src/tdm.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <sc1.lim@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm.h"
  41 #include "tdm_backend.h"
  42 #include "tdm_private.h"
  43 #include "tdm_helper.h"
  44 #include <tbm_drm_helper.h>
  45
  46 pthread_mutex_t tdm_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  47 int tdm_mutex_locked;
  48 const char *tdm_mutex_lock_func;
  49 int tdm_mutex_lock_line;
  50 const char *tdm_mutex_unlock_func;
  51 int tdm_mutex_unlock_line;
  52
  53 static tdm_private_layer *
  54 _tdm_display_find_private_layer(tdm_private_output *private_output,
  55                                                                 tdm_layer *layer_backend)
  56 {
  57         tdm_private_layer *private_layer = NULL;
  58
  59         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  60                 if (private_layer->layer_backend == layer_backend)
  61                         return private_layer;
  62         }
  63
  64         return NULL;
  65 }
  66
  67 static tdm_private_output *
  68 _tdm_display_find_private_output(tdm_private_display *private_display,
  69                                                                  tdm_output *output_backend)
  70 {
  71         tdm_private_output *private_output = NULL;
  72
  73         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
  74                 if (private_output->output_backend == output_backend)
  75                         return private_output;
  76         }
  77
  78         return NULL;
  79 }
  80
  81 INTERN tdm_private_output *
  82 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
  83 {
  84         tdm_private_output *private_output = NULL;
  85
  86         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
  87                 if (private_output->stamp == stamp)
  88                         return private_output;
  89         }
  90
  91         return NULL;
  92 }
  93
  94 static void
  95 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
  96 {
  97         if (caps_pp->formats)
  98                 free(caps_pp->formats);
  99
 100         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 101 }
 102
 103 static void
 104 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 105 {
 106         if (caps_capture->formats)
 107                 free(caps_capture->formats);
 108
 109         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 110 }
 111
 112 static void
 113 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 114 {
 115         if (caps_layer->formats)
 116                 free(caps_layer->formats);
 117
 118         if (caps_layer->props)
 119                 free(caps_layer->props);
 120
 121         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 122 }
 123
 124 static void
 125 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 126 {
 127         if (caps_output->modes)
 128                 free(caps_output->modes);
 129
 130         if (caps_output->props)
 131                 free(caps_output->props);
 132
 133         memset(caps_output, 0, sizeof(tdm_caps_output));
 134 }
 135
 136 static void
 137 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 138 {
 139         tdm_private_capture *c = NULL, *cc = NULL;
 140
 141         LIST_DEL(&private_layer->link);
 142
 143         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 144         tdm_capture_destroy_internal(c);
 145
 146         _tdm_display_destroy_caps_layer(&private_layer->caps);
 147
 148         free(private_layer);
 149 }
 150
 151 static void
 152 _tdm_display_destroy_private_output(tdm_private_output *private_output)
 153 {
 154         tdm_private_display *private_display = private_output->private_display;
 155         tdm_private_layer *l = NULL, *ll = NULL;
 156         tdm_private_hwc_window *hw = NULL, *hww = NULL;
 157         tdm_private_capture *c = NULL, *cc = NULL;
 158         tdm_private_vblank_handler *v = NULL, *vv = NULL;
 159         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 160         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 161         tdm_private_change_handler *h = NULL, *hh = NULL;
 162
 163         LIST_DEL(&private_output->link);
 164
 165         free(private_output->layers_ptr);
 166
 167         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 168                 LIST_DEL(&v->link);
 169                 free(v);
 170         }
 171
 172         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 173                 LIST_DEL(&om->link);
 174                 free(om);
 175         }
 176
 177         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 178                 LIST_DEL(&lm->link);
 179                 free(lm);
 180         }
 181
 182         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 183                 LIST_DEL(&lm->link);
 184                 free(lm);
 185         }
 186
 187         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_main, link) {
 188                 LIST_DEL(&h->link);
 189                 free(h);
 190         }
 191
 192         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_sub, link) {
 193                 LIST_DEL(&h->link);
 194                 free(h);
 195         }
 196
 197         if (private_output->vblank) {
 198                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 199                 _pthread_mutex_unlock(&private_display->lock);
 200                 tdm_vblank_destroy(private_output->vblank);
 201                 _pthread_mutex_lock(&private_display->lock);
 202         }
 203
 204         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 205         tdm_capture_destroy_internal(c);
 206
 207         LIST_FOR_EACH_ENTRY_SAFE(hw, hww, &private_output->hwc_window_list, link)
 208         tdm_hwc_window_destroy_internal(hw);
 209
 210         LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 211         _tdm_display_destroy_private_layer(l);
 212
 213         _tdm_display_destroy_caps_output(&private_output->caps);
 214
 215         if (private_output->dpms_changed_timer)
 216                 tdm_event_loop_source_remove(private_output->dpms_changed_timer);
 217
 218         private_output->stamp = 0;
 219         free(private_output);
 220 }
 221
 222 static void
 223 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 224 {
 225         tdm_private_output *o = NULL, *oo = NULL;
