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>
33 #include <linux/omap-dma.h>
35 #include <mach/hardware.h>
40 #define MODULE_NAME "omapfb"
42 static unsigned int def_accel;
43 static unsigned long def_vram[OMAPFB_PLANE_NUM];
44 static unsigned int def_vram_cnt;
45 static unsigned long def_vxres;
46 static unsigned long def_vyres;
47 static unsigned int def_rotate;
48 static unsigned int def_mirror;
50 #ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
51 static bool manual_update = 1;
53 static bool manual_update;
56 static struct platform_device *fbdev_pdev;
57 static struct lcd_panel *fbdev_panel;
58 static struct omapfb_device *omapfb_dev;
60 struct caps_table_struct {
65 static struct caps_table_struct ctrl_caps[] = {
66 { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" },
67 { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" },
68 { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
69 { OMAPFB_CAPS_PLANE_SCALE, "scale plane" },
70 { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
71 { OMAPFB_CAPS_WINDOW_SCALE, "scale window" },
72 { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
73 { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" },
74 { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" },
77 static struct caps_table_struct color_caps[] = {
78 { 1 << OMAPFB_COLOR_RGB565, "RGB565", },
79 { 1 << OMAPFB_COLOR_YUV422, "YUV422", },
80 { 1 << OMAPFB_COLOR_YUV420, "YUV420", },
81 { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", },
82 { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", },
83 { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", },
84 { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", },
85 { 1 << OMAPFB_COLOR_RGB444, "RGB444", },
86 { 1 << OMAPFB_COLOR_YUY422, "YUY422", },
89 static void omapdss_release(struct device *dev)
93 /* dummy device for clocks */
94 static struct platform_device omapdss_device = {
95 .name = "omapdss_dss",
98 .release = omapdss_release,
103 * ---------------------------------------------------------------------------
105 * ---------------------------------------------------------------------------
107 extern struct lcd_ctrl hwa742_ctrl;
109 static const struct lcd_ctrl *ctrls[] = {
112 #ifdef CONFIG_FB_OMAP_LCDC_HWA742
117 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
118 extern struct lcd_ctrl_extif omap1_ext_if;
121 static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
123 mutex_lock(&fbdev->rqueue_mutex);
126 static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
128 mutex_unlock(&fbdev->rqueue_mutex);
132 * ---------------------------------------------------------------------------
133 * LCD controller and LCD DMA
134 * ---------------------------------------------------------------------------
137 * Allocate resources needed for LCD controller and LCD DMA operations. Video
138 * memory is allocated from system memory according to the virtual display
139 * size, except if a bigger memory size is specified explicitly as a kernel
142 static int ctrl_init(struct omapfb_device *fbdev)
147 /* kernel/module vram parameters override boot tags/board config */
149 for (i = 0; i < def_vram_cnt; i++)
150 fbdev->mem_desc.region[i].size =
151 PAGE_ALIGN(def_vram[i]);
152 fbdev->mem_desc.region_cnt = i;
155 if (!fbdev->mem_desc.region_cnt) {
156 struct lcd_panel *panel = fbdev->panel;
158 int bpp = panel->bpp;
160 /* 12 bpp is packed in 16 bits */
163 def_size = def_vxres * def_vyres * bpp / 8;
164 fbdev->mem_desc.region_cnt = 1;
165 fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
167 r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
169 dev_err(fbdev->dev, "controller initialization failed (%d)\n",
175 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
176 dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
178 fbdev->mem_desc.region[i].paddr,
179 fbdev->mem_desc.region[i].vaddr,
180 fbdev->mem_desc.region[i].size);
186 static void ctrl_cleanup(struct omapfb_device *fbdev)
188 fbdev->ctrl->cleanup();
191 /* Must be called with fbdev->rqueue_mutex held. */
192 static int ctrl_change_mode(struct fb_info *fbi)
195 unsigned long offset;
196 struct omapfb_plane_struct *plane = fbi->par;
197 struct omapfb_device *fbdev = plane->fbdev;
198 struct fb_var_screeninfo *var = &fbi->var;
200 offset = var->yoffset * fbi->fix.line_length +
201 var->xoffset * var->bits_per_pixel / 8;
203 if (fbdev->ctrl->sync)
205 r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
206 offset, var->xres_virtual,
207 plane->info.pos_x, plane->info.pos_y,
208 var->xres, var->yres, plane->color_mode);
212 if (fbdev->ctrl->set_rotate != NULL) {
213 r = fbdev->ctrl->set_rotate(var->rotate);
218 if (fbdev->ctrl->set_scale != NULL)
219 r = fbdev->ctrl->set_scale(plane->idx,
220 var->xres, var->yres,
221 plane->info.out_width,
222 plane->info.out_height);
228 * ---------------------------------------------------------------------------
229 * fbdev framework callbacks and the ioctl interface
230 * ---------------------------------------------------------------------------
232 /* Called each time the omapfb device is opened */
233 static int omapfb_open(struct fb_info *info, int user)
238 static void omapfb_sync(struct fb_info *info);
240 /* Called when the omapfb device is closed. We make sure that any pending
241 * gfx DMA operations are ended, before we return. */
242 static int omapfb_release(struct fb_info *info, int user)
248 /* Store a single color palette entry into a pseudo palette or the hardware
249 * palette if one is available. For now we support only 16bpp and thus store
250 * the entry only to the pseudo palette.
