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 static tdm_error _tdm_display_load_module_with_file(tdm_private_display *private_display, const char *file);
  54
  55 /* LCOV_EXCL_START */
  56 static tdm_private_layer *
  57 _tdm_display_find_private_layer(tdm_private_output *private_output,
  58                                                                 tdm_layer *layer_backend)
  59 {
  60         tdm_private_layer *private_layer = NULL;
  61
  62         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  63                 if (private_layer->layer_backend == layer_backend)
  64                         return private_layer;
  65         }
  66
  67         return NULL;
  68 }
  69
  70 INTERN tdm_private_output *
  71 tdm_display_find_private_output(tdm_private_display *private_display, tdm_output *output_backend)
  72 {
  73         tdm_private_module *private_module = NULL;
  74         tdm_private_output *private_output = NULL;
  75
  76         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
  77                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
  78                         if (private_output->output_backend == output_backend)
  79                                 return private_output;
  80                 }
  81         }
  82
  83         return NULL;
  84 }
  85
  86 INTERN unsigned int
  87 tdm_display_find_empty_output_pipe(tdm_private_display *private_display)
  88 {
  89         tdm_private_module *private_module = NULL;
  90         tdm_private_output *private_output = NULL;
  91         unsigned int pipe = 0;
  92         while(1) {
  93                 int found = 0;
  94                 LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
  95                         LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
  96                                 if (private_output->pipe == pipe) {
  97                                         found = 1;
  98                                         break;
  99                                 }
 100                         }
 101                         if (found)
 102                                 break;
 103                 }
 104
 105                 if (!found)
 106                         break;
 107                 else
 108                         pipe++;
 109         }
 110
 111         return pipe;
 112 }
 113
 114 INTERN void *
 115 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
 116 {
 117         tdm_private_module *private_module = NULL;
 118         tdm_private_output *private_output = NULL;
 119
 120         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 121                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
 122                         if (private_output->stamp == stamp)
 123                                 return private_output;
 124                 }
 125         }
 126
 127         return NULL;
 128 }
 129
 130 static void
 131 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
 132 {
 133         if (caps_pp->formats)
 134                 free(caps_pp->formats);
 135
 136         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 137 }
 138
 139 static void
 140 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 141 {
 142         if (caps_capture->formats)
 143                 free(caps_capture->formats);
 144
 145         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 146 }
 147
 148 static void
 149 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 150 {
 151         if (caps_layer->formats)
 152                 free(caps_layer->formats);
 153
 154         if (caps_layer->props)
 155                 free(caps_layer->props);
 156
 157         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 158 }
 159
 160 static void
 161 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 162 {
 163         if (caps_output->modes)
 164                 free(caps_output->modes);
 165
 166         if (caps_output->props)
 167                 free(caps_output->props);
 168
 169         memset(caps_output, 0, sizeof(tdm_caps_output));
 170 }
 171
 172 static void
 173 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 174 {
 175         tdm_private_capture *c = NULL, *cc = NULL;
 176
 177         tdm_layer_unset_buffer_internal(private_layer);
 178
 179         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 180         tdm_capture_destroy_internal(c);
 181
 182         _tdm_display_destroy_caps_layer(&private_layer->caps);
 183
 184         /* when destroying layer, someone could check if layer is valid. So delete
 185          * the layer's link at last.
 186          */
 187         LIST_DEL(&private_layer->link);
 188
 189         free(private_layer);
 190 }
 191
 192 INTERN void
 193 tdm_display_destroy_private_output(tdm_private_output *private_output)
 194 {
 195         tdm_private_display *private_display = private_output->private_display;
 196         tdm_private_layer *l = NULL, *ll = NULL;
 197         tdm_private_hwc_window *hw = NULL, *hww = NULL;
 198         tdm_private_capture *c = NULL, *cc = NULL;
 199         tdm_private_output_vblank_handler *v = NULL, *vv = NULL;
 200         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 201         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 202         tdm_private_output_change_handler *h = NULL, *hh = NULL;
 203         tdm_private_output_destroy_handler *dh = NULL, *dhh = NULL;
 204         tdm_error ret;
 205
 206         ret = tdm_output_call_thread_cb_destroy(private_output);
 207         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 208
 209         free(private_output->layers_ptr);
 210
 211         if (private_output->vblank_timeout_timer)
 212                 tdm_event_loop_source_remove(private_output->vblank_timeout_timer);
 213
 214         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 215                 LIST_DEL(&v->link);
 216                 free(v);
 217         }
 218
 219         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 220                 LIST_DEL(&om->link);
 221                 free(om);
 222         }
 223
 224         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 225                 LIST_DEL(&lm->link);
 226                 free(lm);
 227         }
 228
 229         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 230                 LIST_DEL(&lm->link);
 231                 free(lm);
 232         }
 233
 234         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list, link) {
 235                 LIST_DEL(&h->link);
 236                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_DPMS, NULL, tdm_output_thread_cb_change, h);
 237                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_STATUS, NULL, tdm_output_thread_cb_change, h);
 238                 free(h);
 239         }
 240
 241         LIST_FOR_EACH_ENTRY_SAFE(dh, dhh, &private_output->destroy_handler_list, link) {
 242                 LIST_DEL(&dh->link);
 243                 tdm_thread_cb_remove(dh->private_output, TDM_THREAD_CB_OUTPUT_DESTROY, NULL, tdm_output_thread_cb_destroy, dh);
 244                 free(dh);
 245         }
 246
 247         if (private_output->vblank) {
 248                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 249                 _pthread_mutex_unlock(&private_display->lock);
 250                 tdm_vblank_destroy(private_output->vblank);
 251                 _pthread_mutex_lock(&private_display->lock);
 252         }
 253
 254         if (private_output->ttrace_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->ttrace_vblank);
 258                 _pthread_mutex_lock(&private_display->lock);
 259         }
 260
 261         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 262         tdm_capture_destroy_internal(c);
 263
 264         LIST_FOR_EACH_ENTRY_SAFE(hw, hww, &private_output->hwc_window_list, link)
 265         tdm_hwc_window_destroy_internal(hw);
 266
 267         LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 268         _tdm_display_destroy_private_layer(l);
 269
 270         _tdm_display_destroy_caps_output(&private_output->caps);
 271
 272         tdm_thread_cb_remove(private_output, TDM_THREAD_CB_NEED_VALIDATE, NULL,
 273                                                  tdm_output_need_validate_handler_thread, NULL);
 274         tdm_event_loop_source_remove(private_output->need_validate.event_source);
 275         close(private_output->need_validate.event_fd);
 276
 277         /* when destroying output, vblank objects are also destroyed. vblank checks
 278          * if output object is valid. So delete the output's link at last.
 279          */
 280         LIST_DEL(&private_output->link);
 281
 282         private_output->stamp = 0;
 283         free(private_output);
 284 }
 285
 286 static void
 287 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 288 {
 289         tdm_private_module *private_module = NULL, *bb = NULL;
 290         tdm_private_output *o = NULL, *oo = NULL;
 291         tdm_private_pp *p = NULL, *pp = NULL;
 292         tdm_private_output_create_handler *ch = NULL, *chh = NULL;
 293
 294         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
 295                 LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_module->pp_list, link) {
 296                         tdm_pp_destroy_internal(p);
 297                 }
 298
 299                 LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_module->output_list, link) {
 300                         tdm_display_destroy_private_output(o);
 301                 }
 302
 303                 _tdm_display_destroy_caps_pp(&private_module->caps_pp);
 304                 _tdm_display_destroy_caps_capture(&private_module->caps_capture);
 305
 306                 private_module->capabilities = 0;
 307                 private_module->caps_display.max_layer_count = 0;
 308
 309                 if (private_module->outputs) {
 310                         free(private_module->outputs);
 311                         private_module->outputs = NULL;
 312                 }
 313         }
 314
 315         LIST_FOR_EACH_ENTRY_SAFE(ch, chh, &private_display->output_create_handler_list, link) {
 316                 LIST_DEL(&ch->link);
 317                 tdm_thread_cb_remove(ch->private_display, TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, NULL,
 318                                                          tdm_display_thread_cb_output_create, ch);
 319                 free(ch);
 320         }
 321 }
 322
 323 static tdm_error
 324 _tdm_display_update_caps_pp(tdm_private_module *private_module, tdm_caps_pp *caps)
 325 {
 326         tdm_func_display *func_display;
 327         tdm_error ret;
 328
 329         func_display = &private_module->func_display;
 330
 331         if (!func_display->display_get_pp_capability) {
 332                 TDM_ERR("backend(%s) no display_get_pp_capability()", private_module->module_data->name);
 333                 return TDM_ERROR_BAD_MODULE;
 334         }
 335
 336         ret = func_display->display_get_pp_capability(private_module->bdata, caps);
 337         if (ret != TDM_ERROR_NONE) {
 338                 TDM_ERR("backend(%s) display_get_pp_capability() failed", private_module->module_data->name);
 339                 return TDM_ERROR_BAD_MODULE;
 340         }
 341
 342         return TDM_ERROR_NONE;
 343 }
 344
 345 static tdm_error
 346 _tdm_display_update_caps_capture(tdm_private_module *private_module, tdm_caps_capture *caps)
 347 {
 348         tdm_func_display *func_display;
 349         tdm_error ret;
 350
 351         func_display = &private_module->func_display;
 352
 353         if (!func_display->display_get_capture_capability) {
 354                 TDM_ERR("backend(%s) no display_get_capture_capability()", private_module->module_data->name);
 355                 return TDM_ERROR_BAD_MODULE;
 356         }
 357
 358         ret = func_display->display_get_capture_capability(private_module->bdata, caps);
 359         if (ret != TDM_ERROR_NONE) {
 360                 TDM_ERR("backend(%s) display_get_capture_capability() failed", private_module->module_data->name);
 361                 return TDM_ERROR_BAD_MODULE;
 362         }
 363
 364         return TDM_ERROR_NONE;
 365 }
 366
 367 static tdm_error
 368 _tdm_display_update_caps_layer(tdm_private_module *private_module,
 369                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 370 {
 371         tdm_func_layer *func_layer = &private_module->func_layer;
 372         tdm_error ret;
 373
 374         if (!func_layer->layer_get_capability) {
 375                 TDM_ERR("backend(%s) no layer_get_capability()", private_module->module_data->name);
 376                 return TDM_ERROR_BAD_MODULE;
 377         }
 378
 379         ret = func_layer->layer_get_capability(layer_backend, caps);
 380         if (ret != TDM_ERROR_NONE) {
 381                 TDM_ERR("backend(%s) layer_get_capability() failed", private_module->module_data->name);
 382                 return TDM_ERROR_BAD_MODULE;
 383         }
 384
 385         return TDM_ERROR_NONE;
 386 }
 387
 388 static tdm_error
 389 _tdm_display_update_caps_output(tdm_private_module *private_module, int pipe,
 390                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 391 {
 392         tdm_func_output *func_output = &private_module->func_output;
 393         char temp[TDM_NAME_LEN];
 394         tdm_error ret;
 395         double stamp;
 396
 397         stamp = tdm_helper_get_time();
 398         ret = func_output->output_get_capability(output_backend, caps);
 399         TDM_DBG("backend(%s) backend output_get_capability() time: %.3f ms",
 400                         private_module->module_data->name, (tdm_helper_get_time() - stamp) * 1000.0);
 401
 402         if (ret != TDM_ERROR_NONE) {
 403                 TDM_ERR("backend(%s) output_get_capability() failed", private_module->module_data->name);
 404                 return TDM_ERROR_BAD_MODULE;
 405         }
 406
 407         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 408         snprintf(temp, TDM_NAME_LEN, "%s-%d", caps->model, pipe);
 409         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 410
 411         return TDM_ERROR_NONE;
 412 }
 413
 414 static tdm_error
 415 _tdm_display_update_layer(tdm_private_output *private_output,
 416                                                   tdm_layer *layer_backend, int index)
 417 {
 418         tdm_private_layer *private_layer;
 419         tdm_error ret;
 420
 421         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 422         if (!private_layer) {
 423                 private_layer = calloc(1, sizeof(tdm_private_layer));
 424                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 425
 426                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 427                 LIST_INITHEAD(&private_layer->capture_list);
 428
 429                 private_layer->index = index;
 430                 private_layer->private_module = private_output->private_module;
 431                 private_layer->private_display = private_output->private_display;
 432                 private_layer->private_output = private_output;
 433                 private_layer->layer_backend = layer_backend;
 434                 private_layer->usable = 1;
 435         }
 436
 437         _tdm_display_destroy_caps_layer(&private_layer->caps);
 438
 439         ret = _tdm_display_update_caps_layer(private_output->private_module, layer_backend, &private_layer->caps);
 440         TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 441
 442         return TDM_ERROR_NONE;
 443 }
 444
 445 INTERN tdm_error
 446 tdm_display_update_output(tdm_private_module *private_module, tdm_output *output_backend)
 447 {
 448         tdm_func_output *func_output = &private_module->func_output;
 449         tdm_private_display *private_display = NULL;
 450         tdm_private_output *private_output = NULL;
 451         tdm_layer **layers = NULL;
 452         int layer_count = 0, i;
 453         tdm_error ret;
 454         unsigned int output_created = 0;
 455
 456         private_display = private_module->private_display;
 457
 458         private_output = tdm_display_find_private_output(private_display, output_backend);
 459         if (!private_output) {
 460                 unsigned int pipe = tdm_display_find_empty_output_pipe(private_display);
 461
 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_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_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->layer_list);
 479                 LIST_INITHEAD(&private_output->hwc_window_list);
 480                 LIST_INITHEAD(&private_output->capture_list);
 481                 LIST_INITHEAD(&private_output->vblank_handler_list);
 482                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 483                 LIST_INITHEAD(&private_output->layer_commit_handler_list);
 484                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 485                 LIST_INITHEAD(&private_output->destroy_handler_list);
 486                 LIST_INITHEAD(&private_output->change_handler_list);