 226         tdm_private_pp *p = NULL, *pp = NULL;
 227
 228         free(private_display->outputs_ptr);
 229         if (private_display->outputs) {
 230                 free(private_display->outputs);
 231                 private_display->outputs = NULL;
 232         }
 233
 234         LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_display->pp_list, link)
 235         tdm_pp_destroy_internal(p);
 236
 237         LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_display->output_list, link)
 238         _tdm_display_destroy_private_output(o);
 239
 240         _tdm_display_destroy_caps_pp(&private_display->caps_pp);
 241         _tdm_display_destroy_caps_capture(&private_display->caps_capture);
 242
 243         private_display->capabilities = 0;
 244         private_display->caps_display.max_layer_count = 0;
 245 }
 246
 247 static tdm_error
 248 _tdm_display_update_caps_pp(tdm_private_display *private_display,
 249                                                         tdm_caps_pp *caps)
 250 {
 251         tdm_func_display *func_display = &private_display->func_display;
 252         tdm_error ret;
 253
 254         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP))
 255                 return TDM_ERROR_NONE;
 256
 257         if (!func_display->display_get_pp_capability) {
 258                 TDM_ERR("no display_get_pp_capability()");
 259                 return TDM_ERROR_BAD_MODULE;
 260         }
 261
 262         ret = func_display->display_get_pp_capability(private_display->bdata, caps);
 263         if (ret != TDM_ERROR_NONE) {
 264                 TDM_ERR("display_get_pp_capability() failed");
 265                 return TDM_ERROR_BAD_MODULE;
 266         }
 267
 268         return TDM_ERROR_NONE;
 269 }
 270
 271 static tdm_error
 272 _tdm_display_update_caps_capture(tdm_private_display *private_display,
 273                                                                  tdm_caps_capture *caps)
 274 {
 275         tdm_func_display *func_display = &private_display->func_display;
 276         tdm_error ret;
 277
 278         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE))
 279                 return TDM_ERROR_NONE;
 280
 281         if (!func_display->display_get_capture_capability) {
 282                 TDM_ERR("no display_get_capture_capability()");
 283                 return TDM_ERROR_BAD_MODULE;
 284         }
 285
 286         ret = func_display->display_get_capture_capability(private_display->bdata, caps);
 287         if (ret != TDM_ERROR_NONE) {
 288                 TDM_ERR("display_get_capture_capability() failed");
 289                 return TDM_ERROR_BAD_MODULE;
 290         }
 291
 292         return TDM_ERROR_NONE;
 293 }
 294
 295 static tdm_error
 296 _tdm_display_update_caps_layer(tdm_private_display *private_display,
 297                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 298 {
 299         tdm_func_layer *func_layer = &private_display->func_layer;
 300         tdm_error ret;
 301
 302         if (!func_layer->layer_get_capability) {
 303                 TDM_ERR("no layer_get_capability()");
 304                 return TDM_ERROR_BAD_MODULE;
 305         }
 306
 307         ret = func_layer->layer_get_capability(layer_backend, caps);
 308         if (ret != TDM_ERROR_NONE) {
 309                 TDM_ERR("layer_get_capability() failed");
 310                 return TDM_ERROR_BAD_MODULE;
 311         }
 312
 313         return TDM_ERROR_NONE;
 314 }
 315
 316 static tdm_error
 317 _tdm_display_update_caps_output(tdm_private_display *private_display, int pipe,
 318                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 319 {
 320         tdm_func_output *func_output = &private_display->func_output;
 321         char temp[TDM_NAME_LEN];
 322         tdm_error ret;
 323         double stamp;
 324
 325         if (!func_output->output_get_capability) {
 326                 TDM_ERR("no output_get_capability()");
 327                 return TDM_ERROR_BAD_MODULE;
 328         }
 329
 330         stamp = tdm_helper_get_time();
 331         ret = func_output->output_get_capability(output_backend, caps);
 332         TDM_DBG("backend output_get_capability() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 333
 334         if (ret != TDM_ERROR_NONE) {
 335                 TDM_ERR("output_get_capability() failed");
 336                 return TDM_ERROR_BAD_MODULE;
 337         }
 338
 339         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 340         snprintf(temp, TDM_NAME_LEN, "%s-%d", caps->model, pipe);
 341         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 342
 343         return TDM_ERROR_NONE;
 344 }
 345
 346 static tdm_error
 347 _tdm_display_update_layer(tdm_private_display *private_display,
 348                                                   tdm_private_output *private_output,
 349                                                   tdm_layer *layer_backend, int index)
 350 {
 351         tdm_private_layer *private_layer;
 352         tdm_error ret;
 353
 354         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 355         if (!private_layer) {
 356                 private_layer = calloc(1, sizeof(tdm_private_layer));
 357                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 358
 359                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 360                 private_layer->index = index;
 361                 private_layer->private_display = private_display;
 362                 private_layer->private_output = private_output;
 363                 private_layer->layer_backend = layer_backend;
 364
 365                 LIST_INITHEAD(&private_layer->capture_list);
 366
 367                 private_layer->usable = 1;
 368         } else
 369                 _tdm_display_destroy_caps_layer(&private_layer->caps);
 370
 371         ret = _tdm_display_update_caps_layer(private_display, layer_backend,
 372                                                                                  &private_layer->caps);
 373         if (ret != TDM_ERROR_NONE)
 374                 goto failed_update;
 375
 376         return TDM_ERROR_NONE;
 377 failed_update:
 378         _tdm_display_destroy_private_layer(private_layer);
 379         return ret;
 380 }
 381
 382 INTERN tdm_error
 383 tdm_display_update_output(tdm_private_display *private_display,