252 static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
253 u_int blue, u_int transp, int update_hw_pal)
255 struct omapfb_plane_struct *plane = info->par;
256 struct omapfb_device *fbdev = plane->fbdev;
257 struct fb_var_screeninfo *var = &info->var;
260 switch (plane->color_mode) {
261 case OMAPFB_COLOR_YUV422:
262 case OMAPFB_COLOR_YUV420:
263 case OMAPFB_COLOR_YUY422:
266 case OMAPFB_COLOR_CLUT_8BPP:
267 case OMAPFB_COLOR_CLUT_4BPP:
268 case OMAPFB_COLOR_CLUT_2BPP:
269 case OMAPFB_COLOR_CLUT_1BPP:
270 if (fbdev->ctrl->setcolreg)
271 r = fbdev->ctrl->setcolreg(regno, red, green, blue,
272 transp, update_hw_pal);
274 case OMAPFB_COLOR_RGB565:
275 case OMAPFB_COLOR_RGB444:
281 pal = ((red >> (16 - var->red.length)) <<
283 ((green >> (16 - var->green.length)) <<
285 (blue >> (16 - var->blue.length));
286 ((u32 *)(info->pseudo_palette))[regno] = pal;
295 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
296 u_int transp, struct fb_info *info)
298 return _setcolreg(info, regno, red, green, blue, transp, 1);
301 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
304 u16 *red, *green, *blue, *transp;
310 transp = cmap->transp;
313 for (count = 0; count < cmap->len; count++) {
316 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
317 count == cmap->len - 1);
325 static int omapfb_update_full_screen(struct fb_info *fbi);
327 static int omapfb_blank(int blank, struct fb_info *fbi)
329 struct omapfb_plane_struct *plane = fbi->par;
330 struct omapfb_device *fbdev = plane->fbdev;
334 omapfb_rqueue_lock(fbdev);
336 case FB_BLANK_UNBLANK:
337 if (fbdev->state == OMAPFB_SUSPENDED) {
338 if (fbdev->ctrl->resume)
339 fbdev->ctrl->resume();
340 fbdev->panel->enable(fbdev->panel);
341 fbdev->state = OMAPFB_ACTIVE;
342 if (fbdev->ctrl->get_update_mode() ==
343 OMAPFB_MANUAL_UPDATE)
347 case FB_BLANK_POWERDOWN:
348 if (fbdev->state == OMAPFB_ACTIVE) {
349 fbdev->panel->disable(fbdev->panel);
350 if (fbdev->ctrl->suspend)
351 fbdev->ctrl->suspend();
352 fbdev->state = OMAPFB_SUSPENDED;
358 omapfb_rqueue_unlock(fbdev);
360 if (r == 0 && do_update)
361 r = omapfb_update_full_screen(fbi);
366 static void omapfb_sync(struct fb_info *fbi)
368 struct omapfb_plane_struct *plane = fbi->par;
369 struct omapfb_device *fbdev = plane->fbdev;
371 omapfb_rqueue_lock(fbdev);
372 if (fbdev->ctrl->sync)
374 omapfb_rqueue_unlock(fbdev);
378 * Set fb_info.fix fields and also updates fbdev.
379 * When calling this fb_info.var must be set up already.
381 static void set_fb_fix(struct fb_info *fbi, int from_init)
383 struct fb_fix_screeninfo *fix = &fbi->fix;
384 struct fb_var_screeninfo *var = &fbi->var;
385 struct omapfb_plane_struct *plane = fbi->par;
386 struct omapfb_mem_region *rg;
389 rg = &plane->fbdev->mem_desc.region[plane->idx];
390 fbi->screen_base = rg->vaddr;
393 mutex_lock(&fbi->mm_lock);
394 fix->smem_start = rg->paddr;
395 fix->smem_len = rg->size;
396 mutex_unlock(&fbi->mm_lock);
398 fix->smem_start = rg->paddr;
399 fix->smem_len = rg->size;
402 fix->type = FB_TYPE_PACKED_PIXELS;
403 bpp = var->bits_per_pixel;
405 fix->visual = FB_VISUAL_PSEUDOCOLOR;
406 else switch (var->bits_per_pixel) {
409 fix->visual = FB_VISUAL_TRUECOLOR;
410 /* 12bpp is stored in 16 bits */
417 fix->visual = FB_VISUAL_PSEUDOCOLOR;
420 fix->accel = FB_ACCEL_OMAP1610;
421 fix->line_length = var->xres_virtual * bpp / 8;
424 static int set_color_mode(struct omapfb_plane_struct *plane,
425 struct fb_var_screeninfo *var)
427 switch (var->nonstd) {
430 case OMAPFB_COLOR_YUV422:
431 var->bits_per_pixel = 16;
432 plane->color_mode = var->nonstd;
434 case OMAPFB_COLOR_YUV420:
435 var->bits_per_pixel = 12;
436 plane->color_mode = var->nonstd;
438 case OMAPFB_COLOR_YUY422:
439 var->bits_per_pixel = 16;
440 plane->color_mode = var->nonstd;
446 switch (var->bits_per_pixel) {
448 plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
451 plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
454 plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
457 plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
460 var->bits_per_pixel = 16;
462 if (plane->fbdev->panel->bpp == 12)
463 plane->color_mode = OMAPFB_COLOR_RGB444;
465 plane->color_mode = OMAPFB_COLOR_RGB565;
473 * Check the values in var against our capabilities and in case of out of
474 * bound values try to adjust them.
