src/tdm.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <sc1.lim@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm_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                 if (func_output->output_set_status_handler) {
 439                         func_output->output_set_status_handler(private_output->output_backend,
 440                                                                                                    tdm_output_cb_status,
 441                                                                                                    private_output);
 442                         private_output->regist_change_cb = 1;
 443                 }
 444         }
 445
 446         /* need_new_caps will be true only in case of "disconnected -> connected" and "connected -> disconnected"
 447          * because we have to get new modes.
 448          */
 449         if (need_new_caps) {
 450                 _tdm_display_destroy_caps_output(&private_output->caps);
 451
 452                 ret = _tdm_display_update_caps_output(private_module, pipe, output_backend, &private_output->caps);
 453                 TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 454         }
 455
 456         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 457         if (ret != TDM_ERROR_NONE) {
 458                 free(layers);
 459                 return ret;
 460         }
 461
 462         for (i = 0; i < layer_count; i++) {
 463                 ret = _tdm_display_update_layer(private_output, layers[i], i);
 464                 if (ret != TDM_ERROR_NONE) {
 465                         free(layers);
 466                         return ret;
 467                 }
 468         }
 469
 470         free(layers);
 471
 472         return TDM_ERROR_NONE;
 473 }
 474
 475 static tdm_output **
 476 _tdm_display_set_main_first(tdm_output **outputs, int index)
 477 {
 478         tdm_output *output_tmp = NULL;
 479
 480         if (index == 0)
 481                 return outputs;
 482
 483         output_tmp = outputs[0];
 484         outputs[0] = outputs[index];
 485         outputs[index] = output_tmp;
 486
 487         return outputs;
 488 }
 489
 490 static tdm_output **
 491 _tdm_display_get_ordered_outputs(tdm_private_module *private_module, int *count)
 492 {
 493         tdm_func_display *func_display = &private_module->func_display;
 494         tdm_output **outputs = NULL;
 495         tdm_output **new_outputs = NULL;
 496         tdm_output *output_dsi = NULL;
 497         tdm_output *output_lvds = NULL;
 498         tdm_output *output_hdmia = NULL;
 499         tdm_output *output_hdmib = NULL;
 500         int i, output_count = 0, output_connected_count = 0;
 501         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 502         tdm_error ret;
 503
 504         /* don't change list order if not init time */
 505         if (private_module->outputs) {
 506                 TDM_ERR("can't change output order");
 507                 return private_module->outputs;
 508         }
 509
 510         outputs = func_display->display_get_outputs(private_module->bdata, &output_count, &ret);
 511         if (ret != TDM_ERROR_NONE)
 512                 goto failed_get_outputs;
 513
 514         *count = output_count;
 515
 516         if (output_count == 0)
 517                 goto failed_get_outputs;
 518         else if (output_count == 1) {
 519                 private_module->outputs = outputs;
 520                 return outputs;
 521         }
 522
 523         /* count connected outputs */
 524         for (i = 0; i < output_count; i++) {
 525                 tdm_func_output *func_output = &private_module->func_output;
 526                 tdm_caps_output caps;
 527                 memset(&caps, 0, sizeof(tdm_caps_output));
 528
 529                 if (!func_output->output_get_capability) {
 530                         TDM_ERR("no output_get_capability()");
 531                         goto failed_get_outputs;
 532                 }
 533
 534                 ret = func_output->output_get_capability(outputs[i], &caps);
 535                 if (ret != TDM_ERROR_NONE) {
 536                         TDM_ERR("output_get_capability() failed");
 537                         goto failed_get_outputs;
 538                 }
 539
 540                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 541                         output_connected_count++;
 542
 543                         switch (caps.type) {
 544                         case TDM_OUTPUT_TYPE_DSI:
 545                                 output_dsi = outputs[i];
 546                                 index_dsi = i;
 547                                 break;
 548                         case TDM_OUTPUT_TYPE_LVDS:
 549                                 output_lvds = outputs[i];
 550                                 index_lvds = i;
 551                                 break;
 552                         case TDM_OUTPUT_TYPE_HDMIA:
 553                                 output_hdmia = outputs[i];
 554                                 index_hdmia = i;
 555                                 break;
 556                         case TDM_OUTPUT_TYPE_HDMIB:
 557                                 output_hdmib = outputs[i];
 558                                 index_hdmib = i;
 559                                 break;
 560                         default:
 561                                 break;
 562                         }
 563                 }
 564
 565                 _tdm_display_destroy_caps_output(&caps);
 566         }
 567
 568         /* ordering : main output is first */
 569         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 570           * But hdmi is possible, so set hdmi to main display.
