Fixed MTP to work with TWRP

drivers/video/fbdev/omap2/omapfb/Kconfig

@@ -0,0 +1,27 @@
+menuconfig FB_OMAP2
+        tristate "OMAP2+ frame buffer support"
+        depends on FB && OMAP2_DSS && !DRM_OMAP
+
+	select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3
+        select FB_CFB_FILLRECT
+        select FB_CFB_COPYAREA
+        select FB_CFB_IMAGEBLIT
+        help
+	  Frame buffer driver for OMAP2+ based boards.
+
+config FB_OMAP2_DEBUG_SUPPORT
+        bool "Debug support for OMAP2+ FB"
+	default y
+	depends on FB_OMAP2
+	help
+	  Support for debug output. You have to enable the actual printing
+	  with 'debug' module parameter.
+
+config FB_OMAP2_NUM_FBS
+	int "Number of framebuffers"
+	range 1 10
+	default 3
+	depends on FB_OMAP2
+	help
+	  Select the number of framebuffers created. OMAP2/3 has 3 overlays
+	  so normally this would be 3.

drivers/video/fbdev/omap2/omapfb/Makefile

@@ -0,0 +1,2 @@
+obj-$(CONFIG_FB_OMAP2) += omapfb.o
+omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o

drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c

@@ -0,0 +1,922 @@
+/*
+ * linux/drivers/video/omap2/omapfb-ioctl.c
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/fb.h>
+#include <linux/device.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+#include <linux/mm.h>
+#include <linux/omapfb.h>
+#include <linux/vmalloc.h>
+#include <linux/export.h>
+#include <linux/sizes.h>
+
+#include <video/omapdss.h>
+#include <video/omapvrfb.h>
+
+#include "omapfb.h"
+
+static u8 get_mem_idx(struct omapfb_info *ofbi)
+{
+	if (ofbi->id == ofbi->region->id)
+		return 0;
+
+	return OMAPFB_MEM_IDX_ENABLED | ofbi->region->id;
+}
+
+static struct omapfb2_mem_region *get_mem_region(struct omapfb_info *ofbi,
+						 u8 mem_idx)
+{
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+
+	if (mem_idx & OMAPFB_MEM_IDX_ENABLED)
+		mem_idx &= OMAPFB_MEM_IDX_MASK;
+	else
+		mem_idx = ofbi->id;
+
+	if (mem_idx >= fbdev->num_fbs)
+		return NULL;
+
+	return &fbdev->regions[mem_idx];
+}
+
+static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
+{
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omap_overlay *ovl;
+	struct omap_overlay_info old_info;
+	struct omapfb2_mem_region *old_rg, *new_rg;
+	int r = 0;
+
+	DBG("omapfb_setup_plane\n");
+
+	if (ofbi->num_overlays == 0) {
+		r = -EINVAL;
+		goto out;
+	}
+
+	/* XXX uses only the first overlay */
+	ovl = ofbi->overlays[0];
+
+	old_rg = ofbi->region;
+	new_rg = get_mem_region(ofbi, pi->mem_idx);
+	if (!new_rg) {
+		r = -EINVAL;
+		goto out;
+	}
+
+	/* Take the locks in a specific order to keep lockdep happy */
+	if (old_rg->id < new_rg->id) {
+		omapfb_get_mem_region(old_rg);
+		omapfb_get_mem_region(new_rg);
+	} else if (new_rg->id < old_rg->id) {
+		omapfb_get_mem_region(new_rg);
+		omapfb_get_mem_region(old_rg);
+	} else
+		omapfb_get_mem_region(old_rg);
+
+	if (pi->enabled && !new_rg->size) {
+		/*
+		 * This plane's memory was freed, can't enable it
+		 * until it's reallocated.
+		 */
+		r = -EINVAL;
+		goto put_mem;
+	}
+
+	ovl->get_overlay_info(ovl, &old_info);
+
+	if (old_rg != new_rg) {
+		ofbi->region = new_rg;
+		set_fb_fix(fbi);
+	}
+
+	if (!pi->enabled) {
+		r = ovl->disable(ovl);
+		if (r)
+			goto undo;
+	}
+
+	if (pi->enabled) {
+		r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
+			pi->out_width, pi->out_height);
+		if (r)
+			goto undo;
+	} else {
+		struct omap_overlay_info info;
+
+		ovl->get_overlay_info(ovl, &info);
+
+		info.pos_x = pi->pos_x;
+		info.pos_y = pi->pos_y;
+		info.out_width = pi->out_width;
+		info.out_height = pi->out_height;
+
+		r = ovl->set_overlay_info(ovl, &info);
+		if (r)
+			goto undo;
+	}
+
+	if (ovl->manager)
+		ovl->manager->apply(ovl->manager);
+
+	if (pi->enabled) {
+		r = ovl->enable(ovl);
+		if (r)
+			goto undo;
+	}
+
+	/* Release the locks in a specific order to keep lockdep happy */
+	if (old_rg->id > new_rg->id) {
+		omapfb_put_mem_region(old_rg);
+		omapfb_put_mem_region(new_rg);
+	} else if (new_rg->id > old_rg->id) {
+		omapfb_put_mem_region(new_rg);
+		omapfb_put_mem_region(old_rg);
+	} else
+		omapfb_put_mem_region(old_rg);
+
+	return 0;
+
+ undo:
+	if (old_rg != new_rg) {
+		ofbi->region = old_rg;
+		set_fb_fix(fbi);
+	}
+
+	ovl->set_overlay_info(ovl, &old_info);
+ put_mem:
+	/* Release the locks in a specific order to keep lockdep happy */
+	if (old_rg->id > new_rg->id) {
+		omapfb_put_mem_region(old_rg);
+		omapfb_put_mem_region(new_rg);
+	} else if (new_rg->id > old_rg->id) {
+		omapfb_put_mem_region(new_rg);
+		omapfb_put_mem_region(old_rg);
+	} else
+		omapfb_put_mem_region(old_rg);
+ out:
+	dev_err(fbdev->dev, "setup_plane failed\n");
+
+	return r;
+}
+
