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 <assert.h>
  41 #include <stdio.h>
  42 #include <stdlib.h>
  43 #include <stdint.h>
  44 #include <unistd.h>
  45 #include <string.h>
  46 #include <errno.h>
  47
  48 #include "xf86drm.h"
  49 #include "xf86drmMode.h"
  50 #include "intel_bufmgr.h"
  51
  52 drmModeRes *resources;
  53 int fd, modes;
  54
  55 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
  56
  57 struct type_name {
  58         int type;
  59         char *name;
  60 };
  61
  62 #define type_name_fn(res) \
  63 char * res##_str(int type) {                    \
  64         int i;                                          \
  65         for (i = 0; i < ARRAY_SIZE(res##_names); i++) { \
  66                 if (res##_names[i].type == type)        \
  67                         return res##_names[i].name;     \
  68         }                                               \
  69         return "(invalid)";                             \
  70 }
  71
  72 struct type_name encoder_type_names[] = {
  73         { DRM_MODE_ENCODER_NONE, "none" },
  74         { DRM_MODE_ENCODER_DAC, "DAC" },
  75         { DRM_MODE_ENCODER_TMDS, "TMDS" },
  76         { DRM_MODE_ENCODER_LVDS, "LVDS" },
  77         { DRM_MODE_ENCODER_TVDAC, "TVDAC" },
  78 };
  79
  80 type_name_fn(encoder_type)
  81
  82 struct type_name connector_status_names[] = {
  83         { DRM_MODE_CONNECTED, "connected" },
  84         { DRM_MODE_DISCONNECTED, "disconnected" },
  85         { DRM_MODE_UNKNOWNCONNECTION, "unknown" },
  86 };
  87
  88 type_name_fn(connector_status)
  89
  90 struct type_name connector_type_names[] = {
  91         { DRM_MODE_CONNECTOR_Unknown, "unknown" },
  92         { DRM_MODE_CONNECTOR_VGA, "VGA" },
  93         { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
  94         { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
  95         { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
  96         { DRM_MODE_CONNECTOR_Composite, "composite" },
  97         { DRM_MODE_CONNECTOR_SVIDEO, "s-video" },
  98         { DRM_MODE_CONNECTOR_LVDS, "LVDS" },
  99         { DRM_MODE_CONNECTOR_Component, "component" },
 100         { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN" },
 101         { DRM_MODE_CONNECTOR_DisplayPort, "displayport" },
 102         { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
 103         { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
 104 };
 105
 106 type_name_fn(connector_type)
 107
 108 void dump_encoders(void)
 109 {
 110         drmModeEncoder *encoder;
 111         int i;
 112
 113         printf("Encoders:\n");
 114         printf("id\tcrtc\ttype\tpossible crtcs\tpossible clones\t\n");
 115         for (i = 0; i < resources->count_encoders; i++) {
 116                 encoder = drmModeGetEncoder(fd, resources->encoders[i]);
 117
 118                 if (!encoder) {
 119                         fprintf(stderr, "could not get encoder %i: %s\n",
 120                                 resources->encoders[i], strerror(errno));
 121                         continue;
 122                 }
 123                 printf("%d\t%d\t%s\t0x%08x\t0x%08x\n",
 124                        encoder->encoder_id,
 125                        encoder->crtc_id,
 126                        encoder_type_str(encoder->encoder_type),
 127                        encoder->possible_crtcs,
 128                        encoder->possible_clones);
 129                 drmModeFreeEncoder(encoder);
 130         }
 131         printf("\n");
 132 }
 133
 134 void dump_mode(struct drm_mode_modeinfo *mode)
 135 {
 136         printf("  %s %.02f %d %d %d %d %d %d %d %d\n",
 137                mode->name,
 138                (float)mode->vrefresh / 1000,
 139                mode->hdisplay,
 140                mode->hsync_start,
