tests/modetest/modetest.c

   1 /*
   2  * DRM based mode setting test program
   3  * Copyright 2008 Tungsten Graphics
   4  *   Jakob Bornecrantz <jakob@tungstengraphics.com>
   5  * Copyright 2008 Intel Corporation
   6  *   Jesse Barnes <jesse.barnes@intel.com>
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  24  * IN THE SOFTWARE.
  25  */
  26
  27 /*
  28  * This fairly simple test program dumps output in a similar format to the
  29  * "xrandr" tool everyone knows & loves.  It's necessarily slightly different
  30  * since the kernel separates outputs into encoder and connector structures,
  31  * each with their own unique ID.  The program also allows test testing of the
  32  * memory management and mode setting APIs by allowing the user to specify a
  33  * connector and mode to use for mode setting.  If all works as expected, a
  34  * blue background should be painted on the monitor attached to the specified
  35  * connector after the selected mode is set.
  36  *
  37  * TODO: use cairo to write the mode info on the selected output once
  38  *       the mode has been programmed, along with possible test patterns.
  39  */
  40 #include "config.h"
  41
  42 #include <assert.h>
  43 #include <stdio.h>
  44 #include <stdlib.h>
  45 #include <stdint.h>
  46 #include <unistd.h>
  47 #include <string.h>
  48 #include <errno.h>
  49 #include <sys/poll.h>
  50 #include <sys/time.h>
  51
  52 #include "xf86drm.h"
  53 #include "xf86drmMode.h"
  54 #include "intel_bufmgr.h"
  55 #include "i915_drm.h"
  56
  57 #ifdef HAVE_CAIRO
  58 #include <math.h>
  59 #include <cairo.h>
  60 #endif
  61
  62 drmModeRes *resources;
  63 int fd, modes;
  64
  65 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
  66
  67 struct type_name {
  68         int type;
  69         char *name;
  70 };
  71
  72 #define type_name_fn(res) \
  73 char * res##_str(int type) {                    \
  74         int i;                                          \
  75         for (i = 0; i < ARRAY_SIZE(res##_names); i++) { \
  76                 if (res##_names[i].type == type)        \
  77                         return res##_names[i].name;     \
  78         }                                               \
  79         return "(invalid)";                             \
  80 }
  81
  82 struct type_name encoder_type_names[] = {
  83         { DRM_MODE_ENCODER_NONE, "none" },
  84         { DRM_MODE_ENCODER_DAC, "DAC" },
  85         { DRM_MODE_ENCODER_TMDS, "TMDS" },
  86         { DRM_MODE_ENCODER_LVDS, "LVDS" },
  87         { DRM_MODE_ENCODER_TVDAC, "TVDAC" },
  88 };
  89
  90 type_name_fn(encoder_type)
  91
  92 struct type_name connector_status_names[] = {
  93         { DRM_MODE_CONNECTED, "connected" },
  94         { DRM_MODE_DISCONNECTED, "disconnected" },
  95         { DRM_MODE_UNKNOWNCONNECTION, "unknown" },
  96 };
  97
  98 type_name_fn(connector_status)
  99
 100 struct type_name connector_type_names[] = {
 101         { DRM_MODE_CONNECTOR_Unknown, "unknown" },
 102         { DRM_MODE_CONNECTOR_VGA, "VGA" },
 103         { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
 104         { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
 105         { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
 106         { DRM_MODE_CONNECTOR_Composite, "composite" },
 107         { DRM_MODE_CONNECTOR_SVIDEO, "s-video" },
 108         { DRM_MODE_CONNECTOR_LVDS, "LVDS" },
 109         { DRM_MODE_CONNECTOR_Component, "component" },
 110         { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN" },
 111         { DRM_MODE_CONNECTOR_DisplayPort, "displayport" },
 112         { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
 113         { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
 114 };
 115
 116 type_name_fn(connector_type)
 117
 118 void dump_encoders(void)
 119 {
 120         drmModeEncoder *encoder;
 121         int i;
 122
 123         printf("Encoders:\n");