476 static int set_fb_var(struct fb_info *fbi,
477 struct fb_var_screeninfo *var)
480 unsigned long max_frame_size;
481 unsigned long line_size;
482 int xres_min, xres_max;
483 int yres_min, yres_max;
484 struct omapfb_plane_struct *plane = fbi->par;
485 struct omapfb_device *fbdev = plane->fbdev;
486 struct lcd_panel *panel = fbdev->panel;
488 if (set_color_mode(plane, var) < 0)
491 bpp = var->bits_per_pixel;
492 if (plane->color_mode == OMAPFB_COLOR_RGB444)
495 switch (var->rotate) {
498 xres_min = OMAPFB_PLANE_XRES_MIN;
499 xres_max = panel->x_res;
500 yres_min = OMAPFB_PLANE_YRES_MIN;
501 yres_max = panel->y_res;
502 if (cpu_is_omap15xx()) {
503 var->xres = panel->x_res;
504 var->yres = panel->y_res;
509 xres_min = OMAPFB_PLANE_YRES_MIN;
510 xres_max = panel->y_res;
511 yres_min = OMAPFB_PLANE_XRES_MIN;
512 yres_max = panel->x_res;
513 if (cpu_is_omap15xx()) {
514 var->xres = panel->y_res;
515 var->yres = panel->x_res;
522 if (var->xres < xres_min)
523 var->xres = xres_min;
524 if (var->yres < yres_min)
525 var->yres = yres_min;
526 if (var->xres > xres_max)
527 var->xres = xres_max;
528 if (var->yres > yres_max)
529 var->yres = yres_max;
531 if (var->xres_virtual < var->xres)
532 var->xres_virtual = var->xres;
533 if (var->yres_virtual < var->yres)
534 var->yres_virtual = var->yres;
535 max_frame_size = fbdev->mem_desc.region[plane->idx].size;
536 line_size = var->xres_virtual * bpp / 8;
537 if (line_size * var->yres_virtual > max_frame_size) {
538 /* Try to keep yres_virtual first */
539 line_size = max_frame_size / var->yres_virtual;
540 var->xres_virtual = line_size * 8 / bpp;
541 if (var->xres_virtual < var->xres) {
542 /* Still doesn't fit. Shrink yres_virtual too */
543 var->xres_virtual = var->xres;
544 line_size = var->xres * bpp / 8;
545 var->yres_virtual = max_frame_size / line_size;
547 /* Recheck this, as the virtual size changed. */
548 if (var->xres_virtual < var->xres)
549 var->xres = var->xres_virtual;
550 if (var->yres_virtual < var->yres)
551 var->yres = var->yres_virtual;
552 if (var->xres < xres_min || var->yres < yres_min)
555 if (var->xres + var->xoffset > var->xres_virtual)
556 var->xoffset = var->xres_virtual - var->xres;
557 if (var->yres + var->yoffset > var->yres_virtual)
558 var->yoffset = var->yres_virtual - var->yres;
560 if (plane->color_mode == OMAPFB_COLOR_RGB444) {
561 var->red.offset = 8; var->red.length = 4;
562 var->red.msb_right = 0;
563 var->green.offset = 4; var->green.length = 4;
564 var->green.msb_right = 0;
565 var->blue.offset = 0; var->blue.length = 4;
566 var->blue.msb_right = 0;
568 var->red.offset = 11; var->red.length = 5;
569 var->red.msb_right = 0;
570 var->green.offset = 5; var->green.length = 6;
571 var->green.msb_right = 0;
572 var->blue.offset = 0; var->blue.length = 5;
573 var->blue.msb_right = 0;
580 /* pixclock in ps, the rest in pixclock */
581 var->pixclock = 10000000 / (panel->pixel_clock / 100);
582 var->left_margin = panel->hfp;
583 var->right_margin = panel->hbp;
584 var->upper_margin = panel->vfp;
585 var->lower_margin = panel->vbp;
586 var->hsync_len = panel->hsw;
587 var->vsync_len = panel->vsw;
589 /* TODO: get these from panel->config */
590 var->vmode = FB_VMODE_NONINTERLACED;
597 /* Set rotation (0, 90, 180, 270 degree), and switch to the new mode. */
598 static void omapfb_rotate(struct fb_info *fbi, int rotate)
600 struct omapfb_plane_struct *plane = fbi->par;
601 struct omapfb_device *fbdev = plane->fbdev;
603 omapfb_rqueue_lock(fbdev);
604 if (rotate != fbi->var.rotate) {
605 struct fb_var_screeninfo *new_var = &fbdev->new_var;
607 memcpy(new_var, &fbi->var, sizeof(*new_var));
608 new_var->rotate = rotate;
609 if (set_fb_var(fbi, new_var) == 0 &&
610 memcmp(new_var, &fbi->var, sizeof(*new_var))) {
611 memcpy(&fbi->var, new_var, sizeof(*new_var));
612 ctrl_change_mode(fbi);
615 omapfb_rqueue_unlock(fbdev);
619 * Set new x,y offsets in the virtual display for the visible area and switch
622 static int omapfb_pan_display(struct fb_var_screeninfo *var,
625 struct omapfb_plane_struct *plane = fbi->par;
626 struct omapfb_device *fbdev = plane->fbdev;
629 omapfb_rqueue_lock(fbdev);
630 if (var->xoffset != fbi->var.xoffset ||
631 var->yoffset != fbi->var.yoffset) {
632 struct fb_var_screeninfo *new_var = &fbdev->new_var;
634 memcpy(new_var, &fbi->var, sizeof(*new_var));
635 new_var->xoffset = var->xoffset;
636 new_var->yoffset = var->yoffset;
637 if (set_fb_var(fbi, new_var))
640 memcpy(&fbi->var, new_var, sizeof(*new_var));
641 ctrl_change_mode(fbi);
644 omapfb_rqueue_unlock(fbdev);
649 /* Set mirror to vertical axis and switch to the new mode. */
650 static int omapfb_mirror(struct fb_info *fbi, int mirror)
652 struct omapfb_plane_struct *plane = fbi->par;
653 struct omapfb_device *fbdev = plane->fbdev;
656 omapfb_rqueue_lock(fbdev);
657 mirror = mirror ? 1 : 0;
658 if (cpu_is_omap15xx())
660 else if (mirror != plane->info.mirror) {
661 plane->info.mirror = mirror;
662 r = ctrl_change_mode(fbi);
664 omapfb_rqueue_unlock(fbdev);
670 * Check values in var, try to adjust them in case of out of bound values if
671 * possible, or return error.
