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