3 * Header for DRM modesetting interface.
5 * \author Jakob Bornecrantz <wallbraker@gmail.com>
7 * \par Acknowledgements:
8 * Feb 2007, Dave Airlie <airlied@linux.ie>
12 * Copyright (c) <year> <copyright holders>
14 * Permission is hereby granted, free of charge, to any person obtaining a
15 * copy of this software and associated documentation files (the "Software"),
16 * to deal in the Software without restriction, including without limitation
17 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
18 * and/or sell copies of the Software, and to permit persons to whom the
19 * Software is furnished to do so, subject to the following conditions:
21 * The above copyright notice and this permission notice shall be included in
22 * all copies or substantial portions of the Software.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
27 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
29 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
35 * TODO the types we are after are defined in diffrent headers on diffrent
36 * platforms find which headers to include to get uint32_t
39 #include <sys/ioctl.h>
42 #include "xf86drmMode.h"
49 #define U642VOID(x) ((void *)(unsigned long)(x))
50 #define VOID2U64(x) ((uint64_t)(unsigned long)(x))
56 void* drmAllocCpy(void *array, int count, int entry_size)
61 if (!count || !array || !entry_size)
64 if (!(r = drmMalloc(count*entry_size)))
67 for (i = 0; i < count; i++)
68 memcpy(r+(entry_size*i), array+(entry_size*i), entry_size);
74 * A couple of free functions.
77 void drmModeFreeModeInfo(struct drm_mode_modeinfo *ptr)
85 void drmModeFreeResources(drmModeResPtr ptr)
94 void drmModeFreeFB(drmModeFBPtr ptr)
99 /* we might add more frees later. */
103 void drmModeFreeCrtc(drmModeCrtcPtr ptr)
112 void drmModeFreeOutput(drmModeOutputPtr ptr)
122 void drmModeFreeEncoder(drmModeEncoderPtr ptr)
128 * ModeSetting functions.
131 drmModeResPtr drmModeGetResources(int fd)
133 struct drm_mode_card_res res;
136 memset(&res, 0, sizeof(struct drm_mode_card_res));
138 if (ioctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res))
142 res.fb_id_ptr = VOID2U64(drmMalloc(res.count_fbs*sizeof(uint32_t)));
144 res.crtc_id_ptr = VOID2U64(drmMalloc(res.count_crtcs*sizeof(uint32_t)));
145 if (res.count_outputs)
146 res.output_id_ptr = VOID2U64(drmMalloc(res.count_outputs*sizeof(uint32_t)));
147 if (res.count_encoders)
148 res.encoder_id_ptr = VOID2U64(drmMalloc(res.count_encoders*sizeof(uint32_t)));
150 if (ioctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) {
160 if (!(r = drmMalloc(sizeof(*r))))
163 r->min_width = res.min_width;
164 r->max_width = res.max_width;
165 r->min_height = res.min_height;
166 r->max_height = res.max_height;
167 r->count_fbs = res.count_fbs;
168 r->count_crtcs = res.count_crtcs;
169 r->count_outputs = res.count_outputs;
170 /* TODO we realy should test if these allocs fails. */
171 r->fbs = drmAllocCpy(U642VOID(res.fb_id_ptr), res.count_fbs, sizeof(uint32_t));
172 r->crtcs = drmAllocCpy(U642VOID(res.crtc_id_ptr), res.count_crtcs, sizeof(uint32_t));
173 r->outputs = drmAllocCpy(U642VOID(res.output_id_ptr), res.count_outputs, sizeof(uint32_t));
174 r->encoders = drmAllocCpy(U642VOID(res.encoder_id_ptr), res.count_encoders, sizeof(uint32_t));
177 drmFree(U642VOID(res.fb_id_ptr));
178 drmFree(U642VOID(res.crtc_id_ptr));
179 drmFree(U642VOID(res.output_id_ptr));
180 drmFree(U642VOID(res.encoder_id_ptr));
185 uint32_t drmModeGetHotplug(int fd)
187 struct drm_mode_hotplug arg;
190 ioctl(fd, DRM_IOCTL_MODE_HOTPLUG, &arg);
194 int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
195 uint8_t bpp, uint32_t pitch, uint32_t bo_handle,
198 struct drm_mode_fb_cmd f;
206 f.handle = bo_handle;
208 if ((ret = ioctl(fd, DRM_IOCTL_MODE_ADDFB, &f)))
211 *buf_id = f.buffer_id;
215 int drmModeRmFB(int fd, uint32_t bufferId)
217 return ioctl(fd, DRM_IOCTL_MODE_RMFB, &bufferId);
222 drmModeFBPtr drmModeGetFB(int fd, uint32_t buf)
224 struct drm_mode_fb_cmd info;
227 info.buffer_id = buf;
229 if (ioctl(fd, DRM_IOCTL_MODE_GETFB, &info))
232 if (!(r = drmMalloc(sizeof(*r))))
235 r->buffer_id = info.buffer_id;
236 r->width = info.width;
237 r->height = info.height;
238 r->pitch = info.pitch;