673 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
675 struct omapfb_plane_struct *plane = fbi->par;
676 struct omapfb_device *fbdev = plane->fbdev;
679 omapfb_rqueue_lock(fbdev);
680 if (fbdev->ctrl->sync != NULL)
682 r = set_fb_var(fbi, var);
683 omapfb_rqueue_unlock(fbdev);
689 * Switch to a new mode. The parameters for it has been check already by
692 static int omapfb_set_par(struct fb_info *fbi)
694 struct omapfb_plane_struct *plane = fbi->par;
695 struct omapfb_device *fbdev = plane->fbdev;
698 omapfb_rqueue_lock(fbdev);
700 r = ctrl_change_mode(fbi);
701 omapfb_rqueue_unlock(fbdev);
706 int omapfb_update_window_async(struct fb_info *fbi,
707 struct omapfb_update_window *win,
708 void (*callback)(void *),
712 struct omapfb_plane_struct *plane = fbi->par;
713 struct omapfb_device *fbdev = plane->fbdev;
714 struct fb_var_screeninfo *var = &fbi->var;
716 switch (var->rotate) {
719 xres = fbdev->panel->x_res;
720 yres = fbdev->panel->y_res;
724 xres = fbdev->panel->y_res;
725 yres = fbdev->panel->x_res;
731 if (win->x >= xres || win->y >= yres ||
732 win->out_x > xres || win->out_y > yres)
735 if (!fbdev->ctrl->update_window ||
736 fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
739 if (win->x + win->width > xres)
740 win->width = xres - win->x;
741 if (win->y + win->height > yres)
742 win->height = yres - win->y;
743 if (win->out_x + win->out_width > xres)
744 win->out_width = xres - win->out_x;
745 if (win->out_y + win->out_height > yres)
746 win->out_height = yres - win->out_y;
747 if (!win->width || !win->height || !win->out_width || !win->out_height)
750 return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
752 EXPORT_SYMBOL(omapfb_update_window_async);
754 static int omapfb_update_win(struct fb_info *fbi,
755 struct omapfb_update_window *win)
757 struct omapfb_plane_struct *plane = fbi->par;
760 omapfb_rqueue_lock(plane->fbdev);
761 ret = omapfb_update_window_async(fbi, win, NULL, NULL);
762 omapfb_rqueue_unlock(plane->fbdev);
767 static int omapfb_update_full_screen(struct fb_info *fbi)
769 struct omapfb_plane_struct *plane = fbi->par;
770 struct omapfb_device *fbdev = plane->fbdev;
771 struct omapfb_update_window win;
774 if (!fbdev->ctrl->update_window ||
775 fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
780 win.width = fbi->var.xres;
781 win.height = fbi->var.yres;
784 win.out_width = fbi->var.xres;
785 win.out_height = fbi->var.yres;
788 omapfb_rqueue_lock(fbdev);
789 r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
790 omapfb_rqueue_unlock(fbdev);
795 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
797 struct omapfb_plane_struct *plane = fbi->par;
798 struct omapfb_device *fbdev = plane->fbdev;
799 struct lcd_panel *panel = fbdev->panel;
800 struct omapfb_plane_info old_info;
803 if (pi->pos_x + pi->out_width > panel->x_res ||
804 pi->pos_y + pi->out_height > panel->y_res)
807 omapfb_rqueue_lock(fbdev);
808 if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
810 * This plane's memory was freed, can't enable it
811 * until it's reallocated.
816 old_info = plane->info;
819 r = ctrl_change_mode(fbi);
821 plane->info = old_info;
825 r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
827 plane->info = old_info;
831 omapfb_rqueue_unlock(fbdev);
835 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
837 struct omapfb_plane_struct *plane = fbi->par;
843 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
845 struct omapfb_plane_struct *plane = fbi->par;
846 struct omapfb_device *fbdev = plane->fbdev;
847 struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
851 if (fbdev->ctrl->setup_mem == NULL)
853 if (mi->type != OMAPFB_MEMTYPE_SDRAM)
856 size = PAGE_ALIGN(mi->size);
857 omapfb_rqueue_lock(fbdev);
858 if (plane->info.enabled) {
862 if (rg->size != size || rg->type != mi->type) {
863 struct fb_var_screeninfo *new_var = &fbdev->new_var;
864 unsigned long old_size = rg->size;
865 u8 old_type = rg->type;
871 * size == 0 is a special case, for which we
872 * don't check / adjust the screen parameters.
873 * This isn't a problem since the plane can't
874 * be reenabled unless its size is > 0.
876 if (old_size != size && size) {
878 memcpy(new_var, &fbi->var, sizeof(*new_var));
879 r = set_fb_var(fbi, new_var);
885 if (fbdev->ctrl->sync)
887 r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
889 /* Revert changes. */
896 if (old_size != size) {
898 memcpy(&fbi->var, new_var, sizeof(fbi->var));
902 * Set these explicitly to indicate that the
903 * plane memory is dealloce'd, the other
904 * screen parameters in var / fix are invalid.
