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b39a982d TV |
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 | ||
2f642a17 VS |
30 | #include <linux/rwsem.h> |
31 | ||
a0b38cc4 | 32 | #include <video/omapdss.h> |
b39a982d TV |
33 | |
34 | #ifdef DEBUG | |
90ab5ee9 | 35 | extern bool omapfb_debug; |
b39a982d | 36 | #define DBG(format, ...) \ |
41b21aeb NV |
37 | do { \ |
38 | if (omapfb_debug) \ | |
39 | printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__); \ | |
40 | } while (0) | |
b39a982d TV |
41 | #else |
42 | #define DBG(format, ...) | |
43 | #endif | |
44 | ||
45 | #define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par)) | |
46 | ||
47 | /* max number of overlays to which a framebuffer data can be direct */ | |
48 | #define OMAPFB_MAX_OVL_PER_FB 3 | |
49 | ||
50 | struct omapfb2_mem_region { | |
078ff546 | 51 | int id; |
b39a982d TV |
52 | u32 paddr; |
53 | void __iomem *vaddr; | |
54 | struct vrfb vrfb; | |
55 | unsigned long size; | |
56 | u8 type; /* OMAPFB_PLANE_MEM_* */ | |
57 | bool alloc; /* allocated by the driver */ | |
58 | bool map; /* kernel mapped by the driver */ | |
078ff546 | 59 | atomic_t map_count; |
2f642a17 | 60 | struct rw_semaphore lock; |
1ceafc00 | 61 | atomic_t lock_count; |
b39a982d TV |
62 | }; |
63 | ||
64 | /* appended to fb_info */ | |
65 | struct omapfb_info { | |
66 | int id; | |
078ff546 | 67 | struct omapfb2_mem_region *region; |
b39a982d TV |
68 | int num_overlays; |
69 | struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB]; | |
70 | struct omapfb2_device *fbdev; | |
71 | enum omap_dss_rotation_type rotation_type; | |
72 | u8 rotation[OMAPFB_MAX_OVL_PER_FB]; | |
73 | bool mirror; | |
74 | }; | |
75 | ||
065a40bd | 76 | struct omapfb_display_data { |
27cc213e | 77 | struct omapfb2_device *fbdev; |
065a40bd TV |
78 | struct omap_dss_device *dssdev; |
79 | u8 bpp_override; | |
27cc213e TV |
80 | enum omapfb_update_mode update_mode; |
81 | bool auto_update_work_enabled; | |
82 | struct delayed_work auto_update_work; | |
065a40bd TV |
83 | }; |
84 | ||
b39a982d TV |
85 | struct omapfb2_device { |
86 | struct device *dev; | |
87 | struct mutex mtx; | |
88 | ||
89 | u32 pseudo_palette[17]; | |
90 | ||
91 | int state; | |
92 | ||
93 | unsigned num_fbs; | |
94 | struct fb_info *fbs[10]; | |
078ff546 | 95 | struct omapfb2_mem_region regions[10]; |
b39a982d TV |
96 | |
97 | unsigned num_displays; | |
065a40bd | 98 | struct omapfb_display_data displays[10]; |
b39a982d TV |
99 | unsigned num_overlays; |
100 | struct omap_overlay *overlays[10]; | |
101 | unsigned num_managers; | |
102 | struct omap_overlay_manager *managers[10]; | |
27cc213e TV |
103 | |
104 | struct workqueue_struct *auto_update_wq; | |
b39a982d TV |
105 | }; |
106 | ||
107 | struct omapfb_colormode { | |
108 | enum omap_color_mode dssmode; | |
109 | u32 bits_per_pixel; | |
110 | u32 nonstd; | |
111 | struct fb_bitfield red; | |
112 | struct fb_bitfield green; | |
113 | struct fb_bitfield blue; | |
114 | struct fb_bitfield transp; | |
115 | }; | |
116 | ||
117 | void set_fb_fix(struct fb_info *fbi); | |
118 | int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var); | |