 124         printf("id\tcrtc\ttype\tpossible crtcs\tpossible clones\t\n");
 125         for (i = 0; i < resources->count_encoders; i++) {
 126                 encoder = drmModeGetEncoder(fd, resources->encoders[i]);
 127
 128                 if (!encoder) {
 129                         fprintf(stderr, "could not get encoder %i: %s\n",
 130                                 resources->encoders[i], strerror(errno));
 131                         continue;
 132                 }
 133                 printf("%d\t%d\t%s\t0x%08x\t0x%08x\n",
 134                        encoder->encoder_id,
 135                        encoder->crtc_id,
 136                        encoder_type_str(encoder->encoder_type),
 137                        encoder->possible_crtcs,
 138                        encoder->possible_clones);
 139                 drmModeFreeEncoder(encoder);
 140         }
 141         printf("\n");
 142 }
 143
 144 void dump_mode(drmModeModeInfo *mode)
 145 {
 146         printf("  %s %.02f %d %d %d %d %d %d %d %d\n",
 147                mode->name,
 148                (float)mode->vrefresh / 1000,
 149                mode->hdisplay,
 150                mode->hsync_start,
 151                mode->hsync_end,
 152                mode->htotal,
 153                mode->vdisplay,
 154                mode->vsync_start,
 155                mode->vsync_end,
 156                mode->vtotal);
 157 }
 158
 159 static void
 160 dump_props(drmModeConnector *connector)
 161 {
 162         drmModePropertyPtr props;
 163         int i;
 164
 165         for (i = 0; i < connector->count_props; i++) {
 166                 props = drmModeGetProperty(fd, connector->props[i]);
 167                 printf("\t%s, flags %d\n", props->name, props->flags);
 168                 drmModeFreeProperty(props);
 169         }
 170 }
 171
 172 void dump_connectors(void)
 173 {
 174         drmModeConnector *connector;
 175         int i, j;
 176
 177         printf("Connectors:\n");
 178         printf("id\tencoder\tstatus\t\ttype\tsize (mm)\tmodes\tencoders\n");
 179         for (i = 0; i < resources->count_connectors; i++) {
 180                 connector = drmModeGetConnector(fd, resources->connectors[i]);
 181
 182                 if (!connector) {
 183                         fprintf(stderr, "could not get connector %i: %s\n",
 184                                 resources->connectors[i], strerror(errno));
 185                         continue;
 186                 }
 187
 188                 printf("%d\t%d\t%s\t%s\t%dx%d\t\t%d\t",
 189                        connector->connector_id,
 190                        connector->encoder_id,
 191                        connector_status_str(connector->connection),
 192                        connector_type_str(connector->connector_type),
 193                        connector->mmWidth, connector->mmHeight,
 194                        connector->count_modes);
 195
 196                 for (j = 0; j < connector->count_encoders; j++)
 197                         printf("%s%d", j > 0 ? ", " : "", connector->encoders[j]);
 198                 printf("\n");
 199
 200                 if (!connector->count_modes)
 201                         continue;
 202
 203                 printf("  modes:\n");
 204                 printf("  name refresh (Hz) hdisp hss hse htot vdisp "
 205                        "vss vse vtot)\n");
 206                 for (j = 0; j < connector->count_modes; j++)
 207                         dump_mode(&connector->modes[j]);
 208
 209                 drmModeFreeConnector(connector);
 210
 211                 printf("  props:\n");
 212                 dump_props(connector);
 213         }
 214         printf("\n");
 215 }
 216
 217 void dump_crtcs(void)
 218 {
 219         drmModeCrtc *crtc;
 220         int i;
 221
 222         printf("CRTCs:\n");
 223         printf("id\tfb\tpos\tsize\n");
 224         for (i = 0; i < resources->count_crtcs; i++) {
 225                 crtc = drmModeGetCrtc(fd, resources->crtcs[i]);
 226
 227                 if (!crtc) {
 228                         fprintf(stderr, "could not get crtc %i: %s\n",
 229                                 resources->crtcs[i], strerror(errno));
 230                         continue;
 231                 }
 232                 printf("%d\t%d\t(%d,%d)\t(%dx%d)\n",
 233                        crtc->crtc_id,
 234                        crtc->buffer_id,
 235                        crtc->x, crtc->y,
 236                        crtc->width, crtc->height);
 237                 dump_mode(&crtc->mode);
 238
 239                 drmModeFreeCrtc(crtc);
 240         }
 241         printf("\n");
 242 }
 243
 244 void dump_framebuffers(void)
 245 {
 246         drmModeFB *fb;
 247         int i;
 248
 249         printf("Frame buffers:\n");
 250         printf("id\tsize\tpitch\n");
 251         for (i = 0; i < resources->count_fbs; i++) {
 252                 fb = drmModeGetFB(fd, resources->fbs[i]);
 253
 254                 if (!fb) {
 255                         fprintf(stderr, "could not get fb %i: %s\n",
 256                                 resources->fbs[i], strerror(errno));
 257                         continue;
 258                 }
 259                 printf("%u\t(%ux%u)\t%u\n",
 260                        fb->fb_id,
 261                        fb->width, fb->height,
 262                        fb->pitch);
 263
 264                 drmModeFreeFB(fb);
 265         }
 266         printf("\n");
 267 }
 268
 269 /*
 270  * Mode setting with the kernel interfaces is a bit of a chore.
 271  * First you have to find the connector in question and make sure the
 272  * requested mode is available.
 273  * Then you need to find the encoder attached to that connector so you
 274  * can bind it with a free crtc.
 275  */
 276 struct connector {
 277         uint32_t id;
 278         char mode_str[64];
 279         drmModeModeInfo *mode;
 280         drmModeEncoder *encoder;
 281         int crtc;
 282         unsigned int fb_id[2], current_fb_id;
 283         struct timeval start;
 284
 285         int swap_count;
 286 };
 287
 288 static void
 289 connector_find_mode(struct connector *c)
 290 {
 291         drmModeConnector *connector;
 292         int i, j;
 293
 294         /* First, find the connector & mode */
 295         c->mode = NULL;
 296         for (i = 0; i < resources->count_connectors; i++) {
 297                 connector = drmModeGetConnector(fd, resources->connectors[i]);
 298
 299                 if (!connector) {
 300                         fprintf(stderr, "could not get connector %i: %s\n",
 301                                 resources->connectors[i], strerror(errno));
 302                         drmModeFreeConnector(connector);
 303                         continue;
 304                 }
 305
 306                 if (!connector->count_modes) {
 307                         drmModeFreeConnector(connector);
 308                         continue;
 309                 }
 310
 311                 if (connector->connector_id != c->id) {
 312                         drmModeFreeConnector(connector);
 313                         continue;
 314                 }
 315
 316                 for (j = 0; j < connector->count_modes; j++) {
 317                         c->mode = &connector->modes[j];
 318                         if (!strcmp(c->mode->name, c->mode_str))
 319                                 break;
 320                 }
 321
 322                 /* Found it, break out */
 323                 if (c->mode)
 324                         break;
 325
 326                 drmModeFreeConnector(connector);
 327         }
 328
 329         if (!c->mode) {
 330                 fprintf(stderr, "failed to find mode \"%s\"\n", c->mode_str);
 331                 return;
 332         }
 333
 334         /* Now get the encoder */
 335         for (i = 0; i < resources->count_encoders; i++) {