240 r->handle = info.handle;
241 r->depth = info.depth;
251 drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId)
253 struct drm_mode_crtc crtc;
256 crtc.count_outputs = 0;
258 crtc.count_possibles = 0;
260 crtc.crtc_id = crtcId;
262 if (ioctl(fd, DRM_IOCTL_MODE_GETCRTC, &crtc))
269 if (!(r = drmMalloc(sizeof(*r))))
272 r->crtc_id = crtc.crtc_id;
275 r->mode_valid = crtc.mode_valid;
277 memcpy(&r->mode, &crtc.mode, sizeof(struct drm_mode_modeinfo));
278 r->buffer_id = crtc.fb_id;
279 r->gamma_size = crtc.gamma_size;
280 r->count_outputs = crtc.count_outputs;
281 r->count_possibles = crtc.count_possibles;
282 /* TODO we realy should test if these alloc & cpy fails. */
283 r->outputs = crtc.outputs;
284 r->possibles = crtc.possibles;
290 int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
291 uint32_t x, uint32_t y, uint32_t *outputs, int count,
292 struct drm_mode_modeinfo *mode)
294 struct drm_mode_crtc crtc;
296 crtc.count_outputs = 0;
298 crtc.count_possibles = 0;
303 crtc.crtc_id = crtcId;
304 crtc.fb_id = bufferId;
305 crtc.set_outputs_ptr = VOID2U64(outputs);
306 crtc.count_outputs = count;
308 memcpy(&crtc.mode, mode, sizeof(struct drm_mode_modeinfo));
313 return ioctl(fd, DRM_IOCTL_MODE_SETCRTC, &crtc);
317 * Cursor manipulation
320 int drmModeSetCursor(int fd, uint32_t crtcId, uint32_t bo_handle, uint32_t width, uint32_t height)
322 struct drm_mode_cursor arg;
324 arg.flags = DRM_MODE_CURSOR_BO;
328 arg.handle = bo_handle;
330 return ioctl(fd, DRM_IOCTL_MODE_CURSOR, &arg);
333 int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y)
335 struct drm_mode_cursor arg;
337 arg.flags = DRM_MODE_CURSOR_MOVE;
342 return ioctl(fd, DRM_IOCTL_MODE_CURSOR, &arg);
348 drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id)
350 struct drm_mode_get_encoder enc;
351 drmModeEncoderPtr r = NULL;
353 enc.encoder_id = encoder_id;
354 enc.encoder_type = 0;
358 if (ioctl(fd, DRM_IOCTL_MODE_GETENCODER, &enc))
361 r->encoder_type = enc.encoder_type;
362 r->crtcs = enc.crtcs;
363 r->clones = enc.clones;
369 * Output manipulation
372 drmModeOutputPtr drmModeGetOutput(int fd, uint32_t output_id)
374 struct drm_mode_get_output out;
375 drmModeOutputPtr r = NULL;
377 out.output = output_id;
378 out.output_type_id = 0;
382 out.count_clones = 0;
388 out.prop_values_ptr = 0;
389 out.count_encoders = 0;
390 out.encoders_ptr = 0;
392 if (ioctl(fd, DRM_IOCTL_MODE_GETOUTPUT, &out))
395 if (out.count_props) {
396 out.props_ptr = VOID2U64(drmMalloc(out.count_props*sizeof(uint32_t)));
397 out.prop_values_ptr = VOID2U64(drmMalloc(out.count_props*sizeof(uint64_t)));
401 out.modes_ptr = VOID2U64(drmMalloc(out.count_modes*sizeof(struct drm_mode_modeinfo)));
403 if (out.count_encoders)
404 out.encoders_ptr = VOID2U64(drmMalloc(out.count_encoders*sizeof(uint32_t)));
406 if (ioctl(fd, DRM_IOCTL_MODE_GETOUTPUT, &out))
409 if(!(r = drmMalloc(sizeof(*r)))) {
413 r->output_id = out.output;
415 r->connection = out.connection;
416 r->mmWidth = out.mm_width;
417 r->mmHeight = out.mm_height;
418 r->subpixel = out.subpixel;
419 r->count_crtcs = out.count_crtcs;
420 r->count_clones = out.count_clones;
421 r->count_modes = out.count_modes;
422 /* TODO we should test if these alloc & cpy fails. */
423 r->crtcs = out.crtcs;
424 r->clones = out.clones;
425 r->count_props = out.count_props;
426 r->props = drmAllocCpy(U642VOID(out.props_ptr), out.count_props, sizeof(uint32_t));
427 r->prop_values = drmAllocCpy(U642VOID(out.prop_values_ptr), out.count_props, sizeof(uint64_t));
428 r->modes = drmAllocCpy(U642VOID(out.modes_ptr), out.count_modes, sizeof(struct drm_mode_modeinfo));
429 r->count_encoders = out.count_encoders;
430 r->encoders = drmAllocCpy(U642VOID(out.encoders_ptr), out.count_encoders, sizeof(uint32_t));
431 r->output_type = out.output_type;
432 r->output_type_id = out.output_type_id;
435 drmFree(U642VOID(out.prop_values_ptr));
436 drmFree(U642VOID(out.props_ptr));
437 drmFree(U642VOID(out.modes_ptr));
438 drmFree(U642VOID(out.encoders_ptr));
443 int drmModeAttachMode(int fd, uint32_t output_id, struct drm_mode_modeinfo *mode_info)
445 struct drm_mode_mode_cmd res;
447 memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo));
