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 <boram1288.park@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_private.h"
  41
  42 pthread_mutex_t tdm_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  43 int tdm_mutex_locked;
  44 const char *tdm_mutex_lock_func;
  45 int tdm_mutex_lock_line;
  46 const char *tdm_mutex_unlock_func;
  47 int tdm_mutex_unlock_line;
  48
  49 pthread_mutex_t tdm_debug_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  50 const char *tdm_debug_mutex_lock_func;
  51 int tdm_debug_mutex_lock_line;
  52
  53 /* LCOV_EXCL_START */
  54 static tdm_private_layer *
  55 _tdm_display_find_private_layer(tdm_private_output *private_output,
  56                                                                 tdm_layer *layer_backend)
  57 {
  58         tdm_private_layer *private_layer = NULL;
  59
  60         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  61                 if (private_layer->layer_backend == layer_backend)
  62                         return private_layer;
  63         }
  64
  65         return NULL;
  66 }
  67
  68 INTERN tdm_private_output *
  69 tdm_display_find_private_output(tdm_private_display *private_display, tdm_output *output_backend)
  70 {
  71         tdm_private_module *private_module = NULL;
  72         tdm_private_output *private_output = NULL;
  73
  74         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
  75                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
  76                         if (private_output->output_backend == output_backend)
  77                                 return private_output;
  78                 }
  79         }
  80
  81         return NULL;
  82 }
  83
  84 INTERN void *
  85 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
  86 {
  87         tdm_private_module *private_module = NULL;
  88         tdm_private_output *private_output = NULL;
  89
  90         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
  91                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
  92                         if (private_output->stamp == stamp)
  93                                 return private_output;
  94                 }
  95         }
  96
  97         return NULL;
  98 }
  99
 100 tdm_private_hwc *
 101 tdm_display_find_private_hwc(tdm_private_display *private_display, tdm_hwc *hwc_backend)
 102 {
 103         tdm_private_module *private_module = NULL;
 104         tdm_private_output *private_output = NULL;
 105         tdm_private_hwc *private_hwc = NULL;
 106
 107         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 108                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
 109                         if (!private_output->private_hwc) continue;
 110                         private_hwc = private_output->private_hwc;
 111                         if (private_hwc->hwc_backend == hwc_backend)
 112                                 return private_hwc;
 113                 }
 114         }
 115
 116         return NULL;
 117 }
 118
 119 INTERN void *
 120 tdm_display_find_hwc_stamp(tdm_private_display *private_display, double stamp)
 121 {
 122         tdm_private_module *private_module = NULL;
 123         tdm_private_output *private_output = NULL;
 124         tdm_private_hwc *private_hwc = NULL;
 125
 126         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 127                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
 128                         if (!private_output->private_hwc) continue;
 129                         private_hwc = private_output->private_hwc;
 130                         if (private_hwc->stamp == stamp)
 131                                 return private_hwc;
 132                 }
 133         }
 134
 135         return NULL;
 136 }
 137
 138 static void
 139 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
 140 {
 141         if (caps_pp->formats)
 142                 free(caps_pp->formats);
 143
 144         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 145 }
 146
 147 static void
 148 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 149 {
 150         if (caps_capture->formats)
 151                 free(caps_capture->formats);
 152
 153         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 154 }
 155
 156 static void
 157 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 158 {
 159         if (caps_layer->formats)
 160                 free(caps_layer->formats);
 161
 162         if (caps_layer->props)
 163                 free(caps_layer->props);
 164
 165         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 166 }
 167
 168 static void
 169 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 170 {
 171         if (caps_output->modes)
 172                 free(caps_output->modes);
 173
 174         if (caps_output->props)
 175                 free(caps_output->props);
 176
 177         memset(caps_output, 0, sizeof(tdm_caps_output));
 178 }
 179
 180 static void
 181 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 182 {
 183         tdm_private_capture *c = NULL, *cc = NULL;
 184
 185         tdm_layer_unset_buffer_internal(private_layer);
 186
 187         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 188         tdm_capture_destroy_internal(c);
 189
 190         _tdm_display_destroy_caps_layer(&private_layer->caps);
 191
 192         /* when destroying layer, someone could check if layer is valid. So delete
 193          * the layer's link at last.
 194          */
 195         LIST_DEL(&private_layer->link);
 196
 197         free(private_layer);
 198 }
 199
 200 static void
 201 _tdm_display_destroy_private_output(tdm_private_output *private_output)
 202 {
 203         tdm_private_display *private_display = private_output->private_display;
 204         tdm_private_layer *l = NULL, *ll = NULL;
 205         tdm_private_hwc *private_hwc = NULL;
 206         tdm_private_hwc_window *hw = NULL, *hww = NULL;
 207         tdm_private_capture *c = NULL, *cc = NULL;
 208         tdm_private_output_vblank_handler *v = NULL, *vv = NULL;
 209         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 210         tdm_private_hwc_commit_handler *hm = NULL, *hmm = NULL;
 211         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 212         tdm_private_output_change_handler *h = NULL, *hh = NULL;
 213
 214         free(private_output->layers_ptr);
 215
 216         if (private_output->vblank_timeout_timer)
 217                 tdm_event_loop_source_remove(private_output->vblank_timeout_timer);
 218
 219         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 220                 LIST_DEL(&v->link);
 221                 free(v);
 222         }
 223
 224         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 225                 LIST_DEL(&om->link);
 226                 free(om);
 227         }
 228
 229         if (private_output->private_hwc) {
 230                 private_hwc = private_output->private_hwc;
 231                 LIST_FOR_EACH_ENTRY_SAFE(hm, hmm, &private_hwc->hwc_commit_handler_list, link) {
 232                         LIST_DEL(&hm->link);
 233                         free(hm);
 234                 }
 235         } else {
 236                 LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 237                         LIST_DEL(&lm->link);
 238                         free(lm);
 239                 }
 240         }
 241
 242         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 243                 LIST_DEL(&lm->link);
 244                 free(lm);
 245         }
 246
 247         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list, link) {
 248                 LIST_DEL(&h->link);
 249                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_DPMS, NULL, tdm_output_thread_cb_change, h);
 250                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_STATUS, NULL, tdm_output_thread_cb_change, h);
 251                 free(h);
 252         }
 253
 254         if (private_output->vblank) {
 255                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 256                 _pthread_mutex_unlock(&private_display->lock);
 257                 tdm_vblank_destroy(private_output->vblank);
 258                 _pthread_mutex_lock(&private_display->lock);
 259         }
 260
 261         if (private_output->ttrace_vblank) {
 262                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 263                 _pthread_mutex_unlock(&private_display->lock);
 264                 tdm_vblank_destroy(private_output->ttrace_vblank);
 265                 _pthread_mutex_lock(&private_display->lock);
 266         }
 267
 268         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 269                 tdm_capture_destroy_internal(c);
 270
 271         if (private_output->private_hwc) {
 272                 private_hwc = private_output->private_hwc;
 273                 LIST_FOR_EACH_ENTRY_SAFE(hw, hww, &private_hwc->hwc_window_list, link)
 274                         tdm_hwc_window_destroy_internal(hw);
 275                 free(private_hwc);
 276         } else {
 277                 LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 278                         _tdm_display_destroy_private_layer(l);
 279         }
 280
 281         _tdm_display_destroy_caps_output(&private_output->caps);
 282
 283         /* when destroying output, vblank objects are also destroyed. vblank checks
 284          * if output object is valid. So delete the output's link at last.
 285          */
 286         LIST_DEL(&private_output->link);
 287
 288         private_output->stamp = 0;
 289         free(private_output);
 290 }
 291
 292 static void
 293 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 294 {
 295         tdm_private_module *private_module = NULL, *bb = NULL;
 296         tdm_private_output *o = NULL, *oo = NULL;
 297         tdm_private_pp *p = NULL, *pp = NULL;
 298
 299         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
 300                 LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_module->pp_list, link) {
 301                         tdm_pp_destroy_internal(p);
 302                 }
 303
 304                 LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_module->output_list, link) {
 305                         _tdm_display_destroy_private_output(o);
 306                 }
 307
 308                 _tdm_display_destroy_caps_pp(&private_module->caps_pp);
 309                 _tdm_display_destroy_caps_capture(&private_module->caps_capture);
 310
 311                 private_module->capabilities = 0;
 312                 private_module->caps_display.max_layer_count = 0;
 313
 314                 if (private_module->outputs) {
 315                         free(private_module->outputs);
 316                         private_module->outputs = NULL;
 317                 }
 318         }
 319 }
 320
 321 static tdm_error
 322 _tdm_display_update_caps_pp(tdm_private_module *private_module, tdm_caps_pp *caps)
 323 {
 324         tdm_func_display *func_display;
 325         tdm_error ret;
 326
 327         func_display = &private_module->func_display;
 328
 329         if (!func_display->display_get_pp_capability) {
 330                 TDM_ERR("backend(%s) no display_get_pp_capability()", private_module->module_data->name);
 331                 return TDM_ERROR_BAD_MODULE;
 332         }
 333
 334         ret = func_display->display_get_pp_capability(private_module->bdata, caps);
 335         if (ret != TDM_ERROR_NONE) {
 336                 TDM_ERR("backend(%s) display_get_pp_capability() failed", private_module->module_data->name);
 337                 return TDM_ERROR_BAD_MODULE;
 338         }
 339
 340         return TDM_ERROR_NONE;
 341 }
 342
 343 static tdm_error
 344 _tdm_display_update_caps_capture(tdm_private_module *private_module, tdm_caps_capture *caps)
 345 {
 346         tdm_func_display *func_display;
 347         tdm_error ret;
 348
 349         func_display = &private_module->func_display;
 350
 351         if (!func_display->display_get_capture_capability) {
 352                 TDM_ERR("backend(%s) no display_get_capture_capability()", private_module->module_data->name);
 353                 return TDM_ERROR_BAD_MODULE;
 354         }
 355
 356         ret = func_display->display_get_capture_capability(private_module->bdata, caps);
 357         if (ret != TDM_ERROR_NONE) {
 358                 TDM_ERR("backend(%s) display_get_capture_capability() failed", private_module->module_data->name);
 359                 return TDM_ERROR_BAD_MODULE;
 360         }
 361
 362         return TDM_ERROR_NONE;
 363 }
 364
 365 static tdm_error
 366 _tdm_display_update_caps_layer(tdm_private_module *private_module,
 367                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 368 {
 369         tdm_func_layer *func_layer = &private_module->func_layer;
 370         tdm_error ret;
 371
 372         if (!func_layer->layer_get_capability) {
 373                 TDM_ERR("backend(%s) no layer_get_capability()", private_module->module_data->name);
