drm_modes.h revision 1.1.1.2
1 /* $NetBSD: drm_modes.h,v 1.1.1.2 2018/08/27 01:35:00 riastradh Exp $ */ 2 3 /* 4 * Copyright 2006 Keith Packard 5 * Copyright 2007-2008 Dave Airlie 6 * Copyright 2007-2008 Intel Corporation 7 * Jesse Barnes <jesse.barnes (at) intel.com> 8 * Copyright 2014 Intel Corporation 9 * Daniel Vetter <daniel.vetter (at) ffwll.ch> 10 * 11 * Permission is hereby granted, free of charge, to any person obtaining a 12 * copy of this software and associated documentation files (the "Software"), 13 * to deal in the Software without restriction, including without limitation 14 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 15 * and/or sell copies of the Software, and to permit persons to whom the 16 * Software is furnished to do so, subject to the following conditions: 17 * 18 * The above copyright notice and this permission notice shall be included in 19 * all copies or substantial portions of the Software. 20 * 21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 24 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 25 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 26 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 27 * OTHER DEALINGS IN THE SOFTWARE. 28 */ 29 #ifndef __DRM_MODES_H__ 30 #define __DRM_MODES_H__ 31 32 /* 33 * Note on terminology: here, for brevity and convenience, we refer to connector 34 * control chips as 'CRTCs'. They can control any type of connector, VGA, LVDS, 35 * DVI, etc. And 'screen' refers to the whole of the visible display, which 36 * may span multiple monitors (and therefore multiple CRTC and connector 37 * structures). 38 */ 39 40 enum drm_mode_status { 41 MODE_OK = 0, /* Mode OK */ 42 MODE_HSYNC, /* hsync out of range */ 43 MODE_VSYNC, /* vsync out of range */ 44 MODE_H_ILLEGAL, /* mode has illegal horizontal timings */ 45 MODE_V_ILLEGAL, /* mode has illegal horizontal timings */ 46 MODE_BAD_WIDTH, /* requires an unsupported linepitch */ 47 MODE_NOMODE, /* no mode with a matching name */ 48 MODE_NO_INTERLACE, /* interlaced mode not supported */ 49 MODE_NO_DBLESCAN, /* doublescan mode not supported */ 50 MODE_NO_VSCAN, /* multiscan mode not supported */ 51 MODE_MEM, /* insufficient video memory */ 52 MODE_VIRTUAL_X, /* mode width too large for specified virtual size */ 53 MODE_VIRTUAL_Y, /* mode height too large for specified virtual size */ 54 MODE_MEM_VIRT, /* insufficient video memory given virtual size */ 55 MODE_NOCLOCK, /* no fixed clock available */ 56 MODE_CLOCK_HIGH, /* clock required is too high */ 57 MODE_CLOCK_LOW, /* clock required is too low */ 58 MODE_CLOCK_RANGE, /* clock/mode isn't in a ClockRange */ 59 MODE_BAD_HVALUE, /* horizontal timing was out of range */ 60 MODE_BAD_VVALUE, /* vertical timing was out of range */ 61 MODE_BAD_VSCAN, /* VScan value out of range */ 62 MODE_HSYNC_NARROW, /* horizontal sync too narrow */ 63 MODE_HSYNC_WIDE, /* horizontal sync too wide */ 64 MODE_HBLANK_NARROW, /* horizontal blanking too narrow */ 65 MODE_HBLANK_WIDE, /* horizontal blanking too wide */ 66 MODE_VSYNC_NARROW, /* vertical sync too narrow */ 67 MODE_VSYNC_WIDE, /* vertical sync too wide */ 68 MODE_VBLANK_NARROW, /* vertical blanking too narrow */ 69 MODE_VBLANK_WIDE, /* vertical blanking too wide */ 70 MODE_PANEL, /* exceeds panel dimensions */ 71 MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */ 72 MODE_ONE_WIDTH, /* only one width is supported */ 73 MODE_ONE_HEIGHT, /* only one height is supported */ 74 MODE_ONE_SIZE, /* only one resolution is supported */ 75 MODE_NO_REDUCED, /* monitor doesn't accept reduced blanking */ 76 MODE_NO_STEREO, /* stereo modes not supported */ 77 MODE_UNVERIFIED = -3, /* mode needs to reverified */ 78 MODE_BAD = -2, /* unspecified reason */ 79 MODE_ERROR = -1 /* error condition */ 80 }; 81 82 #define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \ 83 DRM_MODE_TYPE_CRTC_C) 84 85 #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \ 86 .name = nm, .status = 0, .type = (t), .clock = (c), \ 87 .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \ 88 .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \ 89 .