448 res.output_id = output_id;
450 return ioctl(fd, DRM_IOCTL_MODE_ATTACHMODE, &res);
453 int drmModeDetachMode(int fd, uint32_t output_id, struct drm_mode_modeinfo *mode_info)
455 struct drm_mode_mode_cmd res;
457 memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo));
458 res.output_id = output_id;
460 return ioctl(fd, DRM_IOCTL_MODE_DETACHMODE, &res);
464 drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id)
466 struct drm_mode_get_property prop;
467 drmModePropertyPtr r;
469 prop.prop_id = property_id;
470 prop.count_enum_blobs = 0;
471 prop.count_values = 0;
473 prop.enum_blob_ptr = 0;
476 if (ioctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop))
479 if (prop.count_values)
480 prop.values_ptr = VOID2U64(drmMalloc(prop.count_values * sizeof(uint64_t)));
482 if (prop.count_enum_blobs && (prop.flags & DRM_MODE_PROP_ENUM))
483 prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(struct drm_mode_property_enum)));
485 if (prop.count_enum_blobs && (prop.flags & DRM_MODE_PROP_BLOB)) {
486 prop.values_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t)));
487 prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t)));
490 if (ioctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop)) {
495 if (!(r = drmMalloc(sizeof(*r))))
498 r->prop_id = prop.prop_id;
499 r->count_values = prop.count_values;
501 r->flags = prop.flags;
502 if (prop.count_values)
503 r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_values, sizeof(uint64_t));
504 if (prop.flags & DRM_MODE_PROP_ENUM) {
505 r->count_enums = prop.count_enum_blobs;
506 r->enums = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(struct drm_mode_property_enum));
507 } else if (prop.flags & DRM_MODE_PROP_ENUM) {
508 r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_enum_blobs, sizeof(uint32_t));
509 r->blob_ids = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(uint32_t));
510 r->count_blobs = prop.count_enum_blobs;
512 strncpy(r->name, prop.name, DRM_PROP_NAME_LEN);
513 r->name[DRM_PROP_NAME_LEN-1] = 0;
516 drmFree(U642VOID(prop.values_ptr));
517 drmFree(U642VOID(prop.enum_blob_ptr));
522 void drmModeFreeProperty(drmModePropertyPtr ptr)
527 drmFree(ptr->values);
532 drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd, uint32_t blob_id)
534 struct drm_mode_get_blob blob;
535 drmModePropertyBlobPtr r;
539 blob.blob_id = blob_id;
541 if (ioctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob))
545 blob.data = VOID2U64(drmMalloc(blob.length));
547 if (ioctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob)) {
552 if (!(r = drmMalloc(sizeof(*r))))
555 r->id = blob.blob_id;
556 r->length = blob.length;
557 r->data = drmAllocCpy(U642VOID(blob.data), 1, blob.length);
560 drmFree(U642VOID(blob.data));
564 void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr)
573 int drmModeOutputSetProperty(int fd, uint32_t output_id, uint32_t property_id,
576 struct drm_mode_output_set_property osp;
579 osp.output_id = output_id;
580 osp.prop_id = property_id;
583 if ((ret = ioctl(fd, DRM_IOCTL_MODE_SETPROPERTY, &osp)))
590 * checks if a modesetting capable driver has attached to the pci id
591 * returns 0 if modesetting supported.
592 * -EINVAL or invalid bus id
593 * -ENOSYS if no modesetting support
595 int drmCheckModesettingSupported(const char *busid)
598 char pci_dev_dir[1024];
599 int domain, bus, dev, func;
604 ret = sscanf(busid, "pci:%04x:%02x:%02x.%d", &domain, &bus, &dev, &func);
608 sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/drm",
609 domain, bus, dev, func);
611 sysdir = opendir(pci_dev_dir);
613 dent = readdir(sysdir);
615 if (!strncmp(dent->d_name, "controlD", 8)) {
620 dent = readdir(sysdir);
627 sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/",
628 domain, bus, dev, func);
630 sysdir = opendir(pci_dev_dir);
634 dent = readdir(sysdir);
636 if (!strncmp(dent->d_name, "drm:controlD", 12)) {
641 dent = readdir(sysdir);
652 int drmModeReplaceFB(int fd, uint32_t buffer_id,
653 uint32_t width, uint32_t height, uint8_t depth,
654 uint8_t bpp, uint32_t pitch, uint32_t bo_handle)
656 struct drm_mode_fb_cmd f;
664 f.handle = bo_handle;
665 f.buffer_id = buffer_id;
667 if ((ret = ioctl(fd, DRM_IOCTL_MODE_REPLACEFB, &f)))