1572 plane->info.mirror = def_mirror;
1573 fbdev->fb_info[i] = fbi;
1575 if ((r = fbinfo_init(fbdev, fbi)) < 0) {
1576 framebuffer_release(fbi);
1577 planes_cleanup(fbdev);
1580 plane->info.out_width = fbi->var.xres;
1581 plane->info.out_height = fbi->var.yres;
1587 * Free driver resources. Can be called to rollback an aborted initialization
1590 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
1596 for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
1597 unregister_framebuffer(fbdev->fb_info[i]);
1599 omapfb_unregister_sysfs(fbdev);
1601 fbdev->panel->disable(fbdev->panel);
1603 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1605 planes_cleanup(fbdev);
1607 ctrl_cleanup(fbdev);
1609 fbdev->panel->cleanup(fbdev->panel);
1611 dev_set_drvdata(fbdev->dev, NULL);
1614 /* nothing to free */
1621 static int omapfb_find_ctrl(struct omapfb_device *fbdev)
1623 struct omapfb_platform_data *conf;
1627 conf = fbdev->dev->platform_data;
1631 strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
1632 name[sizeof(name) - 1] = '\0';
1634 if (strcmp(name, "internal") == 0) {
1635 fbdev->ctrl = fbdev->int_ctrl;
1639 for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
1640 dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
1641 if (strcmp(ctrls[i]->name, name) == 0) {
1642 fbdev->ctrl = ctrls[i];
1647 if (fbdev->ctrl == NULL) {
1648 dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
1655 static void check_required_callbacks(struct omapfb_device *fbdev)
1657 #define _C(x) (fbdev->ctrl->x != NULL)
1658 #define _P(x) (fbdev->panel->x != NULL)
1659 BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
1660 BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
1661 _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
1662 _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
1669 * Called by LDM binding to probe and attach a new device.
1670 * Initialization sequence:
1671 * 1. allocate system omapfb_device structure
1672 * 2. select controller type according to platform configuration
1674 * 3. init LCD controller and LCD DMA
1675 * 4. init system fb_info structure for all planes
1676 * 5. setup video mode for first plane and enable it
1677 * 6. enable LCD panel
1678 * 7. register sysfs attributes
1679 * OMAPFB_ACTIVE: register system fb_info structure for all planes
1681 static int omapfb_do_probe(struct platform_device *pdev,
1682 struct lcd_panel *panel)
1684 struct omapfb_device *fbdev = NULL;
1686 unsigned long phz, hhz, vhz;
1693 if (pdev->num_resources != 0) {
1694 dev_err(&pdev->dev, "probed for an unknown device\n");
1699 if (pdev->dev.platform_data == NULL) {
1700 dev_err(&pdev->dev, "missing platform data\n");
1705 fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
1706 if (fbdev == NULL) {
1708 "unable to allocate memory for device info\n");
1714 fbdev->dev = &pdev->dev;
1715 fbdev->panel = panel;
1716 fbdev->dssdev = &omapdss_device;
1717 platform_set_drvdata(pdev, fbdev);
1719 mutex_init(&fbdev->rqueue_mutex);
1721 #ifdef CONFIG_ARCH_OMAP1
1722 fbdev->int_ctrl = &omap1_int_ctrl;
1723 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1724 fbdev->ext_if = &omap1_ext_if;
1727 fbdev->int_ctrl = &omap2_int_ctrl;
1728 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1729 fbdev->ext_if = &omap2_ext_if;
1732 if (omapfb_find_ctrl(fbdev) < 0) {
1734 "LCD controller not found, board not supported\n");
1739 r = fbdev->panel->init(fbdev->panel, fbdev);
1743 pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
1745 def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
1746 def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
1750 r = ctrl_init(fbdev);
1753 if (fbdev->ctrl->mmap != NULL)
1754 omapfb_ops.fb_mmap = omapfb_mmap;
1757 check_required_callbacks(fbdev);
1759 r = planes_init(fbdev);
1764 #ifdef CONFIG_FB_OMAP_DMA_TUNE
1765 /* Set DMA priority for EMIFF access to highest */
1766 if (cpu_class_is_omap1())
1767 omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
1770 r = ctrl_change_mode(fbdev->fb_info[0]);
1772 dev_err(fbdev->dev, "mode setting failed\n");
1776 /* GFX plane is enabled by default */
1777 r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
1781 omapfb_set_update_mode(fbdev, manual_update ?
