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gerrit-public.fairphone.software / kernel / msm-4.9 / 619b5891903936f3e493bf8cda18a8b6664fcdd7 / . / include / drm / drm_modes.h
blob: 2dbbf997666937fc3a4efb57519d87ccb85c59cf [file] [log] [blame]
Daniel Vetter55310002014-01-23 15:52:20 +0100[diff] [blame]1/*
2 * Copyright © 2006 Keith Packard
3 * Copyright © 2007-2008 Dave Airlie
4 * Copyright © 2007-2008 Intel Corporation
5 * Jesse Barnes <jesse.barnes@intel.com>
6 * Copyright © 2014 Intel Corporation
7 * Daniel Vetter <daniel.vetter@ffwll.ch>
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
26 */
27#ifndef __DRM_MODES_H__
28#define __DRM_MODES_H__
29
30/*
31 * Note on terminology: here, for brevity and convenience, we refer to connector
32 * control chips as 'CRTCs'. They can control any type of connector, VGA, LVDS,
33 * DVI, etc. And 'screen' refers to the whole of the visible display, which
34 * may span multiple monitors (and therefore multiple CRTC and connector
35 * structures).
36 */
37
38enum drm_mode_status {
39 MODE_OK = 0, /* Mode OK */
40 MODE_HSYNC, /* hsync out of range */
41 MODE_VSYNC, /* vsync out of range */
42 MODE_H_ILLEGAL, /* mode has illegal horizontal timings */
43 MODE_V_ILLEGAL, /* mode has illegal horizontal timings */
44 MODE_BAD_WIDTH, /* requires an unsupported linepitch */
45 MODE_NOMODE, /* no mode with a matching name */
46 MODE_NO_INTERLACE, /* interlaced mode not supported */
47 MODE_NO_DBLESCAN, /* doublescan mode not supported */
48 MODE_NO_VSCAN, /* multiscan mode not supported */
49 MODE_MEM, /* insufficient video memory */
50 MODE_VIRTUAL_X, /* mode width too large for specified virtual size */
51 MODE_VIRTUAL_Y, /* mode height too large for specified virtual size */
52 MODE_MEM_VIRT, /* insufficient video memory given virtual size */
53 MODE_NOCLOCK, /* no fixed clock available */
54 MODE_CLOCK_HIGH, /* clock required is too high */
55 MODE_CLOCK_LOW, /* clock required is too low */
56 MODE_CLOCK_RANGE, /* clock/mode isn't in a ClockRange */
57 MODE_BAD_HVALUE, /* horizontal timing was out of range */
58 MODE_BAD_VVALUE, /* vertical timing was out of range */
59 MODE_BAD_VSCAN, /* VScan value out of range */
60 MODE_HSYNC_NARROW, /* horizontal sync too narrow */
61 MODE_HSYNC_WIDE, /* horizontal sync too wide */
62 MODE_HBLANK_NARROW, /* horizontal blanking too narrow */
63 MODE_HBLANK_WIDE, /* horizontal blanking too wide */
64 MODE_VSYNC_NARROW, /* vertical sync too narrow */
65 MODE_VSYNC_WIDE, /* vertical sync too wide */
66 MODE_VBLANK_NARROW, /* vertical blanking too narrow */
67 MODE_VBLANK_WIDE, /* vertical blanking too wide */
68 MODE_PANEL, /* exceeds panel dimensions */
69 MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */
70 MODE_ONE_WIDTH, /* only one width is supported */
71 MODE_ONE_HEIGHT, /* only one height is supported */
72 MODE_ONE_SIZE, /* only one resolution is supported */
73 MODE_NO_REDUCED, /* monitor doesn't accept reduced blanking */
74 MODE_NO_STEREO, /* stereo modes not supported */
75 MODE_UNVERIFIED = -3, /* mode needs to reverified */
76 MODE_BAD = -2, /* unspecified reason */
77 MODE_ERROR = -1 /* error condition */
78};
79
80#define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \
81 DRM_MODE_TYPE_CRTC_C)
82
83#define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
84 .name = nm, .status = 0, .type = (t), .clock = (c), \
85 .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
86 .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
87 .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
88 .vscan = (vs), .flags = (f), \
89 .base.type = DRM_MODE_OBJECT_MODE
90
91#define CRTC_INTERLACE_HALVE_V (1 << 0) /* halve V values for interlacing */
92#define CRTC_STEREO_DOUBLE (1 << 1) /* adjust timings for stereo modes */
93
94#define DRM_MODE_FLAG_3D_MAX DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
95
96struct drm_display_mode {
97 /* Header */
98 struct list_head head;
99 struct drm_mode_object base;
100
101 char name[DRM_DISPLAY_MODE_LEN];
102
103 enum drm_mode_status status;
104 unsigned int type;
105
106 /* Proposed mode values */
107 int clock; /* in kHz */
108 int hdisplay;
109 int hsync_start;
110 int hsync_end;
111 int htotal;
112 int hskew;
113 int vdisplay;
114 int vsync_start;
115 int vsync_end;
116 int vtotal;
117 int vscan;