+static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
+{
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+
+	if (ofbi->num_overlays == 0) {
+		memset(pi, 0, sizeof(*pi));
+	} else {
+		struct omap_overlay *ovl;
+		struct omap_overlay_info ovli;
+
+		ovl = ofbi->overlays[0];
+		ovl->get_overlay_info(ovl, &ovli);
+
+		pi->pos_x = ovli.pos_x;
+		pi->pos_y = ovli.pos_y;
+		pi->enabled = ovl->is_enabled(ovl);
+		pi->channel_out = 0; /* xxx */
+		pi->mirror = 0;
+		pi->mem_idx = get_mem_idx(ofbi);
+		pi->out_width = ovli.out_width;
+		pi->out_height = ovli.out_height;
+	}
+
+	return 0;
+}
+
+static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
+{
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omap_dss_device *display = fb2display(fbi);
+	struct omapfb2_mem_region *rg;
+	int r = 0, i;
+	size_t size;
+
+	if (mi->type != OMAPFB_MEMTYPE_SDRAM)
+		return -EINVAL;
+
+	size = PAGE_ALIGN(mi->size);
+
+	if (display && display->driver->sync)
+		display->driver->sync(display);
+
+	rg = ofbi->region;
+
+	down_write_nested(&rg->lock, rg->id);
+	atomic_inc(&rg->lock_count);
+
+	if (rg->size == size && rg->type == mi->type)
+		goto out;
+
+	if (atomic_read(&rg->map_count)) {
+		r = -EBUSY;
+		goto out;
+	}
+
+	for (i = 0; i < fbdev->num_fbs; i++) {
+		struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
+		int j;
+
+		if (ofbi2->region != rg)
+			continue;
+
+		for (j = 0; j < ofbi2->num_overlays; j++) {
+			struct omap_overlay *ovl;
+			ovl = ofbi2->overlays[j];
+			if (ovl->is_enabled(ovl)) {
+				r = -EBUSY;
+				goto out;
+			}
+		}
+	}
+
+	r = omapfb_realloc_fbmem(fbi, size, mi->type);
+	if (r) {
+		dev_err(fbdev->dev, "realloc fbmem failed\n");
+		goto out;
+	}
+
+ out:
+	atomic_dec(&rg->lock_count);
+	up_write(&rg->lock);
+
+	return r;
+}
+
+static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
+{
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_mem_region *rg;
+
+	rg = omapfb_get_mem_region(ofbi->region);
+	memset(mi, 0, sizeof(*mi));
+
+	mi->size = rg->size;
+	mi->type = rg->type;
+
+	omapfb_put_mem_region(rg);
+
+	return 0;
+}
+
+static int omapfb_update_window(struct fb_info *fbi,
+		u32 x, u32 y, u32 w, u32 h)
+{
+	struct omap_dss_device *display = fb2display(fbi);
+	u16 dw, dh;
+
+	if (!display)
+		return 0;
+
+	if (w == 0 || h == 0)
+		return 0;
+
+	display->driver->get_resolution(display, &dw, &dh);
+
+	if (x + w > dw || y + h > dh)
+		return -EINVAL;
+
+	return display->driver->update(display, x, y, w, h);
+}
+
+int omapfb_set_update_mode(struct fb_info *fbi,
+				   enum omapfb_update_mode mode)
+{
+	struct omap_dss_device *display = fb2display(fbi);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omapfb_display_data *d;
+	int r;
+
+	if (!display)
+		return -EINVAL;
+
+	if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
+		return -EINVAL;
+
+	omapfb_lock(fbdev);
+
+	d = get_display_data(fbdev, display);
+
+	if (d->update_mode == mode) {
+		omapfb_unlock(fbdev);
+		return 0;
+	}
+
+	r = 0;
+
+	if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
+		if (mode == OMAPFB_AUTO_UPDATE)
+			omapfb_start_auto_update(fbdev, display);
+		else /* MANUAL_UPDATE */
+			omapfb_stop_auto_update(fbdev, display);
+
+		d->update_mode = mode;
+	} else { /* AUTO_UPDATE */
+		if (mode == OMAPFB_MANUAL_UPDATE)
+			r = -EINVAL;
+	}
+
+	omapfb_unlock(fbdev);
+
+	return r;
+}
+
+int omapfb_get_update_mode(struct fb_info *fbi,
+		enum omapfb_update_mode *mode)
+{
+	struct omap_dss_device *display = fb2display(fbi);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omapfb_display_data *d;
+
+	if (!display)
+		return -EINVAL;
+
+	omapfb_lock(fbdev);
+
+	d = get_display_data(fbdev, display);
+
+	*mode = d->update_mode;
+
+	omapfb_unlock(fbdev);
+
+	return 0;
+}
+
+/* XXX this color key handling is a hack... */
+static struct omapfb_color_key omapfb_color_keys[2];
+
+static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
+		struct omapfb_color_key *ck)
+{
+	struct omap_overlay_manager_info info;
+	enum omap_dss_trans_key_type kt;
+	int r;
+
+	mgr->get_manager_info(mgr, &info);
+
+	if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
+		info.trans_enabled = false;
+		omapfb_color_keys[mgr->id] = *ck;
+
+		r = mgr->set_manager_info(mgr, &info);
+		if (r)
+			return r;
+
+		r = mgr->apply(mgr);
+
+		return r;
+	}
+
+	switch (ck->key_type) {
+	case OMAPFB_COLOR_KEY_GFX_DST:
+		kt = OMAP_DSS_COLOR_KEY_GFX_DST;
+		break;
+	case OMAPFB_COLOR_KEY_VID_SRC:
+		kt = OMAP_DSS_COLOR_KEY_VID_SRC;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	info.default_color = ck->background;
+	info.trans_key = ck->trans_key;
+	info.trans_key_type = kt;
+	info.trans_enabled = true;
+