 336                 c->encoder = drmModeGetEncoder(fd, resources->encoders[i]);
 337
 338                 if (!c->encoder) {
 339                         fprintf(stderr, "could not get encoder %i: %s\n",
 340                                 resources->encoders[i], strerror(errno));
 341                         drmModeFreeEncoder(c->encoder);
 342                         continue;
 343                 }
 344
 345                 if (c->encoder->encoder_id  == connector->encoder_id)
 346                         break;
 347
 348                 drmModeFreeEncoder(c->encoder);
 349         }
 350
 351         if (c->crtc == -1)
 352                 c->crtc = c->encoder->crtc_id;
 353 }
 354
 355 #ifdef HAVE_CAIRO
 356
 357 static int
 358 create_test_buffer(drm_intel_bufmgr *bufmgr,
 359                    int width, int height, int *stride_out, drm_intel_bo **bo_out)
 360 {
 361         drm_intel_bo *bo;
 362         unsigned int *fb_ptr;
 363         int size, i, stride;
 364         div_t d;
 365         cairo_surface_t *surface;
 366         cairo_t *cr;
 367         char buf[64];
 368         int x, y;
 369
 370         surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
 371         stride = cairo_image_surface_get_stride(surface);
 372         size = stride * height;
 373         fb_ptr = (unsigned int *) cairo_image_surface_get_data(surface);
 374
 375         /* paint the buffer with colored tiles */
 376         for (i = 0; i < width * height; i++) {
 377                 d = div(i, width);
 378                 fb_ptr[i] = 0x00130502 * (d.quot >> 6) + 0x000a1120 * (d.rem >> 6);
 379         }
 380
 381         cr = cairo_create(surface);
 382         cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE);
 383         for (x = 0; x < width; x += 250)
 384                 for (y = 0; y < height; y += 250) {
 385                         cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
 386                         cairo_move_to(cr, x, y - 20);
 387                         cairo_line_to(cr, x, y + 20);
 388                         cairo_move_to(cr, x - 20, y);
 389                         cairo_line_to(cr, x + 20, y);
 390                         cairo_new_sub_path(cr);
 391                         cairo_arc(cr, x, y, 10, 0, M_PI * 2);
 392                         cairo_set_line_width(cr, 4);
 393                         cairo_set_source_rgb(cr, 0, 0, 0);
 394                         cairo_stroke_preserve(cr);
 395                         cairo_set_source_rgb(cr, 1, 1, 1);
 396                         cairo_set_line_width(cr, 2);
 397                         cairo_stroke(cr);
 398                         snprintf(buf, sizeof buf, "%d, %d", x, y);
 399                         cairo_move_to(cr, x + 20, y + 20);
 400                         cairo_text_path(cr, buf);
 401                         cairo_set_source_rgb(cr, 0, 0, 0);
 402                         cairo_stroke_preserve(cr);
 403                         cairo_set_source_rgb(cr, 1, 1, 1);
 404                         cairo_fill(cr);
 405                 }
 406
 407         cairo_destroy(cr);
 408
 409         bo = drm_intel_bo_alloc(bufmgr, "frontbuffer", size, 4096);
 410         if (!bo) {
 411                 fprintf(stderr, "failed to alloc buffer: %s\n",
 412                         strerror(errno));
 413                 return -1;
 414         }
 415
 416         drm_intel_bo_subdata(bo, 0, size, fb_ptr);
 417
 418         cairo_surface_destroy(surface);
 419
 420         *bo_out = bo;
 421         *stride_out = stride;
 422
 423         return 0;
 424 }
 425
 426 #else
 427
 428 static int
 429 create_test_buffer(drm_intel_bufmgr *bufmgr,
 430                    int width, int height, int *stride_out, drm_intel_bo **bo_out)
 431 {
 432         drm_intel_bo *bo;
 433         unsigned int *fb_ptr;
 434         int size, ret, i, stride;
 435         div_t d;
 436
 437         /* Mode size at 32 bpp */
 438         stride = width * 4;
 439         size = stride * height;
 440
 441         bo = drm_intel_bo_alloc(bufmgr, "frontbuffer", size, 4096);
 442         if (!bo) {
 443                 fprintf(stderr, "failed to alloc buffer: %s\n",
 444                         strerror(errno));
 445                 return -1;
 446         }
 447
 448         ret = drm_intel_gem_bo_map_gtt(bo);
 449         if (ret) {
 450                 fprintf(stderr, "failed to GTT map buffer: %s\n",
 451                         strerror(errno));
 452                 return -1;
 453         }
 454
 455         fb_ptr = bo->virtual;
 456
 457         /* paint the buffer with colored tiles */
 458         for (i = 0; i < width * height; i++) {
 459                 d = div(i, width);
 460                 fb_ptr[i] = 0x00130502 * (d.quot >> 6) + 0x000a1120 * (d.rem >> 6);
 461         }
 462         drm_intel_gem_bo_unmap_gtt(bo);
 463
 464         *bo_out = bo;
 465         *stride_out = stride;
 466
 467         return 0;
 468 }
 469
 470 #endif
 471
 472 static int
 473 create_grey_buffer(drm_intel_bufmgr *bufmgr,
 474                    int width, int height, int *stride_out, drm_intel_bo **bo_out)
 475 {
 476         drm_intel_bo *bo;
 477         int size, ret, stride;
 478
 479         /* Mode size at 32 bpp */
 480         stride = width * 4;
 481         size = stride * height;
 482
 483         bo = drm_intel_bo_alloc(bufmgr, "frontbuffer", size, 4096);
 484         if (!bo) {
 485                 fprintf(stderr, "failed to alloc buffer: %s\n",
 486                         strerror(errno));
 487                 return -1;
 488         }
 489
 490         ret = drm_intel_gem_bo_map_gtt(bo);
 491         if (ret) {
 492                 fprintf(stderr, "failed to GTT map buffer: %s\n",
 493                         strerror(errno));
 494                 return -1;
 495         }
 496
 497         memset(bo->virtual, 0x77, size);
 498         drm_intel_gem_bo_unmap_gtt(bo);
 499
 500         *bo_out = bo;
 501         *stride_out = stride;
 502
 503         return 0;
 504 }
 505
 506 void
 507 page_flip_handler(int fd, unsigned int frame,
 508                   unsigned int sec, unsigned int usec, void *data)
 509 {
 510         struct connector *c;
 511         unsigned int new_fb_id;
 512         struct timeval end;
 513         double t;
 514
 515         c = data;
 516         if (c->current_fb_id == c->fb_id[0])
 517                 new_fb_id = c->fb_id[1];
 518         else
 519                 new_fb_id = c->fb_id[0];
 520
 521         drmModePageFlip(fd, c->crtc, new_fb_id,
 522                         DRM_MODE_PAGE_FLIP_EVENT, c);
 523         c->current_fb_id = new_fb_id;
 524         c->swap_count++;
 525         if (c->swap_count == 60) {
 526                 gettimeofday(&end, NULL);
 527                 t = end.tv_sec + end.tv_usec * 1e-6 -
 528                         (c->start.tv_sec + c->start.tv_usec * 1e-6);
 529                 fprintf(stderr, "freq: %.02fHz\n", c->swap_count / t);
 530                 c->swap_count = 0;
 531                 c->start = end;
 532         }
 533 }
 534
 535 static void
 536 set_mode(struct connector *c, int count, int page_flip)
 537 {
 538         drm_intel_bufmgr *bufmgr;
 539         drm_intel_bo *bo, *other_bo;
 540         unsigned int fb_id, other_fb_id;
 541         int i, ret, width, height, x, stride;
 542         drmEventContext evctx;
 543
 544         width = 0;
 545         height = 0;
 546         for (i = 0; i < count; i++) {
 547                 connector_find_mode(&c[i]);
 548                 if (c[i].mode == NULL)
 549                         continue;
 550                 width += c[i].mode->hdisplay;
 551                 if (height < c[i].mode->vdisplay)
 552                         height = c[i].mode->vdisplay;
 553         }
 554
 555         bufmgr = drm_intel_bufmgr_gem_init(fd, 2<<20);
 556         if (!bufmgr) {
