1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* 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.
*/
#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-mapping.h>
#include <video/omapfb_dss.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, ...) no_printk(format, ## __VA_ARGS__)
#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;
unsigned long 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
|