 384                                                   tdm_output *output_backend, int pipe)
 385 {
 386         tdm_func_output *func_output = &private_display->func_output;
 387         tdm_private_output *private_output = NULL;
 388         tdm_layer **layers = NULL;
 389         int layer_count = 0, i;
 390         tdm_error ret;
 391
 392         private_output = _tdm_display_find_private_output(private_display, output_backend);
 393         if (!private_output) {
 394                 private_output = calloc(1, sizeof(tdm_private_output));
 395                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 396
 397                 private_output->stamp = tdm_helper_get_time();
 398                 while (tdm_display_find_output_stamp(private_display, private_output->stamp))
 399                         private_output->stamp++;
 400
 401                 LIST_ADDTAIL(&private_output->link, &private_display->output_list);
 402
 403                 private_output->private_display = private_display;
 404                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 405                 private_output->output_backend = output_backend;
 406                 private_output->pipe = pipe;
 407                 private_output->index = pipe;
 408
 409                 LIST_INITHEAD(&private_output->layer_list);
 410                 LIST_INITHEAD(&private_output->hwc_window_list);
 411                 LIST_INITHEAD(&private_output->capture_list);
 412                 LIST_INITHEAD(&private_output->vblank_handler_list);
 413                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 414                 LIST_INITHEAD(&private_output->layer_commit_handler_list);
 415                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 416                 LIST_INITHEAD(&private_output->change_handler_list_main);
 417                 LIST_INITHEAD(&private_output->change_handler_list_sub);
 418
 419                 if (func_output->output_set_status_handler) {
 420                         func_output->output_set_status_handler(private_output->output_backend,
 421                                                                                                    tdm_output_cb_status,
 422                                                                                                    private_output);
 423                         private_output->regist_change_cb = 1;
 424                 }
 425
 426                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 427                                                                                           &private_output->caps);
 428                 if (ret != TDM_ERROR_NONE)
 429                         return ret;
 430         } else {
 431                 tdm_caps_output new_caps;
 432
 433                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 434                                                                                           &new_caps);
 435                 if (ret != TDM_ERROR_NONE)
 436                         return ret;
 437
 438                 /* FIXME: This is very ugly. need to fix after the TDM ABI is changed. */
 439                 if (private_output->caps.status != new_caps.status) {
 440                         _tdm_display_destroy_caps_output(&private_output->caps);
 441                         private_output->caps = new_caps;
 442                         private_output->current_mode = NULL;
 443                 } else {
 444                         tdm_output_mode *old_modes = private_output->caps.modes;
 445                         unsigned int old_mode_count = private_output->caps.mode_count;
 446                         if (new_caps.modes)
 447                                 free(new_caps.modes);
 448                         new_caps.modes = old_modes;
 449                         new_caps.mode_count = old_mode_count;
 450                         if (private_output->caps.props)
 451                                 free(private_output->caps.props);
 452                         private_output->caps = new_caps;
 453                 }
 454         }
 455
 456         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 457         if (ret != TDM_ERROR_NONE)
 458                 goto failed_update;
 459
 460         for (i = 0; i < layer_count; i++) {
 461                 ret = _tdm_display_update_layer(private_display, private_output, layers[i], i);
 462                 if (ret != TDM_ERROR_NONE)
 463                         goto failed_update;
 464         }
 465
 466         free(layers);
 467
 468         return TDM_ERROR_NONE;
 469 failed_update:
 470         _tdm_display_destroy_private_output(private_output);
 471         free(layers);
 472         return ret;
 473 }
 474
 475 static tdm_output **
 476 _tdm_display_set_main_first(tdm_output **outputs, int index)
 477 {
 478         tdm_output *output_tmp = NULL;
 479
 480         if (index == 0)
 481                 return outputs;
 482
 483         output_tmp = outputs[0];
 484         outputs[0] = outputs[index];
 485         outputs[index] = output_tmp;
 486
 487         return outputs;
 488 }
 489
 490 static tdm_output **
 491 _tdm_display_get_ordered_outputs(tdm_private_display *private_display, int *count)
 492 {
 493         tdm_func_display *func_display = &private_display->func_display;
 494         tdm_output **outputs = NULL;
 495         tdm_output **new_outputs = NULL;
 496         tdm_output *output_dsi = NULL;
 497         tdm_output *output_lvds = NULL;
 498         tdm_output *output_hdmia = NULL;
 499         tdm_output *output_hdmib = NULL;
 500         int i, output_count = 0, output_connected_count = 0;
 501         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 502         tdm_error ret;
 503
 504         /* don't change list order if not init time */
 505         if (private_display->outputs)
 506                 return private_display->outputs;
 507
 508         outputs = func_display->display_get_outputs(private_display->bdata, &output_count, &ret);
 509         if (ret != TDM_ERROR_NONE)
 510                 goto failed_get_outputs;
 511
 512         *count = output_count;
 513
 514         if (output_count == 0)
 515                 goto failed_get_outputs;
 516         else if (output_count == 1) {
 517                 private_display->outputs = outputs;