 374                 return TDM_ERROR_BAD_MODULE;
 375         }
 376
 377         ret = func_layer->layer_get_capability(layer_backend, caps);
 378         if (ret != TDM_ERROR_NONE) {
 379                 TDM_ERR("backend(%s) layer_get_capability() failed", private_module->module_data->name);
 380                 return TDM_ERROR_BAD_MODULE;
 381         }
 382
 383         return TDM_ERROR_NONE;
 384 }
 385
 386 static tdm_error
 387 _tdm_display_update_caps_output(tdm_private_module *private_module, int pipe,
 388                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 389 {
 390         tdm_func_output *func_output = &private_module->func_output;
 391         char temp[TDM_NAME_LEN];
 392         tdm_error ret;
 393         double stamp;
 394
 395         if (!func_output->output_get_capability) {
 396                 TDM_ERR("backend(%s) no output_get_capability()", private_module->module_data->name);
 397                 return TDM_ERROR_BAD_MODULE;
 398         }
 399
 400         stamp = tdm_helper_get_time();
 401         ret = func_output->output_get_capability(output_backend, caps);
 402         TDM_DBG("backend(%s) backend output_get_capability() time: %.3f ms",
 403                         private_module->module_data->name, (tdm_helper_get_time() - stamp) * 1000.0);
 404
 405         if (ret != TDM_ERROR_NONE) {
 406                 TDM_ERR("backend(%s) output_get_capability() failed", private_module->module_data->name);
 407                 return TDM_ERROR_BAD_MODULE;
 408         }
 409
 410         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 411         snprintf(temp, TDM_NAME_LEN, "%s-%d", caps->model, pipe);
 412         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 413
 414         return TDM_ERROR_NONE;
 415 }
 416
 417 static tdm_error
 418 _tdm_display_update_layer(tdm_private_output *private_output,
 419                                                   tdm_layer *layer_backend, int index)
 420 {
 421         tdm_private_layer *private_layer;
 422         tdm_error ret;
 423
 424         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 425         if (!private_layer) {
 426                 private_layer = calloc(1, sizeof(tdm_private_layer));
 427                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 428
 429                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 430                 LIST_INITHEAD(&private_layer->capture_list);
 431
 432                 private_layer->index = index;
 433                 private_layer->private_module = private_output->private_module;
 434                 private_layer->private_display = private_output->private_display;
 435                 private_layer->private_output = private_output;
 436                 private_layer->layer_backend = layer_backend;
 437                 private_layer->usable = 1;
 438         }
 439
 440         _tdm_display_destroy_caps_layer(&private_layer->caps);
 441
 442         ret = _tdm_display_update_caps_layer(private_output->private_module, layer_backend, &private_layer->caps);
 443         TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 444
 445         return TDM_ERROR_NONE;
 446 }
 447
 448 INTERN tdm_error
 449 tdm_display_update_output(tdm_private_module *private_module,
 450                                                   tdm_output *output_backend, int pipe, unsigned int need_new_caps)
 451 {
 452         tdm_func_output *func_output = &private_module->func_output;
 453         tdm_private_output *private_output = NULL;
 454         tdm_layer **layers = NULL;
 455         tdm_private_hwc *private_hwc = NULL;
 456         tdm_hwc *hwc;
 457         int layer_count = 0, i;
 458         tdm_error ret;
 459
 460         private_output = tdm_display_find_private_output(private_module->private_display, output_backend);
 461         if (!private_output) {
 462                 private_output = calloc(1, sizeof(tdm_private_output));
 463                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 464
 465                 private_output->stamp = tdm_helper_get_time();
 466                 while (tdm_display_find_output_stamp(private_module->private_display, private_output->stamp))
 467                         private_output->stamp++;
 468
 469                 LIST_ADDTAIL(&private_output->link, &private_module->output_list);
 470
 471                 private_output->private_module = private_module;
 472                 private_output->private_display = private_module->private_display;
 473                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 474                 private_output->output_backend = output_backend;
 475                 private_output->pipe = pipe;
 476                 private_output->index = pipe;
 477
 478                 LIST_INITHEAD(&private_output->capture_list);
 479                 LIST_INITHEAD(&private_output->vblank_handler_list);
 480                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 481                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 482                 LIST_INITHEAD(&private_output->change_handler_list);
 483
 484                 if (func_output->output_set_status_handler) {
 485                         func_output->output_set_status_handler(private_output->output_backend,
 486                                                                                                    tdm_output_cb_status,
 487                                                                                                    private_output);
 488                         private_output->regist_change_cb = 1;
 489                 }
 490
 491                 ret = _tdm_display_update_caps_output(private_module, pipe, output_backend, &private_output->caps);
 492                 TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 493
 494                 if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 495                         private_output->current_mode = NULL;
 496
 497                 /* get the tdm_hwc object */
 498                 if (private_output->caps.capabilities&TDM_OUTPUT_CAPABILITY_HWC) {
 499                         hwc = func_output->output_get_hwc(output_backend, &ret);
 500                         TDM_RETURN_VAL_IF_FAIL(hwc != NULL, ret);
 501
 502                         private_hwc = calloc(1, sizeof(tdm_private_hwc));
 503                         TDM_RETURN_VAL_IF_FAIL(private_hwc != NULL, TDM_ERROR_OUT_OF_MEMORY);
 504
 505                         private_hwc->private_module = private_module;
 506                         private_hwc->private_output = private_output;
 507                         private_hwc->hwc_backend = hwc;
 508                         private_hwc->index = pipe;
 509                         private_hwc->stamp = tdm_helper_get_time();
 510                         while (tdm_display_find_hwc_stamp(private_module->private_display, private_hwc->stamp))
 511                                 private_hwc->stamp++;
 512
 513                         LIST_INITHEAD(&private_hwc->hwc_window_list);
 514                         LIST_INITHEAD(&private_hwc->hwc_commit_handler_list);
 515
 516                         private_output->private_hwc = private_hwc;
 517                 } else {
 518                         LIST_INITHEAD(&private_output->layer_list);
 519                         LIST_INITHEAD(&private_output->layer_commit_handler_list);
 520                 }
 521         } else {
 522                 /* need_new_caps will be true only in case of "disconnected -> connected" and "connected -> disconnected"
 523                  * because we have to get new modes.
