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Diffstat (limited to 'drivers/video/fbdev/omap2/omapfb/omapfb.h')
-rw-r--r--drivers/video/fbdev/omap2/omapfb/omapfb.h208
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 000000000000..623cd872a367
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+++ b/drivers/video/fbdev/omap2/omapfb/omapfb.h
@@ -0,0 +1,208 @@
1/*
2 * linux/drivers/video/omap2/omapfb.h
3 *
4 * Copyright (C) 2008 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6 *
7 * Some code and ideas taken from drivers/video/omap/ driver
8 * by Imre Deak.
9 *
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.
13 *
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
17 * more details.
18 *
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/>.
21 */
22
23#ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
24#define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
25
26#ifdef CONFIG_FB_OMAP2_DEBUG_SUPPORT
27#define DEBUG
28#endif
29
30#include <linux/rwsem.h>
31#include <linux/dma-attrs.h>
32#include <linux/dma-mapping.h>
33
34#include <video/omapdss.h>
35
36#ifdef DEBUG
37extern bool omapfb_debug;
38#define DBG(format, ...) \
39 do { \
40 if (omapfb_debug) \
41 printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__); \
42 } while (0)
43#else
44#define DBG(format, ...)
45#endif
46
47#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par))
48
49/* max number of overlays to which a framebuffer data can be direct */
50#define OMAPFB_MAX_OVL_PER_FB 3
51
52struct omapfb2_mem_region {
53 int id;
54 struct dma_attrs attrs;
55 void *token;
56 dma_addr_t dma_handle;
57 u32 paddr;
58 void __iomem *vaddr;
59 struct vrfb vrfb;
60 unsigned long size;
61 u8 type; /* OMAPFB_PLANE_MEM_* */
62 bool alloc; /* allocated by the driver */
63 bool map; /* kernel mapped by the driver */
64 atomic_t map_count;
65 struct rw_semaphore lock;
66 atomic_t lock_count;
67};
68
69/* appended to fb_info */
70struct omapfb_info {
71 int id;
72 struct omapfb2_mem_region *region;
73 int num_overlays;
74 struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB];
75 struct omapfb2_device *fbdev;
76 enum omap_dss_rotation_type rotation_type;
77 u8 rotation[OMAPFB_MAX_OVL_PER_FB];
78 bool mirror;
79};
80
81struct omapfb_display_data {
82 struct omapfb2_device *fbdev;
83 struct omap_dss_device *dssdev;
84 u8 bpp_override;
85 enum omapfb_update_mode update_mode;
86 bool auto_update_work_enabled;
87 struct delayed_work auto_update_work;
88};
89
90struct omapfb2_device {
91 struct device *dev;
92 struct mutex mtx;
93
94 u32 pseudo_palette[17];
95
96 int state;
97
98 unsigned num_fbs;
99 struct fb_info *fbs[10];
100 struct omapfb2_mem_region regions[10];
101
102 unsigned num_displays;
103 struct omapfb_display_data displays[10];
104 unsigned num_overlays;
105 struct omap_overlay *overlays[10];
106 unsigned num_managers;
107 struct omap_overlay_manager *managers[10];
108
109 struct workqueue_struct *auto_update_wq;
110};
111
112struct omapfb_colormode {
113 enum omap_color_mode dssmode;
114 u32 bits_per_pixel;
115 u32 nonstd;
116 struct fb_bitfield red;
117 struct fb_bitfield green;
118 struct fb_bitfield blue;
119 struct fb_bitfield transp;
120};
121
122void set_fb_fix(struct fb_info *fbi);
123int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var);
124int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type);
125int omapfb_apply_changes(struct fb_info *fbi, int init);
126
127int omapfb_create_sysfs(struct omapfb2_device *fbdev);
128void omapfb_remove_sysfs(struct omapfb2_device *fbdev);
129
130int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg);
131
132int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
133 struct fb_var_screeninfo *var);
134
135int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
136 u16 posx, u16 posy, u16 outw, u16 outh);
137
138void omapfb_start_auto_update(struct omapfb2_device *fbdev,
139 struct omap_dss_device *display);
140void omapfb_stop_auto_update(struct omapfb2_device *fbdev,
141 struct omap_dss_device *display);
142int omapfb_get_update_mode(struct fb_info *fbi, enum omapfb_update_mode *mode);
143int omapfb_set_update_mode(struct fb_info *fbi, enum omapfb_update_mode mode);
144
145/* find the display connected to this fb, if any */
146static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
147{
148 struct omapfb_info *ofbi = FB2OFB(fbi);
149 struct omap_overlay *ovl;
150
151 /* XXX: returns the display connected to first attached overlay */
152
153 if (ofbi->num_overlays == 0)
154 return NULL;
155
156 ovl = ofbi->overlays[0];
157
158 return ovl->get_device(ovl);
159}
160
161static inline struct omapfb_display_data *get_display_data(
162 struct omapfb2_device *fbdev, struct omap_dss_device *dssdev)
163{
164 int i;
165
166 for (i = 0; i < fbdev->num_displays; ++i)
167 if (fbdev->displays[i].dssdev == dssdev)
168 return &fbdev->displays[i];
169
170 /* This should never happen */
171 BUG();
172 return NULL;
173}
174
175static inline void omapfb_lock(struct omapfb2_device *fbdev)
176{
177 mutex_lock(&fbdev->mtx);
178}
179
180static inline void omapfb_unlock(struct omapfb2_device *fbdev)
181{
182 mutex_unlock(&fbdev->mtx);
183}
184
185static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
186 int enable)
187{
188 if (enable)
189 return ovl->enable(ovl);
190 else
191 return ovl->disable(ovl);
192}
193
194static inline struct omapfb2_mem_region *
195omapfb_get_mem_region(struct omapfb2_mem_region *rg)
196{
197 down_read_nested(&rg->lock, rg->id);
198 atomic_inc(&rg->lock_count);
199 return rg;
200}
201
202static inline void omapfb_put_mem_region(struct omapfb2_mem_region *rg)
203{
204 atomic_dec(&rg->lock_count);
205 up_read(&rg->lock);
206}
207
208#endif
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