2 * Copyright (c) 2006-2009 Red Hat Inc.
3 * Copyright (c) 2006-2008 Intel Corporation
4 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
6 * DRM framebuffer helper functions
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.
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
27 * Dave Airlie <airlied@linux.ie>
28 * Jesse Barnes <jesse.barnes@intel.com>
30 #ifndef DRM_FB_HELPER_H
31 #define DRM_FB_HELPER_H
33 struct drm_fb_helper_crtc {
35 struct drm_mode_set mode_set;
36 struct drm_display_mode *desired_mode;
40 struct drm_fb_helper_funcs {
41 void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
43 void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
44 u16 *blue, int regno);
47 /* mode specified on the command line */
48 struct drm_fb_helper_cmdline_mode {
50 bool refresh_specified;
61 struct drm_fb_helper_surface_size {
70 struct drm_fb_helper_connector {
71 struct drm_fb_helper_cmdline_mode cmdline_mode;
74 struct drm_fb_helper {
75 struct drm_framebuffer *fb;
76 struct drm_device *dev;
77 struct drm_display_mode *mode;
79 struct drm_fb_helper_crtc *crtc_info;
80 struct drm_fb_helper_funcs *funcs;
82 struct fb_info *fbdev;
83 u32 pseudo_palette[17];
84 struct list_head kernel_fb_list;
86 int (*fb_probe)(struct drm_fb_helper *helper,
87 struct drm_fb_helper_surface_size *sizes);
90 int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
93 int drm_fb_helper_init_crtc_count(struct drm_device *dev,
94 struct drm_fb_helper *helper, int crtc_count,
96 void drm_fb_helper_free(struct drm_fb_helper *helper);
97 int drm_fb_helper_blank(int blank, struct fb_info *info);
98 int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
99 struct fb_info *info);
100 int drm_fb_helper_set_par(struct fb_info *info);
101 int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
102 struct fb_info *info);
103 int drm_fb_helper_setcolreg(unsigned regno,
108 struct fb_info *info);
110 void drm_fb_helper_restore(void);
111 void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
112 uint32_t fb_width, uint32_t fb_height);
113 void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
116 int drm_fb_helper_add_connector(struct drm_connector *connector);
117 int drm_fb_helper_parse_command_line(struct drm_device *dev);
118 int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
120 bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper, u32 max_width,
122 bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper);