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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_crtc { | |
34 | uint32_t crtc_id; | |
35 | struct drm_mode_set mode_set; | |
36 | }; | |
37 | ||
38 | struct drm_fb_helper_funcs { | |
39 | void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green, | |
40 | u16 blue, int regno); | |
41 | }; | |
42 | ||
43 | struct drm_fb_helper { | |
44 | struct drm_framebuffer *fb; | |
45 | struct drm_device *dev; | |
46 | struct drm_display_mode *mode; | |
47 | int crtc_count; | |
48 | struct drm_fb_helper_crtc *crtc_info; | |
49 | struct drm_fb_helper_funcs *funcs; | |
50 | int conn_limit; | |
51 | struct list_head kernel_fb_list; | |
52 | }; | |
53 | ||
54 | int drm_fb_helper_single_fb_probe(struct drm_device *dev, | |
55 | int (*fb_create)(struct drm_device *dev, | |
56 | uint32_t fb_width, | |
57 | uint32_t fb_height, | |
58 | uint32_t surface_width, | |
59 | uint32_t surface_height, | |
60 | struct drm_framebuffer **fb_ptr)); | |
61 | int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count, | |
62 | int max_conn); | |
63 | void drm_fb_helper_free(struct drm_fb_helper *helper); | |
64 | int drm_fb_helper_blank(int blank, struct fb_info *info); | |
65 | int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, | |
66 | struct fb_info *info); | |
67 | int drm_fb_helper_set_par(struct fb_info *info); | |
68 | int drm_fb_helper_check_var(struct fb_var_screeninfo *var, | |
69 | struct fb_info *info); | |
70 | int drm_fb_helper_setcolreg(unsigned regno, | |
71 | unsigned red, | |
72 | unsigned green, | |
73 | unsigned blue, | |
74 | unsigned transp, | |
75 | struct fb_info *info); | |
76 | ||
77 | void drm_fb_helper_restore(void); | |
78 | void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb, | |
79 | uint32_t fb_width, uint32_t fb_height); | |
80 | void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch); | |
81 | ||
82 | #endif |