 571           * If connected only one output, it is main output.
 572           * If connected outputs over 2, has priority like below.
 573           * (dsi > lvds > hdmi > else)
 574           */
 575         if (output_connected_count == 0) {
 576                 /* hdmi > dsi > lvds > else */
 577                 if (output_hdmia != NULL)
 578                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 579                 else if (output_hdmib != NULL)
 580                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 581                 else if (output_dsi != NULL)
 582                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 583                 else if (output_lvds != NULL)
 584                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 585                 else
 586                         new_outputs = outputs;
 587         } else { /* (output_connected_count > 1) */
 588                 /* dsi > lvds > hdmi > else */
 589                 if (output_dsi != NULL)
 590                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 591                 else if (output_lvds != NULL)
 592                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 593                 else if (output_hdmia != NULL)
 594                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 595                 else if (output_hdmib != NULL)
 596                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 597                 else
 598                         new_outputs = outputs;
 599         }
 600
 601         private_module->outputs = new_outputs;
 602
 603         return new_outputs;
 604
 605 failed_get_outputs:
 606         free(outputs);
 607         *count = 0;
 608         return NULL;
 609 }
 610
 611 static tdm_error
 612 _tdm_display_update(tdm_private_display *private_display)
 613 {
 614         tdm_private_module *private_module = NULL;
 615         tdm_error ret = TDM_ERROR_NONE;
 616         int index = 0;
 617
 618         if (private_display->pp_module) {
 619                 ret = _tdm_display_update_caps_pp(private_display->pp_module,
 620                                                                                   &private_display->pp_module->caps_pp);
 621                 if (ret != TDM_ERROR_NONE)
 622                         goto failed_update;
 623         }
 624
 625         if (private_display->capture_module) {
 626                 ret = _tdm_display_update_caps_capture(private_display->capture_module,
 627                                                                                            &private_display->capture_module->caps_capture);
 628                 if (ret != TDM_ERROR_NONE)
 629                         goto failed_update;
 630         }
 631
 632         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 633                 tdm_output **outputs;
 634                 int output_count = 0, i;
 635
 636                 outputs = _tdm_display_get_ordered_outputs(private_module, &output_count);
 637                 if (!outputs)
 638                         goto failed_update;
 639
 640                 for (i = 0; i < output_count; i++) {
 641                         ret = tdm_display_update_output(private_module, outputs[i], index++, 1);
 642                         if (ret != TDM_ERROR_NONE)
 643                                 goto failed_update;
 644                 }
 645         }
 646
 647         return TDM_ERROR_NONE;
 648
 649 failed_update:
 650         _tdm_display_destroy_private_display(private_display);
 651         return ret;
 652 }
 653 /* LCOV_EXCL_STOP */
 654
 655 EXTERN tdm_error
 656 tdm_display_update(tdm_display *dpy)
 657 {
 658         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 659         TDM_RETURN_VAL_IF_FAIL(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER);
 660
 661         TDM_DEPRECATED(NULL);
 662
 663         return TDM_ERROR_NONE;
 664 }
 665
 666 int tdm_debug_module;
 667 int tdm_debug_dump;
 668 int tdm_ttrace_module;
 669 int tdm_ttrace_output;
 670
 671 static tdm_private_display *g_private_display;
 672 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 673
 674 /* LCOV_EXCL_START */
 675 static tdm_error
 676 _tdm_display_check_module(tdm_backend_module *module)
 677 {
 678         int major, minor;
 679
 680         TDM_INFO("TDM ABI version : %d.%d",
 681                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 682
 683         if (!module->name) {
 684                 TDM_ERR("TDM backend doesn't have name");
 685                 return TDM_ERROR_BAD_MODULE;
 686         }
 687
 688         if (!module->vendor) {
 689                 TDM_ERR("TDM backend doesn't have vendor");
 690                 return TDM_ERROR_BAD_MODULE;
 691         }
 692
 693         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 694         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 695
 696         TDM_INFO("TDM module name: %s", module->name);
 697         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 698         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 699
 700         if (major != TDM_MAJOR_VERSION) {
 701                 TDM_ERR("'%s' major version mismatch, %d != %d",
 702                                 module->name, major, TDM_MAJOR_VERSION);
 703                 return TDM_ERROR_BAD_MODULE;
 704         }
 705
 706         if (minor > TDM_MINOR_VERSION) {
 707                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 708                                 module->name, minor, TDM_MINOR_VERSION);
 709                 return TDM_ERROR_BAD_MODULE;
 710         }
 711
 712         if (!module->init) {
 713                 TDM_ERR("'%s' doesn't have init function", module->name);
