1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Framebuffer driver for TI OMAP boards
5 * Copyright (C) 2004 Nokia Corporation
6 * Author: Imre Deak <imre.deak@nokia.com>
9 * Alex McMains <aam@ridgerun.com> - Original driver
10 * Juha Yrjola <juha.yrjola@nokia.com> - Original driver and improvements
11 * Dirk Behme <dirk.behme@de.bosch.com> - changes for 2.6 kernel API
12 * Texas Instruments - H3 support
14 #include <linux/platform_device.h>
16 #include <linux/slab.h>
17 #include <linux/uaccess.h>
18 #include <linux/module.h>
19 #include <linux/sysfs.h>
21 #include <linux/omap-dma.h>
23 #include <linux/soc/ti/omap1-soc.h>
27 #define MODULE_NAME "omapfb"
29 static unsigned int def_accel;
30 static unsigned long def_vram[OMAPFB_PLANE_NUM];
31 static unsigned int def_vram_cnt;
32 static unsigned long def_vxres;
33 static unsigned long def_vyres;
34 static unsigned int def_rotate;
35 static unsigned int def_mirror;
37 static bool manual_update = IS_BUILTIN(CONFIG_FB_OMAP_MANUAL_UPDATE);
39 static struct platform_device *fbdev_pdev;
40 static struct lcd_panel *fbdev_panel;
41 static struct omapfb_device *omapfb_dev;
43 struct caps_table_struct {
48 static const struct caps_table_struct ctrl_caps[] = {
49 { OMAPFB_CAPS_MANUAL_UPDATE, "manual update" },
50 { OMAPFB_CAPS_TEARSYNC, "tearing synchronization" },
51 { OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
52 { OMAPFB_CAPS_PLANE_SCALE, "scale plane" },
53 { OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
54 { OMAPFB_CAPS_WINDOW_SCALE, "scale window" },
55 { OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
56 { OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" },
57 { OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" },
60 static const struct caps_table_struct color_caps[] = {
61 { 1 << OMAPFB_COLOR_RGB565, "RGB565", },
62 { 1 << OMAPFB_COLOR_YUV422, "YUV422", },
63 { 1 << OMAPFB_COLOR_YUV420, "YUV420", },
64 { 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", },
65 { 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", },
66 { 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", },
67 { 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", },
68 { 1 << OMAPFB_COLOR_RGB444, "RGB444", },
69 { 1 << OMAPFB_COLOR_YUY422, "YUY422", },
72 static void omapdss_release(struct device *dev)
76 /* dummy device for clocks */
77 static struct platform_device omapdss_device = {
78 .name = "omapdss_dss",
81 .release = omapdss_release,
86 * ---------------------------------------------------------------------------
88 * ---------------------------------------------------------------------------
90 extern struct lcd_ctrl hwa742_ctrl;
92 static const struct lcd_ctrl *ctrls[] = {
95 #ifdef CONFIG_FB_OMAP_LCDC_HWA742
100 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
101 extern struct lcd_ctrl_extif omap1_ext_if;
104 static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
106 mutex_lock(&fbdev->rqueue_mutex);
109 static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
111 mutex_unlock(&fbdev->rqueue_mutex);
115 * ---------------------------------------------------------------------------
116 * LCD controller and LCD DMA
117 * ---------------------------------------------------------------------------
120 * Allocate resources needed for LCD controller and LCD DMA operations. Video
121 * memory is allocated from system memory according to the virtual display
122 * size, except if a bigger memory size is specified explicitly as a kernel
125 static int ctrl_init(struct omapfb_device *fbdev)
130 /* kernel/module vram parameters override boot tags/board config */
132 for (i = 0; i < def_vram_cnt; i++)
133 fbdev->mem_desc.region[i].size =
134 PAGE_ALIGN(def_vram[i]);
135 fbdev->mem_desc.region_cnt = i;
138 if (!fbdev->mem_desc.region_cnt) {
139 struct lcd_panel *panel = fbdev->panel;
141 int bpp = panel->bpp;
143 /* 12 bpp is packed in 16 bits */
146 def_size = def_vxres * def_vyres * bpp / 8;
147 fbdev->mem_desc.region_cnt = 1;
148 fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
150 r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
152 dev_err(fbdev->dev, "controller initialization failed (%d)\n",
158 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
159 dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
161 fbdev->mem_desc.region[i].paddr,
162 fbdev->mem_desc.region[i].vaddr,
163 fbdev->mem_desc.region[i].size);
169 static void ctrl_cleanup(struct omapfb_device *fbdev)
171 fbdev->ctrl->cleanup();
174 /* Must be called with fbdev->rqueue_mutex held. */
175 static int ctrl_change_mode(struct fb_info *fbi)
178 unsigned long offset;
179 struct omapfb_plane_struct *plane = fbi->par;
180 struct omapfb_device *fbdev = plane->fbdev;
181 struct fb_var_screeninfo *var = &fbi->var;
183 offset = var->yoffset * fbi->fix.line_length +
184 var->xoffset * var->bits_per_pixel / 8;
186 if (fbdev->ctrl->sync)
188 r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
189 offset, var->xres_virtual,
190 plane->info.pos_x, plane->info.pos_y,
191 var->xres, var->yres, plane->color_mode);
195 if (fbdev->ctrl->set_rotate != NULL) {
196 r = fbdev->ctrl->set_rotate(var->rotate);
201 if (fbdev->ctrl->set_scale != NULL)
202 r = fbdev->ctrl->set_scale(plane->idx,
203 var->xres, var->yres,
204 plane->info.out_width,
205 plane->info.out_height);
211 * ---------------------------------------------------------------------------
212 * fbdev framework callbacks and the ioctl interface
213 * ---------------------------------------------------------------------------
215 /* Called each time the omapfb device is opened */
216 static int omapfb_open(struct fb_info *info, int user)
221 static void omapfb_sync(struct fb_info *info);
223 /* Called when the omapfb device is closed. We make sure that any pending
224 * gfx DMA operations are ended, before we return. */
225 static int omapfb_release(struct fb_info *info, int user)
231 /* Store a single color palette entry into a pseudo palette or the hardware
232 * palette if one is available. For now we support only 16bpp and thus store
233 * the entry only to the pseudo palette.