+	omapfb_color_keys[mgr->id] = *ck;
+
+	r = mgr->set_manager_info(mgr, &info);
+	if (r)
+		return r;
+
+	r = mgr->apply(mgr);
+
+	return r;
+}
+
+static int omapfb_set_color_key(struct fb_info *fbi,
+		struct omapfb_color_key *ck)
+{
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	int r;
+	int i;
+	struct omap_overlay_manager *mgr = NULL;
+
+	omapfb_lock(fbdev);
+
+	for (i = 0; i < ofbi->num_overlays; i++) {
+		if (ofbi->overlays[i]->manager) {
+			mgr = ofbi->overlays[i]->manager;
+			break;
+		}
+	}
+
+	if (!mgr) {
+		r = -EINVAL;
+		goto err;
+	}
+
+	r = _omapfb_set_color_key(mgr, ck);
+err:
+	omapfb_unlock(fbdev);
+
+	return r;
+}
+
+static int omapfb_get_color_key(struct fb_info *fbi,
+		struct omapfb_color_key *ck)
+{
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omap_overlay_manager *mgr = NULL;
+	int r = 0;
+	int i;
+
+	omapfb_lock(fbdev);
+
+	for (i = 0; i < ofbi->num_overlays; i++) {
+		if (ofbi->overlays[i]->manager) {
+			mgr = ofbi->overlays[i]->manager;
+			break;
+		}
+	}
+
+	if (!mgr) {
+		r = -EINVAL;
+		goto err;
+	}
+
+	*ck = omapfb_color_keys[mgr->id];
+err:
+	omapfb_unlock(fbdev);
+
+	return r;
+}
+
+static int omapfb_memory_read(struct fb_info *fbi,
+		struct omapfb_memory_read *mr)
+{
+	struct omap_dss_device *display = fb2display(fbi);
+	void *buf;
+	int r;
+
+	if (!display || !display->driver->memory_read)
+		return -ENOENT;
+
+	if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
+		return -EFAULT;
+
+	if (mr->w * mr->h * 3 > mr->buffer_size)
+		return -EINVAL;
+
+	buf = vmalloc(mr->buffer_size);
+	if (!buf) {
+		DBG("vmalloc failed\n");
+		return -ENOMEM;
+	}
+
+	r = display->driver->memory_read(display, buf, mr->buffer_size,
+			mr->x, mr->y, mr->w, mr->h);
+
+	if (r > 0) {
+		if (copy_to_user(mr->buffer, buf, mr->buffer_size))
+			r = -EFAULT;
+	}
+
+	vfree(buf);
+
+	return r;
+}
+
+static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
+			     struct omapfb_ovl_colormode *mode)
+{
+	int ovl_idx = mode->overlay_idx;
+	int mode_idx = mode->mode_idx;
+	struct omap_overlay *ovl;
+	enum omap_color_mode supported_modes;
+	struct fb_var_screeninfo var;
+	int i;
+
+	if (ovl_idx >= fbdev->num_overlays)
+		return -ENODEV;
+	ovl = fbdev->overlays[ovl_idx];
+	supported_modes = ovl->supported_modes;
+
+	mode_idx = mode->mode_idx;
+
+	for (i = 0; i < sizeof(supported_modes) * 8; i++) {
+		if (!(supported_modes & (1 << i)))
+			continue;
+		/*
+		 * It's possible that the FB doesn't support a mode
+		 * that is supported by the overlay, so call the
+		 * following here.
+		 */
+		if (dss_mode_to_fb_mode(1 << i, &var) < 0)
+			continue;
+
+		mode_idx--;
+		if (mode_idx < 0)
+			break;
+	}
+
+	if (i == sizeof(supported_modes) * 8)
+		return -ENOENT;
+
+	mode->bits_per_pixel = var.bits_per_pixel;
+	mode->nonstd = var.nonstd;
+	mode->red = var.red;
+	mode->green = var.green;
+	mode->blue = var.blue;
+	mode->transp = var.transp;
+
+	return 0;
+}
+
+static int omapfb_wait_for_go(struct fb_info *fbi)
+{
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	int r = 0;
+	int i;
+
+	for (i = 0; i < ofbi->num_overlays; ++i) {
+		struct omap_overlay *ovl = ofbi->overlays[i];
+		r = ovl->wait_for_go(ovl);
+		if (r)
+			break;
+	}
+
+	return r;
+}
+
+int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
+{
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omap_dss_device *display = fb2display(fbi);
+	struct omap_overlay_manager *mgr;
+
+	union {
+		struct omapfb_update_window_old	uwnd_o;
+		struct omapfb_update_window	uwnd;
+		struct omapfb_plane_info	plane_info;
+		struct omapfb_caps		caps;
+		struct omapfb_mem_info          mem_info;
+		struct omapfb_color_key		color_key;
+		struct omapfb_ovl_colormode	ovl_colormode;
+		enum omapfb_update_mode		update_mode;
+		int test_num;
+		struct omapfb_memory_read	memory_read;
+		struct omapfb_vram_info		vram_info;
+		struct omapfb_tearsync_info	tearsync_info;
+		struct omapfb_display_info	display_info;
+		u32				crt;
+	} p;
+
+	int r = 0;
+
+	switch (cmd) {
+	case OMAPFB_SYNC_GFX:
+		DBG("ioctl SYNC_GFX\n");
+		if (!display || !display->driver->sync) {
+			/* DSS1 never returns an error here, so we neither */
+			/*r = -EINVAL;*/
+			break;
+		}
+
+		r = display->driver->sync(display);
+		break;
+
+	case OMAPFB_UPDATE_WINDOW_OLD:
+		DBG("ioctl UPDATE_WINDOW_OLD\n");
+		if (!display || !display->driver->update) {
+			r = -EINVAL;
+			break;
+		}
+
+		if (copy_from_user(&p.uwnd_o,
+					(void __user *)arg,
+					sizeof(p.uwnd_o))) {
+			r = -EFAULT;
+			break;
+		}
+
+		r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
+				p.uwnd_o.width, p.uwnd_o.height);
+		break;
+
+	case OMAPFB_UPDATE_WINDOW:
+		DBG("ioctl UPDATE_WINDOW\n");