 487
 488                 private_output->need_validate.event_fd = -1;
 489
 490                 if (func_output->output_set_status_handler) {
 491                         func_output->output_set_status_handler(private_output->output_backend,
 492                                                                                                    tdm_output_cb_status,
 493                                                                                                    private_output);
 494                         private_output->regist_change_cb = 1;
 495                 }
 496
 497                 output_created = 1;
 498         }
 499
 500         /* NOTE that output modes will be allocated newly after here */
 501         _tdm_display_destroy_caps_output(&private_output->caps);
 502         ret = _tdm_display_update_caps_output(private_module, private_output->pipe, output_backend, &private_output->caps);
 503         TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 504
 505         if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 506                 private_output->current_mode = NULL;
 507
 508         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 509         if (ret != TDM_ERROR_NONE) {
 510                 free(layers);
 511                 return ret;
 512         }
 513
 514         for (i = 0; i < layer_count; i++) {
 515                 ret = _tdm_display_update_layer(private_output, layers[i], i);
 516                 if (ret != TDM_ERROR_NONE) {
 517                         free(layers);
 518                         return ret;
 519                 }
 520         }
 521
 522         free(layers);
 523
 524         if (output_created) {
 525                 ret = tdm_display_call_thread_cb_output_create(private_display, private_output);
 526                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 527         }
 528
 529         return TDM_ERROR_NONE;
 530 }
 531
 532 static void
 533 _tdm_display_set_main_first(tdm_output **outputs, int index)
 534 {
 535         tdm_output *output_tmp = NULL;
 536
 537         if (index == 0)
 538                 return;
 539
 540         output_tmp = outputs[0];
 541         outputs[0] = outputs[index];
 542         outputs[index] = output_tmp;
 543 }
 544
 545 static tdm_output **
 546 _tdm_display_get_ordered_outputs(tdm_private_module *private_module, int *count)
 547 {
 548         tdm_func_display *func_display = &private_module->func_display;
 549         tdm_output **outputs = NULL;
 550         tdm_output *output_dsi = NULL;
 551         tdm_output *output_lvds = NULL;
 552         tdm_output *output_hdmia = NULL;
 553         tdm_output *output_hdmib = NULL;
 554         int i, output_count = 0, output_connected_count = 0;
 555         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 556         tdm_error ret;
 557
 558         /* don't change list order if not init time */
 559         if (private_module->outputs) {
 560                 TDM_ERR("can't change output order");
 561                 return private_module->outputs;
 562         }
 563
 564         outputs = func_display->display_get_outputs(private_module->bdata, &output_count, &ret);
 565         if (ret != TDM_ERROR_NONE)
 566                 goto no_output;
 567
 568         *count = output_count;
 569
 570         if (output_count == 0)
 571                 goto no_output;
 572         else if (output_count == 1) {
 573                 private_module->outputs = outputs;
 574                 return outputs;
 575         }
 576
 577         /* count connected outputs */
 578         for (i = 0; i < output_count; i++) {
 579                 tdm_func_output *func_output = &private_module->func_output;
 580                 tdm_caps_output caps;
 581                 memset(&caps, 0, sizeof(tdm_caps_output));
 582
 583                 ret = func_output->output_get_capability(outputs[i], &caps);
 584                 if (ret != TDM_ERROR_NONE) {
 585                         TDM_ERR("output_get_capability() failed");
 586                         goto no_output;
 587                 }
 588
 589                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 590                         output_connected_count++;
 591
 592                         switch (caps.type) {
 593                         case TDM_OUTPUT_TYPE_DSI:
 594                                 output_dsi = outputs[i];
 595                                 index_dsi = i;
 596                                 break;
 597                         case TDM_OUTPUT_TYPE_LVDS:
 598                                 output_lvds = outputs[i];
 599                                 index_lvds = i;
 600                                 break;
 601                         case TDM_OUTPUT_TYPE_HDMIA:
 602                                 output_hdmia = outputs[i];
 603                                 index_hdmia = i;
 604                                 break;
 605                         case TDM_OUTPUT_TYPE_HDMIB:
 606                                 output_hdmib = outputs[i];
 607                                 index_hdmib = i;
 608                                 break;
 609                         default:
 610                                 break;
 611                         }
 612                 }
 613
 614                 _tdm_display_destroy_caps_output(&caps);
 615         }
 616
 617         /* ordering : main output is first */
 618         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 619           * But hdmi is possible, so set hdmi to main display.
 620           * If connected only one output, it is main output.
 621           * If connected outputs over 2, has priority like below.
 622           * (dsi > lvds > hdmi > else)
 623           */
 624         if (output_connected_count == 0) {
 625                 /* hdmi > dsi > lvds > else */
 626                 if (output_hdmia != NULL)
 627                         _tdm_display_set_main_first(outputs, index_hdmia);
 628                 else if (output_hdmib != NULL)
 629                         _tdm_display_set_main_first(outputs, index_hdmib);
 630                 else if (output_dsi != NULL)
 631                         _tdm_display_set_main_first(outputs, index_dsi);
 632                 else if (output_lvds != NULL)
 633                         _tdm_display_set_main_first(outputs, index_lvds);
 634         } else { /* (output_connected_count > 1) */
 635                 /* dsi > lvds > hdmi > else */
 636                 if (output_dsi != NULL)
 637                         _tdm_display_set_main_first(outputs, index_dsi);
 638                 else if (output_lvds != NULL)
 639                         _tdm_display_set_main_first(outputs, index_lvds);
 640                 else if (output_hdmia != NULL)
 641                         _tdm_display_set_main_first(outputs, index_hdmia);
 642                 else if (output_hdmib != NULL)
 643                         _tdm_display_set_main_first(outputs, index_hdmib);
 644         }
 645
 646         private_module->outputs = outputs;
 647
 648         return outputs;
 649
 650 no_output:
 651         free(outputs);
 652         *count = 0;
 653         return NULL;
 654 }
 655
 656 static tdm_error
 657 _tdm_display_setup(tdm_private_display *private_display)
 658 {
 659         tdm_private_module *private_module = NULL;
 660         tdm_error ret = TDM_ERROR_NONE;
 661         int output_count = 0;
 662
 663         if (private_display->pp_module) {
 664                 ret = _tdm_display_update_caps_pp(private_display->pp_module,
 665                                                                                   &private_display->pp_module->caps_pp);
 666                 if (ret != TDM_ERROR_NONE)
 667                         goto failed_update;
 668         }
 669
 670         if (private_display->capture_module) {
 671                 ret = _tdm_display_update_caps_capture(private_display->capture_module,
 672                                                                                            &private_display->capture_module->caps_capture);
 673                 if (ret != TDM_ERROR_NONE)
 674                         goto failed_update;
 675         }
 676
 677         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 678                 tdm_output **outputs;
 679                 int i, count = 0;
 680
 681                 outputs = _tdm_display_get_ordered_outputs(private_module, &count);
 682
 683                 if (count > 0)
 684                         TDM_GOTO_IF_FAIL(outputs != NULL, failed_update);
 685
 686                 for (i = 0; i < count; i++) {
 687                         ret = tdm_display_update_output(private_module, outputs[i]);
 688                         if (ret != TDM_ERROR_NONE)
 689                                 goto failed_update;
 690          output_count++;
 691                 }
 692         }
 693
 694         /* At least, the output count should be greater than 0 to ensure tdm_vblank works.
 695          * So we will create a dummy output when backends don't have any output.
 696          * Without destroying a tdm_output object, this dummy output will be replaced with
 697          * a virtual output which is created in runtime.
 698          */
 699         if (output_count == 0) {
 700                 tdm_output **outputs;
 701                 int i, count = 0;
 702
 703                 TDM_INFO("loading a %s backend", TDM_DUMMY_MODULE);
 704                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 705                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed_update);
 706                 TDM_GOTO_IF_FAIL(private_display->dummy_module != NULL, failed_update);
 707
 708                 private_module = private_display->dummy_module;
 709
 710                 outputs = _tdm_display_get_ordered_outputs(private_module, &count);
 711                 TDM_GOTO_IF_FAIL(count > 0, failed_update);
 712                 TDM_GOTO_IF_FAIL(outputs != NULL, failed_update);
 713
 714                 for (i = 0; i < count; i++) {
 715                         ret = tdm_display_update_output(private_module, outputs[i]);
 716                         if (ret != TDM_ERROR_NONE)
 717                                 goto failed_update;
 718                 }
 719         }
 720
 721         return TDM_ERROR_NONE;
 722
 723 failed_update:
 724         _tdm_display_destroy_private_display(private_display);
 725         return ret;
 726 }
 727 /* LCOV_EXCL_STOP */
 728
 729 EXTERN tdm_error
 730 tdm_display_update(tdm_display *dpy)
 731 {
 732         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 733
 734         TDM_DEPRECATED(NULL);
 735
 736         return TDM_ERROR_NONE;
 737 }
 738
 739 int tdm_debug_module;
 740 int tdm_debug_dump;
 741 int tdm_ttrace_module;
 742 int tdm_ttrace_output;
 743
 744 static tdm_private_display *g_private_display;
 745 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 746
 747 /* LCOV_EXCL_START */
 748 static tdm_error
 749 _tdm_display_check_module(tdm_backend_module *module)
 750 {
 751         int major, minor;
 752
 753         TDM_INFO("TDM ABI version : %d.%d",
 754                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 755
 756         if (!module->name) {
 757                 TDM_ERR("TDM backend doesn't have name");
 758                 return TDM_ERROR_BAD_MODULE;
 759         }
 760
 761         if (!module->vendor) {
 762                 TDM_ERR("TDM backend doesn't have vendor");
 763                 return TDM_ERROR_BAD_MODULE;
 764         }
 765
 766         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 767         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 768
 769         TDM_INFO("TDM module name: %s", module->name);
 770         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 771         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 772
 773         if (major != TDM_MAJOR_VERSION) {
 774                 TDM_ERR("'%s' major version mismatch, %d != %d",
 775                                 module->name, major, TDM_MAJOR_VERSION);