235 static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green,
236 u_int blue, u_int transp, int update_hw_pal)
238 struct omapfb_plane_struct *plane = info->par;
239 struct omapfb_device *fbdev = plane->fbdev;
240 struct fb_var_screeninfo *var = &info->var;
243 switch (plane->color_mode) {
244 case OMAPFB_COLOR_YUV422:
245 case OMAPFB_COLOR_YUV420:
246 case OMAPFB_COLOR_YUY422:
249 case OMAPFB_COLOR_CLUT_8BPP:
250 case OMAPFB_COLOR_CLUT_4BPP:
251 case OMAPFB_COLOR_CLUT_2BPP:
252 case OMAPFB_COLOR_CLUT_1BPP:
253 if (fbdev->ctrl->setcolreg)
254 r = fbdev->ctrl->setcolreg(regno, red, green, blue,
255 transp, update_hw_pal);
257 case OMAPFB_COLOR_RGB565:
258 case OMAPFB_COLOR_RGB444:
264 pal = ((red >> (16 - var->red.length)) <<
266 ((green >> (16 - var->green.length)) <<
268 (blue >> (16 - var->blue.length));
269 ((u32 *)(info->pseudo_palette))[regno] = pal;
278 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
279 u_int transp, struct fb_info *info)
281 return _setcolreg(info, regno, red, green, blue, transp, 1);
284 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
287 u16 *red, *green, *blue, *transp;
293 transp = cmap->transp;
296 for (count = 0; count < cmap->len; count++) {
299 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
300 count == cmap->len - 1);
308 static int omapfb_update_full_screen(struct fb_info *fbi);
310 static int omapfb_blank(int blank, struct fb_info *fbi)
312 struct omapfb_plane_struct *plane = fbi->par;
313 struct omapfb_device *fbdev = plane->fbdev;
317 omapfb_rqueue_lock(fbdev);
319 case FB_BLANK_UNBLANK:
320 if (fbdev->state == OMAPFB_SUSPENDED) {
321 if (fbdev->ctrl->resume)
322 fbdev->ctrl->resume();
323 if (fbdev->panel->enable)
324 fbdev->panel->enable(fbdev->panel);
325 fbdev->state = OMAPFB_ACTIVE;
326 if (fbdev->ctrl->get_update_mode() ==
327 OMAPFB_MANUAL_UPDATE)
331 case FB_BLANK_POWERDOWN:
332 if (fbdev->state == OMAPFB_ACTIVE) {
333 if (fbdev->panel->disable)
334 fbdev->panel->disable(fbdev->panel);
335 if (fbdev->ctrl->suspend)
336 fbdev->ctrl->suspend();
337 fbdev->state = OMAPFB_SUSPENDED;
343 omapfb_rqueue_unlock(fbdev);
345 if (r == 0 && do_update)
346 r = omapfb_update_full_screen(fbi);
351 static void omapfb_sync(struct fb_info *fbi)
353 struct omapfb_plane_struct *plane = fbi->par;
354 struct omapfb_device *fbdev = plane->fbdev;
356 omapfb_rqueue_lock(fbdev);
357 if (fbdev->ctrl->sync)
359 omapfb_rqueue_unlock(fbdev);
363 * Set fb_info.fix fields and also updates fbdev.
364 * When calling this fb_info.var must be set up already.
366 static void set_fb_fix(struct fb_info *fbi, int from_init)
368 struct fb_fix_screeninfo *fix = &fbi->fix;
369 struct fb_var_screeninfo *var = &fbi->var;
370 struct omapfb_plane_struct *plane = fbi->par;
371 struct omapfb_mem_region *rg;
374 rg = &plane->fbdev->mem_desc.region[plane->idx];
375 fbi->screen_base = rg->vaddr;
378 mutex_lock(&fbi->mm_lock);
379 fix->smem_start = rg->paddr;
380 fix->smem_len = rg->size;
381 mutex_unlock(&fbi->mm_lock);
383 fix->smem_start = rg->paddr;
384 fix->smem_len = rg->size;
387 fix->type = FB_TYPE_PACKED_PIXELS;
388 bpp = var->bits_per_pixel;
390 fix->visual = FB_VISUAL_PSEUDOCOLOR;
391 else switch (var->bits_per_pixel) {
394 fix->visual = FB_VISUAL_TRUECOLOR;
395 /* 12bpp is stored in 16 bits */
402 fix->visual = FB_VISUAL_PSEUDOCOLOR;
405 fix->accel = FB_ACCEL_OMAP1610;
406 fix->line_length = var->xres_virtual * bpp / 8;
409 static int set_color_mode(struct omapfb_plane_struct *plane,
410 struct fb_var_screeninfo *var)
412 switch (var->nonstd) {
415 case OMAPFB_COLOR_YUV422:
416 var->bits_per_pixel = 16;
417 plane->color_mode = var->nonstd;
419 case OMAPFB_COLOR_YUV420:
420 var->bits_per_pixel = 12;
421 plane->color_mode = var->nonstd;
423 case OMAPFB_COLOR_YUY422:
424 var->bits_per_pixel = 16;
425 plane->color_mode = var->nonstd;
431 switch (var->bits_per_pixel) {
433 plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
436 plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
439 plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
442 plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
445 var->bits_per_pixel = 16;
448 if (plane->fbdev->panel->bpp == 12)
449 plane->color_mode = OMAPFB_COLOR_RGB444;
451 plane->color_mode = OMAPFB_COLOR_RGB565;
459 * Check the values in var against our capabilities and in case of out of
460 * bound values try to adjust them.
