Initial import

1 files changed, 208 insertions, 0 deletions

diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb.h b/drivers/video/fbdev/omap2/omapfb/omapfb.h
new file mode 100644
index 000000000..623cd872a
--- /dev/null
+++ b/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