 776                 return TDM_ERROR_BAD_MODULE;
 777         }
 778
 779         if (minor > TDM_MINOR_VERSION) {
 780                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 781                                 module->name, minor, TDM_MINOR_VERSION);
 782                 return TDM_ERROR_BAD_MODULE;
 783         }
 784
 785         if (!module->init) {
 786                 TDM_ERR("'%s' doesn't have init function", module->name);
 787                 return TDM_ERROR_BAD_MODULE;
 788         }
 789
 790         if (!module->deinit) {
 791                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 792                 return TDM_ERROR_BAD_MODULE;
 793         }
 794
 795         return TDM_ERROR_NONE;
 796 }
 797
 798 static tdm_error
 799 _tdm_display_check_backend_functions(tdm_private_module *private_module)
 800 {
 801         tdm_func_display *func_display = &private_module->func_display;
 802         tdm_func_output *func_output = &private_module->func_output;
 803         tdm_func_layer *func_layer = &private_module->func_layer;
 804         tdm_error ret;
 805
 806         /* below functions should be implemented in backend side */
 807
 808         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 809         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capability, TDM_ERROR_BAD_MODULE);
 810         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 811         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 812         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 813         TDM_RETURN_VAL_IF_FAIL(func_output->output_wait_vblank, TDM_ERROR_BAD_MODULE);
 814         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_vblank_handler, TDM_ERROR_BAD_MODULE);
 815         TDM_RETURN_VAL_IF_FAIL(func_output->output_commit, TDM_ERROR_BAD_MODULE);
 816         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_commit_handler, TDM_ERROR_BAD_MODULE);
 817         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_mode, TDM_ERROR_BAD_MODULE);
 818         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 819         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_info, TDM_ERROR_BAD_MODULE);
 820         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_info, TDM_ERROR_BAD_MODULE);
 821         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_buffer, TDM_ERROR_BAD_MODULE);
 822         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_unset_buffer, TDM_ERROR_BAD_MODULE);
 823
 824         ret = func_display->display_get_capability(private_module->bdata, &private_module->caps_display);
 825         if (ret != TDM_ERROR_NONE) {
 826                 TDM_ERR("display_get_capability() failed");
 827                 return TDM_ERROR_BAD_MODULE;
 828         }
 829
 830         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 831                 tdm_func_pp *func_pp = &private_module->func_pp;
 832                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 833                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 834                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 835                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 836                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 837         }
 838
 839         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 840                 tdm_func_capture *func_capture = &private_module->func_capture;
 841                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 842                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 843                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 844                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 845                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 846                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 847                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 848                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 849         }
 850
 851         return TDM_ERROR_NONE;
 852 }
 853
 854 static tdm_error
 855 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 856                                                                    const char *file)
 857 {
 858         char path[TDM_PATH_LEN] = {0,};
 859         void *module = NULL;
 860         tdm_backend_module *module_data;
 861         tdm_backend_data *bdata = NULL;
 862         tdm_private_module *private_module = NULL;
 863         tdm_error ret;
 864         double stamp;
 865         int size;
 866
 867         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 868         if (size >= (int)sizeof(path)) {
 869                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 870                 return TDM_ERROR_BAD_MODULE;
 871         };
 872
 873         private_module = calloc(1, sizeof *private_module);
 874         if (!private_module) {
 875                 TDM_ERR("alloc failed: %m");
 876                 ret = TDM_ERROR_OUT_OF_MEMORY;
 877                 goto failed_load;
 878         }
 879
 880         private_module->private_display = private_display;
 881
 882         stamp = tdm_helper_get_time();
 883
 884         TDM_TRACE_BEGIN("TDM_Load_Backend");
 885         module = dlopen(path, RTLD_LAZY);
 886         if (!module) {
 887                 TDM_ERR("%s", dlerror());
 888                 TDM_TRACE_END();
 889                 ret = TDM_ERROR_BAD_MODULE;
 890                 goto failed_load;
 891         }
 892
 893         private_module->module = module;
 894
 895         module_data = dlsym(module, "tdm_backend_module_data");
 896         if (!module_data) {
 897                 TDM_ERR("'%s' doesn't have data object", file);
 898                 ret = TDM_ERROR_BAD_MODULE;
 899                 TDM_TRACE_END();
 900                 goto failed_load;
 901         }
 902         TDM_TRACE_END();
 903
 904         private_module->module_data = module_data;
 905
 906         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 907
 908         /* check if version, init() and deinit() are valid or not */
 909         ret = _tdm_display_check_module(module_data);
 910         if (ret != TDM_ERROR_NONE) {
 911                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
 912                 goto failed_load;