 524                  */
 525                 if (need_new_caps) {
 526                         _tdm_display_destroy_caps_output(&private_output->caps);
 527
 528                         ret = _tdm_display_update_caps_output(private_module, pipe, output_backend, &private_output->caps);
 529                         TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 530
 531                         if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 532                                 private_output->current_mode = NULL;
 533                 }
 534         }
 535
 536         /* do not use the layer object when the tdm_output has the hwc capability */
 537         if ((private_output->caps.capabilities&TDM_OUTPUT_CAPABILITY_HWC) == 0) {
 538                 layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 539                 if (ret != TDM_ERROR_NONE) {
 540                         free(layers);
 541                         return ret;
 542                 }
 543
 544                 for (i = 0; i < layer_count; i++) {
 545                         ret = _tdm_display_update_layer(private_output, layers[i], i);
 546                         if (ret != TDM_ERROR_NONE) {
 547                                 free(layers);
 548                                 return ret;
 549                         }
 550                 }
 551
 552                 free(layers);
 553         }
 554
 555         return TDM_ERROR_NONE;
 556 }
 557
 558 static void
 559 _tdm_display_set_main_first(tdm_output **outputs, int index)
 560 {
 561         tdm_output *output_tmp = NULL;
 562
 563         if (index == 0)
 564                 return;
 565
 566         output_tmp = outputs[0];
 567         outputs[0] = outputs[index];
 568         outputs[index] = output_tmp;
 569 }
 570
 571 static tdm_output **
 572 _tdm_display_get_ordered_outputs(tdm_private_module *private_module, int *count)
 573 {
 574         tdm_func_display *func_display = &private_module->func_display;
 575         tdm_output **outputs = NULL;
 576         tdm_output *output_dsi = NULL;
 577         tdm_output *output_lvds = NULL;
 578         tdm_output *output_hdmia = NULL;
 579         tdm_output *output_hdmib = NULL;
 580         int i, output_count = 0, output_connected_count = 0;
 581         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 582         tdm_error ret;
 583
 584         /* don't change list order if not init time */
 585         if (private_module->outputs) {
 586                 TDM_ERR("can't change output order");
 587                 return private_module->outputs;
 588         }
 589
 590         outputs = func_display->display_get_outputs(private_module->bdata, &output_count, &ret);
 591         if (ret != TDM_ERROR_NONE)
 592                 goto failed_get_outputs;
 593
 594         *count = output_count;
 595
 596         if (output_count == 0)
 597                 goto failed_get_outputs;
 598         else if (output_count == 1) {
 599                 private_module->outputs = outputs;
 600                 return outputs;
 601         }
 602
 603         /* count connected outputs */
 604         for (i = 0; i < output_count; i++) {
 605                 tdm_func_output *func_output = &private_module->func_output;
 606                 tdm_caps_output caps;
 607                 memset(&caps, 0, sizeof(tdm_caps_output));
 608
 609                 ret = func_output->output_get_capability(outputs[i], &caps);
 610                 if (ret != TDM_ERROR_NONE) {
 611                         TDM_ERR("output_get_capability() failed");
 612                         goto failed_get_outputs;
 613                 }
 614
 615                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 616                         output_connected_count++;
 617
 618                         switch (caps.type) {
 619                         case TDM_OUTPUT_TYPE_DSI:
 620                                 output_dsi = outputs[i];
 621                                 index_dsi = i;
 622                                 break;
 623                         case TDM_OUTPUT_TYPE_LVDS:
 624                                 output_lvds = outputs[i];
 625                                 index_lvds = i;
 626                                 break;
 627                         case TDM_OUTPUT_TYPE_HDMIA:
 628                                 output_hdmia = outputs[i];
 629                                 index_hdmia = i;
 630                                 break;
 631                         case TDM_OUTPUT_TYPE_HDMIB:
 632                                 output_hdmib = outputs[i];
 633                                 index_hdmib = i;
 634                                 break;
 635                         default:
 636                                 break;
 637                         }
 638                 }
 639
 640                 _tdm_display_destroy_caps_output(&caps);
 641         }
 642
 643         /* ordering : main output is first */
 644         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 645           * But hdmi is possible, so set hdmi to main display.
