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 #include <linux/slow-work.h>
35 struct drm_fb_helper_crtc {
37 struct drm_mode_set mode_set;
38 struct drm_display_mode *desired_mode;
42 struct drm_fb_helper_funcs {
43 void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
45 void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
46 u16 *blue, int regno);
49 /* mode specified on the command line */
50 struct drm_fb_helper_cmdline_mode {
52 bool refresh_specified;
63 struct drm_fb_helper_surface_size {
72 struct drm_fb_helper_connector {
73 struct drm_fb_helper_cmdline_mode cmdline_mode;
74 struct drm_connector *connector;
77 struct drm_fb_helper {
78 struct drm_framebuffer *fb;
79 struct drm_device *dev;
80 struct drm_display_mode *mode;
82 struct drm_fb_helper_crtc *crtc_info;
84 struct drm_fb_helper_connector **connector_info;
85 struct drm_fb_helper_funcs *funcs;
87 struct fb_info *fbdev;
88 u32 pseudo_palette[17];
89 struct list_head kernel_fb_list;
91 struct delayed_slow_work output_poll_slow_work;
93 int (*fb_probe)(struct drm_fb_helper *helper,
94 struct drm_fb_helper_surface_size *sizes);
96 void (*fb_poll_changed)(struct drm_fb_helper *helper);
99 int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
102 int drm_fb_helper_init_crtc_count(struct drm_device *dev,
103 struct drm_fb_helper *helper, int crtc_count,
105 void drm_fb_helper_free(struct drm_fb_helper *helper);
106 int drm_fb_helper_blank(int blank, struct fb_info *info);
107 int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
108 struct fb_info *info);
109 int drm_fb_helper_set_par(struct fb_info *info);
110 int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
111 struct fb_info *info);
112 int drm_fb_helper_setcolreg(unsigned regno,
117 struct fb_info *info);
119 void drm_fb_helper_restore(void);
120 void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
121 uint32_t fb_width, uint32_t fb_height);
122 void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
125 int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
127 bool drm_helper_fb_hotplug_event(struct drm_fb_helper *fb_helper,
128 u32 max_width, u32 max_height, bool polled);
129 bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper);
130 int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
132 void drm_fb_helper_poll_init(struct drm_fb_helper *fb_helper);
133 void drm_fb_helper_poll_fini(struct drm_fb_helper *fb_helper);