+		if (!display || !display->driver->update) {
+			r = -EINVAL;
+			break;
+		}
+
+		if (copy_from_user(&p.uwnd, (void __user *)arg,
+					sizeof(p.uwnd))) {
+			r = -EFAULT;
+			break;
+		}
+
+		r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
+				p.uwnd.width, p.uwnd.height);
+		break;
+
+	case OMAPFB_SETUP_PLANE:
+		DBG("ioctl SETUP_PLANE\n");
+		if (copy_from_user(&p.plane_info, (void __user *)arg,
+					sizeof(p.plane_info)))
+			r = -EFAULT;
+		else
+			r = omapfb_setup_plane(fbi, &p.plane_info);
+		break;
+
+	case OMAPFB_QUERY_PLANE:
+		DBG("ioctl QUERY_PLANE\n");
+		r = omapfb_query_plane(fbi, &p.plane_info);
+		if (r < 0)
+			break;
+		if (copy_to_user((void __user *)arg, &p.plane_info,
+					sizeof(p.plane_info)))
+			r = -EFAULT;
+		break;
+
+	case OMAPFB_SETUP_MEM:
+		DBG("ioctl SETUP_MEM\n");
+		if (copy_from_user(&p.mem_info, (void __user *)arg,
+					sizeof(p.mem_info)))
+			r = -EFAULT;
+		else
+			r = omapfb_setup_mem(fbi, &p.mem_info);
+		break;
+
+	case OMAPFB_QUERY_MEM:
+		DBG("ioctl QUERY_MEM\n");
+		r = omapfb_query_mem(fbi, &p.mem_info);
+		if (r < 0)
+			break;
+		if (copy_to_user((void __user *)arg, &p.mem_info,
+					sizeof(p.mem_info)))
+			r = -EFAULT;
+		break;
+
+	case OMAPFB_GET_CAPS:
+		DBG("ioctl GET_CAPS\n");
+		if (!display) {
+			r = -EINVAL;
+			break;
+		}
+
+		memset(&p.caps, 0, sizeof(p.caps));
+		if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
+			p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
+		if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
+			p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
+
+		if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
+			r = -EFAULT;
+		break;
+
+	case OMAPFB_GET_OVERLAY_COLORMODE:
+		DBG("ioctl GET_OVERLAY_COLORMODE\n");
+		if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
+				   sizeof(p.ovl_colormode))) {
+			r = -EFAULT;
+			break;
+		}
+		r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
+		if (r < 0)
+			break;
+		if (copy_to_user((void __user *)arg, &p.ovl_colormode,
+				 sizeof(p.ovl_colormode)))
+			r = -EFAULT;
+		break;
+
+	case OMAPFB_SET_UPDATE_MODE:
+		DBG("ioctl SET_UPDATE_MODE\n");
+		if (get_user(p.update_mode, (int __user *)arg))
+			r = -EFAULT;
+		else
+			r = omapfb_set_update_mode(fbi, p.update_mode);
+		break;
+
+	case OMAPFB_GET_UPDATE_MODE:
+		DBG("ioctl GET_UPDATE_MODE\n");
+		r = omapfb_get_update_mode(fbi, &p.update_mode);
+		if (r)
+			break;
+		if (put_user(p.update_mode,
+					(enum omapfb_update_mode __user *)arg))
+			r = -EFAULT;
+		break;
+
+	case OMAPFB_SET_COLOR_KEY:
+		DBG("ioctl SET_COLOR_KEY\n");
+		if (copy_from_user(&p.color_key, (void __user *)arg,
+				   sizeof(p.color_key)))
+			r = -EFAULT;
+		else
+			r = omapfb_set_color_key(fbi, &p.color_key);
+		break;
+
+	case OMAPFB_GET_COLOR_KEY:
+		DBG("ioctl GET_COLOR_KEY\n");
+		r = omapfb_get_color_key(fbi, &p.color_key);
+		if (r)
+			break;
+		if (copy_to_user((void __user *)arg, &p.color_key,
+				 sizeof(p.color_key)))
+			r = -EFAULT;
+		break;
+
+	case FBIO_WAITFORVSYNC:
+		if (get_user(p.crt, (__u32 __user *)arg)) {
+			r = -EFAULT;
+			break;
+		}
+		if (p.crt != 0) {
+			r = -ENODEV;
+			break;
+		}
+		/* FALLTHROUGH */
+
+	case OMAPFB_WAITFORVSYNC:
+		DBG("ioctl WAITFORVSYNC\n");
+
+		if (!display) {
+			r = -EINVAL;
+			break;
+		}
+
+		mgr = omapdss_find_mgr_from_display(display);
+		if (!mgr) {
+			r = -EINVAL;
+			break;
+		}
+
+		r = mgr->wait_for_vsync(mgr);
+		break;
+
+	case OMAPFB_WAITFORGO:
+		DBG("ioctl WAITFORGO\n");
+		if (!display) {
+			r = -EINVAL;
+			break;
+		}
+
+		r = omapfb_wait_for_go(fbi);
+		break;
+
+	/* LCD and CTRL tests do the same thing for backward
+	 * compatibility */
+	case OMAPFB_LCD_TEST:
+		DBG("ioctl LCD_TEST\n");
+		if (get_user(p.test_num, (int __user *)arg)) {
+			r = -EFAULT;
+			break;
+		}
+		if (!display || !display->driver->run_test) {
+			r = -EINVAL;
+			break;
+		}
+
+		r = display->driver->run_test(display, p.test_num);
+
+		break;
+
+	case OMAPFB_CTRL_TEST:
+		DBG("ioctl CTRL_TEST\n");
+		if (get_user(p.test_num, (int __user *)arg)) {
+			r = -EFAULT;
+			break;
+		}
+		if (!display || !display->driver->run_test) {
+			r = -EINVAL;
+			break;
+		}
+
+		r = display->driver->run_test(display, p.test_num);
+
+		break;
+
+	case OMAPFB_MEMORY_READ:
+		DBG("ioctl MEMORY_READ\n");
+
+		if (copy_from_user(&p.memory_read, (void __user *)arg,
+					sizeof(p.memory_read))) {
+			r = -EFAULT;
+			break;
+		}
+
+		r = omapfb_memory_read(fbi, &p.memory_read);
+
+		break;
+
+	case OMAPFB_GET_VRAM_INFO: {
+		DBG("ioctl GET_VRAM_INFO\n");
+
+		/*
+		 * We don't have the ability to get this vram info anymore.