 141                mode->hsync_end,
 142                mode->htotal,
 143                mode->vdisplay,
 144                mode->vsync_start,
 145                mode->vsync_end,
 146                mode->vtotal);
 147 }
 148
 149 void dump_connectors(void)
 150 {
 151         drmModeConnector *connector;
 152         int i, j;
 153
 154         printf("Connectors:\n");
 155         printf("id\tencoder\tstatus\t\ttype\tsize (mm)\tmodes\n");
 156         for (i = 0; i < resources->count_connectors; i++) {
 157                 connector = drmModeGetConnector(fd, resources->connectors[i]);
 158
 159                 if (!connector) {
 160                         fprintf(stderr, "could not get connector %i: %s\n",
 161                                 resources->connectors[i], strerror(errno));
 162                         continue;
 163                 }
 164
 165                 printf("%d\t%d\t%s\t%s\t%dx%d\t\t%d\n",
 166                        connector->connector_id,
 167                        connector->encoder_id,
 168                        connector_status_str(connector->connection),
 169                        connector_type_str(connector->connector_type),
 170                        connector->mmWidth, connector->mmHeight,
 171                        connector->count_modes);
 172
 173                 if (!connector->count_modes)
 174                         continue;
 175
 176                 printf("  modes:\n");
 177                 printf("  name refresh (Hz) hdisp hss hse htot vdisp "
 178                        "vss vse vtot)\n");
 179                 for (j = 0; j < connector->count_modes; j++)
 180                         dump_mode(&connector->modes[j]);
 181
 182                 drmModeFreeConnector(connector);
 183         }
 184         printf("\n");
 185 }
 186
 187 void dump_crtcs(void)
 188 {
 189         drmModeCrtc *crtc;
 190         int i;
 191
 192         printf("CRTCs:\n");
 193         printf("id\tfb\tpos\tsize\n");
 194         for (i = 0; i < resources->count_crtcs; i++) {
 195                 crtc = drmModeGetCrtc(fd, resources->crtcs[i]);
 196
 197                 if (!crtc) {
 198                         fprintf(stderr, "could not get crtc %i: %s\n",
 199                                 resources->crtcs[i], strerror(errno));
 200                         continue;
 201                 }
 202                 printf("%d\t%d\t(%d,%d)\t(%dx%d)\n",
 203                        crtc->crtc_id,
 204                        crtc->buffer_id,
 205                        crtc->x, crtc->y,
 206                        crtc->width, crtc->height);
 207                 dump_mode(&crtc->mode);
 208
 209                 drmModeFreeCrtc(crtc);
 210         }
 211         printf("\n");
 212 }
 213
 214 void dump_framebuffers(void)
 215 {
 216         drmModeFB *fb;
 217         int i;
 218
 219         printf("Frame buffers:\n");
 220         printf("id\tsize\tpitch\n");
 221         for (i = 0; i < resources->count_fbs; i++) {
 222                 fb = drmModeGetFB(fd, resources->fbs[i]);
 223
 224                 if (!fb) {
 225                         fprintf(stderr, "could not get fb %i: %s\n",
 226                                 resources->fbs[i], strerror(errno));
 227                         continue;
 228                 }
 229                 printf("%d\t(%dx%d)\t%d\n",
 230                        fb->fb_id,
 231                        fb->width, fb->height);
 232
 233                 drmModeFreeFB(fb);
 234         }
 235         printf("\n");
 236 }
 237
 238 /*
 239  * Mode setting with the kernel interfaces is a bit of a chore.
 240  * First you have to find the connector in question and make sure the
 241  * requested mode is available.
 242  * Then you need to find the encoder attached to that connector so you
 243  * can bind it with a free crtc.
