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drm_fb_helper.h
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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 <[email protected]>
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 <[email protected]>
28  * Jesse Barnes <[email protected]>
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 
40 };
41 
49 };
50 
53  u16 blue, int regno);
55  u16 *blue, int regno);
56 
57  int (*fb_probe)(struct drm_fb_helper *helper,
58  struct drm_fb_helper_surface_size *sizes);
59 };
60 
63  struct drm_cmdline_mode cmdline_mode;
64 };
65 
66 struct drm_fb_helper {
69  struct drm_device *dev;
76  struct fb_info *fbdev;
79 
80  /* we got a hotplug but fbdev wasn't running the console
81  delay until next set_par */
83 };
84 
86  int preferred_bpp);
87 
89  struct drm_fb_helper *helper, int crtc_count,
90  int max_conn);
91 void drm_fb_helper_fini(struct drm_fb_helper *helper);
92 int drm_fb_helper_blank(int blank, struct fb_info *info);
94  struct fb_info *info);
97  struct fb_info *info);
98 int drm_fb_helper_setcolreg(unsigned regno,
99  unsigned red,
100  unsigned green,
101  unsigned blue,
102  unsigned transp,
103  struct fb_info *info);
104 
105 bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper);
106 void drm_fb_helper_restore(void);
107 void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
108  uint32_t fb_width, uint32_t fb_height);
109 void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
110  uint32_t depth);
111 
112 int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
113 
114 int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
115 bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
119 
120 #endif