 518                 return outputs;
 519         }
 520
 521         /* count connected outputs */
 522         for (i = 0; i < output_count; i++) {
 523                 tdm_func_output *func_output = &private_display->func_output;
 524                 tdm_caps_output caps;
 525                 memset(&caps, 0, sizeof(tdm_caps_output));
 526
 527                 if (!func_output->output_get_capability) {
 528                         TDM_ERR("no output_get_capability()");
 529                         goto failed_get_outputs;
 530                 }
 531
 532                 ret = func_output->output_get_capability(outputs[i], &caps);
 533                 if (ret != TDM_ERROR_NONE) {
 534                         TDM_ERR("output_get_capability() failed");
 535                         goto failed_get_outputs;
 536                 }
 537
 538                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 539                         output_connected_count++;
 540
 541                         switch (caps.type) {
 542                         case TDM_OUTPUT_TYPE_DSI:
 543                                 output_dsi = outputs[i];
 544                                 index_dsi = i;
 545                                 break;
 546                         case TDM_OUTPUT_TYPE_LVDS:
 547                                 output_lvds = outputs[i];
 548                                 index_lvds = i;
 549                                 break;
 550                         case TDM_OUTPUT_TYPE_HDMIA:
 551                                 output_hdmia = outputs[i];
 552                                 index_hdmia = i;
 553                                 break;
 554                         case TDM_OUTPUT_TYPE_HDMIB:
 555                                 output_hdmib = outputs[i];
 556                                 index_hdmib = i;
 557                                 break;
 558                         default:
 559                                 break;
 560                         }
 561                 }
 562
 563                 _tdm_display_destroy_caps_output(&caps);
 564         }
 565
 566         /* ordering : main output is first */
 567         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 568           * But hdmi is possible, so set hdmi to main display.
 569           * If connected only one output, it is main output.
 570           * If connected outputs over 2, has priority like below.
 571           * (dsi > lvds > hdmi > else)
 572           */
 573         if (output_connected_count == 0) {
 574                 /* hdmi > dsi > lvds > else */
 575                 if (output_hdmia != NULL)
 576                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 577                 else if (output_hdmib != NULL)
 578                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 579                 else if (output_dsi != NULL)
 580                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 581                 else if (output_lvds != NULL)
 582                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 583                 else
 584                         new_outputs = outputs;
 585         } else { /* (output_connected_count > 1) */
 586                 /* dsi > lvds > hdmi > else */
 587                 if (output_dsi != NULL)
 588                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 589                 else if (output_lvds != NULL)
 590                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 591                 else if (output_hdmia != NULL)
 592                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 593                 else if (output_hdmib != NULL)
 594                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 595                 else
 596                         new_outputs = outputs;
 597         }
 598
 599         private_display->outputs = new_outputs;
 600
 601         return new_outputs;
 602
 603 failed_get_outputs:
 604         free(outputs);
 605         *count = 0;
 606         return NULL;
 607 }
 608
 609 static tdm_error
 610 _tdm_display_update_internal(tdm_private_display *private_display,
 611                                                          int only_display)
 612 {
 613         tdm_output **outputs = NULL;
 614         int output_count = 0, i;
 615         tdm_error ret = TDM_ERROR_NONE;
 616
 617         LIST_INITHEAD(&private_display->output_list);
 618         LIST_INITHEAD(&private_display->pp_list);
 619         LIST_INITHEAD(&private_display->capture_list);
 620
 621         if (!only_display) {
 622                 ret = _tdm_display_update_caps_pp(private_display, &private_display->caps_pp);
 623                 if (ret != TDM_ERROR_NONE)
 624                         goto failed_update;
 625
 626                 ret = _tdm_display_update_caps_capture(private_display,
 627                                                                                            &private_display->caps_capture);
 628                 if (ret != TDM_ERROR_NONE)
 629                         goto failed_update;
 630         }
 631
 632         outputs = _tdm_display_get_ordered_outputs(private_display, &output_count);
 633         if (!outputs)
 634                 goto failed_update;
 635
 636         for (i = 0; i < output_count; i++) {
 637                 ret = tdm_display_update_output(private_display, outputs[i], i);
 638                 if (ret != TDM_ERROR_NONE)
 639                         goto failed_update;
 640         }
 641
 642         return TDM_ERROR_NONE;
 643
 644 failed_update:
 645         _tdm_display_destroy_private_display(private_display);
 646         return ret;
 647 }
 648
 649 EXTERN tdm_error
 650 tdm_display_update(tdm_display *dpy)
 651 {
 652         tdm_private_display *private_display;
 653         tdm_error ret;
 654
 655         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 656
 657         private_display = dpy;
 658         _pthread_mutex_lock(&private_display->lock);
 659
 660         ret = _tdm_display_update_internal(private_display, 1);
 661
 662         _pthread_mutex_unlock(&private_display->lock);
 663
 664         return ret;
 665 }
 666
 667 #define SUFFIX_MODULE    ".so"
 668 #define TDM_DEFAULT_MODULE   "libtdm-default"SUFFIX_MODULE
 669 #define TDM_DUMMY_MODULE     "libtdm-dummy"SUFFIX_MODULE