 646           * If connected only one output, it is main output.
 647           * If connected outputs over 2, has priority like below.
 648           * (dsi > lvds > hdmi > else)
 649           */
 650         if (output_connected_count == 0) {
 651                 /* hdmi > dsi > lvds > else */
 652                 if (output_hdmia != NULL)
 653                         _tdm_display_set_main_first(outputs, index_hdmia);
 654                 else if (output_hdmib != NULL)
 655                         _tdm_display_set_main_first(outputs, index_hdmib);
 656                 else if (output_dsi != NULL)
 657                         _tdm_display_set_main_first(outputs, index_dsi);
 658                 else if (output_lvds != NULL)
 659                         _tdm_display_set_main_first(outputs, index_lvds);
 660         } else { /* (output_connected_count > 1) */
 661                 /* dsi > lvds > hdmi > else */
 662                 if (output_dsi != NULL)
 663                         _tdm_display_set_main_first(outputs, index_dsi);
 664                 else if (output_lvds != NULL)
 665                         _tdm_display_set_main_first(outputs, index_lvds);
 666                 else if (output_hdmia != NULL)
 667                         _tdm_display_set_main_first(outputs, index_hdmia);
 668                 else if (output_hdmib != NULL)
 669                         _tdm_display_set_main_first(outputs, index_hdmib);
 670         }
 671
 672         private_module->outputs = outputs;
 673
 674         return outputs;
 675
 676 failed_get_outputs:
 677         free(outputs);
 678         *count = 0;
 679         return NULL;
 680 }
 681
 682 static tdm_error
 683 _tdm_display_setup(tdm_private_display *private_display)
 684 {
 685         tdm_private_module *private_module = NULL;
 686         tdm_error ret = TDM_ERROR_NONE;
 687         int index = 0;
 688
 689         if (private_display->pp_module) {
 690                 ret = _tdm_display_update_caps_pp(private_display->pp_module,
 691                                                                                   &private_display->pp_module->caps_pp);
 692                 if (ret != TDM_ERROR_NONE)
 693                         goto failed_update;
 694         }
 695
 696         if (private_display->capture_module) {
 697                 ret = _tdm_display_update_caps_capture(private_display->capture_module,
 698                                                                                            &private_display->capture_module->caps_capture);
 699                 if (ret != TDM_ERROR_NONE)
 700                         goto failed_update;
 701         }
 702
 703         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 704                 tdm_output **outputs;
 705                 int output_count = 0, i;
 706
 707                 outputs = _tdm_display_get_ordered_outputs(private_module, &output_count);
 708                 if (!outputs)
 709                         goto failed_update;
 710
 711                 for (i = 0; i < output_count; i++) {
 712                         ret = tdm_display_update_output(private_module, outputs[i], index++, 1);
 713                         if (ret != TDM_ERROR_NONE)
 714                                 goto failed_update;
 715                 }
 716         }
 717
 718         return TDM_ERROR_NONE;
 719
 720 failed_update:
 721         _tdm_display_destroy_private_display(private_display);
 722         return ret;
 723 }
 724 /* LCOV_EXCL_STOP */
 725
 726 EXTERN tdm_error
 727 tdm_display_update(tdm_display *dpy)
 728 {
 729         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 730
 731         TDM_DEPRECATED(NULL);
 732
 733         return TDM_ERROR_NONE;
 734 }
 735
 736 int tdm_debug_module;
 737 int tdm_debug_dump;
 738 int tdm_ttrace_module;
 739 int tdm_ttrace_output;
 740
 741 static tdm_private_display *g_private_display;
 742 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 743
 744 /* LCOV_EXCL_START */
 745 static tdm_error
 746 _tdm_display_check_module(tdm_backend_module *module)
 747 {
 748         int tdm_backend_major, tdm_backend_minor;
 749         int backend_module_major, backend_module_minor;
 750
 751         tdm_backend_major = TDM_BACKEND_GET_ABI_MAJOR(TDM_BACKEND_ABI_LATEST_VERSION);
 752         tdm_backend_minor = TDM_BACKEND_GET_ABI_MINOR(TDM_BACKEND_ABI_LATEST_VERSION);
 753
 754         TDM_INFO("TDM Backend ABI version : %d.%d",
 755                          tdm_backend_major, tdm_backend_minor);
 756
 757         if (!module->name) {
 758                 TDM_ERR("TDM backend doesn't have name");
 759                 return TDM_ERROR_BAD_MODULE;
 760         }
 761
 762         if (!module->vendor) {
 763                 TDM_ERR("TDM backend doesn't have vendor");
 764                 return TDM_ERROR_BAD_MODULE;
 765         }
 766
 767         backend_module_major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 768         backend_module_minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 769
 770         TDM_INFO("TDM module name: %s", module->name);
 771         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 772         TDM_INFO("'%s' backend ABI version: %d.%d", module->name, backend_module_major, backend_module_minor);
 773
 774         if (backend_module_major > tdm_backend_major) {
 775                 TDM_ERR("'%s' major version(%d) is newer than %d",
 776                                 module->name, backend_module_major, tdm_backend_major);
 777                 return TDM_ERROR_BAD_MODULE;
 778         }
 779
 780         if (tdm_backend_major == backend_module_major &&
 781                 backend_module_minor > tdm_backend_minor) {
 782                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 783                                 module->name, backend_module_minor, tdm_backend_minor);
 784                 return TDM_ERROR_BAD_MODULE;
 785         }
 786
 787         if (!module->init) {
 788                 TDM_ERR("'%s' doesn't have init function", module->name);
 789                 return TDM_ERROR_BAD_MODULE;
 790         }
