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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 | 30 | #include <linux/rwsem.h> |
0049fb26 TV |
31 | #include <linux/dma-attrs.h> |
32 | #include <linux/dma-mapping.h> | |
2f642a17 | 33 | |
a0b38cc4 | 34 | #include <video/omapdss.h> |
b39a982d TV |
35 | |
36 | #ifdef DEBUG | |
90ab5ee9 | 37 | extern bool omapfb_debug; |
b39a982d | 38 | #define DBG(format, ...) \ |
41b21aeb NV |
39 | do { \ |
40 | if (omapfb_debug) \ | |
41 | printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__); \ | |
42 | } while (0) | |
b39a982d TV |
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 | ||
52 | struct omapfb2_mem_region { | |
078ff546 | 53 | int id; |
0049fb26 TV |
54 | struct dma_attrs attrs; |
55 | void *token; | |
56 | dma_addr_t dma_handle; | |
b39a982d TV |
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 */ | |
078ff546 | 64 | atomic_t map_count; |
3ed37d9a TV |
65 | struct rw_semaphore lock; |
66 | atomic_t lock_count; | |
b39a982d TV |
67 | }; |
68 | ||
69 | /* appended to fb_info */ | |
70 | struct omapfb_info { | |
71 | int id; | |
078ff546 | 72 | struct omapfb2_mem_region *region; |
b39a982d TV |
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 | ||
065a40bd | 81 | struct omapfb_display_data { |
27cc213e | 82 | struct omapfb2_device *fbdev; |
065a40bd TV |
83 | struct omap_dss_device *dssdev; |
84 | u8 bpp_override; | |
27cc213e TV |
85 | enum omapfb_update_mode update_mode; |
86 | bool auto_update_work_enabled; | |
87 | struct delayed_work auto_update_work; | |
065a40bd TV |
88 | }; |
89 | ||
b39a982d TV |
90 | struct 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]; | |
078ff546 | 100 | struct omapfb2_mem_region regions[10]; |
b39a982d TV |
101 | |
102 | unsigned num_displays; | |
065a40bd | 103 | struct omapfb_display_data displays[10]; |
b39a982d TV |
104 | unsigned num_overlays; |
105 | struct omap_overlay *overlays[10]; | |
106 | unsigned num_managers; | |
107 | struct omap_overlay_manager *managers[10]; | |
27cc213e TV |
108 | |
109 | struct workqueue_struct *auto_update_wq; | |
b39a982d TV |
110 | }; |
111 | ||
112 | struct 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 | ||
122 | void set_fb_fix(struct fb_info *fbi); | |
123 | int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var); | |
124 | int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type); | |
125 | int omapfb_apply_changes(struct fb_info *fbi, int init); | |
126 | ||
127 | int omapfb_create_sysfs(struct omapfb2_device *fbdev); | |
128 | void omapfb_remove_sysfs(struct omapfb2_device *fbdev); | |
129 | ||
130 | int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg); | |
131 | ||
132 | int dss_mode_to_fb_mode(enum omap_color_mode dssmode, | |
133 | struct fb_var_screeninfo *var); | |
134 | ||
078ff546 VS |
135 | int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, |
136 | u16 posx, u16 posy, u16 outw, u16 outh); | |
137 | ||
27cc213e TV |
138 | void omapfb_start_auto_update(struct omapfb2_device *fbdev, |
139 | struct omap_dss_device *display); | |
140 | void omapfb_stop_auto_update(struct omapfb2_device *fbdev, | |
141 | struct omap_dss_device *display); | |
142 | int omapfb_get_update_mode(struct fb_info *fbi, enum omapfb_update_mode *mode); | |
143 | int omapfb_set_update_mode(struct fb_info *fbi, enum omapfb_update_mode mode); | |
144 | ||
b39a982d TV |
145 | /* find the display connected to this fb, if any */ |
146 | static inline struct omap_dss_device *fb2display(struct fb_info *fbi) | |
147 | { | |
148 | struct omapfb_info *ofbi = FB2OFB(fbi); | |
c7e1eae5 | 149 | struct omap_overlay *ovl; |
b39a982d TV |
150 | |
151 | /* XXX: returns the display connected to first attached overlay */ | |
4249e61e | 152 | |
c7e1eae5 TV |
153 | if (ofbi->num_overlays == 0) |
154 | return NULL; | |
b39a982d | 155 | |
c7e1eae5 TV |
156 | ovl = ofbi->overlays[0]; |
157 | ||
158 | return ovl->get_device(ovl); | |
b39a982d TV |
159 | } |
160 | ||
065a40bd TV |
161 | static 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(); | |
4a75cb85 | 172 | return NULL; |
065a40bd TV |
173 | } |
174 | ||
b39a982d TV |
175 | static inline void omapfb_lock(struct omapfb2_device *fbdev) |
176 | { | |
177 | mutex_lock(&fbdev->mtx); | |
178 | } | |
179 | ||
180 | static inline void omapfb_unlock(struct omapfb2_device *fbdev) | |
181 | { | |
182 | mutex_unlock(&fbdev->mtx); | |
183 | } | |
184 | ||
185 | static inline int omapfb_overlay_enable(struct omap_overlay *ovl, | |
186 | int enable) | |
187 | { | |
aaa874a9 TV |
188 | if (enable) |
189 | return ovl->enable(ovl); | |
190 | else | |
191 | return ovl->disable(ovl); | |
b39a982d TV |
192 | } |
193 | ||
3ed37d9a TV |
194 | static inline struct omapfb2_mem_region * |
195 | omapfb_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 | ||
202 | static 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 | ||
b39a982d | 208 | #endif |