 913         }
 914
 915         private_display->current_module = private_module;
 916
 917         /* We don't care if backend_data is NULL or not. It's up to backend. */
 918         TDM_TRACE_BEGIN("TDM_Init_Backend");
 919         stamp = tdm_helper_get_time();
 920         bdata = module_data->init((tdm_display *)private_display, &ret);
 921         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 922         TDM_TRACE_END();
 923
 924         private_display->current_module = NULL;
 925
 926         if (!strncmp(file, TDM_DUMMY_MODULE, TDM_NAME_LEN))
 927                 private_display->dummy_module = private_module;
 928
 929         private_module->bdata = bdata;
 930
 931         if (ret != TDM_ERROR_NONE) {
 932                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
 933                 goto failed_load;
 934         }
 935
 936         ret = _tdm_display_check_backend_functions(private_module);
 937         if (ret != TDM_ERROR_NONE) {
 938                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
 939                 goto failed_load;
 940         }
 941
 942         LIST_INITHEAD(&private_module->output_list);
 943         LIST_INITHEAD(&private_module->pp_list);
 944         LIST_INITHEAD(&private_module->capture_list);
 945
 946         LIST_ADDTAIL(&private_module->link, &private_display->module_list);
 947
 948         TDM_INFO("Success to load '%s' module", module_data->name);
 949
 950         return TDM_ERROR_NONE;
 951 failed_load:
 952         if (bdata)
 953                 module_data->deinit(bdata);
 954         if (module)
 955                 dlclose(module);
 956         if (private_module)
 957                 free(private_module);
 958         return ret;
 959 }
 960
 961 static tdm_error
 962 _tdm_display_load_modules(tdm_private_display *private_display)
 963 {
 964         const char *module_names;
 965         tdm_error ret = TDM_ERROR_NONE;
 966         char temp[TDM_PATH_LEN];
 967         char *arg;
 968         char *end;
 969
 970         LIST_INITHEAD(&private_display->module_list);
 971
 972         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
 973
 974         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
 975
 976         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
 977         while (arg) {
 978                 TDM_INFO("loading a %s backend", arg);
 979                 ret = _tdm_display_load_module_with_file(private_display, arg);
 980                 if (ret == TDM_ERROR_NONE)
 981                         TDM_INFO("%s backend loading success", arg);
 982                 else
 983                         TDM_INFO("%s backend loading failed", arg);
 984                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
 985         }
 986
 987         return ret;
 988 }
 989
 990 static void
 991 _tdm_display_unload_modules(tdm_private_display *private_display)
 992 {
 993         tdm_private_module *private_module = NULL, *bb = NULL;
 994
 995         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
 996                 LIST_DEL(&private_module->link);
 997
 998                 if (private_module->module_data)
 999                         private_module->module_data->deinit(private_module->bdata);
1000                 if (private_module->module)
1001                         dlclose(private_module->module);
1002
1003                 free(private_module);
1004         }
1005 }
1006 /* LCOV_EXCL_STOP */
1007
1008 INTERN void *
1009 tdm_display_find_stamp(tdm_private_display *private_display, double stamp)
1010 {
1011         return (void*)g_private_display;
1012 }
1013
1014 EXTERN tdm_display *
1015 tdm_display_init(tdm_error *error)
1016 {
1017         tdm_private_display *private_display = NULL;
1018         const char *str;
1019         tdm_error ret;
1020         double stamp1, stamp2, start;
1021         int mode;
1022
1023         pthread_mutex_lock(&gLock);
1024
1025         if (g_private_display) {
1026                 g_private_display->init_count++;
1027                 pthread_mutex_unlock(&gLock);
1028                 if (error)
1029                         *error = TDM_ERROR_NONE;
1030                 return g_private_display;
1031         }
1032
1033         start = stamp1 = tdm_helper_get_time();
1034
1035         stamp2 = tdm_helper_get_time();
1036         TDM_INFO("config init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1037         stamp1 = stamp2;
1038
1039         private_display = calloc(1, sizeof(tdm_private_display));
1040         if (!private_display) {
1041                 /* LCOV_EXCL_START */
1042                 ret = TDM_ERROR_OUT_OF_MEMORY;
1043                 TDM_ERR("'private_display != NULL' failed");
1044                 goto failed_alloc;
1045                 /* LCOV_EXCL_STOP */
1046         }
1047
1048         private_display->stamp = tdm_helper_get_time();
1049
1050         LIST_INITHEAD(&private_display->output_create_handler_list);
1051
1052         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
1053         if (str)
1054                 tdm_display_enable_debug_module(str);
1055
1056         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
1057         if (str)
1058                 tdm_display_enable_dump(private_display, str, NULL, NULL);
1059
1060         if (pthread_mutex_init(&private_display->lock, NULL)) {
1061                 /* LCOV_EXCL_START */
1062                 ret = TDM_ERROR_OPERATION_FAILED;
1063                 TDM_ERR("mutex init failed: %m");
1064                 goto failed_mutex_init;
1065                 /* LCOV_EXCL_STOP */
1066         }
1067
1068         _pthread_mutex_lock(&private_display->lock);
1069
1070         stamp2 = tdm_helper_get_time();
1071         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1072         stamp1 = stamp2;
1073
1074         ret = tdm_event_loop_init(private_display);
1075         if (ret != TDM_ERROR_NONE)
1076                 goto failed_event;
1077
1078         stamp2 = tdm_helper_get_time();
1079         TDM_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1080         stamp1 = stamp2;
1081
1082         ret = tdm_vblank_init(private_display);
1083         if (ret != TDM_ERROR_NONE)
1084                 goto failed_vblank;
1085
1086         ret = tdm_output_init(private_display);
1087         if (ret != TDM_ERROR_NONE)