906 mutex_lock(&fbi->mm_lock);
907 fbi->fix.smem_start = 0;
908 fbi->fix.smem_len = 0;
909 mutex_unlock(&fbi->mm_lock);
914 omapfb_rqueue_unlock(fbdev);
919 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
921 struct omapfb_plane_struct *plane = fbi->par;
922 struct omapfb_device *fbdev = plane->fbdev;
923 struct omapfb_mem_region *rg;
925 rg = &fbdev->mem_desc.region[plane->idx];
926 memset(mi, 0, sizeof(*mi));
933 static int omapfb_set_color_key(struct omapfb_device *fbdev,
934 struct omapfb_color_key *ck)
938 if (!fbdev->ctrl->set_color_key)
941 omapfb_rqueue_lock(fbdev);
942 r = fbdev->ctrl->set_color_key(ck);
943 omapfb_rqueue_unlock(fbdev);
948 static int omapfb_get_color_key(struct omapfb_device *fbdev,
949 struct omapfb_color_key *ck)
953 if (!fbdev->ctrl->get_color_key)
956 omapfb_rqueue_lock(fbdev);
957 r = fbdev->ctrl->get_color_key(ck);
958 omapfb_rqueue_unlock(fbdev);
963 static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
964 static int notifier_inited;
966 static void omapfb_init_notifier(void)
970 for (i = 0; i < OMAPFB_PLANE_NUM; i++)
971 BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
974 int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
975 omapfb_notifier_callback_t callback,
980 if ((unsigned)omapfb_nb->plane_idx >= OMAPFB_PLANE_NUM)
983 if (!notifier_inited) {
984 omapfb_init_notifier();
988 omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
989 unsigned long, void *))callback;
990 omapfb_nb->data = callback_data;
991 r = blocking_notifier_chain_register(
992 &omapfb_client_list[omapfb_nb->plane_idx],
996 if (omapfb_dev != NULL &&
997 omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
998 omapfb_dev->ctrl->bind_client(omapfb_nb);
1003 EXPORT_SYMBOL(omapfb_register_client);
1005 int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
1007 return blocking_notifier_chain_unregister(
1008 &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
1010 EXPORT_SYMBOL(omapfb_unregister_client);
1012 void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
1016 if (!notifier_inited)
1017 /* no client registered yet */
1020 for (i = 0; i < OMAPFB_PLANE_NUM; i++)
1021 blocking_notifier_call_chain(&omapfb_client_list[i], event,
1024 EXPORT_SYMBOL(omapfb_notify_clients);
1026 static int omapfb_set_update_mode(struct omapfb_device *fbdev,
1027 enum omapfb_update_mode mode)
1031 omapfb_rqueue_lock(fbdev);
1032 r = fbdev->ctrl->set_update_mode(mode);
1033 omapfb_rqueue_unlock(fbdev);
1038 static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
1042 omapfb_rqueue_lock(fbdev);
1043 r = fbdev->ctrl->get_update_mode();
1044 omapfb_rqueue_unlock(fbdev);
1049 static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
1050 struct omapfb_caps *caps)
1052 memset(caps, 0, sizeof(*caps));
1053 fbdev->ctrl->get_caps(plane, caps);
1054 caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
1057 /* For lcd testing */
1058 void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
1060 omapfb_rqueue_lock(fbdev);
1061 *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
1062 if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
1063 struct omapfb_update_window win;
1065 memset(&win, 0, sizeof(win));
1070 fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
1072 omapfb_rqueue_unlock(fbdev);
1074 EXPORT_SYMBOL(omapfb_write_first_pixel);
1077 * Ioctl interface. Part of the kernel mode frame buffer API is duplicated
1078 * here to be accessible by user mode code.
1080 static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
1083 struct omapfb_plane_struct *plane = fbi->par;
1084 struct omapfb_device *fbdev = plane->fbdev;
1085 struct fb_ops *ops = fbi->fbops;
1087 struct omapfb_update_window update_window;
1088 struct omapfb_plane_info plane_info;
1089 struct omapfb_mem_info mem_info;
1090 struct omapfb_color_key color_key;
1091 enum omapfb_update_mode update_mode;
1092 struct omapfb_caps caps;
1093 unsigned int mirror;
1102 if (get_user(p.mirror, (int __user *)arg))
1105 omapfb_mirror(fbi, p.mirror);
1107 case OMAPFB_SYNC_GFX:
1112 case OMAPFB_SET_UPDATE_MODE:
1113 if (get_user(p.update_mode, (int __user *)arg))
1116 r = omapfb_set_update_mode(fbdev, p.update_mode);
1118 case OMAPFB_GET_UPDATE_MODE:
1119 p.update_mode = omapfb_get_update_mode(fbdev);
1120 if (put_user(p.update_mode,
1121 (enum omapfb_update_mode __user *)arg))
1124 case OMAPFB_UPDATE_WINDOW_OLD:
1125 if (copy_from_user(&p.update_window, (void __user *)arg,
1126 sizeof(struct omapfb_update_window_old)))
1129 struct omapfb_update_window *u = &p.update_window;
1132 u->out_width = u->width;
1133 u->out_height = u->height;
1134 memset(u->reserved, 0, sizeof(u->reserved));
1135 r = omapfb_update_win(fbi, u);
1138 case OMAPFB_UPDATE_WINDOW:
1139 if (copy_from_user(&p.update_window, (void __user *)arg,
1140 sizeof(p.update_window)))
1143 r = omapfb_update_win(fbi, &p.update_window);
1145 case OMAPFB_SETUP_PLANE:
1146 if (copy_from_user(&p.plane_info, (void __user *)arg,
1147 sizeof(p.plane_info)))
1150 r = omapfb_setup_plane(fbi, &p.plane_info);
1152 case OMAPFB_QUERY_PLANE:
1153 if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
1155 if (copy_to_user((void __user *)arg, &p.plane_info,
1156 sizeof(p.plane_info)))
1159 case OMAPFB_SETUP_MEM:
1160 if (copy_from_user(&p.mem_info, (void __user *)arg,
1161 sizeof(p.mem_info)))
1164 r = omapfb_setup_mem(fbi, &p.mem_info);
1166 case OMAPFB_QUERY_MEM:
1167 if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
1169 if (copy_to_user((void __user *)arg, &p.mem_info,
1170 sizeof(p.mem_info)))
1173 case OMAPFB_SET_COLOR_KEY:
1174 if (copy_from_user(&p.color_key, (void __user *)arg,
1175 sizeof(p.color_key)))
1178 r = omapfb_set_color_key(fbdev, &p.color_key);
1180 case OMAPFB_GET_COLOR_KEY:
1181 if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
1183 if (copy_to_user((void __user *)arg, &p.color_key,
1184 sizeof(p.color_key)))
1187 case OMAPFB_GET_CAPS:
1188 omapfb_get_caps(fbdev, plane->idx, &p.caps);
1189 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
1192 case OMAPFB_LCD_TEST:
1196 if (get_user(test_num, (int __user *)arg)) {
1200 if (!fbdev->panel->run_test) {
1204 r = fbdev->panel->run_test(fbdev->panel, test_num);
1207 case OMAPFB_CTRL_TEST:
1211 if (get_user(test_num, (int __user *)arg)) {
1215 if (!fbdev->ctrl->run_test) {
1219 r = fbdev->ctrl->run_test(test_num);
1229 static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1231 struct omapfb_plane_struct *plane = info->par;
1232 struct omapfb_device *fbdev = plane->fbdev;
1235 omapfb_rqueue_lock(fbdev);
1236 r = fbdev->ctrl->mmap(info, vma);
1237 omapfb_rqueue_unlock(fbdev);
1243 * Callback table for the frame buffer framework. Some of these pointers
1244 * will be changed according to the current setting of fb_info->accel_flags.
