2 * linux/drivers/video/omap2/omapfb.h
4 * Copyright (C) 2008 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
7 * Some code and ideas taken from drivers/video/omap/ driver
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 as published by
12 * the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * You should have received a copy of the GNU General Public License along with
20 * this program. If not, see <http://www.gnu.org/licenses/>.
23 #ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
24 #define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
26 #ifdef CONFIG_FB_OMAP2_DEBUG_SUPPORT
30 #include <linux/rwsem.h>
32 #include <plat/display.h>
35 extern unsigned int omapfb_debug;
36 #define DBG(format, ...) \
38 printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__)
40 #define DBG(format, ...)
43 #define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par))
45 /* max number of overlays to which a framebuffer data can be direct */
46 #define OMAPFB_MAX_OVL_PER_FB 3
48 struct omapfb2_mem_region {
54 u8 type; /* OMAPFB_PLANE_MEM_* */
55 bool alloc; /* allocated by the driver */
56 bool map; /* kernel mapped by the driver */
58 struct rw_semaphore lock;
62 /* appended to fb_info */
65 struct omapfb2_mem_region *region;
67 struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB];
68 struct omapfb2_device *fbdev;
69 enum omap_dss_rotation_type rotation_type;
70 u8 rotation[OMAPFB_MAX_OVL_PER_FB];
74 struct omapfb2_device {
78 u32 pseudo_palette[17];
83 struct fb_info *fbs[10];
84 struct omapfb2_mem_region regions[10];
86 unsigned num_displays;
87 struct omap_dss_device *displays[10];
88 unsigned num_overlays;
89 struct omap_overlay *overlays[10];
90 unsigned num_managers;
91 struct omap_overlay_manager *managers[10];
93 unsigned num_bpp_overrides;
95 struct omap_dss_device *dssdev;
100 struct omapfb_colormode {
101 enum omap_color_mode dssmode;
104 struct fb_bitfield red;
105 struct fb_bitfield green;
106 struct fb_bitfield blue;
107 struct fb_bitfield transp;
110 void set_fb_fix(struct fb_info *fbi);
111 int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var);
112 int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type);
113 int omapfb_apply_changes(struct fb_info *fbi, int init);
115 int omapfb_create_sysfs(struct omapfb2_device *fbdev);
116 void omapfb_remove_sysfs(struct omapfb2_device *fbdev);
118 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg);
120 int omapfb_update_window(struct fb_info *fbi,
121 u32 x, u32 y, u32 w, u32 h);
123 int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
124 struct fb_var_screeninfo *var);
126 int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
127 u16 posx, u16 posy, u16 outw, u16 outh);
129 /* find the display connected to this fb, if any */
130 static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
132 struct omapfb_info *ofbi = FB2OFB(fbi);
135 /* XXX: returns the display connected to first attached overlay */
136 for (i = 0; i < ofbi->num_overlays; i++) {
137 if (ofbi->overlays[i]->manager)
138 return ofbi->overlays[i]->manager->device;
144 static inline void omapfb_lock(struct omapfb2_device *fbdev)
146 mutex_lock(&fbdev->mtx);
149 static inline void omapfb_unlock(struct omapfb2_device *fbdev)
151 mutex_unlock(&fbdev->mtx);
154 static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
157 struct omap_overlay_info info;
159 ovl->get_overlay_info(ovl, &info);
160 if (info.enabled == enable)
162 info.enabled = enable;
163 return ovl->set_overlay_info(ovl, &info);
166 static inline struct omapfb2_mem_region *
167 omapfb_get_mem_region(struct omapfb2_mem_region *rg)
169 down_read_nested(&rg->lock, rg->id);
170 atomic_inc(&rg->lock_count);
174 static inline void omapfb_put_mem_region(struct omapfb2_mem_region *rg)
176 atomic_dec(&rg->lock_count);