 714                 return TDM_ERROR_BAD_MODULE;
 715         }
 716
 717         if (!module->deinit) {
 718                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 719                 return TDM_ERROR_BAD_MODULE;
 720         }
 721
 722         return TDM_ERROR_NONE;
 723 }
 724
 725 static tdm_error
 726 _tdm_display_check_backend_functions(tdm_private_module *private_module)
 727 {
 728         tdm_func_display *func_display = &private_module->func_display;
 729         tdm_func_output *func_output = &private_module->func_output;
 730         tdm_func_layer *func_layer = &private_module->func_layer;
 731         tdm_error ret;
 732
 733         /* below functions should be implemented in backend side */
 734
 735         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 736         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capability, TDM_ERROR_BAD_MODULE);
 737         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 738         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 739         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 740         TDM_RETURN_VAL_IF_FAIL(func_output->output_wait_vblank, TDM_ERROR_BAD_MODULE);
 741         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_vblank_handler, TDM_ERROR_BAD_MODULE);
 742         TDM_RETURN_VAL_IF_FAIL(func_output->output_commit, TDM_ERROR_BAD_MODULE);
 743         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_commit_handler, TDM_ERROR_BAD_MODULE);
 744         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_mode, TDM_ERROR_BAD_MODULE);
 745         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 746         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_info, TDM_ERROR_BAD_MODULE);
 747         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_info, TDM_ERROR_BAD_MODULE);
 748         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_buffer, TDM_ERROR_BAD_MODULE);
 749         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_unset_buffer, TDM_ERROR_BAD_MODULE);
 750
 751         ret = func_display->display_get_capability(private_module->bdata, &private_module->caps_display);
 752         if (ret != TDM_ERROR_NONE) {
 753                 TDM_ERR("display_get_capability() failed");
 754                 return TDM_ERROR_BAD_MODULE;
 755         }
 756
 757         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 758                 tdm_func_pp *func_pp = &private_module->func_pp;
 759                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 760                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 761                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 762                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 763                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 764         }
 765
 766         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 767                 tdm_func_capture *func_capture = &private_module->func_capture;
 768                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 769                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 770                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 771                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 772                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 773                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 774                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 775                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 776         }
 777
 778         return TDM_ERROR_NONE;
 779 }
 780
 781 static tdm_error
 782 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 783                                                                    const char *file)
 784 {
 785         char path[TDM_PATH_LEN] = {0,};
 786         void *module = NULL;
 787         tdm_backend_module *module_data;
 788         tdm_backend_data *bdata = NULL;
 789         tdm_private_module *private_module = NULL;
 790         tdm_error ret;
 791         double stamp;
 792         int size;
 793
 794         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 795         if (size >= (int)sizeof(path)) {
 796                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 797                 return TDM_ERROR_BAD_MODULE;
 798         };
 799
 800         private_module = calloc(1, sizeof *private_module);
 801         if (!private_module) {
 802                 TDM_ERR("alloc failed: %m");
 803                 ret = TDM_ERROR_OUT_OF_MEMORY;
 804                 goto failed_load;
 805         }
 806
 807         private_module->private_display = private_display;
 808
 809         stamp = tdm_helper_get_time();
 810
 811         TDM_TRACE_BEGIN("TDM_Load_Backend");
 812         module = dlopen(path, RTLD_LAZY);
 813         if (!module) {
 814                 TDM_ERR("failed to load module: %s(%s)", dlerror(), file);
 815                 TDM_TRACE_END();
 816                 ret = TDM_ERROR_BAD_MODULE;
 817                 goto failed_load;
 818         }
 819
 820         private_module->module = module;
 821
 822         module_data = dlsym(module, "tdm_backend_module_data");
 823         if (!module_data) {
 824                 TDM_ERR("'%s' doesn't have data object", file);
 825                 ret = TDM_ERROR_BAD_MODULE;
 826                 TDM_TRACE_END();
 827                 goto failed_load;
 828         }
 829         TDM_TRACE_END();
 830
 831         private_module->module_data = module_data;
 832
 833         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 834
 835         /* check if version, init() and deinit() are valid or not */