 670
 671 int tdm_debug_module;
 672 int tdm_debug_dump;
 673
 674 static tdm_private_display *g_private_display;
 675 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 676
 677 static tdm_error
 678 _tdm_display_check_module(tdm_backend_module *module)
 679 {
 680         int major, minor;
 681
 682         TDM_INFO("TDM ABI version : %d.%d",
 683                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 684
 685         if (!module->name) {
 686                 TDM_ERR("TDM backend doesn't have name");
 687                 return TDM_ERROR_BAD_MODULE;
 688         }
 689
 690         if (!module->vendor) {
 691                 TDM_ERR("TDM backend doesn't have vendor");
 692                 return TDM_ERROR_BAD_MODULE;
 693         }
 694
 695         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 696         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 697
 698         TDM_INFO("TDM module name: %s", module->name);
 699         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 700         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 701
 702         if (major != TDM_MAJOR_VERSION) {
 703                 TDM_ERR("'%s' major version mismatch, %d != %d",
 704                                 module->name, major, TDM_MAJOR_VERSION);
 705                 return TDM_ERROR_BAD_MODULE;
 706         }
 707
 708         if (minor > TDM_MINOR_VERSION) {
 709                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 710                                 module->name, minor, TDM_MINOR_VERSION);
 711                 return TDM_ERROR_BAD_MODULE;
 712         }
 713
 714         if (!module->init) {
 715                 TDM_ERR("'%s' doesn't have init function", module->name);
 716                 return TDM_ERROR_BAD_MODULE;
 717         }
 718
 719         if (!module->deinit) {
 720                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 721                 return TDM_ERROR_BAD_MODULE;
 722         }
 723
 724         return TDM_ERROR_NONE;
 725 }
 726
 727 static tdm_error
 728 _tdm_display_check_backend_functions(tdm_private_display *private_display)
 729 {
 730         tdm_func_display *func_display = &private_display->func_display;
 731         tdm_func_output *func_output = &private_display->func_output;
 732         tdm_func_layer *func_layer = &private_display->func_layer;
 733         tdm_error ret;
 734
 735         /* below functions should be implemented in backend side */
 736
 737         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 738         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 739         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 740         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 741         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 742
 743         ret = func_display->display_get_capability(private_display->bdata, &private_display->caps_display);
 744         if (ret != TDM_ERROR_NONE) {
 745                 TDM_ERR("display_get_capability() failed");
 746                 return TDM_ERROR_BAD_MODULE;
 747         }
 748
 749         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 750                 tdm_func_pp *func_pp = &private_display->func_pp;
 751                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 752                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 753                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 754                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 755                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 756         }
 757
 758         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 759                 tdm_func_capture *func_capture = &private_display->func_capture;
 760                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 761                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 762                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 763                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 764                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 765                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 766                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 767                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 768         }
 769
 770         return TDM_ERROR_NONE;
 771 }
 772
 773 static tdm_error
 774 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 775                                                                    const char *file)
 776 {
 777         char path[PATH_MAX] = {0,};
 778         tdm_backend_module *module_data;
 779         void *module;
 780         tdm_error ret;
 781         double stamp;
 782         int size;
 783
 784         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 785         if (size >= (int)sizeof(path)) {
 786                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 787                 return TDM_ERROR_BAD_MODULE;
 788         };
 789
 790         stamp = tdm_helper_get_time();
 791
 792         TDM_TRACE_BEGIN("TDM_Load_Backend");
 793         module = dlopen(path, RTLD_LAZY);
 794         if (!module) {
 795                 TDM_ERR("failed to load module: %s(%s)", dlerror(), file);
 796                 TDM_TRACE_END();
 797                 return TDM_ERROR_BAD_MODULE;
 798         }
 799
 800         module_data = dlsym(module, "tdm_backend_module_data");
 801         if (!module_data) {
 802                 TDM_ERR("'%s' doesn't have data object", file);
 803                 ret = TDM_ERROR_BAD_MODULE;
 804                 TDM_TRACE_END();
 805                 goto failed_load;
 806         }
 807         TDM_TRACE_END();
 808
 809         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 810
 811         private_display->module_data = module_data;
 812         private_display->module = module;
 813
 814         /* check if version, init() and deinit() are valid or not */
 815         ret = _tdm_display_check_module(module_data);
 816         if (ret != TDM_ERROR_NONE)
 817                 goto failed_load;
 818
 819         /* We don't care if backend_data is NULL or not. It's up to backend. */
 820         TDM_TRACE_BEGIN("TDM_Init_Backend");
 821         stamp = tdm_helper_get_time();