 244  */
 245 struct connector {
 246         int id;
 247         char mode_str[64];
 248         struct drm_mode_modeinfo *mode;
 249         drmModeEncoder *encoder;
 250 };
 251
 252 static void
 253 connector_find_mode(struct connector *c)
 254 {
 255         drmModeConnector *connector;
 256         int i, j, size, ret, width, height;
 257
 258         /* First, find the connector & mode */
 259         c->mode = NULL;
 260         for (i = 0; i < resources->count_connectors; i++) {
 261                 connector = drmModeGetConnector(fd, resources->connectors[i]);
 262
 263                 if (!connector) {
 264                         fprintf(stderr, "could not get connector %i: %s\n",
 265                                 resources->connectors[i], strerror(errno));
 266                         drmModeFreeConnector(connector);
 267                         continue;
 268                 }
 269
 270                 if (!connector->count_modes) {
 271                         drmModeFreeConnector(connector);
 272                         continue;
 273                 }
 274
 275                 if (connector->connector_id != c->id) {
 276                         drmModeFreeConnector(connector);
 277                         continue;
 278                 }
 279
 280                 for (j = 0; j < connector->count_modes; j++) {
 281                         c->mode = &connector->modes[j];
 282                         if (!strcmp(c->mode->name, c->mode_str))
 283                                 break;
 284                 }
 285
 286                 /* Found it, break out */
 287                 if (c->mode)
 288                         break;
 289
 290                 drmModeFreeConnector(connector);
 291         }
 292
 293         if (!c->mode) {
 294                 fprintf(stderr, "failed to find mode \"%s\"\n", c->mode_str);
 295                 return;
 296         }
 297
 298         /* Now get the encoder */
 299         for (i = 0; i < resources->count_encoders; i++) {
 300                 c->encoder = drmModeGetEncoder(fd, resources->encoders[i]);
 301
 302                 if (!c->encoder) {
 303                         fprintf(stderr, "could not get encoder %i: %s\n",
 304                                 resources->encoders[i], strerror(errno));
 305                         drmModeFreeEncoder(c->encoder);
 306                         continue;
 307                 }
 308
 309                 if (c->encoder->encoder_id  == connector->encoder_id)
 310                         break;
 311
 312                 drmModeFreeEncoder(c->encoder);
 313         }
 314 }
 315
 316 static void
 317 set_mode(struct connector *c, int count)
 318 {
 319         drmModeConnector *connector;
 320         drmModeEncoder *encoder = NULL;
 321         struct drm_mode_modeinfo *mode = NULL;
 322         drm_intel_bufmgr *bufmgr;
 323         drm_intel_bo *bo;
 324         unsigned int fb_id, *fb_ptr;
 325         int i, j, size, ret, width, height, x;
 326         div_t d;
 327
 328         width = 0;
 329         height = 0;
 330         for (i = 0; i < count; i++) {
 331                 connector_find_mode(&c[i]);
 332                 if (c[i].mode == NULL)
 333                         continue;
 334                 width += c[i].mode->hdisplay;
 335                 if (height < c[i].mode->vdisplay)
 336                         height = c[i].mode->vdisplay;
 337         }
 338
 339         bufmgr = drm_intel_bufmgr_gem_init(fd, 2<<20);
 340         if (!bufmgr) {
 341                 fprintf(stderr, "failed to init bufmgr: %s\n", strerror(errno));
 342                 return;
 343         }
 344
 345         /* Mode size at 32 bpp */
 346         size = width * height * 4;
 347
 348         bo = drm_intel_bo_alloc(bufmgr, "frontbuffer", size, 4096);
 349         if (!bo) {
 350                 fprintf(stderr, "failed to alloc buffer: %s\n",
 351                         strerror(errno));
 352                 return;
 353         }
 354
 355         ret = drm_intel_gem_bo_map_gtt(bo);
 356         if (ret) {
 357                 fprintf(stderr, "failed to GTT map buffer: %s\n",
 358                         strerror(errno));
 359                 return;
 360         }
 361
 362         fb_ptr = bo->virtual;
 363
 364         /* paint the buffer with colored tiles */
 365         for (i = 0; i < width * height; i++) {
 366                 d = div(i, width);
 367                 fb_ptr[i] = 0x00130502 * (d.quot >> 6) + 0x000a1120 * (d.rem >> 6);
 368         }
 369
 370         ret = drmModeAddFB(fd, width, height, 32, 32, width * 4, bo->handle,