+		 * Fill in something that should keep the applications working.
+		 */
+		p.vram_info.total = SZ_1M * 64;
+		p.vram_info.free = SZ_1M * 64;
+		p.vram_info.largest_free_block = SZ_1M * 64;
+
+		if (copy_to_user((void __user *)arg, &p.vram_info,
+					sizeof(p.vram_info)))
+			r = -EFAULT;
+		break;
+	}
+
+	case OMAPFB_SET_TEARSYNC: {
+		DBG("ioctl SET_TEARSYNC\n");
+
+		if (copy_from_user(&p.tearsync_info, (void __user *)arg,
+					sizeof(p.tearsync_info))) {
+			r = -EFAULT;
+			break;
+		}
+
+		if (!display || !display->driver->enable_te) {
+			r = -ENODEV;
+			break;
+		}
+
+		r = display->driver->enable_te(display,
+				!!p.tearsync_info.enabled);
+
+		break;
+	}
+
+	case OMAPFB_GET_DISPLAY_INFO: {
+		u16 xres, yres;
+
+		DBG("ioctl GET_DISPLAY_INFO\n");
+
+		if (display == NULL) {
+			r = -ENODEV;
+			break;
+		}
+
+		display->driver->get_resolution(display, &xres, &yres);
+
+		p.display_info.xres = xres;
+		p.display_info.yres = yres;
+
+		if (display->driver->get_dimensions) {
+			u32 w, h;
+			display->driver->get_dimensions(display, &w, &h);
+			p.display_info.width = w;
+			p.display_info.height = h;
+		} else {
+			p.display_info.width = 0;
+			p.display_info.height = 0;
+		}
+
+		if (copy_to_user((void __user *)arg, &p.display_info,
+					sizeof(p.display_info)))
+			r = -EFAULT;
+		break;
+	}
+
+	default:
+		dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
+		r = -EINVAL;
+	}
+
+	if (r < 0)
+		DBG("ioctl failed: %d\n", r);
+
+	return r;
+}
+
+

drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c

@@ -0,0 +1,605 @@
+/*
+ * linux/drivers/video/omap2/omapfb-sysfs.c
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/fb.h>
+#include <linux/sysfs.h>
+#include <linux/device.h>
+#include <linux/uaccess.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/omapfb.h>
+
+#include <video/omapdss.h>
+#include <video/omapvrfb.h>
+
+#include "omapfb.h"
+
+static ssize_t show_rotate_type(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->rotation_type);
+}
+
+static ssize_t store_rotate_type(struct device *dev,
+		struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_mem_region *rg;
+	int rot_type;
+	int r;
+
+	r = kstrtoint(buf, 0, &rot_type);
+	if (r)
+		return r;
+
+	if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB)
+		return -EINVAL;
+
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+
+	r = 0;
+	if (rot_type == ofbi->rotation_type)
+		goto out;
+
+	rg = omapfb_get_mem_region(ofbi->region);
+
+	if (rg->size) {
+		r = -EBUSY;
+		goto put_region;
+	}
+
+	ofbi->rotation_type = rot_type;
+
+	/*
+	 * Since the VRAM for this FB is not allocated at the moment we don't
+	 * need to do any further parameter checking at this point.