 822         private_display->bdata = module_data->init((tdm_display *)private_display, &ret);
 823         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 824         TDM_TRACE_END();
 825
 826         if (ret != TDM_ERROR_NONE) {
 827                 TDM_ERR("failed to init '%s' module", module_data->name);
 828                 goto failed_load;
 829         }
 830
 831         ret = _tdm_display_check_backend_functions(private_display);
 832         if (ret != TDM_ERROR_NONE) {
 833                 module_data->deinit(private_display->bdata);
 834                 private_display->bdata = NULL;
 835                 goto failed_load;
 836         }
 837
 838         TDM_INFO("Success to load '%s' module", module_data->name);
 839
 840         return TDM_ERROR_NONE;
 841 failed_load:
 842         dlclose(module);
 843         private_display->module_data = NULL;
 844         private_display->module = NULL;
 845         return ret;
 846 }
 847
 848 static tdm_error
 849 _tdm_display_load_module(tdm_private_display *private_display)
 850 {
 851         const char *module_name;
 852         char module[TDM_NAME_LEN];
 853         struct dirent **namelist;
 854         int n;
 855         tdm_error ret = 0;
 856
 857         module_name = getenv("TDM_MODULE");
 858         if (!module_name)
 859                 module_name = TDM_DEFAULT_MODULE;
 860
 861         strncpy(module, module_name, TDM_NAME_LEN - 1);
 862         module[TDM_NAME_LEN - 1] = '\0';
 863
 864         /* load bufmgr priv from default lib */
 865         ret = _tdm_display_load_module_with_file(private_display, (const char*)module);
 866         if (ret == TDM_ERROR_NONE)
 867                 return TDM_ERROR_NONE;
 868
 869         /* load bufmgr priv from dummy lib */
 870         ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 871         if (ret == TDM_ERROR_NONE)
 872                 return TDM_ERROR_NONE;
 873
 874         /* load bufmgr priv from configured path */
 875         n = scandir(TDM_MODULE_PATH, &namelist, 0, alphasort);
 876         if (n < 0) {
 877                 TDM_ERR("no module in '%s'\n", TDM_MODULE_PATH);
 878                 return TDM_ERROR_BAD_MODULE;
 879         }
 880
 881         ret = TDM_ERROR_BAD_MODULE;
 882         while (n--) {
 883                 if (ret < 0 && strstr(namelist[n]->d_name, SUFFIX_MODULE))
 884                         ret = _tdm_display_load_module_with_file(private_display, namelist[n]->d_name);
 885
 886                 free(namelist[n]);
 887         }
 888         free(namelist);
 889
 890         return ret;
 891 }
 892
 893 static void
 894 _tdm_display_unload_module(tdm_private_display *private_display)
 895 {
 896         if (private_display->module_data)
 897                 private_display->module_data->deinit(private_display->bdata);
 898         if (private_display->module)
 899                 dlclose(private_display->module);
 900
 901         private_display->bdata = NULL;
 902         private_display->module_data = NULL;
 903         private_display->module = NULL;
 904 }
 905
 906 EXTERN tdm_display *
 907 tdm_display_init(tdm_error *error)
 908 {
 909         tdm_private_display *private_display = NULL;
 910         const char *str;
 911         tdm_error ret;
 912         double stamp1, stamp2, start;
 913
 914         pthread_mutex_lock(&gLock);
 915
 916         if (g_private_display) {
 917                 g_private_display->init_count++;
 918                 pthread_mutex_unlock(&gLock);
 919                 if (error)
 920                         *error = TDM_ERROR_NONE;
 921                 return g_private_display;
 922         }
 923
 924         start = stamp1 = tdm_helper_get_time();
 925
 926         private_display = calloc(1, sizeof(tdm_private_display));
 927         if (!private_display) {
 928                 ret = TDM_ERROR_OUT_OF_MEMORY;
 929                 TDM_ERR("'private_display != NULL' failed");
 930                 goto failed_alloc;
 931         }
 932
 933         str = getenv("TDM_DEBUG_MODULE");
 934         if (str)
 935                 tdm_display_enable_debug_module(str);
 936
 937         str = getenv("TDM_DEBUG_DUMP");
 938         if (str)
 939                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 940
 941         str = getenv("TDM_DEBUG_PATH");
 942         if (str)
 943                 tdm_display_enable_path(str);
 944
 945         if (pthread_mutex_init(&private_display->lock, NULL)) {
 946                 ret = TDM_ERROR_OPERATION_FAILED;
 947                 TDM_ERR("mutex init failed: %m");
 948                 goto failed_mutex_init;
 949         }
 950
 951         _pthread_mutex_lock(&private_display->lock);
 952
 953         stamp2 = tdm_helper_get_time();
 954         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 955         stamp1 = stamp2;
 956
 957         ret = tdm_event_loop_init(private_display);
 958         if (ret != TDM_ERROR_NONE)
 959                 goto failed_event;
 960
 961         stamp2 = tdm_helper_get_time();
 962         TDM_DBG("creating event loop time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 963         stamp1 = stamp2;
 964
 965         ret = _tdm_display_load_module(private_display);
 966         if (ret != TDM_ERROR_NONE)
 967                 goto failed_load;
 968
 969         stamp2 = tdm_helper_get_time();
 970         TDM_DBG("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 971         stamp1 = stamp2;
 972
 973 #ifdef INIT_BUFMGR
 974         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
 975         if (tdm_drm_fd >= 0) {
 976                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
 977                 close(tdm_drm_fd);
 978                 if (!private_display->bufmgr) {
 979                         TDM_ERR("tbm_bufmgr_init failed");
 980                         goto failed_update;
 981                 } else {
 982                         TDM_INFO("tbm_bufmgr_init successed");
 983                 }
 984
 985                 stamp2 = tdm_helper_get_time();
 986                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 987                 stamp1 = stamp2;
 988         }
 989 #endif
 990
 991         TDM_TRACE_BEGIN("TDM_Update_Display");
 992         ret = _tdm_display_update_internal(private_display, 0);
 993         TDM_TRACE_END();
 994         if (ret != TDM_ERROR_NONE)
