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 major, minor;
 749
 750         TDM_INFO("TDM ABI version : %d.%d",
 751                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 752
 753         if (!module->name) {
 754                 TDM_ERR("TDM backend doesn't have name");
 755                 return TDM_ERROR_BAD_MODULE;
 756         }
 757
 758         if (!module->vendor) {
 759                 TDM_ERR("TDM backend doesn't have vendor");
 760                 return TDM_ERROR_BAD_MODULE;
 761         }
 762
 763         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 764         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 765
 766         TDM_INFO("TDM module name: %s", module->name);
 767         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 768         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 769
 770         if (major != TDM_MAJOR_VERSION) {
 771                 TDM_ERR("'%s' major version mismatch, %d != %d",
 772                                 module->name, major, TDM_MAJOR_VERSION);
 773                 return TDM_ERROR_BAD_MODULE;
 774         }
 775
 776         if (minor > TDM_MINOR_VERSION) {
 777                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 778                                 module->name, minor, TDM_MINOR_VERSION);
 779                 return TDM_ERROR_BAD_MODULE;
 780         }
 781
 782         if (!module->init) {
 783                 TDM_ERR("'%s' doesn't have init function", module->name);
 784                 return TDM_ERROR_BAD_MODULE;
 785         }
 786
 787         if (!module->deinit) {
 788                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 789                 return TDM_ERROR_BAD_MODULE;
 790         }
 791
 792         return TDM_ERROR_NONE;
 793 }
 794
 795 static tdm_error
 796 _tdm_display_check_backend_functions(tdm_private_module *private_module)
 797 {
 798         tdm_func_display *func_display = &private_module->func_display;
 799         tdm_func_output *func_output = &private_module->func_output;
 800         tdm_func_layer *func_layer = &private_module->func_layer;
 801         tdm_error ret;
 802
 803         /* below functions should be implemented in backend side */
 804
 805         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 806         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capability, TDM_ERROR_BAD_MODULE);
 807         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 808         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 809         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 810         TDM_RETURN_VAL_IF_FAIL(func_output->output_wait_vblank, TDM_ERROR_BAD_MODULE);
 811         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_vblank_handler, TDM_ERROR_BAD_MODULE);
 812         TDM_RETURN_VAL_IF_FAIL(func_output->output_commit, TDM_ERROR_BAD_MODULE);
 813         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_commit_handler, TDM_ERROR_BAD_MODULE);
 814         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_mode, TDM_ERROR_BAD_MODULE);
 815         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 816         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_info, TDM_ERROR_BAD_MODULE);
 817         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_info, TDM_ERROR_BAD_MODULE);
 818         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_buffer, TDM_ERROR_BAD_MODULE);
 819         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_unset_buffer, TDM_ERROR_BAD_MODULE);
 820
 821         ret = func_display->display_get_capability(private_module->bdata, &private_module->caps_display);
 822         if (ret != TDM_ERROR_NONE) {
 823                 TDM_ERR("display_get_capability() failed");
 824                 return TDM_ERROR_BAD_MODULE;
 825         }
 826
 827         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 828                 tdm_func_pp *func_pp = &private_module->func_pp;
 829                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 830                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 831                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 832                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 833                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 834         }
 835
 836         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 837                 tdm_func_capture *func_capture = &private_module->func_capture;
 838                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 839                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 840                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 841                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 842                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 843                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 844                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 845                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 846         }
 847
 848         return TDM_ERROR_NONE;
 849 }
 850
 851 static tdm_error
 852 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 853                                                                    const char *file)
 854 {
 855         char path[TDM_PATH_LEN] = {0,};
 856         void *module = NULL;
 857         tdm_backend_module *module_data;
 858         tdm_backend_data *bdata = NULL;
 859         tdm_private_module *private_module = NULL;
 860         tdm_error ret;
 861         double stamp;
 862         int size;
 863
 864         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 865         if (size >= (int)sizeof(path)) {
 866                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 867                 return TDM_ERROR_BAD_MODULE;
 868         };
 869
 870         private_module = calloc(1, sizeof *private_module);
 871         if (!private_module) {
 872                 TDM_ERR("alloc failed: %m");
 873                 ret = TDM_ERROR_OUT_OF_MEMORY;
 874                 goto failed_load;
 875         }
 876
 877         private_module->private_display = private_display;
 878
 879         stamp = tdm_helper_get_time();
 880
 881         TDM_TRACE_BEGIN("TDM_Load_Backend");
 882         module = dlopen(path, RTLD_LAZY);
 883         if (!module) {
 884                 TDM_ERR("%s", dlerror());
 885                 TDM_TRACE_END();
 886                 ret = TDM_ERROR_BAD_MODULE;
 887                 goto failed_load;
 888         }
 889
 890         private_module->module = module;
 891
 892         module_data = dlsym(module, "tdm_backend_module_data");
 893         if (!module_data) {
 894                 TDM_ERR("'%s' doesn't have data object", file);
 895                 ret = TDM_ERROR_BAD_MODULE;
 896                 TDM_TRACE_END();
 897                 goto failed_load;
 898         }
 899         TDM_TRACE_END();
 900
 901         private_module->module_data = module_data;
 902
 903         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 904
 905         /* check if version, init() and deinit() are valid or not */
 906         ret = _tdm_display_check_module(module_data);
 907         if (ret != TDM_ERROR_NONE) {
 908                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
 909                 goto failed_load;
 910         }
 911
 912         private_display->current_module = private_module;
 913
 914         /* We don't care if backend_data is NULL or not. It's up to backend. */
 915         TDM_TRACE_BEGIN("TDM_Init_Backend");
 916         stamp = tdm_helper_get_time();
 917         bdata = module_data->init((tdm_display *)private_display, &ret);
 918         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 919         TDM_TRACE_END();
 920
 921         private_display->current_module = NULL;
 922
 923         private_module->bdata = bdata;
 924
 925         if (ret != TDM_ERROR_NONE) {
 926                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
 927                 goto failed_load;
 928         }
 929
 930         ret = _tdm_display_check_backend_functions(private_module);
 931         if (ret != TDM_ERROR_NONE) {
 932                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
 933                 goto failed_load;
 934         }
 935
 936         LIST_INITHEAD(&private_module->output_list);
 937         LIST_INITHEAD(&private_module->pp_list);
 938         LIST_INITHEAD(&private_module->capture_list);
 939
 940         LIST_ADDTAIL(&private_module->link, &private_display->module_list);
 941
 942         TDM_INFO("Success to load '%s' module", module_data->name);
 943
 944         return TDM_ERROR_NONE;
 945 failed_load:
 946         if (bdata)
 947                 module_data->deinit(bdata);
 948         if (module)
 949                 dlclose(module);
 950         if (private_module)
 951                 free(private_module);
 952         return ret;
 953 }
 954
 955 static tdm_error
 956 _tdm_display_load_modules(tdm_private_display *private_display)
 957 {
 958         const char *module_names;
 959         tdm_error ret = TDM_ERROR_NONE;
 960         char temp[TDM_PATH_LEN];
 961         char *arg;
 962         char *end;
 963
 964         LIST_INITHEAD(&private_display->module_list);
 965
 966         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
 967
 968         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
 969
 970         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
 971         while (arg) {
 972                 TDM_INFO("loading a %s backend", arg);
 973                 ret = _tdm_display_load_module_with_file(private_display, arg);
 974                 if (ret == TDM_ERROR_NONE)
 975                         TDM_INFO("%s backend loading success", arg);
 976                 else
 977                         TDM_INFO("%s backend loading failed", arg);
 978                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
 979         }
 980
 981         /* load bufmgr priv from dummy lib */
 982         if (LIST_IS_EMPTY(&private_display->module_list)) {
 983                 TDM_WRN("No backend. loading a %s backend", TDM_DUMMY_MODULE);
 984                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 985                 if (ret == TDM_ERROR_NONE)
 986                         TDM_INFO("%s backend loading success", TDM_DUMMY_MODULE);
 987                 else
 988                         TDM_INFO("%s backend loading failed", TDM_DUMMY_MODULE);
 989         }
 990
 991         return ret;
 992 }
 993
 994 static void
 995 _tdm_display_unload_modules(tdm_private_display *private_display)
 996 {
 997         tdm_private_module *private_module = NULL, *bb = NULL;
 998
 999         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
1000                 LIST_DEL(&private_module->link);
1001
1002                 if (private_module->module_data)
1003                         private_module->module_data->deinit(private_module->bdata);
1004                 if (private_module->module)
1005                         dlclose(private_module->module);
1006
1007                 free(private_module);
1008         }
1009 }
1010 /* LCOV_EXCL_STOP */
1011
1012 EXTERN tdm_display *
1013 tdm_display_init(tdm_error *error)
1014 {
1015         tdm_private_display *private_display = NULL;
1016         const char *str;
1017         tdm_error ret;
1018         double stamp1, stamp2, start;
1019         int mode;
1020
1021         pthread_mutex_lock(&gLock);
1022
1023         if (g_private_display) {
1024                 g_private_display->init_count++;
1025                 pthread_mutex_unlock(&gLock);
1026                 if (error)
1027                         *error = TDM_ERROR_NONE;
1028                 return g_private_display;
1029         }
1030
1031         start = stamp1 = tdm_helper_get_time();
1032
1033         stamp2 = tdm_helper_get_time();
