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