119 | int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type); | |
120 | int omapfb_apply_changes(struct fb_info *fbi, int init); | |
121 | ||
122 | int omapfb_create_sysfs(struct omapfb2_device *fbdev); | |
123 | void omapfb_remove_sysfs(struct omapfb2_device *fbdev); | |
124 | ||
125 | int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg); | |
126 | ||
b63c97f5 TV |
127 | int omapfb_update_window(struct fb_info *fbi, |
128 | u32 x, u32 y, u32 w, u32 h); | |
129 | ||
b39a982d TV |
130 | int dss_mode_to_fb_mode(enum omap_color_mode dssmode, |
131 | struct fb_var_screeninfo *var); | |
132 | ||
078ff546 VS |
133 | int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, |
134 | u16 posx, u16 posy, u16 outw, u16 outh); | |
135 | ||
27cc213e TV |
136 | void omapfb_start_auto_update(struct omapfb2_device *fbdev, |
137 | struct omap_dss_device *display); | |
138 | void omapfb_stop_auto_update(struct omapfb2_device *fbdev, | |
139 | struct omap_dss_device *display); | |
140 | int omapfb_get_update_mode(struct fb_info *fbi, enum omapfb_update_mode *mode); | |
141 | int omapfb_set_update_mode(struct fb_info *fbi, enum omapfb_update_mode mode); | |
142 | ||
b39a982d TV |
143 | /* find the display connected to this fb, if any */ |
144 | static inline struct omap_dss_device *fb2display(struct fb_info *fbi) | |
145 | { | |
146 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
147 | int i; | |
148 | ||
149 | /* XXX: returns the display connected to first attached overlay */ | |
150 | for (i = 0; i < ofbi->num_overlays; i++) { | |
151 | if (ofbi->overlays[i]->manager) | |
152 | return ofbi->overlays[i]->manager->device; | |
153 | } | |
154 | ||
155 | return NULL; | |
156 | } | |
157 | ||
065a40bd TV |
158 | static inline struct omapfb_display_data *get_display_data( |
159 | struct omapfb2_device *fbdev, struct omap_dss_device *dssdev) | |
160 | { | |
161 | int i; | |
162 | ||
163 | for (i = 0; i < fbdev->num_displays; ++i) | |
164 | if (fbdev->displays[i].dssdev == dssdev) | |
165 | return &fbdev->displays[i]; | |
166 | ||
167 | /* This should never happen */ | |
168 | BUG(); | |
169 | } | |
170 | ||
b39a982d TV |
171 | static inline void omapfb_lock(struct omapfb2_device *fbdev) |
172 | { | |
173 | mutex_lock(&fbdev->mtx); | |
174 | } | |
175 | ||
176 | static inline void omapfb_unlock(struct omapfb2_device *fbdev) | |
177 | { | |
178 | mutex_unlock(&fbdev->mtx); | |
179 | } | |
180 | ||
181 | static inline int omapfb_overlay_enable(struct omap_overlay *ovl, | |
182 | int enable) | |
183 | { | |
aaa874a9 TV |
184 | if (enable) |
185 | return ovl->enable(ovl); | |
186 | else | |
187 | return ovl->disable(ovl); | |
b39a982d TV |
188 | } |
189 | ||
430571d5 VS |
190 | static inline struct omapfb2_mem_region * |
191 | omapfb_get_mem_region(struct omapfb2_mem_region *rg) | |
192 | { | |
3d84b65a | 193 | down_read_nested(&rg->lock, rg->id); |
1ceafc00 | 194 | atomic_inc(&rg->lock_count); |
430571d5 VS |
195 | return rg; |
196 | } | |
197 | ||
198 | static inline void omapfb_put_mem_region(struct omapfb2_mem_region *rg) | |
199 | { | |
1ceafc00 | 200 | atomic_dec(&rg->lock_count); |
2f642a17 | 201 | up_read(&rg->lock); |
430571d5 VS |
202 | } |
203 | ||
b39a982d | 204 | #endif |