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
35 #include <linux/kgdb.h>
37 struct drm_fb_helper_crtc
{
39 struct drm_mode_set mode_set
;
40 struct drm_display_mode
*desired_mode
;
43 struct drm_fb_helper_surface_size
{
52 struct drm_fb_helper_funcs
{
53 void (*gamma_set
)(struct drm_crtc
*crtc
, u16 red
, u16 green
,
55 void (*gamma_get
)(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
56 u16
*blue
, int regno
);
58 int (*fb_probe
)(struct drm_fb_helper
*helper
,
59 struct drm_fb_helper_surface_size
*sizes
);
62 struct drm_fb_helper_connector
{
63 struct drm_connector
*connector
;
64 struct drm_cmdline_mode cmdline_mode
;
67 struct drm_fb_helper
{
68 struct drm_framebuffer
*fb
;
69 struct drm_framebuffer
*saved_fb
;
70 struct drm_device
*dev
;
71 struct drm_display_mode
*mode
;
73 struct drm_fb_helper_crtc
*crtc_info
;
75 struct drm_fb_helper_connector
**connector_info
;
76 struct drm_fb_helper_funcs
*funcs
;
77 struct fb_info
*fbdev
;
78 u32 pseudo_palette
[17];
79 struct list_head kernel_fb_list
;
81 /* we got a hotplug but fbdev wasn't running the console
82 delay until next set_par */
86 int drm_fb_helper_single_fb_probe(struct drm_fb_helper
*helper
,
89 int drm_fb_helper_init(struct drm_device
*dev
,
90 struct drm_fb_helper
*helper
, int crtc_count
,
92 void drm_fb_helper_fini(struct drm_fb_helper
*helper
);
93 int drm_fb_helper_blank(int blank
, struct fb_info
*info
);
94 int drm_fb_helper_pan_display(struct fb_var_screeninfo
*var
,
95 struct fb_info
*info
);
96 int drm_fb_helper_set_par(struct fb_info
*info
);
97 int drm_fb_helper_check_var(struct fb_var_screeninfo
*var
,
98 struct fb_info
*info
);
99 int drm_fb_helper_setcolreg(unsigned regno
,
104 struct fb_info
*info
);
106 bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper
*fb_helper
);
107 void drm_fb_helper_restore(void);
108 void drm_fb_helper_fill_var(struct fb_info
*info
, struct drm_fb_helper
*fb_helper
,
109 uint32_t fb_width
, uint32_t fb_height
);
110 void drm_fb_helper_fill_fix(struct fb_info
*info
, uint32_t pitch
,
113 int drm_fb_helper_setcmap(struct fb_cmap
*cmap
, struct fb_info
*info
);
115 int drm_fb_helper_hotplug_event(struct drm_fb_helper
*fb_helper
);
116 bool drm_fb_helper_initial_config(struct drm_fb_helper
*fb_helper
, int bpp_sel
);
117 int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper
*fb_helper
);
118 int drm_fb_helper_debug_enter(struct fb_info
*info
);
119 int drm_fb_helper_debug_leave(struct fb_info
*info
);