1301301Sdelphij/*
2275970Scy * Copyright (c) 2006-2009 Red Hat Inc.
3275970Scy * Copyright (c) 2006-2008 Intel Corporation
4275970Scy * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
5275970Scy *
6301301Sdelphij * DRM framebuffer helper functions
7275970Scy *
8275970Scy * Permission to use, copy, modify, distribute, and sell this software and its
9275970Scy * documentation for any purpose is hereby granted without fee, provided that
10275970Scy * the above copyright notice appear in all copies and that both that copyright
11275970Scy * notice and this permission notice appear in supporting documentation, and
12275970Scy * that the name of the copyright holders not be used in advertising or
13275970Scy * publicity pertaining to distribution of the software without specific,
14275970Scy * written prior permission.  The copyright holders make no representations
15275970Scy * about the suitability of this software for any purpose.  It is provided "as
16275970Scy * is" without express or implied warranty.
17275970Scy *
18275970Scy * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19275970Scy * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20275970Scy * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21275970Scy * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22275970Scy * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23275970Scy * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24275970Scy * OF THIS SOFTWARE.
25275970Scy *
26275970Scy * Authors:
27275970Scy *      Dave Airlie <airlied@linux.ie>
28275970Scy *      Jesse Barnes <jesse.barnes@intel.com>
29275970Scy *
30275970Scy * $FreeBSD: releng/10.2/sys/dev/drm2/drm_fb_helper.h 282199 2015-04-28 19:35:05Z dumbbell $
31275970Scy */
32275970Scy#ifndef DRM_FB_HELPER_H
33275970Scy#define DRM_FB_HELPER_H
34275970Scy
35275970Scystruct drm_fb_helper;
36275970Scy
37275970Scystruct drm_fb_helper_crtc {
38275970Scy	struct drm_mode_set mode_set;
39275970Scy	struct drm_display_mode *desired_mode;
40275970Scy};
41275970Scy
42275970Scystruct drm_fb_helper_surface_size {
43275970Scy	u32 fb_width;
44275970Scy	u32 fb_height;
45275970Scy	u32 surface_width;
46275970Scy	u32 surface_height;
47275970Scy	u32 surface_bpp;
48275970Scy	u32 surface_depth;
49275970Scy};
50275970Scy
51275970Scystruct drm_fb_helper_funcs {
52275970Scy	void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
53275970Scy			  u16 blue, int regno);
54275970Scy	void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
55275970Scy			  u16 *blue, int regno);
56275970Scy
57275970Scy	int (*fb_probe)(struct drm_fb_helper *helper,
58301301Sdelphij			struct drm_fb_helper_surface_size *sizes);
59275970Scy};
60275970Scy
61275970Scystruct drm_fb_helper_connector {
62275970Scy	struct drm_connector *connector;
63275970Scy	struct drm_cmdline_mode cmdline_mode;
64275970Scy};
65275970Scy
66275970Scystruct drm_fb_helper {
67275970Scy	struct drm_framebuffer *fb;
68275970Scy	struct drm_framebuffer *saved_fb;
69275970Scy	struct drm_device *dev;
70275970Scy	struct drm_display_mode *mode;
71275970Scy	int crtc_count;
72275970Scy	struct drm_fb_helper_crtc *crtc_info;
73275970Scy	int connector_count;
74275970Scy	struct drm_fb_helper_connector **connector_info;
75275970Scy	struct drm_fb_helper_funcs *funcs;
76275970Scy	struct fb_info *fbdev;
77275970Scy	u32 pseudo_palette[17];
78275970Scy	struct list_head kernel_fb_list;
79275970Scy
80275970Scy	/* we got a hotplug but fbdev wasn't running the console
81275970Scy	   delay until next set_par */
82275970Scy	bool delayed_hotplug;
83275970Scy};
84275970Scy
85275970Scyint drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
86275970Scy				  int preferred_bpp);
87275970Scy
88275970Scyint drm_fb_helper_init(struct drm_device *dev,
89		       struct drm_fb_helper *helper, int crtc_count,
90		       int max_conn);
91void drm_fb_helper_fini(struct drm_fb_helper *helper);
92int drm_fb_helper_blank(int blank, struct fb_info *info);
93#ifdef FREEBSD_NOTYET
94int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
95			      struct fb_info *info);
96#endif /* FREEBSD_NOTYET */
97int drm_fb_helper_set_par(struct fb_info *info);
98#ifdef FREEBSD_NOTYET
99int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
100			    struct fb_info *info);
101#endif /* FREEBSD_NOTYET */
102int drm_fb_helper_setcolreg(unsigned regno,
103			    unsigned red,
104			    unsigned green,
105			    unsigned blue,
106			    unsigned transp,
107			    struct fb_info *info);
108
109bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper);
110void drm_fb_helper_restore(void);
111void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
112			    uint32_t fb_width, uint32_t fb_height);
113void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
114			    uint32_t depth);
115
116#ifdef FREEBSD_NOTYET
117int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
118#endif /* FREEBSD_NOTYET */
119
120int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
121bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
122int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
123int drm_fb_helper_debug_enter(struct fb_info *info);
124int drm_fb_helper_debug_leave(struct fb_info *info);
125
126#endif
127