462 static int set_fb_var(struct fb_info *fbi,
463 struct fb_var_screeninfo *var)
466 unsigned long max_frame_size;
467 unsigned long line_size;
468 int xres_min, xres_max;
469 int yres_min, yres_max;
470 struct omapfb_plane_struct *plane = fbi->par;
471 struct omapfb_device *fbdev = plane->fbdev;
472 struct lcd_panel *panel = fbdev->panel;
474 if (set_color_mode(plane, var) < 0)
477 bpp = var->bits_per_pixel;
478 if (plane->color_mode == OMAPFB_COLOR_RGB444)
481 switch (var->rotate) {
484 xres_min = OMAPFB_PLANE_XRES_MIN;
485 xres_max = panel->x_res;
486 yres_min = OMAPFB_PLANE_YRES_MIN;
487 yres_max = panel->y_res;
488 if (cpu_is_omap15xx()) {
489 var->xres = panel->x_res;
490 var->yres = panel->y_res;
495 xres_min = OMAPFB_PLANE_YRES_MIN;
496 xres_max = panel->y_res;
497 yres_min = OMAPFB_PLANE_XRES_MIN;
498 yres_max = panel->x_res;
499 if (cpu_is_omap15xx()) {
500 var->xres = panel->y_res;
501 var->yres = panel->x_res;
508 if (var->xres < xres_min)
509 var->xres = xres_min;
510 if (var->yres < yres_min)
511 var->yres = yres_min;
512 if (var->xres > xres_max)
513 var->xres = xres_max;
514 if (var->yres > yres_max)
515 var->yres = yres_max;
517 if (var->xres_virtual < var->xres)
518 var->xres_virtual = var->xres;
519 if (var->yres_virtual < var->yres)
520 var->yres_virtual = var->yres;
521 max_frame_size = fbdev->mem_desc.region[plane->idx].size;
522 line_size = var->xres_virtual * bpp / 8;
523 if (line_size * var->yres_virtual > max_frame_size) {
524 /* Try to keep yres_virtual first */
525 line_size = max_frame_size / var->yres_virtual;
526 var->xres_virtual = line_size * 8 / bpp;
527 if (var->xres_virtual < var->xres) {
528 /* Still doesn't fit. Shrink yres_virtual too */
529 var->xres_virtual = var->xres;
530 line_size = var->xres * bpp / 8;
531 var->yres_virtual = max_frame_size / line_size;
533 /* Recheck this, as the virtual size changed. */
534 if (var->xres_virtual < var->xres)
535 var->xres = var->xres_virtual;
536 if (var->yres_virtual < var->yres)
537 var->yres = var->yres_virtual;
538 if (var->xres < xres_min || var->yres < yres_min)
541 if (var->xres + var->xoffset > var->xres_virtual)
542 var->xoffset = var->xres_virtual - var->xres;
543 if (var->yres + var->yoffset > var->yres_virtual)
544 var->yoffset = var->yres_virtual - var->yres;
546 if (plane->color_mode == OMAPFB_COLOR_RGB444) {
549 var->red.msb_right = 0;
550 var->green.offset = 4;
551 var->green.length = 4;
552 var->green.msb_right = 0;
553 var->blue.offset = 0;
554 var->blue.length = 4;
555 var->blue.msb_right = 0;
557 var->red.offset = 11;
559 var->red.msb_right = 0;
560 var->green.offset = 5;
561 var->green.length = 6;
562 var->green.msb_right = 0;
563 var->blue.offset = 0;
564 var->blue.length = 5;
565 var->blue.msb_right = 0;
572 /* pixclock in ps, the rest in pixclock */
573 var->pixclock = 10000000 / (panel->pixel_clock / 100);
574 var->left_margin = panel->hfp;
575 var->right_margin = panel->hbp;
576 var->upper_margin = panel->vfp;
577 var->lower_margin = panel->vbp;
578 var->hsync_len = panel->hsw;
579 var->vsync_len = panel->vsw;
581 /* TODO: get these from panel->config */
582 var->vmode = FB_VMODE_NONINTERLACED;
590 * Set new x,y offsets in the virtual display for the visible area and switch
593 static int omapfb_pan_display(struct fb_var_screeninfo *var,
596 struct omapfb_plane_struct *plane = fbi->par;
597 struct omapfb_device *fbdev = plane->fbdev;
600 omapfb_rqueue_lock(fbdev);
601 if (var->xoffset != fbi->var.xoffset ||
602 var->yoffset != fbi->var.yoffset) {
603 struct fb_var_screeninfo *new_var = &fbdev->new_var;
605 memcpy(new_var, &fbi->var, sizeof(*new_var));
606 new_var->xoffset = var->xoffset;
607 new_var->yoffset = var->yoffset;
608 if (set_fb_var(fbi, new_var))
611 memcpy(&fbi->var, new_var, sizeof(*new_var));
612 ctrl_change_mode(fbi);
615 omapfb_rqueue_unlock(fbdev);
620 /* Set mirror to vertical axis and switch to the new mode. */
621 static int omapfb_mirror(struct fb_info *fbi, int mirror)
623 struct omapfb_plane_struct *plane = fbi->par;
624 struct omapfb_device *fbdev = plane->fbdev;
627 omapfb_rqueue_lock(fbdev);
628 mirror = mirror ? 1 : 0;
629 if (cpu_is_omap15xx())
631 else if (mirror != plane->info.mirror) {
632 plane->info.mirror = mirror;
633 r = ctrl_change_mode(fbi);
635 omapfb_rqueue_unlock(fbdev);
641 * Check values in var, try to adjust them in case of out of bound values if
642 * possible, or return error.