 557                 fprintf(stderr, "failed to init bufmgr: %s\n", strerror(errno));
 558                 return;
 559         }
 560
 561         if (create_test_buffer(bufmgr, width, height, &stride, &bo))
 562                 return;
 563
 564         ret = drmModeAddFB(fd, width, height, 32, 32, stride, bo->handle,
 565                            &fb_id);
 566         if (ret) {
 567                 fprintf(stderr, "failed to add fb: %s\n", strerror(errno));
 568                 return;
 569         }
 570
 571         x = 0;
 572         for (i = 0; i < count; i++) {
 573                 if (c[i].mode == NULL)
 574                         continue;
 575
 576                 printf("setting mode %s on connector %d, crtc %d\n",
 577                        c[i].mode_str, c[i].id, c[i].crtc);
 578
 579                 ret = drmModeSetCrtc(fd, c[i].crtc, fb_id, x, 0,
 580                                      &c[i].id, 1, c[i].mode);
 581                 x += c[i].mode->hdisplay;
 582
 583                 if (ret) {
 584                         fprintf(stderr, "failed to set mode: %s\n", strerror(errno));
 585                         return;
 586                 }
 587         }
 588
 589         if (!page_flip)
 590                 return;
 591
 592         if (create_grey_buffer(bufmgr, width, height, &stride, &other_bo))
 593                 return;
 594
 595         ret = drmModeAddFB(fd, width, height, 32, 32, stride, other_bo->handle,
 596                            &other_fb_id);
 597         if (ret) {
 598                 fprintf(stderr, "failed to add fb: %s\n", strerror(errno));
 599                 return;
 600         }
 601
 602         for (i = 0; i < count; i++) {
 603                 if (c[i].mode == NULL)
 604                         continue;
 605
 606                 drmModePageFlip(fd, c[i].crtc, other_fb_id,
 607                                 DRM_MODE_PAGE_FLIP_EVENT, &c[i]);
 608                 gettimeofday(&c[i].start, NULL);
 609                 c[i].swap_count = 0;
 610                 c[i].fb_id[0] = fb_id;
 611                 c[i].fb_id[1] = other_fb_id;
 612                 c[i].current_fb_id = fb_id;
 613         }
 614
 615         memset(&evctx, 0, sizeof evctx);
 616         evctx.version = DRM_EVENT_CONTEXT_VERSION;
 617         evctx.vblank_handler = NULL;
 618         evctx.page_flip_handler = page_flip_handler;
 619
 620         while (1) {
 621                 struct pollfd pfd[2];
 622
 623                 pfd[0].fd = 0;
 624                 pfd[0].events = POLLIN;
 625                 pfd[1].fd = fd;
 626                 pfd[1].events = POLLIN;
 627
 628                 if (poll(pfd, 2, -1) < 0) {
 629                         fprintf(stderr, "poll error\n");
 630                         break;
 631                 }
 632
 633                 if (pfd[0].revents)
 634                         break;
 635
 636                 drmHandleEvent(fd, &evctx);
 637         }
 638 }
 639
 640 extern char *optarg;
 641 extern int optind, opterr, optopt;
 642 static char optstr[] = "ecpmfs:v";
 643
 644 void usage(char *name)
 645 {
 646         fprintf(stderr, "usage: %s [-ecpmf]\n", name);
 647         fprintf(stderr, "\t-e\tlist encoders\n");
 648         fprintf(stderr, "\t-c\tlist connectors\n");
 649         fprintf(stderr, "\t-p\tlist CRTCs (pipes)\n");
 650         fprintf(stderr, "\t-m\tlist modes\n");
 651         fprintf(stderr, "\t-f\tlist framebuffers\n");
 652         fprintf(stderr, "\t-v\ttest vsynced page flipping\n");
 653         fprintf(stderr, "\t-s <connector_id>:<mode>\tset a mode\n");
 654         fprintf(stderr, "\t-s <connector_id>@<crtc_id>:<mode>\tset a mode\n");
 655         fprintf(stderr, "\n\tDefault is to dump all info.\n");
 656         exit(0);
 657 }
 658
 659 #define dump_resource(res) if (res) dump_##res()
 660
 661 static int page_flipping_supported(int fd)
 662 {
 663         int ret, value;
 664         struct drm_i915_getparam gp;