 791
 792         if (!module->deinit) {
 793                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 794                 return TDM_ERROR_BAD_MODULE;
 795         }
 796
 797         return TDM_ERROR_NONE;
 798 }
 799
 800 static tdm_error
 801 _tdm_display_check_backend_functions(tdm_private_module *private_module)
 802 {
 803         tdm_func_display *func_display = &private_module->func_display;
 804         tdm_func_output *func_output = &private_module->func_output;
 805         tdm_func_layer *func_layer = &private_module->func_layer;
 806         tdm_error ret;
 807
 808         /* below functions should be implemented in backend side */
 809
 810         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 811         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capability, TDM_ERROR_BAD_MODULE);
 812         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 813         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 814         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 815         TDM_RETURN_VAL_IF_FAIL(func_output->output_wait_vblank, TDM_ERROR_BAD_MODULE);
 816         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_vblank_handler, TDM_ERROR_BAD_MODULE);
 817         TDM_RETURN_VAL_IF_FAIL(func_output->output_commit, TDM_ERROR_BAD_MODULE);
 818         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_commit_handler, TDM_ERROR_BAD_MODULE);
 819         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_mode, TDM_ERROR_BAD_MODULE);
 820         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 821         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_info, TDM_ERROR_BAD_MODULE);
 822         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_info, TDM_ERROR_BAD_MODULE);
 823         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_buffer, TDM_ERROR_BAD_MODULE);
 824         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_unset_buffer, TDM_ERROR_BAD_MODULE);
 825
 826         ret = func_display->display_get_capability(private_module->bdata, &private_module->caps_display);
 827         if (ret != TDM_ERROR_NONE) {
 828                 TDM_ERR("display_get_capability() failed");
 829                 return TDM_ERROR_BAD_MODULE;
 830         }
 831
 832         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 833                 tdm_func_pp *func_pp = &private_module->func_pp;
 834                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 835                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 836                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 837                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 838                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 839         }
 840
 841         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 842                 tdm_func_capture *func_capture = &private_module->func_capture;
 843                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 844                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 845                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 846                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 847                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 848                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 849                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 850                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 851         }
 852
 853         return TDM_ERROR_NONE;
 854 }
 855
 856 static tdm_error
 857 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 858                                                                    const char *file)
 859 {
 860         char path[TDM_PATH_LEN] = {0,};
 861         void *module = NULL;
 862         tdm_backend_module *module_data;
 863         tdm_backend_data *bdata = NULL;
 864         tdm_private_module *private_module = NULL;
 865         tdm_error ret;
 866         double stamp;
 867         int size;
 868
 869         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 870         if (size >= (int)sizeof(path)) {
 871                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 872                 return TDM_ERROR_BAD_MODULE;
 873         };
 874
 875         private_module = calloc(1, sizeof *private_module);
 876         if (!private_module) {
 877                 TDM_ERR("alloc failed: %m");
 878                 ret = TDM_ERROR_OUT_OF_MEMORY;
 879                 goto failed_load;
 880         }
 881
 882         private_module->private_display = private_display;
 883
 884         stamp = tdm_helper_get_time();
 885
 886         TDM_TRACE_BEGIN("TDM_Load_Backend");
 887         module = dlopen(path, RTLD_LAZY);
 888         if (!module) {
 889                 TDM_ERR("%s", dlerror());
 890                 TDM_TRACE_END();
 891                 ret = TDM_ERROR_BAD_MODULE;
 892                 goto failed_load;
 893         }
 894
 895         private_module->module = module;
 896
 897         module_data = dlsym(module, "tdm_backend_module_data");
 898         if (!module_data) {
 899                 TDM_ERR("'%s' doesn't have data object", file);
 900                 ret = TDM_ERROR_BAD_MODULE;
 901                 TDM_TRACE_END();
 902                 goto failed_load;
 903         }
 904         TDM_TRACE_END();
 905
 906         private_module->module_data = module_data;
 907
 908         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 909
 910         /* check if version, init() and deinit() are valid or not */
 911         ret = _tdm_display_check_module(module_data);
 912         if (ret != TDM_ERROR_NONE) {
 913                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
 914                 goto failed_load;
 915         }
 916
 917         private_display->current_module = private_module;
 918
 919         /* We don't care if backend_data is NULL or not. It's up to backend. */
 920         TDM_TRACE_BEGIN("TDM_Init_Backend");
 921         stamp = tdm_helper_get_time();