+	 */
+put_region:
+	omapfb_put_mem_region(rg);
+out:
+	unlock_fb_info(fbi);
+
+	return r ? r : count;
+}
+
+
+static ssize_t show_mirror(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->mirror);
+}
+
+static ssize_t store_mirror(struct device *dev,
+		struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	bool mirror;
+	int r;
+	struct fb_var_screeninfo new_var;
+
+	r = strtobool(buf, &mirror);
+	if (r)
+		return r;
+
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+
+	ofbi->mirror = mirror;
+
+	omapfb_get_mem_region(ofbi->region);
+
+	memcpy(&new_var, &fbi->var, sizeof(new_var));
+	r = check_fb_var(fbi, &new_var);
+	if (r)
+		goto out;
+	memcpy(&fbi->var, &new_var, sizeof(fbi->var));
+
+	set_fb_fix(fbi);
+
+	r = omapfb_apply_changes(fbi, 0);
+	if (r)
+		goto out;
+
+	r = count;
+out:
+	omapfb_put_mem_region(ofbi->region);
+
+	unlock_fb_info(fbi);
+
+	return r;
+}
+
+static ssize_t show_overlays(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	ssize_t l = 0;
+	int t;
+
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+	omapfb_lock(fbdev);
+
+	for (t = 0; t < ofbi->num_overlays; t++) {
+		struct omap_overlay *ovl = ofbi->overlays[t];
+		int ovlnum;
+
+		for (ovlnum = 0; ovlnum < fbdev->num_overlays; ++ovlnum)
+			if (ovl == fbdev->overlays[ovlnum])
+				break;
+
+		l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
+				t == 0 ? "" : ",", ovlnum);
+	}
+
+	l += snprintf(buf + l, PAGE_SIZE - l, "\n");
+
+	omapfb_unlock(fbdev);
+	unlock_fb_info(fbi);
+
+	return l;
+}
+
+static struct omapfb_info *get_overlay_fb(struct omapfb2_device *fbdev,
+		struct omap_overlay *ovl)
+{
+	int i, t;
+
+	for (i = 0; i < fbdev->num_fbs; i++) {
+		struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
+
+		for (t = 0; t < ofbi->num_overlays; t++) {
+			if (ofbi->overlays[t] == ovl)
+				return ofbi;
+		}
+	}
+
+	return NULL;
+}
+
+static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omap_overlay *ovls[OMAPFB_MAX_OVL_PER_FB];
+	struct omap_overlay *ovl;
+	int num_ovls, r, i;
+	int len;
+	bool added = false;
+
+	num_ovls = 0;
+
+	len = strlen(buf);
+	if (buf[len - 1] == '\n')
+		len = len - 1;
+
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+	omapfb_lock(fbdev);
+
+	if (len > 0) {
+		char *p = (char *)buf;
+		int ovlnum;
+
+		while (p < buf + len) {
+			int found;
+			if (num_ovls == OMAPFB_MAX_OVL_PER_FB) {
+				r = -EINVAL;
+				goto out;
+			}
+
+			ovlnum = simple_strtoul(p, &p, 0);
+			if (ovlnum > fbdev->num_overlays) {
+				r = -EINVAL;
+				goto out;
+			}
+
+			found = 0;
+			for (i = 0; i < num_ovls; ++i) {
+				if (ovls[i] == fbdev->overlays[ovlnum]) {
+					found = 1;
+					break;
+				}
+			}
+
+			if (!found)
+				ovls[num_ovls++] = fbdev->overlays[ovlnum];
+
+			p++;
+		}
+	}
+
+	for (i = 0; i < num_ovls; ++i) {
+		struct omapfb_info *ofbi2 = get_overlay_fb(fbdev, ovls[i]);
+		if (ofbi2 && ofbi2 != ofbi) {
+			dev_err(fbdev->dev, "overlay already in use\n");
+			r = -EINVAL;
+			goto out;
+		}
+	}
+
+	/* detach unused overlays */
+	for (i = 0; i < ofbi->num_overlays; ++i) {
+		int t, found;
+
+		ovl = ofbi->overlays[i];
+
+		found = 0;
+
+		for (t = 0; t < num_ovls; ++t) {
+			if (ovl == ovls[t]) {
+				found = 1;
+				break;
+			}
+		}
+
+		if (found)
+			continue;
+
+		DBG("detaching %d\n", ofbi->overlays[i]->id);
+
+		omapfb_get_mem_region(ofbi->region);
+
+		omapfb_overlay_enable(ovl, 0);
+
+		if (ovl->manager)
+			ovl->manager->apply(ovl->manager);
+
+		omapfb_put_mem_region(ofbi->region);
+
+		for (t = i + 1; t < ofbi->num_overlays; t++) {
+			ofbi->rotation[t-1] = ofbi->rotation[t];
+			ofbi->overlays[t-1] = ofbi->overlays[t];
+		}
+
+		ofbi->num_overlays--;
+		i--;
+	}
+
+	for (i = 0; i < num_ovls; ++i) {
+		int t, found;
+
+		ovl = ovls[i];
+
+		found = 0;
+
+		for (t = 0; t < ofbi->num_overlays; ++t) {
+			if (ovl == ofbi->overlays[t]) {
+				found = 1;
+				break;
+			}
+		}
+
+		if (found)
+			continue;
+		ofbi->rotation[ofbi->num_overlays] = 0;
+		ofbi->overlays[ofbi->num_overlays++] = ovl;
+
+		added = true;
+	}
+
+	if (added) {
+		omapfb_get_mem_region(ofbi->region);
+
+		r = omapfb_apply_changes(fbi, 0);
+
+		omapfb_put_mem_region(ofbi->region);
+
+		if (r)
+			goto out;
+	}
+
+	r = count;
+out:
+	omapfb_unlock(fbdev);
+	unlock_fb_info(fbi);
+
+	return r;
+}
+
+static ssize_t show_overlays_rotate(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	ssize_t l = 0;
+	int t;
+
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+
+	for (t = 0; t < ofbi->num_overlays; t++) {
+		l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
+				t == 0 ? "" : ",", ofbi->rotation[t]);
+	}
+
+	l += snprintf(buf + l, PAGE_SIZE - l, "\n");
+
+	unlock_fb_info(fbi);
+
+	return l;
+}
+
+static ssize_t store_overlays_rotate(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	int num_ovls = 0, r, i;
+	int len;
+	bool changed = false;
+	u8 rotation[OMAPFB_MAX_OVL_PER_FB];
+
+	len = strlen(buf);
+	if (buf[len - 1] == '\n')
+		len = len - 1;
+
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+