644 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
646 struct omapfb_plane_struct *plane = fbi->par;
647 struct omapfb_device *fbdev = plane->fbdev;
650 omapfb_rqueue_lock(fbdev);
651 if (fbdev->ctrl->sync != NULL)
653 r = set_fb_var(fbi, var);
654 omapfb_rqueue_unlock(fbdev);
660 * Switch to a new mode. The parameters for it has been check already by
663 static int omapfb_set_par(struct fb_info *fbi)
665 struct omapfb_plane_struct *plane = fbi->par;
666 struct omapfb_device *fbdev = plane->fbdev;
669 omapfb_rqueue_lock(fbdev);
671 r = ctrl_change_mode(fbi);
672 omapfb_rqueue_unlock(fbdev);
677 static int omapfb_update_window_async(struct fb_info *fbi,
678 struct omapfb_update_window *win,
679 void (*callback)(void *),
683 struct omapfb_plane_struct *plane = fbi->par;
684 struct omapfb_device *fbdev = plane->fbdev;
685 struct fb_var_screeninfo *var = &fbi->var;
687 switch (var->rotate) {
690 xres = fbdev->panel->x_res;
691 yres = fbdev->panel->y_res;
695 xres = fbdev->panel->y_res;
696 yres = fbdev->panel->x_res;
702 if (win->x >= xres || win->y >= yres ||
703 win->out_x > xres || win->out_y > yres)
706 if (!fbdev->ctrl->update_window ||
707 fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
710 if (win->x + win->width > xres)
711 win->width = xres - win->x;
712 if (win->y + win->height > yres)
713 win->height = yres - win->y;
714 if (win->out_x + win->out_width > xres)
715 win->out_width = xres - win->out_x;
716 if (win->out_y + win->out_height > yres)
717 win->out_height = yres - win->out_y;
718 if (!win->width || !win->height || !win->out_width || !win->out_height)
721 return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
724 static int omapfb_update_win(struct fb_info *fbi,
725 struct omapfb_update_window *win)
727 struct omapfb_plane_struct *plane = fbi->par;
730 omapfb_rqueue_lock(plane->fbdev);
731 ret = omapfb_update_window_async(fbi, win, NULL, NULL);
732 omapfb_rqueue_unlock(plane->fbdev);
737 static int omapfb_update_full_screen(struct fb_info *fbi)
739 struct omapfb_plane_struct *plane = fbi->par;
740 struct omapfb_device *fbdev = plane->fbdev;
741 struct omapfb_update_window win;
744 if (!fbdev->ctrl->update_window ||
745 fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
750 win.width = fbi->var.xres;
751 win.height = fbi->var.yres;
754 win.out_width = fbi->var.xres;
755 win.out_height = fbi->var.yres;
758 omapfb_rqueue_lock(fbdev);
759 r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
760 omapfb_rqueue_unlock(fbdev);
765 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
767 struct omapfb_plane_struct *plane = fbi->par;
768 struct omapfb_device *fbdev = plane->fbdev;
769 struct lcd_panel *panel = fbdev->panel;
770 struct omapfb_plane_info old_info;
773 if (pi->pos_x + pi->out_width > panel->x_res ||
774 pi->pos_y + pi->out_height > panel->y_res)
777 omapfb_rqueue_lock(fbdev);
778 if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
780 * This plane's memory was freed, can't enable it
781 * until it's reallocated.
786 old_info = plane->info;
789 r = ctrl_change_mode(fbi);
791 plane->info = old_info;
795 r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
797 plane->info = old_info;
801 omapfb_rqueue_unlock(fbdev);
805 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
807 struct omapfb_plane_struct *plane = fbi->par;
813 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
815 struct omapfb_plane_struct *plane = fbi->par;
816 struct omapfb_device *fbdev = plane->fbdev;
817 struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
821 if (fbdev->ctrl->setup_mem == NULL)
823 if (mi->type != OMAPFB_MEMTYPE_SDRAM)
826 size = PAGE_ALIGN(mi->size);
827 omapfb_rqueue_lock(fbdev);
828 if (plane->info.enabled) {
832 if (rg->size != size || rg->type != mi->type) {
833 struct fb_var_screeninfo *new_var = &fbdev->new_var;
834 unsigned long old_size = rg->size;
835 u8 old_type = rg->type;
841 * size == 0 is a special case, for which we
842 * don't check / adjust the screen parameters.
843 * This isn't a problem since the plane can't
844 * be reenabled unless its size is > 0.
846 if (old_size != size && size) {
848 memcpy(new_var, &fbi->var, sizeof(*new_var));
849 r = set_fb_var(fbi, new_var);
855 if (fbdev->ctrl->sync)
857 r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
859 /* Revert changes. */
866 if (old_size != size) {
868 memcpy(&fbi->var, new_var, sizeof(fbi->var));
872 * Set these explicitly to indicate that the
873 * plane memory is dealloce'd, the other
874 * screen parameters in var / fix are invalid.