 922         bdata = module_data->init((tdm_display *)private_display, &ret);
 923         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 924         TDM_TRACE_END();
 925
 926         private_display->current_module = NULL;
 927
 928         private_module->bdata = bdata;
 929
 930         if (ret != TDM_ERROR_NONE) {
 931                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
 932                 goto failed_load;
 933         }
 934
 935         ret = _tdm_display_check_backend_functions(private_module);
 936         if (ret != TDM_ERROR_NONE) {
 937                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
 938                 goto failed_load;
 939         }
 940
 941         LIST_INITHEAD(&private_module->output_list);
 942         LIST_INITHEAD(&private_module->pp_list);
 943         LIST_INITHEAD(&private_module->capture_list);
 944
 945         LIST_ADDTAIL(&private_module->link, &private_display->module_list);
 946
 947         TDM_INFO("Success to load '%s' module", module_data->name);
 948
 949         return TDM_ERROR_NONE;
 950 failed_load:
 951         if (bdata)
 952                 module_data->deinit(bdata);
 953         if (module)
 954                 dlclose(module);
 955         if (private_module)
 956                 free(private_module);
 957         return ret;
 958 }
 959
 960 static tdm_error
 961 _tdm_display_load_modules(tdm_private_display *private_display)
 962 {
 963         const char *module_names;
 964         tdm_error ret = TDM_ERROR_NONE;
 965         char temp[TDM_PATH_LEN];
 966         char *arg;
 967         char *end;
 968
 969         LIST_INITHEAD(&private_display->module_list);
 970
 971         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
 972
 973         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
 974
 975         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
 976         while (arg) {
 977                 TDM_INFO("loading a %s backend", arg);
 978                 ret = _tdm_display_load_module_with_file(private_display, arg);
 979                 if (ret == TDM_ERROR_NONE)
 980                         TDM_INFO("%s backend loading success", arg);
 981                 else
 982                         TDM_INFO("%s backend loading failed", arg);
 983                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
 984         }
 985
 986         /* load bufmgr priv from dummy lib */
 987         if (LIST_IS_EMPTY(&private_display->module_list)) {
 988                 TDM_WRN("No backend. loading a %s backend", TDM_DUMMY_MODULE);
 989                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 990                 if (ret == TDM_ERROR_NONE)
 991                         TDM_INFO("%s backend loading success", TDM_DUMMY_MODULE);
 992                 else
 993                         TDM_INFO("%s backend loading failed", TDM_DUMMY_MODULE);
 994         }
 995
 996         return ret;
 997 }
 998
 999 static void
1000 _tdm_display_unload_modules(tdm_private_display *private_display)
1001 {
1002         tdm_private_module *private_module = NULL, *bb = NULL;
1003
1004         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
1005                 LIST_DEL(&private_module->link);
1006
1007                 if (private_module->module_data)
1008                         private_module->module_data->deinit(private_module->bdata);
1009                 if (private_module->module)
1010                         dlclose(private_module->module);
1011
1012                 free(private_module);
1013         }
1014 }
1015 /* LCOV_EXCL_STOP */
1016
1017 EXTERN tdm_display *
1018 tdm_display_init(tdm_error *error)
1019 {
1020         tdm_private_display *private_display = NULL;
1021         const char *str;
1022         tdm_error ret;
1023         double stamp1, stamp2, start;
1024         int mode;
1025
1026         pthread_mutex_lock(&gLock);
1027
1028         if (g_private_display) {
1029                 g_private_display->init_count++;
1030                 pthread_mutex_unlock(&gLock);
1031                 if (error)
1032                         *error = TDM_ERROR_NONE;
1033                 return g_private_display;
1034         }
1035
1036         start = stamp1 = tdm_helper_get_time();
1037
1038         stamp2 = tdm_helper_get_time();
1039         TDM_INFO("config init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1040         stamp1 = stamp2;
1041
1042         private_display = calloc(1, sizeof(tdm_private_display));
1043         if (!private_display) {
1044                 /* LCOV_EXCL_START */
1045                 ret = TDM_ERROR_OUT_OF_MEMORY;
1046                 TDM_ERR("'private_display != NULL' failed");
1047                 goto failed_alloc;
1048                 /* LCOV_EXCL_STOP */
1049         }
1050
1051         private_display->stamp = tdm_helper_get_time();
1052
1053         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
1054         if (str)
1055                 tdm_display_enable_debug_module(str);
1056
1057         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
1058         if (str)
1059                 tdm_display_enable_dump(private_display, str, NULL, NULL);
1060
1061         if (pthread_mutex_init(&private_display->lock, NULL)) {
1062                 /* LCOV_EXCL_START */
1063                 ret = TDM_ERROR_OPERATION_FAILED;
1064                 TDM_ERR("mutex init failed: %m");
1065                 goto failed_mutex_init;
1066                 /* LCOV_EXCL_STOP */
1067         }
1068
1069         _pthread_mutex_lock(&private_display->lock);
1070
1071         stamp2 = tdm_helper_get_time();
1072         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1073         stamp1 = stamp2;
1074
1075         ret = tdm_event_loop_init(private_display);
1076         if (ret != TDM_ERROR_NONE)
1077                 goto failed_event;
1078
1079         stamp2 = tdm_helper_get_time();
1080         TDM_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1081         stamp1 = stamp2;
1082
1083         ret = tdm_vblank_init(private_display);
1084         if (ret != TDM_ERROR_NONE)
