Dr Andrew Scott G7VAV

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drm_mode.h
001: /*
002:  * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
003:  * Copyright (c) 2007 Jakob Bornecrantz <wallbraker@gmail.com>
004:  * Copyright (c) 2008 Red Hat Inc.
005:  * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
006:  * Copyright (c) 2007-2008 Intel Corporation
007:  *
008:  * Permission is hereby granted, free of charge, to any person obtaining a
009:  * copy of this software and associated documentation files (the "Software"),
010:  * to deal in the Software without restriction, including without limitation
011:  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
012:  * and/or sell copies of the Software, and to permit persons to whom the
013:  * Software is furnished to do so, subject to the following conditions:
014:  *
015:  * The above copyright notice and this permission notice shall be included in
016:  * all copies or substantial portions of the Software.
017:  *
018:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
019:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
020:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
021:  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
022:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
023:  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
024:  * IN THE SOFTWARE.
025:  */
026: 
027: #ifndef _DRM_MODE_H
028: #define _DRM_MODE_H
029: 
030: #define DRM_DISPLAY_INFO_LEN    32
031: #define DRM_CONNECTOR_NAME_LEN  32
032: #define DRM_DISPLAY_MODE_LEN    32
033: #define DRM_PROP_NAME_LEN       32
034: 
035: #define DRM_MODE_TYPE_BUILTIN   (1<<0)
036: #define DRM_MODE_TYPE_CLOCK_C   ((1<<1) | DRM_MODE_TYPE_BUILTIN)
037: #define DRM_MODE_TYPE_CRTC_C    ((1<<2) | DRM_MODE_TYPE_BUILTIN)
038: #define DRM_MODE_TYPE_PREFERRED (1<<3)
039: #define DRM_MODE_TYPE_DEFAULT   (1<<4)
040: #define DRM_MODE_TYPE_USERDEF   (1<<5)
041: #define DRM_MODE_TYPE_DRIVER    (1<<6)
042: 
043: /* Video mode flags */
044: /* bit compatible with the xorg definitions. */
045: #define DRM_MODE_FLAG_PHSYNC    (1<<0)
046: #define DRM_MODE_FLAG_NHSYNC    (1<<1)
047: #define DRM_MODE_FLAG_PVSYNC    (1<<2)
048: #define DRM_MODE_FLAG_NVSYNC    (1<<3)
049: #define DRM_MODE_FLAG_INTERLACE (1<<4)
050: #define DRM_MODE_FLAG_DBLSCAN   (1<<5)
051: #define DRM_MODE_FLAG_CSYNC     (1<<6)
052: #define DRM_MODE_FLAG_PCSYNC    (1<<7)
053: #define DRM_MODE_FLAG_NCSYNC    (1<<8)
054: #define DRM_MODE_FLAG_HSKEW     (1<<9) /* hskew provided */
055: #define DRM_MODE_FLAG_BCAST     (1<<10)
056: #define DRM_MODE_FLAG_PIXMUX    (1<<11)
057: #define DRM_MODE_FLAG_DBLCLK    (1<<12)
058: #define DRM_MODE_FLAG_CLKDIV2   (1<<13)
059: 
060: /* DPMS flags */
061: /* bit compatible with the xorg definitions. */
062: #define DRM_MODE_DPMS_ON        0
063: #define DRM_MODE_DPMS_STANDBY   1
064: #define DRM_MODE_DPMS_SUSPEND   2
065: #define DRM_MODE_DPMS_OFF       3
066: 
067: /* Scaling mode options */
068: #define DRM_MODE_SCALE_NONE             0 /* Unmodified timing (display or
069:                                              software can still scale) */
070: #define DRM_MODE_SCALE_FULLSCREEN       1 /* Full screen, ignore aspect */
071: #define DRM_MODE_SCALE_CENTER           2 /* Centered, no scaling */