876 mutex_lock(&fbi->mm_lock);
877 fbi->fix.smem_start = 0;
878 fbi->fix.smem_len = 0;
879 mutex_unlock(&fbi->mm_lock);
884 omapfb_rqueue_unlock(fbdev);
889 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
891 struct omapfb_plane_struct *plane = fbi->par;
892 struct omapfb_device *fbdev = plane->fbdev;
893 struct omapfb_mem_region *rg;
895 rg = &fbdev->mem_desc.region[plane->idx];
896 memset(mi, 0, sizeof(*mi));
903 static int omapfb_set_color_key(struct omapfb_device *fbdev,
904 struct omapfb_color_key *ck)
908 if (!fbdev->ctrl->set_color_key)
911 omapfb_rqueue_lock(fbdev);
912 r = fbdev->ctrl->set_color_key(ck);
913 omapfb_rqueue_unlock(fbdev);
918 static int omapfb_get_color_key(struct omapfb_device *fbdev,
919 struct omapfb_color_key *ck)
923 if (!fbdev->ctrl->get_color_key)
926 omapfb_rqueue_lock(fbdev);
927 r = fbdev->ctrl->get_color_key(ck);
928 omapfb_rqueue_unlock(fbdev);
933 static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
934 static int notifier_inited;
936 static void omapfb_init_notifier(void)
940 for (i = 0; i < OMAPFB_PLANE_NUM; i++)
941 BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
944 int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
945 omapfb_notifier_callback_t callback,
950 if ((unsigned)omapfb_nb->plane_idx >= OMAPFB_PLANE_NUM)
953 if (!notifier_inited) {
954 omapfb_init_notifier();
958 omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
959 unsigned long, void *))callback;
960 omapfb_nb->data = callback_data;
961 r = blocking_notifier_chain_register(
962 &omapfb_client_list[omapfb_nb->plane_idx],
966 if (omapfb_dev != NULL &&
967 omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
968 omapfb_dev->ctrl->bind_client(omapfb_nb);
973 EXPORT_SYMBOL(omapfb_register_client);
975 int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
977 return blocking_notifier_chain_unregister(
978 &omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
980 EXPORT_SYMBOL(omapfb_unregister_client);
982 void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
986 if (!notifier_inited)
987 /* no client registered yet */
990 for (i = 0; i < OMAPFB_PLANE_NUM; i++)
991 blocking_notifier_call_chain(&omapfb_client_list[i], event,
994 EXPORT_SYMBOL(omapfb_notify_clients);
996 static int omapfb_set_update_mode(struct omapfb_device *fbdev,
997 enum omapfb_update_mode mode)
1001 omapfb_rqueue_lock(fbdev);
1002 r = fbdev->ctrl->set_update_mode(mode);
1003 omapfb_rqueue_unlock(fbdev);
1008 static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
1012 omapfb_rqueue_lock(fbdev);
1013 r = fbdev->ctrl->get_update_mode();
1014 omapfb_rqueue_unlock(fbdev);
1019 static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
1020 struct omapfb_caps *caps)
1022 memset(caps, 0, sizeof(*caps));
1023 fbdev->ctrl->get_caps(plane, caps);
1024 if (fbdev->panel->get_caps)
1025 caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
1028 /* For lcd testing */
1029 void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
1031 omapfb_rqueue_lock(fbdev);
1032 *(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
1033 if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
1034 struct omapfb_update_window win;
1036 memset(&win, 0, sizeof(win));
1041 fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
1043 omapfb_rqueue_unlock(fbdev);
1045 EXPORT_SYMBOL(omapfb_write_first_pixel);
1048 * Ioctl interface. Part of the kernel mode frame buffer API is duplicated
1049 * here to be accessible by user mode code.
1051 static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
1054 struct omapfb_plane_struct *plane = fbi->par;
1055 struct omapfb_device *fbdev = plane->fbdev;
1056 const struct fb_ops *ops = fbi->fbops;
1058 struct omapfb_update_window update_window;
1059 struct omapfb_plane_info plane_info;
1060 struct omapfb_mem_info mem_info;
1061 struct omapfb_color_key color_key;
1062 enum omapfb_update_mode update_mode;
1063 struct omapfb_caps caps;
1064 unsigned int mirror;
1073 if (get_user(p.mirror, (int __user *)arg))
1076 omapfb_mirror(fbi, p.mirror);
1078 case OMAPFB_SYNC_GFX:
1083 case OMAPFB_SET_UPDATE_MODE:
1084 if (get_user(p.update_mode, (int __user *)arg))
1087 r = omapfb_set_update_mode(fbdev, p.update_mode);
1089 case OMAPFB_GET_UPDATE_MODE:
1090 p.update_mode = omapfb_get_update_mode(fbdev);
1091 if (put_user(p.update_mode,
1092 (enum omapfb_update_mode __user *)arg))
1095 case OMAPFB_UPDATE_WINDOW_OLD:
1096 if (copy_from_user(&p.update_window, (void __user *)arg,
1097 sizeof(struct omapfb_update_window_old)))
1100 struct omapfb_update_window *u = &p.update_window;
1103 u->out_width = u->width;
1104 u->out_height = u->height;
1105 memset(u->reserved, 0, sizeof(u->reserved));
1106 r = omapfb_update_win(fbi, u);
1109 case OMAPFB_UPDATE_WINDOW:
1110 if (copy_from_user(&p.update_window, (void __user *)arg,
1111 sizeof(p.update_window)))
1114 r = omapfb_update_win(fbi, &p.update_window);
1116 case OMAPFB_SETUP_PLANE:
1117 if (copy_from_user(&p.plane_info, (void __user *)arg,
1118 sizeof(p.plane_info)))
1121 r = omapfb_setup_plane(fbi, &p.plane_info);
1123 case OMAPFB_QUERY_PLANE:
1124 if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
1126 if (copy_to_user((void __user *)arg, &p.plane_info,
1127 sizeof(p.plane_info)))
1130 case OMAPFB_SETUP_MEM:
1131 if (copy_from_user(&p.mem_info, (void __user *)arg,
1132 sizeof(p.mem_info)))
1135 r = omapfb_setup_mem(fbi, &p.mem_info);
1137 case OMAPFB_QUERY_MEM:
1138 if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
1140 if (copy_to_user((void __user *)arg, &p.mem_info,
1141 sizeof(p.mem_info)))
1144 case OMAPFB_SET_COLOR_KEY:
1145 if (copy_from_user(&p.color_key, (void __user *)arg,
1146 sizeof(p.color_key)))
1149 r = omapfb_set_color_key(fbdev, &p.color_key);
1151 case OMAPFB_GET_COLOR_KEY:
1152 if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
1154 if (copy_to_user((void __user *)arg, &p.color_key,
1155 sizeof(p.color_key)))
1158 case OMAPFB_GET_CAPS:
1159 omapfb_get_caps(fbdev, plane->idx, &p.caps);
1160 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
1163 case OMAPFB_LCD_TEST:
1167 if (get_user(test_num, (int __user *)arg)) {
1171 if (!fbdev->panel->run_test) {
1175 r = fbdev->panel->run_test(fbdev->panel, test_num);
1178 case OMAPFB_CTRL_TEST:
1182 if (get_user(test_num, (int __user *)arg)) {
1186 if (!fbdev->ctrl->run_test) {
1190 r = fbdev->ctrl->run_test(test_num);
1200 static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
1202 struct omapfb_plane_struct *plane = info->par;
1203 struct omapfb_device *fbdev = plane->fbdev;
1206 omapfb_rqueue_lock(fbdev);
1207 r = fbdev->ctrl->mmap(info, vma);
1208 omapfb_rqueue_unlock(fbdev);
1214 * Callback table for the frame buffer framework. Some of these pointers
1215 * will be changed according to the current setting of fb_info->accel_flags.