 995                 goto failed_update;
 996
 997         stamp2 = tdm_helper_get_time();
 998         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 999         stamp1 = stamp2;
1000
1001         tdm_event_loop_create_backend_source(private_display);
1002
1003         private_display->init_count = 1;
1004
1005         tdm_private_output *o = NULL;
1006         LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1007                 if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1008                         tdm_output_need_validate_event_init(o);
1009         }
1010
1011         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1012          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1013          * this functionality can be turned off which means a default mode */
1014         str = getenv("TDM_COMMIT_PER_VBLANK");
1015         if (str) {
1016                 tdm_private_output *o = NULL;
1017                 char *end;
1018                 int mode = strtol(str, &end, 10);
1019
1020                 /* outputs which support hwc capability can work only
1021                  * if commit_per_vblank mode is '0' (default mode) */
1022                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link)
1023                         if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1024                                 tdm_output_choose_commit_per_vblank_mode(o, mode);
1025         }
1026
1027         g_private_display = private_display;
1028
1029         if (error)
1030                 *error = TDM_ERROR_NONE;
1031
1032         _pthread_mutex_unlock(&private_display->lock);
1033         pthread_mutex_unlock(&gLock);
1034
1035         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1036
1037         return (tdm_display *)private_display;
1038
1039 failed_update:
1040         _tdm_display_unload_module(private_display);
1041 failed_load:
1042         tdm_event_loop_stop(private_display);
1043         tdm_event_loop_deinit(private_display);
1044 failed_event:
1045         _pthread_mutex_unlock(&private_display->lock);
1046         pthread_mutex_destroy(&private_display->lock);
1047 failed_mutex_init:
1048         free(private_display);
1049 failed_alloc:
1050         if (error)
1051                 *error = ret;
1052         pthread_mutex_unlock(&gLock);
1053         return NULL;
1054 }
1055
1056 EXTERN void
1057 tdm_display_deinit(tdm_display *dpy)
1058 {
1059         tdm_private_display *private_display = dpy;
1060
1061         if (!private_display)
1062                 return;
1063
1064         pthread_mutex_lock(&gLock);
1065
1066         private_display->init_count--;
1067         if (private_display->init_count > 0) {
1068                 pthread_mutex_unlock(&gLock);
1069                 return;
1070         }
1071
1072         /* dont move the position of lock/unlock. all resource should be protected
1073          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1074          * things because it's finalized.
1075          */
1076         _pthread_mutex_lock(&private_display->lock);
1077         tdm_event_loop_stop(private_display);
1078         _tdm_display_destroy_private_display(private_display);
1079         _tdm_display_unload_module(private_display);
1080         _pthread_mutex_unlock(&private_display->lock);
1081
1082         tdm_event_loop_deinit(private_display);
1083
1084 #ifdef INIT_BUFMGR
1085         if (private_display->bufmgr)
1086                 tbm_bufmgr_deinit(private_display->bufmgr);
1087 #endif
1088
1089         tbm_drm_helper_unset_tbm_master_fd();
1090
1091         pthread_mutex_destroy(&private_display->lock);
1092         free(private_display);
1093         g_private_display = NULL;
1094
1095         if (tdm_debug_dump_dir) {
1096                 free(tdm_debug_dump_dir);
1097                 tdm_debug_dump_dir = NULL;
1098         }
1099
1100         pthread_mutex_unlock(&gLock);
1101
1102         TDM_INFO("done");
1103 }
1104
1105 INTERN int
1106 tdm_display_check_module_abi(tdm_private_display *private_display, int abimaj, int abimin)
1107 {
1108         tdm_backend_module *module = private_display->module_data;
1109
1110         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1111                 return 0;
1112
1113         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1114                 return 0;
1115
1116         return 1;
1117 }
1118
1119 INTERN tdm_error
1120 tdm_display_enable_debug_module(const char*modules)
1121 {
1122         char temp[TDM_PATH_LEN];
1123         char *arg;
1124         char *end;
1125
1126         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1127
1128         tdm_debug_module = 0;
1129
1130         arg = strtok_r(temp, TDM_DELIM, &end);
1131         while (arg) {
1132                 if (!strncmp(arg, "none", 4)) {
1133                         tdm_debug_module = 0;
1134                         return TDM_ERROR_NONE;
1135                 }
1136                 if (!strncmp(arg, "all", 3)) {
1137                         tdm_debug_module = 0xFFFFFFFF;
1138                         return TDM_ERROR_NONE;
1139                 }
1140                 if (!strncmp(arg, "buffer", 6))
1141                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1142                 else if (!strncmp(arg, "thread", 6))
1143                         tdm_debug_module |= TDM_DEBUG_THREAD;
1144                 else if (!strncmp(arg, "mutex", 5))
1145                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1146                 else if (!strncmp(arg, "vblank", 6))
1147                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1148                 else if (!strncmp(arg, "commit", 6))
1149                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1150
1151                 arg = strtok_r(NULL, TDM_DELIM, &end);
1152         }
1153
1154         TDM_INFO("module debugging... '%s'", modules);
1155
1156         return TDM_ERROR_NONE;
1157 }
1158
1159 INTERN tdm_error
1160 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1161 {
1162         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1163         char *path = NULL, *path2;
1164         char *arg;
1165         char *end;
1166
1167         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1168         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1169         if (!path2 || path2[0] == '\0')