+	if (len > 0) {
+		char *p = (char *)buf;
+
+		while (p < buf + len) {
+			int rot;
+
+			if (num_ovls == ofbi->num_overlays) {
+				r = -EINVAL;
+				goto out;
+			}
+
+			rot = simple_strtoul(p, &p, 0);
+			if (rot < 0 || rot > 3) {
+				r = -EINVAL;
+				goto out;
+			}
+
+			if (ofbi->rotation[num_ovls] != rot)
+				changed = true;
+
+			rotation[num_ovls++] = rot;
+
+			p++;
+		}
+	}
+
+	if (num_ovls != ofbi->num_overlays) {
+		r = -EINVAL;
+		goto out;
+	}
+
+	if (changed) {
+		for (i = 0; i < num_ovls; ++i)
+			ofbi->rotation[i] = rotation[i];
+
+		omapfb_get_mem_region(ofbi->region);
+
+		r = omapfb_apply_changes(fbi, 0);
+
+		omapfb_put_mem_region(ofbi->region);
+
+		if (r)
+			goto out;
+
+		/* FIXME error handling? */
+	}
+
+	r = count;
+out:
+	unlock_fb_info(fbi);
+
+	return r;
+}
+
+static ssize_t show_size(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+
+	return snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region->size);
+}
+
+static ssize_t store_size(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omapfb2_device *fbdev = ofbi->fbdev;
+	struct omap_dss_device *display = fb2display(fbi);
+	struct omapfb2_mem_region *rg;
+	unsigned long size;
+	int r;
+	int i;
+
+	r = kstrtoul(buf, 0, &size);
+	if (r)
+		return r;
+
+	size = PAGE_ALIGN(size);
+
+	if (!lock_fb_info(fbi))
+		return -ENODEV;
+
+	if (display && display->driver->sync)
+		display->driver->sync(display);
+
+	rg = ofbi->region;
+
+	down_write_nested(&rg->lock, rg->id);
+	atomic_inc(&rg->lock_count);
+
+	if (atomic_read(&rg->map_count)) {
+		r = -EBUSY;
+		goto out;
+	}
+
+	for (i = 0; i < fbdev->num_fbs; i++) {
+		struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
+		int j;
+
+		if (ofbi2->region != rg)
+			continue;
+
+		for (j = 0; j < ofbi2->num_overlays; j++) {
+			struct omap_overlay *ovl;
+			ovl = ofbi2->overlays[j];
+			if (ovl->is_enabled(ovl)) {
+				r = -EBUSY;
+				goto out;
+			}
+		}
+	}
+
+	if (size != ofbi->region->size) {
+		r = omapfb_realloc_fbmem(fbi, size, ofbi->region->type);
+		if (r) {
+			dev_err(dev, "realloc fbmem failed\n");
+			goto out;
+		}
+	}
+
+	r = count;
+out:
+	atomic_dec(&rg->lock_count);
+	up_write(&rg->lock);
+
+	unlock_fb_info(fbi);
+
+	return r;
+}
+
+static ssize_t show_phys(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+
+	return snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region->paddr);
+}
+
+static ssize_t show_virt(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+
+	return snprintf(buf, PAGE_SIZE, "%p\n", ofbi->region->vaddr);
+}
+
+static ssize_t show_upd_mode(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	enum omapfb_update_mode mode;
+	int r;
+
+	r = omapfb_get_update_mode(fbi, &mode);
+
+	if (r)
+		return r;
+
+	return snprintf(buf, PAGE_SIZE, "%u\n", (unsigned)mode);
+}
+
+static ssize_t store_upd_mode(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct fb_info *fbi = dev_get_drvdata(dev);
+	unsigned mode;
+	int r;
+
+	r = kstrtouint(buf, 0, &mode);
+	if (r)
+		return r;
+
+	r = omapfb_set_update_mode(fbi, mode);
+	if (r)
+		return r;
+
+	return count;
+}
+
+static struct device_attribute omapfb_attrs[] = {
+	__ATTR(rotate_type, S_IRUGO | S_IWUSR, show_rotate_type,
+			store_rotate_type),
+	__ATTR(mirror, S_IRUGO | S_IWUSR, show_mirror, store_mirror),
+	__ATTR(size, S_IRUGO | S_IWUSR, show_size, store_size),
+	__ATTR(overlays, S_IRUGO | S_IWUSR, show_overlays, store_overlays),
+	__ATTR(overlays_rotate, S_IRUGO | S_IWUSR, show_overlays_rotate,
+			store_overlays_rotate),
+	__ATTR(phys_addr, S_IRUGO, show_phys, NULL),
+	__ATTR(virt_addr, S_IRUGO, show_virt, NULL),
+	__ATTR(update_mode, S_IRUGO | S_IWUSR, show_upd_mode, store_upd_mode),
+};
+
+int omapfb_create_sysfs(struct omapfb2_device *fbdev)
+{
+	int i;
+	int r;
+
+	DBG("create sysfs for fbs\n");
+	for (i = 0; i < fbdev->num_fbs; i++) {
+		int t;
+		for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) {
+			r = device_create_file(fbdev->fbs[i]->dev,
+					&omapfb_attrs[t]);
+
+			if (r) {
+				dev_err(fbdev->dev, "failed to create sysfs "
+						"file\n");
+				return r;
+			}
+		}
+	}
+
+	return 0;
+}
+
+void omapfb_remove_sysfs(struct omapfb2_device *fbdev)
+{
+	int i, t;
+
+	DBG("remove sysfs for fbs\n");
+	for (i = 0; i < fbdev->num_fbs; i++) {
+		for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++)
+			device_remove_file(fbdev->fbs[i]->dev,
+					&omapfb_attrs[t]);
+	}
+}
+

drivers/video/fbdev/omap2/omapfb/omapfb.h

@@ -0,0 +1,208 @@
+/*
+ * linux/drivers/video/omap2/omapfb.h
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
+#define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
+
+#ifdef CONFIG_FB_OMAP2_DEBUG_SUPPORT
+#define DEBUG
+#endif
+
+#include <linux/rwsem.h>
+#include <linux/dma-attrs.h>
+#include <linux/dma-mapping.h>
+
+#include <video/omapdss.h>
+
+#ifdef DEBUG
+extern bool omapfb_debug;
+#define DBG(format, ...) \
+	do { \
+		if (omapfb_debug) \
+			printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__); \
+	} while (0)
+#else
+#define DBG(format, ...)