1217 static struct fb_ops omapfb_ops = {
1218 .owner = THIS_MODULE,
1219 FB_DEFAULT_IOMEM_OPS,
1220 .fb_open = omapfb_open,
1221 .fb_release = omapfb_release,
1222 .fb_setcolreg = omapfb_setcolreg,
1223 .fb_setcmap = omapfb_setcmap,
1224 .fb_blank = omapfb_blank,
1225 .fb_ioctl = omapfb_ioctl,
1226 .fb_check_var = omapfb_check_var,
1227 .fb_set_par = omapfb_set_par,
1228 .fb_pan_display = omapfb_pan_display,
1232 * ---------------------------------------------------------------------------
1234 * ---------------------------------------------------------------------------
1236 /* omapfbX sysfs entries */
1237 static ssize_t omapfb_show_caps_num(struct device *dev,
1238 struct device_attribute *attr, char *buf)
1240 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1243 struct omapfb_caps caps;
1247 while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1248 omapfb_get_caps(fbdev, plane, &caps);
1249 size += scnprintf(&buf[size], PAGE_SIZE - size,
1250 "plane#%d %#010x %#010x %#010x\n",
1251 plane, caps.ctrl, caps.plane_color, caps.wnd_color);
1257 static ssize_t omapfb_show_caps_text(struct device *dev,
1258 struct device_attribute *attr, char *buf)
1260 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1262 struct omapfb_caps caps;
1268 while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
1269 omapfb_get_caps(fbdev, plane, &caps);
1270 size += scnprintf(&buf[size], PAGE_SIZE - size,
1271 "plane#%d:\n", plane);
1272 for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
1273 size < PAGE_SIZE; i++) {
1274 if (ctrl_caps[i].flag & caps.ctrl)
1275 size += scnprintf(&buf[size], PAGE_SIZE - size,
1276 " %s\n", ctrl_caps[i].name);
1278 size += scnprintf(&buf[size], PAGE_SIZE - size,
1279 " plane colors:\n");
1280 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1281 size < PAGE_SIZE; i++) {
1282 if (color_caps[i].flag & caps.plane_color)
1283 size += scnprintf(&buf[size], PAGE_SIZE - size,
1284 " %s\n", color_caps[i].name);
1286 size += scnprintf(&buf[size], PAGE_SIZE - size,
1287 " window colors:\n");
1288 for (i = 0; i < ARRAY_SIZE(color_caps) &&
1289 size < PAGE_SIZE; i++) {
1290 if (color_caps[i].flag & caps.wnd_color)
1291 size += scnprintf(&buf[size], PAGE_SIZE - size,
1292 " %s\n", color_caps[i].name);
1300 static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
1301 static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
1303 /* panel sysfs entries */
1304 static ssize_t omapfb_show_panel_name(struct device *dev,
1305 struct device_attribute *attr, char *buf)
1307 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1309 return sysfs_emit(buf, "%s\n", fbdev->panel->name);
1312 static ssize_t omapfb_show_bklight_level(struct device *dev,
1313 struct device_attribute *attr,
1316 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1319 if (fbdev->panel->get_bklight_level) {
1320 r = sysfs_emit(buf, "%d\n",
1321 fbdev->panel->get_bklight_level(fbdev->panel));
1327 static ssize_t omapfb_store_bklight_level(struct device *dev,
1328 struct device_attribute *attr,
1329 const char *buf, size_t size)
1331 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1334 if (fbdev->panel->set_bklight_level) {
1337 if (sscanf(buf, "%10d", &level) == 1) {
1338 r = fbdev->panel->set_bklight_level(fbdev->panel,
1344 return r ? r : size;
1347 static ssize_t omapfb_show_bklight_max(struct device *dev,
1348 struct device_attribute *attr, char *buf)
1350 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1353 if (fbdev->panel->get_bklight_level) {
1354 r = sysfs_emit(buf, "%d\n",
1355 fbdev->panel->get_bklight_max(fbdev->panel));
1361 static struct device_attribute dev_attr_panel_name =
1362 __ATTR(name, 0444, omapfb_show_panel_name, NULL);
1363 static DEVICE_ATTR(backlight_level, 0664,
1364 omapfb_show_bklight_level, omapfb_store_bklight_level);
1365 static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
1367 static struct attribute *panel_attrs[] = {
1368 &dev_attr_panel_name.attr,
1369 &dev_attr_backlight_level.attr,
1370 &dev_attr_backlight_max.attr,
1374 static const struct attribute_group panel_attr_grp = {
1376 .attrs = panel_attrs,
1379 /* ctrl sysfs entries */
1380 static ssize_t omapfb_show_ctrl_name(struct device *dev,
1381 struct device_attribute *attr, char *buf)
1383 struct omapfb_device *fbdev = dev_get_drvdata(dev);
1385 return sysfs_emit(buf, "%s\n", fbdev->ctrl->name);
1388 static struct device_attribute dev_attr_ctrl_name =
1389 __ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
1391 static struct attribute *ctrl_attrs[] = {
1392 &dev_attr_ctrl_name.attr,
1396 static const struct attribute_group ctrl_attr_grp = {
1398 .attrs = ctrl_attrs,
1401 static int omapfb_register_sysfs(struct omapfb_device *fbdev)
1405 if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
1408 if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
1411 if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
1414 if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
1419 sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1421 device_remove_file(fbdev->dev, &dev_attr_caps_text);
1423 device_remove_file(fbdev->dev, &dev_attr_caps_num);
1425 dev_err(fbdev->dev, "unable to register sysfs interface\n");
1429 static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
1431 sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
1432 sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
1433 device_remove_file(fbdev->dev, &dev_attr_caps_num);
1434 device_remove_file(fbdev->dev, &dev_attr_caps_text);
1438 * ---------------------------------------------------------------------------
1440 * ---------------------------------------------------------------------------
1442 /* Initialize system fb_info object and set the default video mode.
