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gerrit-public.fairphone.software / kernel / msm-4.9 / 1a7aba7f4e45014c5a4741164b1ecb4ffe616fb7 / . / include / drm / drm_fb_helper.h
blob: f22e7fe4b6dbf25815580ad3625fd09f5aed3946 [file] [log] [blame]
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]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
Dave Airlie4abe3522010-03-30 05:34:18 +0000[diff] [blame]33struct drm_fb_helper;
34
Jesse Barnes1a7aba72010-08-05 09:22:31 -0500[diff] [blame^]35#include <linux/kgdb.h>
36
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]37struct drm_fb_helper_crtc {
38 uint32_t crtc_id;
39 struct drm_mode_set mode_set;
Dave Airlie8be48d92010-03-30 05:34:14 +0000[diff] [blame]40 struct drm_display_mode *desired_mode;
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]41};
42
Dave Airlied50ba252009-09-23 14:44:08 +1000[diff] [blame]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
Dave Airlie38651672010-03-30 05:34:13 +0000[diff] [blame]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
Dave Airlie4abe3522010-03-30 05:34:18 +0000[diff] [blame]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);
Dave Airlie4abe3522010-03-30 05:34:18 +0000[diff] [blame]74};
75
Dave Airlied50ba252009-09-23 14:44:08 +1000[diff] [blame]76struct drm_fb_helper_connector {
77 struct drm_fb_helper_cmdline_mode cmdline_mode;
Dave Airlie0b4c0f32010-03-30 05:34:15 +0000[diff] [blame]78 struct drm_connector *connector;
Dave Airlied50ba252009-09-23 14:44:08 +1000[diff] [blame]79};
80
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]81struct drm_fb_helper {
82 struct drm_framebuffer *fb;
Jesse Barnes1a7aba72010-08-05 09:22:31 -0500[diff] [blame^]83 struct drm_framebuffer *saved_fb;
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]84 struct drm_device *dev;
85 struct drm_display_mode *mode;
86 int crtc_count;
87 struct drm_fb_helper_crtc *crtc_info;
Dave Airlie0b4c0f32010-03-30 05:34:15 +0000[diff] [blame]88 int connector_count;
89 struct drm_fb_helper_connector **connector_info;
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]90 struct drm_fb_helper_funcs *funcs;
91 int conn_limit;
Dave Airlie38651672010-03-30 05:34:13 +0000[diff] [blame]92 struct fb_info *fbdev;
93 u32 pseudo_palette[17];
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]94 struct list_head kernel_fb_list;
Dave Airlie8be48d92010-03-30 05:34:14 +0000[diff] [blame]95
Dave Airlie4abe3522010-03-30 05:34:18 +0000[diff] [blame]96 /* we got a hotplug but fbdev wasn't running the console
97 delay until next set_par */
98 bool delayed_hotplug;
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]99};
100
Dave Airlie8be48d92010-03-30 05:34:14 +0000[diff] [blame]101int drm_fb_helper_single_fb_probe(struct drm_fb_helper *helper,
102 int preferred_bpp);
103
Dave Airlie4abe3522010-03-30 05:34:18 +0000[diff] [blame]104int drm_fb_helper_init(struct drm_device *dev,
105 struct drm_fb_helper *helper, int crtc_count,
Dave Airlieeb1f8e42010-05-07 06:42:51 +0000[diff] [blame]106 int max_conn);
Dave Airlie4abe3522010-03-30 05:34:18 +0000[diff] [blame]107void drm_fb_helper_fini(struct drm_fb_helper *helper);
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]108int drm_fb_helper_blank(int blank, struct fb_info *info);
109int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
110 struct fb_info *info);
111int drm_fb_helper_set_par(struct fb_info *info);
112int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
113 struct fb_info *info);
114int drm_fb_helper_setcolreg(unsigned regno,
115 unsigned red,
116 unsigned green,
117 unsigned blue,
118 unsigned transp,
119 struct fb_info *info);
120
121void drm_fb_helper_restore(void);
Dave Airlie38651672010-03-30 05:34:13 +0000[diff] [blame]122void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]123 uint32_t fb_width, uint32_t fb_height);
Dave Airlie068143d2009-10-05 09:58:02 +1000[diff] [blame]124void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
125 uint32_t depth);
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]126
Dave Airlie068143d2009-10-05 09:58:02 +1000[diff] [blame]127int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
Dave Airlied50ba252009-09-23 14:44:08 +1000[diff] [blame]128
Dave Airlieeb1f8e42010-05-07 06:42:51 +0000[diff] [blame]129bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
Dave Airlie4abe3522010-03-30 05:34:18 +0000[diff] [blame]130bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
Dave Airlie0b4c0f32010-03-30 05:34:15 +0000[diff] [blame]131int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
Jesse Barnes1a7aba72010-08-05 09:22:31 -0500[diff] [blame^]132int drm_fb_helper_debug_enter(struct fb_info *info);
133int drm_fb_helper_debug_leave(struct fb_info *info);
Dave Airlie8be48d92010-03-30 05:34:14 +0000[diff] [blame]134
Dave Airlie785b93e2009-08-28 15:46:53 +1000[diff] [blame]135#endif