1085                 goto failed_vblank;
1086
1087         ret = tdm_output_init(private_display);
1088         if (ret != TDM_ERROR_NONE)
1089                 goto failed_load;
1090
1091         ret = tdm_hwc_init(private_display);
1092         if (ret != TDM_ERROR_NONE)
1093                 goto failed_load;
1094
1095         ret = tdm_pp_init(private_display);
1096         if (ret != TDM_ERROR_NONE)
1097                 goto failed_load;
1098
1099         ret = tdm_capture_init(private_display);
1100         if (ret != TDM_ERROR_NONE)
1101                 goto failed_load;
1102
1103         ret = _tdm_display_load_modules(private_display);
1104         if (ret != TDM_ERROR_NONE)
1105                 goto failed_load;
1106
1107         stamp2 = tdm_helper_get_time();
1108         TDM_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1109         stamp1 = stamp2;
1110
1111 #ifdef INIT_BUFMGR
1112         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1113         if (tdm_drm_fd >= 0) {
1114                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1115                 close(tdm_drm_fd);
1116                 if (!private_display->bufmgr) {
1117                         TDM_ERR("tbm_bufmgr_init failed");
1118                         goto failed_update;
1119                 } else {
1120                         TDM_INFO("tbm_bufmgr_init successed");
1121                 }
1122
1123                 stamp2 = tdm_helper_get_time();
1124                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1125                 stamp1 = stamp2;
1126         }
1127 #endif
1128
1129         TDM_TRACE_BEGIN("TDM_Update_Display");
1130         ret = _tdm_display_setup(private_display);
1131         TDM_TRACE_END();
1132         if (ret != TDM_ERROR_NONE)
1133                 goto failed_update;
1134
1135         stamp2 = tdm_helper_get_time();
1136         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1137         stamp1 = stamp2;
1138
1139         tdm_event_loop_create_backend_source(private_display);
1140
1141         private_display->init_count = 1;
1142         g_private_display = private_display;
1143
1144         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1145          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1146          * this functionality can be turned off which means a default mode */
1147         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1148         if (mode > 0) {
1149                 tdm_private_module *b = NULL;
1150                 tdm_private_output *o = NULL;
1151
1152                 /* outputs which support hwc capability can work only
1153                  * if commit_per_vblank mode is '0' (default mode) */
1154                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1155                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1156                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1157                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1158                         }
1159                 }
1160         }
1161
1162         if (error)
1163                 *error = TDM_ERROR_NONE;
1164
1165         _pthread_mutex_unlock(&private_display->lock);
1166         pthread_mutex_unlock(&gLock);
1167
1168         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1169
1170         return (tdm_display *)private_display;
1171
1172 /* LCOV_EXCL_START */
1173 failed_update:
1174         _tdm_display_unload_modules(private_display);
1175 failed_load:
1176         tdm_vblank_deinit(private_display);
1177 failed_vblank:
1178         tdm_event_loop_stop(private_display);
1179         tdm_event_loop_deinit(private_display);
1180 failed_event:
1181         _pthread_mutex_unlock(&private_display->lock);
1182         pthread_mutex_destroy(&private_display->lock);
1183 failed_mutex_init:
1184         free(private_display);
1185 failed_alloc:
1186         if (error)
1187                 *error = ret;
1188         pthread_mutex_unlock(&gLock);
1189         return NULL;
1190 /* LCOV_EXCL_STOP */
1191 }
1192
1193 EXTERN void
1194 tdm_display_deinit(tdm_display *dpy)
1195 {
1196         tdm_private_display *private_display = dpy;
1197
1198         if (!private_display)
1199                 return;
1200
1201         pthread_mutex_lock(&gLock);
1202
1203         private_display->init_count--;
1204         if (private_display->init_count > 0) {
1205                 pthread_mutex_unlock(&gLock);
1206                 return;
1207         }
1208
1209         /* dont move the position of lock/unlock. all resource should be protected
1210          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1211          * things because it's finalized.
1212          */
1213         _pthread_mutex_lock(&private_display->lock);
1214         tdm_event_loop_stop(private_display);
1215         _pthread_mutex_unlock(&private_display->lock);
1216
1217         tdm_event_loop_deinit(private_display);
1218
1219         /* when private_output is destroyed, all vblank resources of client and server
1220          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1221          * we can unload backend modulues.
1222          */
1223         _tdm_display_destroy_private_display(private_display);
1224         _tdm_display_unload_modules(private_display);
1225
1226         tdm_vblank_deinit(private_display);
1227
1228 #ifdef INIT_BUFMGR
1229         if (private_display->bufmgr)
1230                 tbm_bufmgr_deinit(private_display->bufmgr);
1231 #endif
1232
1233         tbm_drm_helper_unset_tbm_master_fd();
1234
1235         pthread_mutex_destroy(&private_display->lock);
1236         free(private_display);
1237         g_private_display = NULL;
1238
1239         if (tdm_debug_dump_dir) {
1240                 free(tdm_debug_dump_dir);
1241                 tdm_debug_dump_dir = NULL;
1242         }
1243
1244         tdm_config_deinit();
1245
1246         pthread_mutex_unlock(&gLock);
1247
1248         TDM_INFO("done");
1249 }
1250
1251 INTERN tdm_private_display *
1252 tdm_display_get(void)
1253 {
1254         return g_private_display;
1255 }
1256