1443 * The frame buffer memory already allocated by lcddma_init
1445 static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
1447 struct fb_var_screeninfo *var = &info->var;
1448 struct fb_fix_screeninfo *fix = &info->fix;
1451 info->fbops = &omapfb_ops;
1453 strscpy(fix->id, MODULE_NAME, sizeof(fix->id));
1455 info->pseudo_palette = fbdev->pseudo_palette;
1457 var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0;
1458 var->xres = def_vxres;
1459 var->yres = def_vyres;
1460 var->xres_virtual = def_vxres;
1461 var->yres_virtual = def_vyres;
1462 var->rotate = def_rotate;
1463 var->bits_per_pixel = fbdev->panel->bpp;
1465 set_fb_var(info, var);
1466 set_fb_fix(info, 1);
1468 r = fb_alloc_cmap(&info->cmap, 16, 0);
1470 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1475 /* Release the fb_info object */
1476 static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
1478 fb_dealloc_cmap(&fbi->cmap);
1481 static void planes_cleanup(struct omapfb_device *fbdev)
1485 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1486 if (fbdev->fb_info[i] == NULL)
1488 fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
1489 framebuffer_release(fbdev->fb_info[i]);
1493 static int planes_init(struct omapfb_device *fbdev)
1495 struct fb_info *fbi;
1499 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1500 struct omapfb_plane_struct *plane;
1501 fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
1504 planes_cleanup(fbdev);
1509 plane->fbdev = fbdev;
1510 plane->info.mirror = def_mirror;
1511 fbdev->fb_info[i] = fbi;
1513 if ((r = fbinfo_init(fbdev, fbi)) < 0) {
1514 framebuffer_release(fbi);
1515 planes_cleanup(fbdev);
1518 plane->info.out_width = fbi->var.xres;
1519 plane->info.out_height = fbi->var.yres;
1525 * Free driver resources. Can be called to rollback an aborted initialization
1528 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
1534 for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
1535 unregister_framebuffer(fbdev->fb_info[i]);
1538 omapfb_unregister_sysfs(fbdev);
1541 if (fbdev->panel->disable)
1542 fbdev->panel->disable(fbdev->panel);
1545 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
1548 planes_cleanup(fbdev);
1551 ctrl_cleanup(fbdev);
1554 if (fbdev->panel->cleanup)
1555 fbdev->panel->cleanup(fbdev->panel);
1558 dev_set_drvdata(fbdev->dev, NULL);
1562 /* nothing to free */
1569 static int omapfb_find_ctrl(struct omapfb_device *fbdev)
1571 struct omapfb_platform_data *conf;
1575 conf = dev_get_platdata(fbdev->dev);
1579 strscpy(name, conf->lcd.ctrl_name, sizeof(name));
1581 if (strcmp(name, "internal") == 0) {
1582 fbdev->ctrl = fbdev->int_ctrl;
1586 for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
1587 dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
1588 if (strcmp(ctrls[i]->name, name) == 0) {
1589 fbdev->ctrl = ctrls[i];
1594 if (fbdev->ctrl == NULL) {
1595 dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
1603 * Called by LDM binding to probe and attach a new device.
1604 * Initialization sequence:
1605 * 1. allocate system omapfb_device structure
1606 * 2. select controller type according to platform configuration
1608 * 3. init LCD controller and LCD DMA
1609 * 4. init system fb_info structure for all planes
1610 * 5. setup video mode for first plane and enable it
1611 * 6. enable LCD panel
1612 * 7. register sysfs attributes
1613 * OMAPFB_ACTIVE: register system fb_info structure for all planes
1615 static int omapfb_do_probe(struct platform_device *pdev,
1616 struct lcd_panel *panel)
1618 struct omapfb_device *fbdev = NULL;
1620 unsigned long phz, hhz, vhz;
1627 if (pdev->num_resources != 2) {
1628 dev_err(&pdev->dev, "probed for an unknown device\n");
1633 if (dev_get_platdata(&pdev->dev) == NULL) {
1634 dev_err(&pdev->dev, "missing platform data\n");
1639 fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
1640 if (fbdev == NULL) {
1642 "unable to allocate memory for device info\n");
1646 fbdev->int_irq = platform_get_irq(pdev, 0);
1647 if (fbdev->int_irq < 0) {
1652 fbdev->ext_irq = platform_get_irq(pdev, 1);
1653 if (fbdev->ext_irq < 0) {
1660 fbdev->dev = &pdev->dev;
1661 fbdev->panel = panel;
1662 fbdev->dssdev = &omapdss_device;
1663 platform_set_drvdata(pdev, fbdev);
1665 mutex_init(&fbdev->rqueue_mutex);
1667 fbdev->int_ctrl = &omap1_int_ctrl;
1668 #ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
1669 fbdev->ext_if = &omap1_ext_if;
1671 if (omapfb_find_ctrl(fbdev) < 0) {
1673 "LCD controller not found, board not supported\n");
1678 if (fbdev->panel->init) {
1679 r = fbdev->panel->init(fbdev->panel, fbdev);
1684 pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
1686 def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
1687 def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
1691 r = ctrl_init(fbdev);
1694 if (fbdev->ctrl->mmap != NULL)
1695 omapfb_ops.fb_mmap = omapfb_mmap;
1698 r = planes_init(fbdev);
1703 #ifdef CONFIG_FB_OMAP_DMA_TUNE
1704 /* Set DMA priority for EMIFF access to highest */
1705 omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
1708 r = ctrl_change_mode(fbdev->fb_info[0]);
1710 dev_err(fbdev->dev, "mode setting failed\n");
1714 /* GFX plane is enabled by default */
1715 r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
1719 omapfb_set_update_mode(fbdev, manual_update ?
