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1 | /* |
2 | * Copyright (c) 2006-2009 Red Hat Inc. |
3 | * Copyright (c) 2006-2008 Intel Corporation |
4 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> |
5 | * |
6 | * DRM framebuffer helper functions |
7 | * |
8 | * Permission to use, copy, modify, distribute, and sell this software and its |
9 | * documentation for any purpose is hereby granted without fee, provided that |
10 | * the above copyright notice appear in all copies and that both that copyright |
11 | * notice and this permission notice appear in supporting documentation, and |
12 | * that the name of the copyright holders not be used in advertising or |
13 | * publicity pertaining to distribution of the software without specific, |
14 | * written prior permission. The copyright holders make no representations |
15 | * about the suitability of this software for any purpose. It is provided "as |
16 | * is" without express or implied warranty. |
17 | * |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
24 | * OF THIS SOFTWARE. |
25 | * |
26 | * Authors: |
27 | * Dave Airlie <airlied@linux.ie> |
28 | * Jesse Barnes <jesse.barnes@intel.com> |
29 | */ |
30 | #ifndef DRM_FB_HELPER_H |
31 | #define DRM_FB_HELPER_H |
32 | |
33 | struct drm_fb_helper; |
34 | |
35 | #include <linux/kgdb.h> |
36 | |
37 | struct drm_fb_helper_crtc { |
38 | uint32_t crtc_id; |
39 | struct drm_mode_set mode_set; |
40 | struct drm_display_mode *desired_mode; |
41 | }; |
42 | |
43 | /* mode specified on the command line */ |
44 | struct drm_fb_helper_cmdline_mode { |
45 | bool specified; |
46 | bool refresh_specified; |
47 | bool bpp_specified; |
48 | int xres, yres; |
49 | int bpp; |
50 | int refresh; |
51 | bool rb; |
52 | bool interlace; |
53 | bool cvt; |
54 | bool margins; |
55 | }; |
56 | |
57 | struct drm_fb_helper_surface_size { |
58 | u32 fb_width; |
59 | u32 fb_height; |
60 | u32 surface_width; |
61 | u32 surface_height; |
62 | u32 surface_bpp; |
63 | u32 surface_depth; |
64 | }; |
65 | |
66 | struct drm_fb_helper_funcs { |
67 | void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green, |
68 | u16 blue, int regno); |
69 | void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green, |
70 | u16 *blue, int regno); |
71 | |
72 | int (*fb_probe)(struct drm_fb_helper *helper, |
73 | struct drm_fb_helper_surface_size *sizes); |
74 | }; |
75 | |
76 | struct drm_fb_helper_connector { |
77 | struct drm_fb_helper_cmdline_mode cmdline_mode; |
78 | struct drm_connector *connector; |
79 | }; |
80 | |
81 | struct drm_fb_helper { |
82 | struct drm_framebuffer *fb; |
83 | struct drm_framebuffer *saved_fb; |
84 | struct drm_device *dev; |
85 | struct drm_display_mode *mode; |
86 | int crtc_count; |
87 | struct drm_fb_helper_crtc *crtc_info; |
88 | int connector_count; |
89 | struct drm_fb_helper_connector **connector_info; |
90 | struct drm_fb_helper_funcs *funcs; |
91 | int conn_limit; |
92 | struct fb_info *fbdev; |
93 | u32 pseudo_palette[17]; |
94 | struct list_head kernel_fb_list; |
95 | |
96 | /* we got a hotplug but fbdev wasn't running the console |
97 | delay until next set_par */ |
98 | bool delayed_hotplug; |
99 | }; |
100 | |
101 | int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper, |
102 | int preferred_bpp); |
103 | |
104 | int drm_fb_helper_init(struct drm_device *dev, |
105 | struct drm_fb_helper *helper, int crtc_count, |
106 | int max_conn); |
107 | void drm_fb_helper_fini(struct drm_fb_helper *helper); |
108 | int drm_fb_helper_blank(int blank, struct fb_info *info); |
109 | int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, |
110 | struct fb_info *info); |
111 | int drm_fb_helper_set_par(struct fb_info *info); |
112 | int drm_fb_helper_check_var(struct fb_var_screeninfo *var, |
113 | struct fb_info *info); |
114 | int drm_fb_helper_setcolreg(unsigned regno, |
115 | unsigned red, |
116 | unsigned green, |
117 | unsigned blue, |
118 | unsigned transp, |
119 | struct fb_info *info); |
120 | |
121 | void drm_fb_helper_restore(void); |
122 | void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, |
123 | uint32_t fb_width, uint32_t fb_height); |
124 | void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, |
125 | uint32_t depth); |
126 | |
127 | int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info); |
128 | |
129 | bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper); |
130 | bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel); |
131 | int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper); |
132 | int drm_fb_helper_debug_enter(struct fb_info *info); |
133 | int drm_fb_helper_debug_leave(struct fb_info *info); |
134 | |
135 | #endif |
136 |
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