072: #define DRM_MODE_SCALE_ASPECT           3 /* Full screen, preserve aspect */
073: 
074: /* Dithering mode options */
075: #define DRM_MODE_DITHERING_OFF  0
076: #define DRM_MODE_DITHERING_ON   1
077: #define DRM_MODE_DITHERING_AUTO 2
078: 
079: /* Dirty info options */
080: #define DRM_MODE_DIRTY_OFF      0
081: #define DRM_MODE_DIRTY_ON       1
082: #define DRM_MODE_DIRTY_ANNOTATE 2
083: 
084: struct drm_mode_modeinfo {
085:         __u32 clock;
086:         __u16 hdisplay, hsync_start, hsync_end, htotal, hskew;
087:         __u16 vdisplay, vsync_start, vsync_end, vtotal, vscan;
088: 
089:         __u32 vrefresh;
090: 
091:         __u32 flags;
092:         __u32 type;
093:         char name[DRM_DISPLAY_MODE_LEN];
094: };
095: 
096: struct drm_mode_card_res {
097:         __u64 fb_id_ptr;
098:         __u64 crtc_id_ptr;
099:         __u64 connector_id_ptr;
100:         __u64 encoder_id_ptr;
101:         __u32 count_fbs;
102:         __u32 count_crtcs;
103:         __u32 count_connectors;
104:         __u32 count_encoders;
105:         __u32 min_width, max_width;
106:         __u32 min_height, max_height;
107: };
108: 
109: struct drm_mode_crtc {
110:         __u64 set_connectors_ptr;
111:         __u32 count_connectors;
112: 
113:         __u32 crtc_id; /**< Id */
114:         __u32 fb_id; /**< Id of framebuffer */
115: 
116:         __u32 x, y; /**< Position on the frameuffer */
117: 
118:         __u32 gamma_size;
119:         __u32 mode_valid;
120:         struct drm_mode_modeinfo mode;
121: };
122: 
123: #define DRM_MODE_ENCODER_NONE    0
124: #define DRM_MODE_ENCODER_DAC     1
125: #define DRM_MODE_ENCODER_TMDS    2
126: #define DRM_MODE_ENCODER_LVDS    3
127: #define DRM_MODE_ENCODER_TVDAC   4
128: #define DRM_MODE_ENCODER_VIRTUAL 5
129: 
130: struct drm_mode_get_encoder {
131:         __u32 encoder_id;
132:         __u32 encoder_type;
133: 
134:         __u32 crtc_id; /**< Id of crtc */
135: 
136:         __u32 possible_crtcs;
137:         __u32 possible_clones;
138: };
139: 
140: /* This is for connectors with multiple signal types. */
141: /* Try to match DRM_MODE_CONNECTOR_X as closely as possible. */
142: #define DRM_MODE_SUBCONNECTOR_Automatic 0
143: #define DRM_MODE_SUBCONNECTOR_Unknown   0
144: #define DRM_MODE_SUBCONNECTOR_DVID      3
145: #define DRM_MODE_SUBCONNECTOR_DVIA      4
146: #define DRM_MODE_SUBCONNECTOR_Composite 5
147: #define DRM_MODE_SUBCONNECTOR_SVIDEO    6
148: #define DRM_MODE_SUBCONNECTOR_Component 8
149: #define DRM_MODE_SUBCONNECTOR_SCART     9
150: 
151: #define DRM_MODE_CONNECTOR_Unknown      0
152: #define DRM_MODE_CONNECTOR_VGA          1
153: #define DRM_MODE_CONNECTOR_DVII         2
154: #define DRM_MODE_CONNECTOR_DVID         3
155: #define DRM_MODE_CONNECTOR_DVIA         4
156: #define DRM_MODE_CONNECTOR_Composite    5
157: #define DRM_MODE_CONNECTOR_SVIDEO       6
158: #define DRM_MODE_CONNECTOR_LVDS         7
159: #define DRM_MODE_CONNECTOR_Component    8
160: #define DRM_MODE_CONNECTOR_9PinDIN      9
161: #define DRM_MODE_CONNECTOR_DisplayPort  10
162: #define DRM_MODE_CONNECTOR_HDMIA        11
163: #define DRM_MODE_CONNECTOR_HDMIB        12
164: #define DRM_MODE_CONNECTOR_TV           13
165: #define DRM_MODE_CONNECTOR_eDP          14
166: #define DRM_MODE_CONNECTOR_VIRTUAL      15
167: 
168: struct drm_mode_get_connector {
169: 
