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 * $FreeBSD$
31 */
32#ifndef DRM_FB_HELPER_H
33#define DRM_FB_HELPER_H
34
35struct drm_fb_helper;
36
37struct drm_fb_helper_crtc {
38	uint32_t crtc_id;
39	struct drm_mode_set mode_set;
40	struct drm_display_mode *desired_mode;
41};
42
43/* mode specified on the command line */
44struct drm_fb_helper_cmdline_mode {
45	bool specified;
46	bool refresh_specified;
47	bool bpp_specified;
48	int xres, yres;
49	int bpp;
50	int refresh;
51	bool rb;
52	bool interlace;
53	bool cvt;
54	bool margins;
55};
56
57struct drm_fb_helper_surface_size {
58	u32 fb_width;
59	u32 fb_height;
60	u32 surface_width;
61	u32 surface_height;
62	u32 surface_bpp;
63	u32 surface_depth;
64};
65
66struct drm_fb_helper_funcs {
67	void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
68			  u16 blue, int regno);
69	void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
70			  u16 *blue, int regno);
71
72	int (*fb_probe)(struct drm_fb_helper *helper,
73			struct drm_fb_helper_surface_size *sizes);
74};
75
76struct drm_fb_helper_connector {
77	struct drm_fb_helper_cmdline_mode cmdline_mode;
78	struct drm_cmdline_mode cmdline_mode1;
79	struct drm_connector *connector;
80};
81
82struct drm_fb_helper {
83	struct drm_framebuffer *fb;
84	struct drm_framebuffer *saved_fb;
85	struct drm_device *dev;
86	struct drm_display_mode *mode;
87	int crtc_count;
88	struct drm_fb_helper_crtc *crtc_info;
89	int connector_count;
90	struct drm_fb_helper_connector **connector_info;
91	struct drm_fb_helper_funcs *funcs;
92	int conn_limit;
93	struct fb_info *fbdev;
94	u32 pseudo_palette[17];
95	struct list_head kernel_fb_list;
96
97	/* we got a hotplug but fbdev wasn't running the console
98	   delay until next set_par */
99	bool delayed_hotplug;
100};
101
102struct fb_var_screeninfo;
103struct fb_cmap;
104
105int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
106				  int preferred_bpp);
107
108int drm_fb_helper_init(struct drm_device *dev,
109		       struct drm_fb_helper *helper, int crtc_count,
110		       int max_conn);
111void drm_fb_helper_fini(struct drm_fb_helper *helper);
112int drm_fb_helper_blank(int blank, struct fb_info *info);
113int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
114			      struct fb_info *info);
115int drm_fb_helper_set_par(struct fb_info *info);
116int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
117			    struct fb_info *info);
118int drm_fb_helper_setcolreg(unsigned regno,
119			    unsigned red,
120			    unsigned green,
121			    unsigned blue,
122			    unsigned transp,
123			    struct fb_info *info);
124
125bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper);
126void drm_fb_helper_restore(void);
127void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
128			    uint32_t fb_width, uint32_t fb_height);
129void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
130			    uint32_t depth);
131
132int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
133
134int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
135bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
136int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
137int drm_fb_helper_debug_enter(struct fb_info *info);
138int drm_fb_helper_debug_leave(struct fb_info *info);
139bool drm_fb_helper_force_kernel_mode(void);
140
141#endif
142