1088                 goto failed_load;
1089
1090         ret = tdm_pp_init(private_display);
1091         if (ret != TDM_ERROR_NONE)
1092                 goto failed_load;
1093
1094         ret = tdm_capture_init(private_display);
1095         if (ret != TDM_ERROR_NONE)
1096                 goto failed_load;
1097
1098         ret = _tdm_display_load_modules(private_display);
1099         if (ret != TDM_ERROR_NONE)
1100                 goto failed_load;
1101
1102         stamp2 = tdm_helper_get_time();
1103         TDM_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1104         stamp1 = stamp2;
1105
1106 #ifdef INIT_BUFMGR
1107         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1108         if (tdm_drm_fd >= 0) {
1109                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1110                 close(tdm_drm_fd);
1111                 if (!private_display->bufmgr) {
1112                         TDM_ERR("tbm_bufmgr_init failed");
1113                         goto failed_update;
1114                 } else {
1115                         TDM_INFO("tbm_bufmgr_init successed");
1116                 }
1117
1118                 stamp2 = tdm_helper_get_time();
1119                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1120                 stamp1 = stamp2;
1121         }
1122 #endif
1123
1124         TDM_TRACE_BEGIN("TDM_Update_Display");
1125         ret = _tdm_display_setup(private_display);
1126         TDM_TRACE_END();
1127         if (ret != TDM_ERROR_NONE)
1128                 goto failed_update;
1129
1130         stamp2 = tdm_helper_get_time();
1131         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1132         stamp1 = stamp2;
1133
1134         tdm_event_loop_create_backend_source(private_display);
1135
1136         private_display->init_count = 1;
1137         g_private_display = private_display;
1138
1139         tdm_private_module *b = NULL;
1140         tdm_private_output *o = NULL;
1141         LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1142                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1143                         if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1144                                 tdm_output_need_validate_event_init(o);
1145                 }
1146         }
1147
1148         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1149          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1150          * this functionality can be turned off which means a default mode */
1151         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1152         if (mode > 0) {
1153                 tdm_private_module *b = NULL;
1154                 tdm_private_output *o = NULL;
1155
1156                 /* outputs which support hwc capability can work only
1157                  * if commit_per_vblank mode is '0' (default mode) */
1158                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1159                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1160                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1161                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1162                         }
1163                 }
1164         }
1165
1166         if (error)
1167                 *error = TDM_ERROR_NONE;
1168
1169         tdm_thread_cb_set_find_func(TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, tdm_display_find_stamp);
1170
1171         _pthread_mutex_unlock(&private_display->lock);
1172         pthread_mutex_unlock(&gLock);
1173
1174         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1175
1176         return (tdm_display *)private_display;
1177
1178 /* LCOV_EXCL_START */
1179 failed_update:
1180         _tdm_display_unload_modules(private_display);
1181 failed_load:
1182         tdm_vblank_deinit(private_display);
1183 failed_vblank:
1184         tdm_event_loop_stop(private_display);
1185         tdm_event_loop_deinit(private_display);
1186 failed_event:
1187         _pthread_mutex_unlock(&private_display->lock);
1188         pthread_mutex_destroy(&private_display->lock);
1189 failed_mutex_init:
1190         free(private_display);
1191 failed_alloc:
1192         if (error)
1193                 *error = ret;
1194         pthread_mutex_unlock(&gLock);
1195         return NULL;
1196 /* LCOV_EXCL_STOP */
1197 }
1198
1199 EXTERN void
1200 tdm_display_deinit(tdm_display *dpy)
1201 {
1202         tdm_private_display *private_display = dpy;
1203
1204         if (!private_display)
1205                 return;
1206
1207         pthread_mutex_lock(&gLock);
1208
1209         private_display->init_count--;
1210         if (private_display->init_count > 0) {
1211                 pthread_mutex_unlock(&gLock);
1212                 return;
1213         }
1214
1215         /* dont move the position of lock/unlock. all resource should be protected
1216          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1217          * things because it's finalized.
1218          */
1219         _pthread_mutex_lock(&private_display->lock);
1220         tdm_event_loop_stop(private_display);
1221         _pthread_mutex_unlock(&private_display->lock);
1222
1223         tdm_event_loop_deinit(private_display);
1224
1225         /* when private_output is destroyed, all vblank resources of client and server
1226          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1227          * we can unload backend modulues.
1228          */
1229         _tdm_display_destroy_private_display(private_display);
1230         _tdm_display_unload_modules(private_display);
1231
1232         tdm_vblank_deinit(private_display);
1233
1234 #ifdef INIT_BUFMGR
1235         if (private_display->bufmgr)
1236                 tbm_bufmgr_deinit(private_display->bufmgr);
1237 #endif
1238
1239         tbm_drm_helper_unset_tbm_master_fd();
1240
1241         pthread_mutex_destroy(&private_display->lock);
1242         free(private_display);
1243         g_private_display = NULL;
1244
1245         if (tdm_debug_dump_dir) {
1246                 free(tdm_debug_dump_dir);
1247                 tdm_debug_dump_dir = NULL;
1248         }
1249
1250         tdm_config_deinit();
1251
1252         pthread_mutex_unlock(&gLock);
1253
1254         TDM_INFO("done");
1255 }
1256
1257 INTERN tdm_private_display *
1258 tdm_display_get(void)
1259 {
1260         return g_private_display;
1261 }
1262