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;
34
35struct drm_fb_helper_crtc {
36	struct drm_mode_set mode_set;
37	struct drm_display_mode *desired_mode;
38};
39
40struct drm_fb_helper_surface_size {
41	u32 fb_width;
42	u32 fb_height;
43	u32 surface_width;
44	u32 surface_height;
45	u32 surface_bpp;
46	u32 surface_depth;
47};
48
49struct drm_fb_helper_funcs {
50	void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
51			  u16 blue, int regno);
52	void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
53			  u16 *blue, int regno);
54
55	int (*fb_probe)(struct drm_fb_helper *helper,
56			struct drm_fb_helper_surface_size *sizes);
57};
58
59struct drm_fb_helper_connector {
60	struct drm_connector *connector;
61	struct drm_cmdline_mode cmdline_mode;
62};
63
64struct drm_fb_helper {
65	struct drm_framebuffer *fb;
66	struct drm_framebuffer *saved_fb;
67	struct drm_device *dev;
68	struct drm_display_mode *mode;
69	int crtc_count;
70	struct drm_fb_helper_crtc *crtc_info;
71	int connector_count;
72	struct drm_fb_helper_connector **connector_info;
73	struct drm_fb_helper_funcs *funcs;
74	struct fb_info *fbdev;
75	u32 pseudo_palette[17];
76	struct list_head kernel_fb_list;
77
78	/* we got a hotplug but fbdev wasn't running the console
79	   delay until next set_par */
80	bool delayed_hotplug;
81};
82
83int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
84				  int preferred_bpp);
85
86int drm_fb_helper_init(struct drm_device *dev,
87		       struct drm_fb_helper *helper, int crtc_count,
88		       int max_conn);
89void drm_fb_helper_fini(struct drm_fb_helper *helper);
90int drm_fb_helper_blank(int blank, struct fb_info *info);
91#ifdef FREEBSD_NOTYET
92int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
93			      struct fb_info *info);
94#endif /* FREEBSD_NOTYET */
95int drm_fb_helper_set_par(struct fb_info *info);
96#ifdef FREEBSD_NOTYET
97int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
98			    struct fb_info *info);
99#endif /* FREEBSD_NOTYET */
100int drm_fb_helper_setcolreg(unsigned regno,
101			    unsigned red,
102			    unsigned green,
103			    unsigned blue,
104			    unsigned transp,
105			    struct fb_info *info);
106
107bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper);
108void drm_fb_helper_restore(void);
109void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
110			    uint32_t fb_width, uint32_t fb_height);
111void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
112			    uint32_t depth);
113
114#ifdef FREEBSD_NOTYET
115int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
116#endif /* FREEBSD_NOTYET */
117
118int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
119bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
120int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
121int drm_fb_helper_debug_enter(struct fb_info *info);
122int drm_fb_helper_debug_leave(struct fb_info *info);
123
124#endif
125