1720 OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
1723 if (fbdev->panel->enable) {
1724 r = fbdev->panel->enable(fbdev->panel);
1730 r = omapfb_register_sysfs(fbdev);
1736 for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
1737 r = register_framebuffer(fbdev->fb_info[i]);
1740 "registering framebuffer %d failed\n", i);
1743 vram += fbdev->mem_desc.region[i].size;
1746 fbdev->state = OMAPFB_ACTIVE;
1748 panel = fbdev->panel;
1749 phz = panel->pixel_clock * 1000;
1750 hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
1751 vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
1755 pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
1756 vram, fbdev->mem_desc.region_cnt);
1757 pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
1758 "vfreq %lu.%lu Hz\n",
1759 phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
1764 omapfb_free_resources(fbdev, init_state);
1769 static int omapfb_probe(struct platform_device *pdev)
1773 BUG_ON(fbdev_pdev != NULL);
1775 r = platform_device_register(&omapdss_device);
1777 dev_err(&pdev->dev, "can't register omapdss device\n");
1781 /* Delay actual initialization until the LCD is registered */
1783 if (fbdev_panel != NULL)
1784 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1788 void omapfb_register_panel(struct lcd_panel *panel)
1790 BUG_ON(fbdev_panel != NULL);
1792 fbdev_panel = panel;
1793 if (fbdev_pdev != NULL)
1794 omapfb_do_probe(fbdev_pdev, fbdev_panel);
1796 EXPORT_SYMBOL_GPL(omapfb_register_panel);
1798 /* Called when the device is being detached from the driver */
1799 static void omapfb_remove(struct platform_device *pdev)
1801 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1802 enum omapfb_state saved_state = fbdev->state;
1804 /* FIXME: wait till completion of pending events */
1806 fbdev->state = OMAPFB_DISABLED;
1807 omapfb_free_resources(fbdev, saved_state);
1809 platform_device_unregister(&omapdss_device);
1810 fbdev->dssdev = NULL;
1814 static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
1816 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1819 omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
1824 static int omapfb_resume(struct platform_device *pdev)
1826 struct omapfb_device *fbdev = platform_get_drvdata(pdev);
1829 omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
1833 static struct platform_driver omapfb_driver = {
1834 .probe = omapfb_probe,
1835 .remove_new = omapfb_remove,
1836 .suspend = omapfb_suspend,
1837 .resume = omapfb_resume,
1839 .name = MODULE_NAME,
1845 /* Process kernel command line parameters */
1846 static int __init omapfb_setup(char *options)
1848 char *this_opt = NULL;
1851 pr_debug("omapfb: options %s\n", options);
1853 if (!options || !*options)
1856 while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1857 if (!strncmp(this_opt, "accel", 5))
1859 else if (!strncmp(this_opt, "vram:", 5)) {
1862 vram = (simple_strtoul(this_opt + 5, &suffix, 0));
1863 switch (suffix[0]) {
1875 pr_debug("omapfb: invalid vram suffix %c\n",
1879 def_vram[def_vram_cnt++] = vram;
1881 else if (!strncmp(this_opt, "vxres:", 6))
1882 def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
1883 else if (!strncmp(this_opt, "vyres:", 6))
1884 def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
1885 else if (!strncmp(this_opt, "rotate:", 7))
1886 def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
1887 else if (!strncmp(this_opt, "mirror:", 7))
1888 def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
1889 else if (!strncmp(this_opt, "manual_update", 13))
1892 pr_debug("omapfb: invalid option\n");
1902 /* Register both the driver and the device */
1903 static int __init omapfb_init(void)
1908 if (fb_get_options("omapfb", &option))
1910 omapfb_setup(option);
1912 /* Register the driver with LDM */
1913 if (platform_driver_register(&omapfb_driver)) {
1914 pr_debug("failed to register omapfb driver\n");
1921 static void __exit omapfb_cleanup(void)
1923 platform_driver_unregister(&omapfb_driver);
1926 module_param_named(accel, def_accel, uint, 0664);
1927 module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
1928 module_param_named(vxres, def_vxres, long, 0664);
1929 module_param_named(vyres, def_vyres, long, 0664);
1930 module_param_named(rotate, def_rotate, uint, 0664);
1931 module_param_named(mirror, def_mirror, uint, 0664);
1932 module_param_named(manual_update, manual_update, bool, 0664);
1934 module_init(omapfb_init);
1935 module_exit(omapfb_cleanup);
1937 MODULE_DESCRIPTION("TI OMAP framebuffer driver");
1938 MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
1939 MODULE_LICENSE("GPL");