170:         __u64 encoders_ptr;
171:         __u64 modes_ptr;
172:         __u64 props_ptr;
173:         __u64 prop_values_ptr;
174: 
175:         __u32 count_modes;
176:         __u32 count_props;
177:         __u32 count_encoders;
178: 
179:         __u32 encoder_id; /**< Current Encoder */
180:         __u32 connector_id; /**< Id */
181:         __u32 connector_type;
182:         __u32 connector_type_id;
183: 
184:         __u32 connection;
185:         __u32 mm_width, mm_height; /**< HxW in millimeters */
186:         __u32 subpixel;
187: };
188: 
189: #define DRM_MODE_PROP_PENDING   (1<<0)
190: #define DRM_MODE_PROP_RANGE     (1<<1)
191: #define DRM_MODE_PROP_IMMUTABLE (1<<2)
192: #define DRM_MODE_PROP_ENUM      (1<<3) /* enumerated type with text strings */
193: #define DRM_MODE_PROP_BLOB      (1<<4)
194: 
195: struct drm_mode_property_enum {
196:         __u64 value;
197:         char name[DRM_PROP_NAME_LEN];
198: };
199: 
200: struct drm_mode_get_property {
201:         __u64 values_ptr; /* values and blob lengths */
202:         __u64 enum_blob_ptr; /* enum and blob id ptrs */
203: 
204:         __u32 prop_id;
205:         __u32 flags;
206:         char name[DRM_PROP_NAME_LEN];
207: 
208:         __u32 count_values;
209:         __u32 count_enum_blobs;
210: };
211: 
212: struct drm_mode_connector_set_property {
213:         __u64 value;
214:         __u32 prop_id;
215:         __u32 connector_id;
216: };
217: 
218: struct drm_mode_get_blob {
219:         __u32 blob_id;
220:         __u32 length;
221:         __u64 data;
222: };
223: 
224: struct drm_mode_fb_cmd {
225:         __u32 fb_id;
226:         __u32 width, height;
227:         __u32 pitch;
228:         __u32 bpp;
229:         __u32 depth;
230:         /* driver specific handle */
231:         __u32 handle;
232: };
233: 
234: #define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01
235: #define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02
236: #define DRM_MODE_FB_DIRTY_FLAGS         0x03
237: 
238: #define DRM_MODE_FB_DIRTY_MAX_CLIPS     256
239: 
240: /*
241:  * Mark a region of a framebuffer as dirty.
242:  *
243:  * Some hardware does not automatically update display contents
244:  * as a hardware or software draw to a framebuffer. This ioctl
245:  * allows userspace to tell the kernel and the hardware what
246:  * regions of the framebuffer have changed.
247:  *
248:  * The kernel or hardware is free to update more then just the
249:  * region specified by the clip rects. The kernel or hardware
250:  * may also delay and/or coalesce several calls to dirty into a
251:  * single update.
252:  *
253:  * Userspace may annotate the updates, the annotates are a
254:  * promise made by the caller that the change is either a copy
255:  * of pixels or a fill of a single color in the region specified.
256:  *
257:  * If the DRM_MODE_FB_DIRTY_ANNOTATE_COPY flag is given then
258:  * the number of updated regions are half of num_clips given,
259:  * where the clip rects are paired in src and dst. The width and
260:  * height of each one of the pairs must match.
261:  *
262:  * If the DRM_MODE_FB_DIRTY_ANNOTATE_FILL flag is given the caller
263:  * promises that the region specified of the clip rects is filled
264:  * completely with a single color as given in the color argument.