118 unsigned int flags;
119
120 /* Addressable image size (may be 0 for projectors, etc.) */
121 int width_mm;
122 int height_mm;
123
124 /* Actual mode we give to hw */
125 int crtc_clock; /* in KHz */
126 int crtc_hdisplay;
127 int crtc_hblank_start;
128 int crtc_hblank_end;
129 int crtc_hsync_start;
130 int crtc_hsync_end;
131 int crtc_htotal;
132 int crtc_hskew;
133 int crtc_vdisplay;
134 int crtc_vblank_start;
135 int crtc_vblank_end;
136 int crtc_vsync_start;
137 int crtc_vsync_end;
138 int crtc_vtotal;
139
140 /* Driver private mode info */
Daniel Vetter55310002014-01-23 15:52:20 +0100[diff] [blame]141 int *private;
142 int private_flags;
143
144 int vrefresh; /* in Hz */
145 int hsync; /* in kHz */
146 enum hdmi_picture_aspect picture_aspect_ratio;
147};
148
149/* mode specified on the command line */
150struct drm_cmdline_mode {
151 bool specified;
152 bool refresh_specified;
153 bool bpp_specified;
154 int xres, yres;
155 int bpp;
156 int refresh;
157 bool rb;
158 bool interlace;
159 bool cvt;
160 bool margins;
161 enum drm_connector_force force;
162};
163
Daniel Vetterf5aabb92014-01-23 20:05:00 +0100[diff] [blame]164/**
165 * drm_mode_is_stereo - check for stereo mode flags
166 * @mode: drm_display_mode to check
167 *
168 * Returns:
169 * True if the mode is one of the stereo modes (like side-by-side), false if
170 * not.
171 */
Daniel Vetter55310002014-01-23 15:52:20 +0100[diff] [blame]172static inline bool drm_mode_is_stereo(const struct drm_display_mode *mode)
173{
174 return mode->flags & DRM_MODE_FLAG_3D_MASK;
175}
176
177struct drm_connector;
178struct drm_cmdline_mode;
179
180struct drm_display_mode *drm_mode_create(struct drm_device *dev);
181void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
182void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
183void drm_mode_debug_printmodeline(const struct drm_display_mode *mode);
184
185struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
186 int hdisplay, int vdisplay, int vrefresh,
187 bool reduced, bool interlaced,
188 bool margins);
189struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
190 int hdisplay, int vdisplay, int vrefresh,
191 bool interlaced, int margins);
192struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
193 int hdisplay, int vdisplay,
194 int vrefresh, bool interlaced,
195 int margins,
196 int GTF_M, int GTF_2C,
197 int GTF_K, int GTF_2J);
Daniel Vetterba0c2422014-01-23 16:28:50 +0100[diff] [blame]198void drm_display_mode_from_videomode(const struct videomode *vm,
199 struct drm_display_mode *dmode);
Daniel Vetter55310002014-01-23 15:52:20 +0100[diff] [blame]200int of_get_drm_display_mode(struct device_node *np,
201 struct drm_display_mode *dmode,
202 int index);
203
204void drm_mode_set_name(struct drm_display_mode *mode);
Daniel Vetter55310002014-01-23 15:52:20 +0100[diff] [blame]205int drm_mode_hsync(const struct drm_display_mode *mode);
206int drm_mode_vrefresh(const struct drm_display_mode *mode);
207
208void drm_mode_set_crtcinfo(struct drm_display_mode *p,
209 int adjust_flags);
210void drm_mode_copy(struct drm_display_mode *dst,
211 const struct drm_display_mode *src);
212struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
213 const struct drm_display_mode *mode);
214bool drm_mode_equal(const struct drm_display_mode *mode1,
215 const struct drm_display_mode *mode2);
216bool drm_mode_equal_no_clocks_no_stereo(const struct drm_display_mode *mode1,
217 const struct drm_display_mode *mode2);
218
219/* for use by the crtc helper probe functions */
220void drm_mode_validate_size(struct drm_device *dev,
221 struct list_head *mode_list,
Daniel Vetter3e702922014-01-23 16:39:31 +0100[diff] [blame]222 int maxX, int maxY);
Daniel Vetter55310002014-01-23 15:52:20 +0100[diff] [blame]223void drm_mode_prune_invalid(struct drm_device *dev,
224 struct list_head *mode_list, bool verbose);
225void drm_mode_sort(struct list_head *mode_list);
226void drm_mode_connector_list_update(struct drm_connector *connector);
227
228/* parsing cmdline modes */
229bool
230drm_mode_parse_command_line_for_connector(const char *mode_option,
231 struct drm_connector *connector,
232 struct drm_cmdline_mode *mode);
233struct drm_display_mode *
234drm_mode_create_from_cmdline_mode(struct drm_device *dev,
235 struct drm_cmdline_mode *cmd);
236
237#endif /* __DRM_MODES_H__ */