+#endif
+
+#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par))
+
+/* max number of overlays to which a framebuffer data can be direct */
+#define OMAPFB_MAX_OVL_PER_FB 3
+
+struct omapfb2_mem_region {
+	int             id;
+	struct dma_attrs attrs;
+	void		*token;
+	dma_addr_t	dma_handle;
+	u32		paddr;
+	void __iomem	*vaddr;
+	struct vrfb	vrfb;
+	unsigned long	size;
+	u8		type;		/* OMAPFB_PLANE_MEM_* */
+	bool		alloc;		/* allocated by the driver */
+	bool		map;		/* kernel mapped by the driver */
+	atomic_t	map_count;
+	struct rw_semaphore lock;
+	atomic_t	lock_count;
+};
+
+/* appended to fb_info */
+struct omapfb_info {
+	int id;
+	struct omapfb2_mem_region *region;
+	int num_overlays;
+	struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB];
+	struct omapfb2_device *fbdev;
+	enum omap_dss_rotation_type rotation_type;
+	u8 rotation[OMAPFB_MAX_OVL_PER_FB];
+	bool mirror;
+};
+
+struct omapfb_display_data {
+	struct omapfb2_device *fbdev;
+	struct omap_dss_device *dssdev;
+	u8 bpp_override;
+	enum omapfb_update_mode update_mode;
+	bool auto_update_work_enabled;
+	struct delayed_work auto_update_work;
+};
+
+struct omapfb2_device {
+	struct device *dev;
+	struct mutex  mtx;
+
+	u32 pseudo_palette[17];
+
+	int state;
+
+	unsigned num_fbs;
+	struct fb_info *fbs[10];
+	struct omapfb2_mem_region regions[10];
+
+	unsigned num_displays;
+	struct omapfb_display_data displays[10];
+	unsigned num_overlays;
+	struct omap_overlay *overlays[10];
+	unsigned num_managers;
+	struct omap_overlay_manager *managers[10];
+
+	struct workqueue_struct *auto_update_wq;
+};
+
+struct omapfb_colormode {
+	enum omap_color_mode dssmode;
+	u32 bits_per_pixel;
+	u32 nonstd;
+	struct fb_bitfield red;
+	struct fb_bitfield green;
+	struct fb_bitfield blue;
+	struct fb_bitfield transp;
+};
+
+void set_fb_fix(struct fb_info *fbi);
+int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var);
+int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type);
+int omapfb_apply_changes(struct fb_info *fbi, int init);
+
+int omapfb_create_sysfs(struct omapfb2_device *fbdev);
+void omapfb_remove_sysfs(struct omapfb2_device *fbdev);
+
+int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg);
+
+int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
+			struct fb_var_screeninfo *var);
+
+int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
+		u16 posx, u16 posy, u16 outw, u16 outh);
+
+void omapfb_start_auto_update(struct omapfb2_device *fbdev,
+		struct omap_dss_device *display);
+void omapfb_stop_auto_update(struct omapfb2_device *fbdev,
+		struct omap_dss_device *display);
+int omapfb_get_update_mode(struct fb_info *fbi, enum omapfb_update_mode *mode);
+int omapfb_set_update_mode(struct fb_info *fbi, enum omapfb_update_mode mode);
+
+/* find the display connected to this fb, if any */
+static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
+{
+	struct omapfb_info *ofbi = FB2OFB(fbi);
+	struct omap_overlay *ovl;
+
+	/* XXX: returns the display connected to first attached overlay */
+
+	if (ofbi->num_overlays == 0)
+		return NULL;
+
+	ovl = ofbi->overlays[0];
+
+	return ovl->get_device(ovl);
+}
+
+static inline struct omapfb_display_data *get_display_data(
+		struct omapfb2_device *fbdev, struct omap_dss_device *dssdev)
+{
+	int i;
+
+	for (i = 0; i < fbdev->num_displays; ++i)
+		if (fbdev->displays[i].dssdev == dssdev)
+			return &fbdev->displays[i];
+
+	/* This should never happen */
+	BUG();
+	return NULL;
+}
+
+static inline void omapfb_lock(struct omapfb2_device *fbdev)
+{
+	mutex_lock(&fbdev->mtx);
+}
+
+static inline void omapfb_unlock(struct omapfb2_device *fbdev)
+{
+	mutex_unlock(&fbdev->mtx);
+}
+
+static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
+		int enable)
+{
+	if (enable)
+		return ovl->enable(ovl);
+	else
+		return ovl->disable(ovl);
+}
+
+static inline struct omapfb2_mem_region *
+omapfb_get_mem_region(struct omapfb2_mem_region *rg)
+{
+	down_read_nested(&rg->lock, rg->id);
+	atomic_inc(&rg->lock_count);
+	return rg;
+}
+
+static inline void omapfb_put_mem_region(struct omapfb2_mem_region *rg)
+{
+	atomic_dec(&rg->lock_count);
+	up_read(&rg->lock);
+}
+
+#endif