 665
 666         gp.param = I915_PARAM_HAS_PAGEFLIPPING;
 667         gp.value = &value;
 668
 669         ret = drmCommandWriteRead(fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
 670         if (ret) {
 671                 fprintf(stderr, "drm_i915_getparam: %m\n");
 672                 return 0;
 673         }
 674
 675         return *gp.value;
 676 }
 677
 678 int main(int argc, char **argv)
 679 {
 680         int c;
 681         int encoders = 0, connectors = 0, crtcs = 0, framebuffers = 0;
 682         int test_vsync = 0;
 683         char *modules[] = { "i915", "radeon" };
 684         char *modeset = NULL;
 685         int i, count = 0;
 686         struct connector con_args[2];
 687
 688         opterr = 0;
 689         while ((c = getopt(argc, argv, optstr)) != -1) {
 690                 switch (c) {
 691                 case 'e':
 692                         encoders = 1;
 693                         break;
 694                 case 'c':
 695                         connectors = 1;
 696                         break;
 697                 case 'p':
 698                         crtcs = 1;
 699                         break;
 700                 case 'm':
 701                         modes = 1;
 702                         break;
 703                 case 'f':
 704                         framebuffers = 1;
 705                         break;
 706                 case 'v':
 707                         test_vsync = 1;
 708                         break;
 709                 case 's':
 710                         modeset = strdup(optarg);
 711                         con_args[count].crtc = -1;
 712                         if (sscanf(optarg, "%d:%64s",
 713                                    &con_args[count].id,
 714                                    con_args[count].mode_str) != 2 &&
 715                             sscanf(optarg, "%d@%d:%64s",
 716                                    &con_args[count].id,
 717                                    &con_args[count].crtc,
 718                                    con_args[count].mode_str) != 3)
 719                                 usage(argv[0]);
 720                         count++;
 721                         break;
 722                 default:
 723                         usage(argv[0]);
 724                         break;
 725                 }
 726         }
 727
 728         if (argc == 1)
 729                 encoders = connectors = crtcs = modes = framebuffers = 1;
 730
 731         for (i = 0; i < ARRAY_SIZE(modules); i++) {
 732                 printf("trying to load module %s...", modules[i]);
 733                 fd = drmOpen(modules[i], NULL);
 734                 if (fd < 0) {
 735                         printf("failed.\n");
 736                 } else {
 737                         printf("success.\n");
 738                         break;
 739                 }
 740         }
 741
 742         if (test_vsync && !page_flipping_supported(fd)) {
 743                 fprintf(stderr, "page flipping not supported by drm.\n");
 744                 return -1;
 745         }
 746
 747         if (i == ARRAY_SIZE(modules)) {
 748                 fprintf(stderr, "failed to load any modules, aborting.\n");
 749                 return -1;
 750         }
 751
 752         resources = drmModeGetResources(fd);
 753         if (!resources) {
 754                 fprintf(stderr, "drmModeGetResources failed: %s\n",
 755                         strerror(errno));
 756                 drmClose(fd);
 757                 return 1;
 758         }
 759
 760         dump_resource(encoders);
 761         dump_resource(connectors);
 762         dump_resource(crtcs);
 763         dump_resource(framebuffers);
 764
 765         if (count > 0) {
 766                 set_mode(con_args, count, test_vsync);
 767                 getchar();
 768         }
 769
 770         drmModeFreeResources(resources);
 771
 772         return 0;
 773 }