265:  */
266: 
267: struct drm_mode_fb_dirty_cmd {
268:         __u32 fb_id;
269:         __u32 flags;
270:         __u32 color;
271:         __u32 num_clips;
272:         __u64 clips_ptr;
273: };
274: 
275: struct drm_mode_mode_cmd {
276:         __u32 connector_id;
277:         struct drm_mode_modeinfo mode;
278: };
279: 
280: #define DRM_MODE_CURSOR_BO      0x01
281: #define DRM_MODE_CURSOR_MOVE    0x02
282: #define DRM_MODE_CURSOR_FLAGS   0x03
283: 
284: /*
285:  * depending on the value in flags different members are used.
286:  *
287:  * CURSOR_BO uses
288:  *    crtc
289:  *    width
290:  *    height
291:  *    handle - if 0 turns the cursor of
292:  *
293:  * CURSOR_MOVE uses
294:  *    crtc
295:  *    x
296:  *    y
297:  */
298: struct drm_mode_cursor {
299:         __u32 flags;
300:         __u32 crtc_id;
301:         __s32 x;
302:         __s32 y;
303:         __u32 width;
304:         __u32 height;
305:         /* driver specific handle */
306:         __u32 handle;
307: };
308: 
309: struct drm_mode_crtc_lut {
310:         __u32 crtc_id;
311:         __u32 gamma_size;
312: 
313:         /* pointers to arrays */
314:         __u64 red;
315:         __u64 green;
316:         __u64 blue;
317: };
318: 
319: #define DRM_MODE_PAGE_FLIP_EVENT 0x01
320: #define DRM_MODE_PAGE_FLIP_FLAGS DRM_MODE_PAGE_FLIP_EVENT
321: 
322: /*
323:  * Request a page flip on the specified crtc.
324:  *
325:  * This ioctl will ask KMS to schedule a page flip for the specified
326:  * crtc.  Once any pending rendering targeting the specified fb (as of
327:  * ioctl time) has completed, the crtc will be reprogrammed to display
328:  * that fb after the next vertical refresh.  The ioctl returns
329:  * immediately, but subsequent rendering to the current fb will block
330:  * in the execbuffer ioctl until the page flip happens.  If a page
331:  * flip is already pending as the ioctl is called, EBUSY will be
332:  * returned.
333:  *
334:  * The ioctl supports one flag, DRM_MODE_PAGE_FLIP_EVENT, which will
335:  * request that drm sends back a vblank event (see drm.h: struct
336:  * drm_event_vblank) when the page flip is done.  The user_data field
337:  * passed in with this ioctl will be returned as the user_data field
338:  * in the vblank event struct.
339:  *
340:  * The reserved field must be zero until we figure out something
341:  * clever to use it for.
342:  */
343: 
344: struct drm_mode_crtc_page_flip {
345:         __u32 crtc_id;
346:         __u32 fb_id;
347:         __u32 flags;
348:         __u32 reserved;
349:         __u64 user_data;
350: };
351: 
352: /* create a dumb scanout buffer */
353: struct drm_mode_create_dumb {
354:         uint32_t height;
355:         uint32_t width;
356:         uint32_t bpp;
357:         uint32_t flags;
358:         /* handle, pitch, size will be returned */
359:         uint32_t handle;
360:         uint32_t pitch;
361:         uint64_t size;
362: };
363: 
364: /* set up for mmap of a dumb scanout buffer */
365: struct drm_mode_map_dumb {
366:         /** Handle for the object being mapped. */
367:         __u32 handle;
368:         __u32 pad;
369:         /**
370:          * Fake offset to use for subsequent mmap call
371:          *
372:          * This is a fixed-size type for 32/64 compatibility.
373:          */
374:         __u64 offset;
375: };
376: 
377: struct drm_mode_destroy_dumb {
378:         uint32_t handle;
379: };
380: 
381: #endif
382: 


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© Andrew Scott 2006 - 2025,
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http://www.andrew-scott.uk/
Andrew Scott
http://www.andrew-scott.co.uk/