1170                 path2 = TDM_DUMP_DIR;
1171         else
1172                 path2++;
1173
1174         tdm_debug_dump = 0;
1175
1176         snprintf(temp, sizeof(temp), "%s", dump_str);
1177         arg = strtok_r(temp, ",", &end);
1178         TDM_GOTO_IF_FAIL(arg != NULL, done);
1179
1180         if (!strncmp(arg, "none", 4)) {
1181                 tdm_debug_dump = 0;
1182                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1183                 if (tdm_debug_dump_dir) {
1184                         free(tdm_debug_dump_dir);
1185                         tdm_debug_dump_dir = NULL;
1186                 }
1187                 goto done;
1188         }
1189
1190         path = tdm_helper_dump_make_directory(path2, reply, len);
1191         TDM_GOTO_IF_FAIL(path != NULL, done);
1192
1193         if (!strncmp(arg, "current", 7)) {
1194                 tdm_private_output *o = NULL;
1195                 if (!private_display) {
1196                         TDM_WRN("no private_display");
1197                         goto done;
1198                 }
1199
1200                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1201                         tdm_private_layer *l = NULL;
1202                         LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1203                                 char str[TDM_PATH_LEN];
1204                                 if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1205                                         continue;
1206                                 if (!l->showing_buffer)
1207                                         continue;
1208                                 snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1209                                 tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1210                         }
1211                 }
1212
1213                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1214                 goto done;
1215         }
1216
1217         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1218
1219         while (arg) {
1220                 if (!strncmp(arg, "all", 3)) {
1221                         tdm_debug_dump = 0xFFFFFFFF;
1222                         goto done;
1223                 } else if (!strncmp(arg, "layer", 5)) {
1224                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1225                 } else if (!strncmp(arg, "pp", 2)) {
1226                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1227                 } else if (!strncmp(arg, "capture", 7)) {
1228                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1229                 } else if (!strncmp(arg, "window", 6)) {
1230                         tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
1231                 } else
1232                         goto done;
1233
1234                 arg = strtok_r(NULL, ",", &end);
1235         }
1236
1237         if (tdm_debug_dump_dir)
1238                 free(tdm_debug_dump_dir);
1239
1240         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1241
1242         TDM_INFO("dump... '%s'", dump_str);
1243
1244 done:
1245         if (path)
1246                 free(path);
1247
1248         return TDM_ERROR_NONE;
1249 }
1250
1251 INTERN tdm_error
1252 tdm_display_enable_path(const char *path)
1253 {
1254         static int old_stdout = -1;
1255         char fd_name[TDM_PATH_LEN];
1256         int  log_fd = -1;
1257         FILE *log_fl;
1258
1259         if (old_stdout == -1)
1260                 old_stdout = dup(STDOUT_FILENO);
1261
1262         tdm_log_enable_dlog(0);
1263
1264         snprintf(fd_name, TDM_PATH_LEN, "%s", path);
1265
1266         log_fl = fopen(fd_name, "a");
1267         if (!log_fl) {
1268                 TDM_ERR("failed: open file(%s)\n", fd_name);
1269                 return TDM_ERROR_OPERATION_FAILED;
1270         }
1271
1272         fflush(stderr);
1273         close(STDOUT_FILENO);
1274
1275         setvbuf(log_fl, NULL, _IOLBF, 512);
1276         log_fd = fileno(log_fl);
1277
1278         dup2(log_fd, STDOUT_FILENO);
1279         fclose(log_fl);
1280
1281         return TDM_ERROR_NONE;
1282 }
1283
1284
1285 static void
1286 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1287                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1288 {
1289         tdm_error ret = TDM_ERROR_NONE;
1290
1291         TDM_TRACE_MARK("TDM_DISPLAY_TTRACE_VBlank");
1292
1293         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1294         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1295 }
1296
1297 INTERN tdm_error
1298 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1299 {
1300         static tdm_vblank *vblank = NULL;
1301         tdm_error ret = TDM_ERROR_NONE;
1302
1303         if (!enable) {
1304                 if (vblank)
1305                         tdm_vblank_destroy(vblank);
1306                 vblank = NULL;
1307                 return TDM_ERROR_NONE;
1308         } else {
1309                 const tdm_output_mode *mode = NULL;
1310
1311                 if (vblank)
1312                         return TDM_ERROR_NONE;
1313
1314                 vblank = tdm_vblank_create(dpy, output, &ret);
1315                 TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1316
1317                 ret = tdm_output_get_mode(output, &mode);
1318                 TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1319
1320                 ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1321                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1322
1323                 ret = tdm_vblank_set_enable_fake(vblank, 1);
1324                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1325
1326                 ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1327                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1328         }
1329
1330         return TDM_ERROR_NONE;
1331
1332 enable_fail:
1333         if (vblank)
1334                 tdm_vblank_destroy(vblank);
1335         vblank = NULL;
1336         return ret;
1337 }
1338
1339 INTERN tdm_error
1340 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1341 {
1342         private_display->print_fps = enable;
1343
1344         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1345
1346         return TDM_ERROR_NONE;
1347 }