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \ 90 .vscan = (vs), .flags = (f), \ 91 .base.type = DRM_MODE_OBJECT_MODE 92 93 #define CRTC_INTERLACE_HALVE_V (1 << 0) /* halve V values for interlacing */ 94 #define CRTC_STEREO_DOUBLE (1 << 1) /* adjust timings for stereo modes */ 95 #define CRTC_NO_DBLSCAN (1 << 2) /* don't adjust doublescan */ 96 #define CRTC_NO_VSCAN (1 << 3) /* don't adjust doublescan */ 97 #define CRTC_STEREO_DOUBLE_ONLY (CRTC_STEREO_DOUBLE | CRTC_NO_DBLSCAN | CRTC_NO_VSCAN) 98 99 #define DRM_MODE_FLAG_3D_MAX DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF 100 101 struct drm_display_mode { 102 /* Header */ 103 struct list_head head; 104 struct drm_mode_object base; 105 106 char name[DRM_DISPLAY_MODE_LEN]; 107 108 enum drm_mode_status status; 109 unsigned int type; 110 111 /* Proposed mode values */ 112 int clock; /* in kHz */ 113 int hdisplay; 114 int hsync_start; 115 int hsync_end; 116 int htotal; 117 int hskew; 118 int vdisplay; 119 int vsync_start; 120 int vsync_end; 121 int vtotal; 122 int vscan; 123 unsigned int flags; 124 125 /* Addressable image size (may be 0 for projectors, etc.) */ 126 int width_mm; 127 int height_mm; 128 129 /* Actual mode we give to hw */ 130 int crtc_clock; /* in KHz */ 131 int crtc_hdisplay; 132 int crtc_hblank_start; 133 int crtc_hblank_end; 134 int crtc_hsync_start; 135 int crtc_hsync_end; 136 int crtc_htotal; 137 int crtc_hskew; 138 int crtc_vdisplay; 139 int crtc_vblank_start; 140 int crtc_vblank_end; 141 int crtc_vsync_start; 142 int crtc_vsync_end; 143 int crtc_vtotal; 144 145 /* Driver private mode info */ 146 int *private; 147 int private_flags; 148 149 int vrefresh; /* in Hz */ 150 int hsync; /* in kHz */ 151 enum hdmi_picture_aspect picture_aspect_ratio; 152 }; 153 154 /* mode specified on the command line */ 155 struct drm_cmdline_mode { 156 bool specified; 157 bool refresh_specified; 158 bool bpp_specified; 159 int xres, yres; 160 int bpp; 161 int refresh; 162 bool rb; 163 bool interlace; 164 bool cvt; 165 bool margins; 166 enum drm_connector_force force; 167 }; 168 169 /** 170 * drm_mode_is_stereo - check for stereo mode flags 171 * @mode: drm_display_mode to check 172 * 173 * Returns: 174 * True if the mode is one of the stereo modes (like side-by-side), false if 175 * not. 176 */ 177 static inline bool drm_mode_is_stereo(const struct drm_display_mode *mode) 178 { 179 return mode->flags & DRM_MODE_FLAG_3D_MASK; 180 } 181 182 struct drm_connector; 183 struct drm_cmdline_mode; 184 185 struct drm_display_mode *drm_mode_create(struct drm_device *dev); 186 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); 187 void drm_mode_convert_to_umode(struct drm_mode_modeinfo *out, 188 const struct drm_display_mode *in); 189 int drm_mode_convert_umode(struct drm_display_mode *out, 190 const struct drm_mode_modeinfo *in); 191 void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode); 192 void drm_mode_debug_printmodeline(const struct drm_display_mode *mode); 193 194 struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, 195 int hdisplay, int vdisplay, int vrefresh, 196 bool reduced, bool interlaced, 197 bool margins); 198 struct drm_display_mode *drm_gtf_mode(struct drm_device *dev, 199 int hdisplay, int vdisplay, int vrefresh, 200 bool interlaced, int margins); 201 struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev, 202 int hdisplay, int vdisplay, 203 int vrefresh, bool interlaced, 204 int margins, 205 int GTF_M, int GTF_2C, 206 int GTF_K, int GTF_2J); 207 void drm_display_mode_from_videomode(const struct videomode *vm, 208 struct drm_display_mode *dmode); 209 void drm_display_mode_to_videomode(const struct drm_display_mode *dmode, 210 struct videomode *vm); 211 int of_get_drm_display_mode(struct device_node *np, 212 struct drm_display_mode *dmode, 213 int index); 214 215 void drm_mode_set_name(struct drm_display_mode *mode); 216 int drm_mode_hsync(const struct drm_display_mode *mode); 217 int drm_mode_vrefresh(const struct drm_display_mode *mode); 218 219 void drm_mode_set_crtcinfo(struct drm_display_mode *p, 220 int adjust_flags); 221 void drm_mode_copy(struct drm_display_mode *dst, 222 const struct drm_display_mode *src); 223 struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev, 224 const struct drm_display_mode *mode); 225 bool drm_mode_equal(const struct drm_display_mode *mode1, 226 const struct drm_display_mode *mode2); 227 bool drm_mode_equal_no_clocks_no_stereo(const struct drm_display_mode *mode1, 228 const struct drm_display_mode *mode2); 229 230 /* for use by the crtc helper probe functions */ 231 enum drm_mode_status drm_mode_validate_basic(const struct drm_display_mode *mode); 232 enum drm_mode_status drm_mode_validate_size(const struct drm_display_mode *mode, 233 int maxX, int maxY); 234 void drm_mode_prune_invalid(struct drm_device *dev, 235 struct list_head *mode_list, bool verbose); 236 void drm_mode_sort(struct list_head *mode_list); 237 void drm_mode_connector_list_update(struct drm_connector *connector, bool merge_type_bits); 238 239 /* parsing cmdline modes */ 240 bool 241 drm_mode_parse_command_line_for_connector(const char *mode_option, 242 struct drm_connector *connector, 243 struct drm_cmdline_mode *mode); 244 struct drm_display_mode * 245 drm_mode_create_from_cmdline_mode(struct drm_device *dev, 246 struct drm_cmdline_mode *cmd); 247 248 #endif /* __DRM_MODES_H__ */ 249
Indexes created Mon Oct 13 08:09:50 GMT 2025