1246 static struct fb_ops omapfb_ops = {
1247 .owner = THIS_MODULE,
1248 .fb_open = omapfb_open,
1249 .fb_release = omapfb_release,
1250 .fb_setcolreg = omapfb_setcolreg,
1251 .fb_setcmap = omapfb_setcmap,
1252 .fb_fillrect = cfb_fillrect,
1253 .fb_copyarea = cfb_copyarea,
1254 .fb_imageblit = cfb_imageblit,
1255 .fb_blank = omapfb_blank,
1256 .fb_ioctl = omapfb_ioctl,
1257 .fb_check_var = omapfb_check_var,
1258 .fb_set_par = omapfb_set_par,
1259 .fb_rotate = omapfb_rotate,
1260 .fb_pan_display = omapfb_pan_display,
1264 * ---------------------------------------------------------------------------
1266 * ---------------------------------------------------------------------------
1268 /* omapfbX sysfs entries */
1269 static ssize_t omapfb_show_caps_num(struct device *dev,
1270 struct device_attribute *attr, char *buf)
1272 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1275 struct omapfb_caps caps;
1279 while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1280 omapfb_get_caps(fbdev, plane, &caps);
1281 size += snprintf(&buf[size], PAGE_SIZE - size,
1282 "plane#%d %#010x %#010x %#010x\n",
1283 plane, caps.ctrl, caps.plane_color, caps.wnd_color);
1289 static ssize_t omapfb_show_caps_text(struct device *dev,
1290 struct device_attribute *attr, char *buf)
1292 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1294 struct omapfb_caps caps;
1300 while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1301 omapfb_get_caps(fbdev, plane, &caps);
1302 size += snprintf(&buf[size], PAGE_SIZE - size,
1303 "plane#%d:\n", plane);
1304 for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
1305 size < PAGE_SIZE; i++) {
1306 if (ctrl_caps[i].flag & caps.ctrl)
1307 size += snprintf(&buf[size], PAGE_SIZE - size,
1308 " %s\n", ctrl_caps[i].name);
1310 size += snprintf(&buf[size], PAGE_SIZE - size,
1311 " plane colors:\n");
1312 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1313 size < PAGE_SIZE; i++) {
1314 if (color_caps[i].flag & caps.plane_color)
1315 size += snprintf(&buf[size], PAGE_SIZE - size,
1316 " %s\n", color_caps[i].name);
1318 size += snprintf(&buf[size], PAGE_SIZE - size,
1319 " window colors:\n");
1320 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1321 size < PAGE_SIZE; i++) {
1322 if (color_caps[i].flag & caps.wnd_color)
1323 size += snprintf(&buf[size], PAGE_SIZE - size,
1324 " %s\n", color_caps[i].name);
1332 static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
1333 static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
1335 /* panel sysfs entries */
1336 static ssize_t omapfb_show_panel_name(struct device *dev,
1337 struct device_attribute *attr, char *buf)
1339 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1341 return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
1344 static ssize_t omapfb_show_bklight_level(struct device *dev,
1345 struct device_attribute *attr,
1348 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1351 if (fbdev->panel->get_bklight_level) {
1352 r = snprintf(buf, PAGE_SIZE, "%d\n",
1353 fbdev->panel->get_bklight_level(fbdev->panel));
1359 static ssize_t omapfb_store_bklight_level(struct device *dev,
1360 struct device_attribute *attr,
1361 const char *buf, size_t size)
1363 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1366 if (fbdev->panel->set_bklight_level) {
1369 if (sscanf(buf, "%10d", &level) == 1) {
1370 r = fbdev->panel->set_bklight_level(fbdev->panel,
1376 return r ? r : size;
1379 static ssize_t omapfb_show_bklight_max(struct device *dev,
1380 struct device_attribute *attr, char *buf)
1382 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1385 if (fbdev->panel->get_bklight_level) {
1386 r = snprintf(buf, PAGE_SIZE, "%d\n",
1387 fbdev->panel->get_bklight_max(fbdev->panel));
1393 static struct device_attribute dev_attr_panel_name =
1394 __ATTR(name, 0444, omapfb_show_panel_name, NULL);
1395 static DEVICE_ATTR(backlight_level, 0664,
1396 omapfb_show_bklight_level, omapfb_store_bklight_level);
1397 static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
1399 static struct attribute *panel_attrs[] = {
1400 &dev_attr_panel_name.attr,
1401 &dev_attr_backlight_level.attr,
1402 &dev_attr_backlight_max.attr,
1406 static struct attribute_group panel_attr_grp = {
1408 .attrs = panel_attrs,
1411 /* ctrl sysfs entries */
1412 static ssize_t omapfb_show_ctrl_name(struct device *dev,
1413 struct device_attribute *attr, char *buf)
1415 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1417 return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
1420 static struct device_attribute dev_attr_ctrl_name =
1421 __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
1423 static struct attribute *ctrl_attrs[] = {
1424 &dev_attr_ctrl_name.attr,
1428 static struct attribute_group ctrl_attr_grp = {
1430 .attrs = ctrl_attrs,
1433 static int omapfb_register_sysfs(struct omapfb_device *fbdev)
1437 if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
1440 if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
1443 if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
1446 if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
1451 sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1453 device_remove_file(fbdev->dev, &dev_attr_caps_text);
1455 device_remove_file(fbdev->dev, &dev_attr_caps_num);
1457 dev_err(fbdev->dev, "unable to register sysfs interface\n");
1461 static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
1463 sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
1464 sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1465 device_remove_file(fbdev->dev, &dev_attr_caps_num);
1466 device_remove_file(fbdev->dev, &dev_attr_caps_text);
1470 * ---------------------------------------------------------------------------
1472 * ---------------------------------------------------------------------------
1474 /* Initialize system fb_info object and set the default video mode.