1034         TDM_INFO("config init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1035         stamp1 = stamp2;
1036
1037         private_display = calloc(1, sizeof(tdm_private_display));
1038         if (!private_display) {
1039                 /* LCOV_EXCL_START */
1040                 ret = TDM_ERROR_OUT_OF_MEMORY;
1041                 TDM_ERR("'private_display != NULL' failed");
1042                 goto failed_alloc;
1043                 /* LCOV_EXCL_STOP */
1044         }
1045
1046         private_display->stamp = tdm_helper_get_time();
1047
1048         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
1049         if (str)
1050                 tdm_display_enable_debug_module(str);
1051
1052         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
1053         if (str)
1054                 tdm_display_enable_dump(private_display, str, NULL, NULL);
1055
1056         if (pthread_mutex_init(&private_display->lock, NULL)) {
1057                 /* LCOV_EXCL_START */
1058                 ret = TDM_ERROR_OPERATION_FAILED;
1059                 TDM_ERR("mutex init failed: %m");
1060                 goto failed_mutex_init;
1061                 /* LCOV_EXCL_STOP */
1062         }
1063
1064         _pthread_mutex_lock(&private_display->lock);
1065
1066         stamp2 = tdm_helper_get_time();
1067         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1068         stamp1 = stamp2;
1069
1070         ret = tdm_event_loop_init(private_display);
1071         if (ret != TDM_ERROR_NONE)
1072                 goto failed_event;
1073
1074         stamp2 = tdm_helper_get_time();
1075         TDM_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1076         stamp1 = stamp2;
1077
1078         ret = tdm_vblank_init(private_display);
1079         if (ret != TDM_ERROR_NONE)
1080                 goto failed_vblank;
1081
1082         ret = tdm_output_init(private_display);
1083         if (ret != TDM_ERROR_NONE)
1084                 goto failed_load;
1085
1086         ret = tdm_hwc_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         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1140          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1141          * this functionality can be turned off which means a default mode */
1142         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1143         if (mode > 0) {
1144                 tdm_private_module *b = NULL;
1145                 tdm_private_output *o = NULL;
1146
1147                 /* outputs which support hwc capability can work only
1148                  * if commit_per_vblank mode is '0' (default mode) */
1149                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1150                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1151                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1152                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1153                         }
1154                 }
1155         }
1156
1157         if (error)
1158                 *error = TDM_ERROR_NONE;
1159
1160         _pthread_mutex_unlock(&private_display->lock);
1161         pthread_mutex_unlock(&gLock);
1162
1163         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1164
1165         return (tdm_display *)private_display;
1166
1167 /* LCOV_EXCL_START */
1168 failed_update:
1169         _tdm_display_unload_modules(private_display);
1170 failed_load:
1171         tdm_vblank_deinit(private_display);
1172 failed_vblank:
1173         tdm_event_loop_stop(private_display);
1174         tdm_event_loop_deinit(private_display);
1175 failed_event:
1176         _pthread_mutex_unlock(&private_display->lock);
1177         pthread_mutex_destroy(&private_display->lock);
1178 failed_mutex_init:
1179         free(private_display);
1180 failed_alloc:
1181         if (error)
1182                 *error = ret;
1183         pthread_mutex_unlock(&gLock);
1184         return NULL;
1185 /* LCOV_EXCL_STOP */
1186 }
1187
1188 EXTERN void
1189 tdm_display_deinit(tdm_display *dpy)
1190 {
1191         tdm_private_display *private_display = dpy;
1192
1193         if (!private_display)
1194                 return;
1195
1196         pthread_mutex_lock(&gLock);
1197
1198         private_display->init_count--;
1199         if (private_display->init_count > 0) {
1200                 pthread_mutex_unlock(&gLock);
1201                 return;
1202         }
1203
1204         /* dont move the position of lock/unlock. all resource should be protected
1205          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1206          * things because it's finalized.
1207          */
1208         _pthread_mutex_lock(&private_display->lock);
1209         tdm_event_loop_stop(private_display);
1210         _pthread_mutex_unlock(&private_display->lock);
1211
1212         tdm_event_loop_deinit(private_display);
1213
1214         /* when private_output is destroyed, all vblank resources of client and server
1215          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1216          * we can unload backend modulues.
1217          */
1218         _tdm_display_destroy_private_display(private_display);
1219         _tdm_display_unload_modules(private_display);
1220
1221         tdm_vblank_deinit(private_display);
1222
1223 #ifdef INIT_BUFMGR
1224         if (private_display->bufmgr)
1225                 tbm_bufmgr_deinit(private_display->bufmgr);
1226 #endif
1227
1228         tbm_drm_helper_unset_tbm_master_fd();
1229
1230         pthread_mutex_destroy(&private_display->lock);
1231         free(private_display);
1232         g_private_display = NULL;
1233
1234         if (tdm_debug_dump_dir) {
1235                 free(tdm_debug_dump_dir);
1236                 tdm_debug_dump_dir = NULL;
1237         }
1238
1239         tdm_config_deinit();
1240
1241         pthread_mutex_unlock(&gLock);
1242
1243         TDM_INFO("done");
1244 }
1245
1246 INTERN tdm_private_display *
1247 tdm_display_get(void)
1248 {
1249         return g_private_display;
1250 }
1251