1782 OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
1785 r = fbdev->panel->enable(fbdev->panel);
1790 r = omapfb_register_sysfs(fbdev);
1796 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1797 r = register_framebuffer(fbdev->fb_info[i]);
1800 "registering framebuffer %d failed\n", i);
1803 vram += fbdev->mem_desc.region[i].size;
1806 fbdev->state = OMAPFB_ACTIVE;
1808 panel = fbdev->panel;
1809 phz = panel->pixel_clock * 1000;
1810 hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
1811 vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
1815 pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
1816 vram, fbdev->mem_desc.region_cnt);
1817 pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
1818 "vfreq %lu.%lu Hz\n",
1819 phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
1824 omapfb_free_resources(fbdev, init_state);
1829 static int omapfb_probe(struct platform_device *pdev)
1833 BUG_ON(fbdev_pdev != NULL);
1835 r = platform_device_register(&omapdss_device);
1837 dev_err(&pdev->dev, "can't register omapdss device\n");
1841 /* Delay actual initialization until the LCD is registered */
1843 if (fbdev_panel != NULL)
1844 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1848 void omapfb_register_panel(struct lcd_panel *panel)
1850 BUG_ON(fbdev_panel != NULL);
1852 fbdev_panel = panel;
1853 if (fbdev_pdev != NULL)
1854 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1857 /* Called when the device is being detached from the driver */
1858 static int omapfb_remove(struct platform_device *pdev)
1860 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1861 enum omapfb_state saved_state = fbdev->state;
1863 /* FIXME: wait till completion of pending events */
1865 fbdev->state = OMAPFB_DISABLED;
1866 omapfb_free_resources(fbdev, saved_state);
1868 platform_device_unregister(&omapdss_device);
1869 fbdev->dssdev = NULL;
1875 static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
1877 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1880 omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
1885 static int omapfb_resume(struct platform_device *pdev)
1887 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1890 omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
1894 static struct platform_driver omapfb_driver = {
1895 .probe = omapfb_probe,
1896 .remove = omapfb_remove,
1897 .suspend = omapfb_suspend,
1898 .resume = omapfb_resume,
1900 .name = MODULE_NAME,
1901 .owner = THIS_MODULE,
1907 /* Process kernel command line parameters */
1908 static int __init omapfb_setup(char *options)
1910 char *this_opt = NULL;
1913 pr_debug("omapfb: options %s\n", options);
1915 if (!options || !*options)
1918 while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1919 if (!strncmp(this_opt, "accel", 5))
1921 else if (!strncmp(this_opt, "vram:", 5)) {
1924 vram = (simple_strtoul(this_opt + 5, &suffix, 0));
1925 switch (suffix[0]) {
1937 pr_debug("omapfb: invalid vram suffix %c\n",
1941 def_vram[def_vram_cnt++] = vram;
1943 else if (!strncmp(this_opt, "vxres:", 6))
1944 def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
1945 else if (!strncmp(this_opt, "vyres:", 6))
1946 def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
1947 else if (!strncmp(this_opt, "rotate:", 7))
1948 def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
1949 else if (!strncmp(this_opt, "mirror:", 7))
1950 def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
1951 else if (!strncmp(this_opt, "manual_update", 13))
1954 pr_debug("omapfb: invalid option\n");
1964 /* Register both the driver and the device */
1965 static int __init omapfb_init(void)
1970 if (fb_get_options("omapfb", &option))
1972 omapfb_setup(option);
1974 /* Register the driver with LDM */
1975 if (platform_driver_register(&omapfb_driver)) {
1976 pr_debug("failed to register omapfb driver\n");
1983 static void __exit omapfb_cleanup(void)
1985 platform_driver_unregister(&omapfb_driver);
1988 module_param_named(accel, def_accel, uint, 0664);
1989 module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
1990 module_param_named(vxres, def_vxres, long, 0664);
1991 module_param_named(vyres, def_vyres, long, 0664);
1992 module_param_named(rotate, def_rotate, uint, 0664);
1993 module_param_named(mirror, def_mirror, uint, 0664);
1994 module_param_named(manual_update, manual_update, bool, 0664);
1996 module_init(omapfb_init);
1997 module_exit(omapfb_cleanup);
1999 MODULE_DESCRIPTION("TI OMAP framebuffer driver");
2000 MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
2001 MODULE_LICENSE("GPL");