1475 * The frame buffer memory already allocated by lcddma_init
1477 static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
1479 struct fb_var_screeninfo *var = &info->var;
1480 struct fb_fix_screeninfo *fix = &info->fix;
1483 info->fbops = &omapfb_ops;
1484 info->flags = FBINFO_FLAG_DEFAULT;
1486 strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
1488 info->pseudo_palette = fbdev->pseudo_palette;
1490 var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0;
1491 var->xres = def_vxres;
1492 var->yres = def_vyres;
1493 var->xres_virtual = def_vxres;
1494 var->yres_virtual = def_vyres;
1495 var->rotate = def_rotate;
1496 var->bits_per_pixel = fbdev->panel->bpp;
1498 set_fb_var(info, var);
1499 set_fb_fix(info, 1);
1501 r = fb_alloc_cmap(&info->cmap, 16, 0);
1503 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1508 /* Release the fb_info object */
1509 static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
1511 fb_dealloc_cmap(&fbi->cmap);
1514 static void planes_cleanup(struct omapfb_device *fbdev)
1518 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1519 if (fbdev->fb_info[i] == NULL)
1521 fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
1522 framebuffer_release(fbdev->fb_info[i]);
1526 static int planes_init(struct omapfb_device *fbdev)
1528 struct fb_info *fbi;
1532 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1533 struct omapfb_plane_struct *plane;
1534 fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
1538 "unable to allocate memory for plane info\n");
1539 planes_cleanup(fbdev);
1544 plane->fbdev = fbdev;
1545 plane->info.mirror = def_mirror;
1546 fbdev->fb_info[i] = fbi;
1548 if ((r = fbinfo_init(fbdev, fbi)) < 0) {
1549 framebuffer_release(fbi);
1550 planes_cleanup(fbdev);
1553 plane->info.out_width = fbi->var.xres;
1554 plane->info.out_height = fbi->var.yres;
1560 * Free driver resources. Can be called to rollback an aborted initialization
1563 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
1569 for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
1570 unregister_framebuffer(fbdev->fb_info[i]);
1572 omapfb_unregister_sysfs(fbdev);
1574 fbdev->panel->disable(fbdev->panel);
1576 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1578 planes_cleanup(fbdev);
1580 ctrl_cleanup(fbdev);
1582 fbdev->panel->cleanup(fbdev->panel);
1584 dev_set_drvdata(fbdev->dev, NULL);
1587 /* nothing to free */
1594 static int omapfb_find_ctrl(struct omapfb_device *fbdev)
1596 struct omapfb_platform_data *conf;
1600 conf = dev_get_platdata(fbdev->dev);
1604 strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
1605 name[sizeof(name) - 1] = '\0';
1607 if (strcmp(name, "internal") == 0) {
1608 fbdev->ctrl = fbdev->int_ctrl;
1612 for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
1613 dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
1614 if (strcmp(ctrls[i]->name, name) == 0) {
1615 fbdev->ctrl = ctrls[i];
1620 if (fbdev->ctrl == NULL) {
1621 dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
1628 static void check_required_callbacks(struct omapfb_device *fbdev)
1630 #define _C(x) (fbdev->ctrl->x != NULL)
1631 #define _P(x) (fbdev->panel->x != NULL)
1632 BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
1633 BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
1634 _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
1635 _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
1642 * Called by LDM binding to probe and attach a new device.