 371                            &fb_id);
 372         if (ret) {
 373                 fprintf(stderr, "failed to add fb: %s\n", strerror(errno));
 374                 return;
 375         }
 376
 377         x = 0;
 378         for (i = 0; i < count; i++) {
 379                 if (c[i].mode == NULL)
 380                         continue;
 381                 ret = drmModeSetCrtc(fd, c[i].encoder->crtc_id, fb_id, x, 0,
 382                                      &c[i].id, 1, c[i].mode);
 383                 x += c[i].mode->hdisplay;
 384
 385                 if (ret) {
 386                         fprintf(stderr, "failed to set mode: %s\n", strerror(errno));
 387                         return;
 388                 }
 389         }
 390 }
 391
 392 extern char *optarg;
 393 extern int optind, opterr, optopt;
 394 static char optstr[] = "ecpmfs:";
 395
 396 void usage(char *name)
 397 {
 398         fprintf(stderr, "usage: %s [-ecpmf]\n", name);
 399         fprintf(stderr, "\t-e\tlist encoders\n");
 400         fprintf(stderr, "\t-c\tlist connectors\n");
 401         fprintf(stderr, "\t-p\tlist CRTCs (pipes)\n");
 402         fprintf(stderr, "\t-m\tlist modes\n");
 403         fprintf(stderr, "\t-f\tlist framebuffers\n");
 404         fprintf(stderr, "\t-s <connector_id>:<mode>\tset a mode\n");
 405         fprintf(stderr, "\n\tDefault is to dump all info.\n");
 406         exit(0);
 407 }
 408
 409 #define dump_resource(res) if (res) dump_##res()
 410
 411 int main(int argc, char **argv)
 412 {
 413         int c;
 414         int encoders = 0, connectors = 0, crtcs = 0, framebuffers = 0;
 415         char *modules[] = { "i915", "radeon" };
 416         char *modeset = NULL, *mode, *connector;
 417         int i, connector_id, count = 0;
 418         struct connector con_args[2];
 419
 420         opterr = 0;
 421         while ((c = getopt(argc, argv, optstr)) != -1) {
 422                 switch (c) {
 423                 case 'e':
 424                         encoders = 1;
 425                         break;
 426                 case 'c':
 427                         connectors = 1;
 428                         break;
 429                 case 'p':
 430                         crtcs = 1;
 431                         break;
 432                 case 'm':
 433                         modes = 1;
 434                         break;
 435                 case 'f':
 436                         framebuffers = 1;
 437                         break;
 438                 case 's':
 439                         modeset = strdup(optarg);
 440                         if (sscanf(optarg, "%d:%64s",
 441                                    &con_args[count].id,
 442                                    &con_args[count].mode_str) != 2)
 443                                 usage(argv[0]);
 444                         printf("setting mode %s on connector %d\n",
 445                                con_args[count].mode_str,
 446                                con_args[count].id);
 447                         count++;
 448                         break;
 449                 default:
 450                         usage(argv[0]);
 451                         break;
 452                 }
 453         }
 454
 455         if (argc == 1)
 456                 encoders = connectors = crtcs = modes = framebuffers = 1;
 457
 458         for (i = 0; i < ARRAY_SIZE(modules); i++) {
 459                 printf("trying to load module %s...", modules[i]);
 460                 fd = drmOpen(modules[i], NULL);
 461                 if (fd < 0) {
 462                         printf("failed.\n");
 463                 } else {
 464                         printf("success.\n");
 465                         break;
 466                 }
 467         }
 468
 469         if (i == ARRAY_SIZE(modules)) {
 470                 fprintf(stderr, "failed to load any modules, aborting.\n");
 471                 return -1;
 472         }
 473
 474         resources = drmModeGetResources(fd);
 475         if (!resources) {
 476                 fprintf(stderr, "drmModeGetResources failed: %s\n",
 477                         strerror(errno));
 478                 drmClose(fd);
 479                 return 1;
 480         }
 481
 482         dump_resource(encoders);
 483         dump_resource(connectors);
 484         dump_resource(crtcs);
 485         dump_resource(framebuffers);
 486
 487         if (count > 0) {
 488                 set_mode(con_args, count);
 489                 getchar();
 490         }
 491
 492         drmModeFreeResources(resources);
 493
 494         return 0;
 495 }