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Linux kernel mirror (for testing)
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linux
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
33struct drm_fb_helper_crtc {
34 uint32_t crtc_id;
35 struct drm_mode_set mode_set;
36};
37
38
39struct drm_fb_helper_funcs {
40 void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
41 u16 blue, int regno);
42 void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
43 u16 *blue, int regno);
44};
45
46/* mode specified on the command line */
47struct drm_fb_helper_cmdline_mode {
48 bool specified;
49 bool refresh_specified;
50 bool bpp_specified;
51 int xres, yres;
52 int bpp;
53 int refresh;
54 bool rb;
55 bool interlace;
56 bool cvt;
57 bool margins;
58};
59
60struct drm_fb_helper_connector {
61 struct drm_fb_helper_cmdline_mode cmdline_mode;
62};
63
64struct drm_fb_helper {
65 struct drm_framebuffer *fb;
66 struct drm_device *dev;
67 struct drm_display_mode *mode;
68 int crtc_count;
69 struct drm_fb_helper_crtc *crtc_info;
70 struct drm_fb_helper_funcs *funcs;
71 int conn_limit;
72 struct list_head kernel_fb_list;
73};
74
75int drm_fb_helper_single_fb_probe(struct drm_device *dev,
76 int preferred_bpp,
77 int (*fb_create)(struct drm_device *dev,
78 uint32_t fb_width,
79 uint32_t fb_height,
80 uint32_t surface_width,
81 uint32_t surface_height,
82 uint32_t surface_depth,
83 uint32_t surface_bpp,
84 struct drm_framebuffer **fb_ptr));
85int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count,
86 int max_conn);
87void drm_fb_helper_free(struct drm_fb_helper *helper);
88int drm_fb_helper_blank(int blank, struct fb_info *info);
89int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
90 struct fb_info *info);
91int drm_fb_helper_set_par(struct fb_info *info);
92int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
93 struct fb_info *info);
94int drm_fb_helper_setcolreg(unsigned regno,
95 unsigned red,
96 unsigned green,
97 unsigned blue,
98 unsigned transp,
99 struct fb_info *info);
100
101void drm_fb_helper_restore(void);
102void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb,
103 uint32_t fb_width, uint32_t fb_height);
104void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
105 uint32_t depth);
106
107int drm_fb_helper_add_connector(struct drm_connector *connector);
108int drm_fb_helper_parse_command_line(struct drm_device *dev);
109int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
110
111#endif