1643 * Initialization sequence:
1644 * 1. allocate system omapfb_device structure
1645 * 2. select controller type according to platform configuration
1647 * 3. init LCD controller and LCD DMA
1648 * 4. init system fb_info structure for all planes
1649 * 5. setup video mode for first plane and enable it
1650 * 6. enable LCD panel
1651 * 7. register sysfs attributes
1652 * OMAPFB_ACTIVE: register system fb_info structure for all planes
1654 static int omapfb_do_probe(struct platform_device *pdev,
1655 struct lcd_panel *panel)
1657 struct omapfb_device *fbdev = NULL;
1659 unsigned long phz, hhz, vhz;
1666 if (pdev->num_resources != 0) {
1667 dev_err(&pdev->dev, "probed for an unknown device\n");
1672 if (dev_get_platdata(&pdev->dev) == NULL) {
1673 dev_err(&pdev->dev, "missing platform data\n");
1678 fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
1679 if (fbdev == NULL) {
1681 "unable to allocate memory for device info\n");
1687 fbdev->dev = &pdev->dev;
1688 fbdev->panel = panel;
1689 fbdev->dssdev = &omapdss_device;
1690 platform_set_drvdata(pdev, fbdev);
1692 mutex_init(&fbdev->rqueue_mutex);
1694 fbdev->int_ctrl = &omap1_int_ctrl;
1695 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1696 fbdev->ext_if = &omap1_ext_if;
1698 if (omapfb_find_ctrl(fbdev) < 0) {
1700 "LCD controller not found, board not supported\n");
1705 r = fbdev->panel->init(fbdev->panel, fbdev);
1709 pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
1711 def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
1712 def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
1716 r = ctrl_init(fbdev);
1719 if (fbdev->ctrl->mmap != NULL)
1720 omapfb_ops.fb_mmap = omapfb_mmap;
1723 check_required_callbacks(fbdev);
1725 r = planes_init(fbdev);
1730 #ifdef CONFIG_FB_OMAP_DMA_TUNE
1731 /* Set DMA priority for EMIFF access to highest */
1732 omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
1735 r = ctrl_change_mode(fbdev->fb_info[0]);
1737 dev_err(fbdev->dev, "mode setting failed\n");
1741 /* GFX plane is enabled by default */
1742 r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
1746 omapfb_set_update_mode(fbdev, manual_update ?
1747 OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
1750 r = fbdev->panel->enable(fbdev->panel);
1755 r = omapfb_register_sysfs(fbdev);
1761 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1762 r = register_framebuffer(fbdev->fb_info[i]);
1765 "registering framebuffer %d failed\n", i);
1768 vram += fbdev->mem_desc.region[i].size;
1771 fbdev->state = OMAPFB_ACTIVE;
1773 panel = fbdev->panel;
1774 phz = panel->pixel_clock * 1000;
1775 hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
1776 vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
1780 pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
1781 vram, fbdev->mem_desc.region_cnt);
1782 pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
1783 "vfreq %lu.%lu Hz\n",
1784 phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
1789 omapfb_free_resources(fbdev, init_state);
1794 static int omapfb_probe(struct platform_device *pdev)
1798 BUG_ON(fbdev_pdev != NULL);
1800 r = platform_device_register(&omapdss_device);
1802 dev_err(&pdev->dev, "can't register omapdss device\n");
1806 /* Delay actual initialization until the LCD is registered */
1808 if (fbdev_panel != NULL)
1809 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1813 void omapfb_register_panel(struct lcd_panel *panel)
1815 BUG_ON(fbdev_panel != NULL);
1817 fbdev_panel = panel;
1818 if (fbdev_pdev != NULL)
1819 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1821 EXPORT_SYMBOL_GPL(omapfb_register_panel);
1823 /* Called when the device is being detached from the driver */
1824 static int omapfb_remove(struct platform_device *pdev)
1826 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1827 enum omapfb_state saved_state = fbdev->state;
1829 /* FIXME: wait till completion of pending events */
1831 fbdev->state = OMAPFB_DISABLED;
1832 omapfb_free_resources(fbdev, saved_state);
1834 platform_device_unregister(&omapdss_device);
1835 fbdev->dssdev = NULL;
1841 static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
1843 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1846 omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
1851 static int omapfb_resume(struct platform_device *pdev)
1853 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1856 omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
1860 static struct platform_driver omapfb_driver = {
1861 .probe = omapfb_probe,
1862 .remove = omapfb_remove,
1863 .suspend = omapfb_suspend,
1864 .resume = omapfb_resume,
1866 .name = MODULE_NAME,
1872 /* Process kernel command line parameters */
1873 static int __init omapfb_setup(char *options)
1875 char *this_opt = NULL;
1878 pr_debug("omapfb: options %s\n", options);
1880 if (!options || !*options)
1883 while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1884 if (!strncmp(this_opt, "accel", 5))
1886 else if (!strncmp(this_opt, "vram:", 5)) {
1889 vram = (simple_strtoul(this_opt + 5, &suffix, 0));
1890 switch (suffix[0]) {
1902 pr_debug("omapfb: invalid vram suffix %c\n",
1906 def_vram[def_vram_cnt++] = vram;
1908 else if (!strncmp(this_opt, "vxres:", 6))
1909 def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
1910 else if (!strncmp(this_opt, "vyres:", 6))
1911 def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
1912 else if (!strncmp(this_opt, "rotate:", 7))
1913 def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
1914 else if (!strncmp(this_opt, "mirror:", 7))
1915 def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
1916 else if (!strncmp(this_opt, "manual_update", 13))
1919 pr_debug("omapfb: invalid option\n");
1929 /* Register both the driver and the device */
1930 static int __init omapfb_init(void)
1935 if (fb_get_options("omapfb", &option))
1937 omapfb_setup(option);
1939 /* Register the driver with LDM */
1940 if (platform_driver_register(&omapfb_driver)) {
1941 pr_debug("failed to register omapfb driver\n");
1948 static void __exit omapfb_cleanup(void)
1950 platform_driver_unregister(&omapfb_driver);
1953 module_param_named(accel, def_accel, uint, 0664);
1954 module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
1955 module_param_named(vxres, def_vxres, long, 0664);
1956 module_param_named(vyres, def_vyres, long, 0664);
1957 module_param_named(rotate, def_rotate, uint, 0664);
1958 module_param_named(mirror, def_mirror, uint, 0664);
1959 module_param_named(manual_update, manual_update, bool, 0664);
1961 module_init(omapfb_init);
1962 module_exit(omapfb_cleanup);
1964 MODULE_DESCRIPTION("TI OMAP framebuffer driver");
1965 MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
1966 MODULE_LICENSE("GPL");