 836         ret = _tdm_display_check_module(module_data);
 837         if (ret != TDM_ERROR_NONE) {
 838                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
 839                 goto failed_load;
 840         }
 841
 842         private_display->current_module = private_module;
 843
 844         /* We don't care if backend_data is NULL or not. It's up to backend. */
 845         TDM_TRACE_BEGIN("TDM_Init_Backend");
 846         stamp = tdm_helper_get_time();
 847         bdata = module_data->init((tdm_display *)private_display, &ret);
 848         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 849         TDM_TRACE_END();
 850
 851         private_display->current_module = NULL;
 852
 853         private_module->bdata = bdata;
 854
 855         if (ret != TDM_ERROR_NONE) {
 856                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
 857                 goto failed_load;
 858         }
 859
 860         ret = _tdm_display_check_backend_functions(private_module);
 861         if (ret != TDM_ERROR_NONE) {
 862                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
 863                 goto failed_load;
 864         }
 865
 866         LIST_INITHEAD(&private_module->output_list);
 867         LIST_INITHEAD(&private_module->pp_list);
 868         LIST_INITHEAD(&private_module->capture_list);
 869
 870         LIST_ADDTAIL(&private_module->link, &private_display->module_list);
 871
 872         TDM_INFO("Success to load '%s' module", module_data->name);
 873
 874         return TDM_ERROR_NONE;
 875 failed_load:
 876         if (bdata)
 877                 module_data->deinit(bdata);
 878         if (module)
 879                 dlclose(module);
 880         if (private_module)
 881                 free(private_module);
 882         return ret;
 883 }
 884
 885 static tdm_error
 886 _tdm_display_load_modules(tdm_private_display *private_display)
 887 {
 888         const char *module_names;
 889         tdm_error ret = 0;
 890         char temp[TDM_PATH_LEN];
 891         char *arg;
 892         char *end;
 893
 894         LIST_INITHEAD(&private_display->module_list);
 895
 896         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
 897
 898         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
 899
 900         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
 901         while (arg) {
 902                 TDM_INFO("loading a %s backend", arg);
 903                 ret = _tdm_display_load_module_with_file(private_display, arg);
 904                 if (ret == TDM_ERROR_NONE)
 905                         TDM_INFO("%s backend loading success", arg);
 906                 else
 907                         TDM_INFO("%s backend loading failed", arg);
 908                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
 909         }
 910
 911         /* load bufmgr priv from dummy lib */
 912         if (LIST_IS_EMPTY(&private_display->module_list)) {
 913                 TDM_WRN("No backend. loading a %s backend", TDM_DUMMY_MODULE);
 914                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 915                 if (ret == TDM_ERROR_NONE)
 916                         TDM_INFO("%s backend loading success", TDM_DUMMY_MODULE);
 917                 else
 918                         TDM_INFO("%s backend loading failed", TDM_DUMMY_MODULE);
 919         }
 920
 921         return ret;
 922 }
 923
 924 static void
 925 _tdm_display_unload_modules(tdm_private_display *private_display)
 926 {
 927         tdm_private_module *private_module = NULL, *bb = NULL;
 928
 929         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
 930                 LIST_DEL(&private_module->link);
 931
 932                 if (private_module->module_data)
 933                         private_module->module_data->deinit(private_module->bdata);
 934                 if (private_module->module)
 935                         dlclose(private_module->module);
 936
 937                 free(private_module);
 938         }
 939 }
 940 /* LCOV_EXCL_STOP */
 941
 942 EXTERN tdm_display *
 943 tdm_display_init(tdm_error *error)
 944 {
 945         tdm_private_display *private_display = NULL;
 946         const char *str;
 947         tdm_error ret;
 948         double stamp1, stamp2, start;
 949         int mode;
 950
 951         pthread_mutex_lock(&gLock);
 952
 953         if (g_private_display) {
 954                 g_private_display->init_count++;
 955                 pthread_mutex_unlock(&gLock);
 956                 if (error)
 957                         *error = TDM_ERROR_NONE;
 958                 return g_private_display;
 959         }
 960
 961         start = stamp1 = tdm_helper_get_time();
 962
 963         stamp2 = tdm_helper_get_time();
 964         TDM_INFO("config init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 965         stamp1 = stamp2;
 966
 967         private_display = calloc(1, sizeof(tdm_private_display));
 968         if (!private_display) {
 969                 /* LCOV_EXCL_START */
 970                 ret = TDM_ERROR_OUT_OF_MEMORY;
 971                 TDM_ERR("'private_display != NULL' failed");
 972                 goto failed_alloc;
 973                 /* LCOV_EXCL_STOP */
 974         }
 975
 976         private_display->stamp = tdm_helper_get_time();
 977
 978         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
 979         if (str)
 980                 tdm_display_enable_debug_module(str);
 981
 982         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
 983         if (str)
 984                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 985
 986         if (pthread_mutex_init(&private_display->lock, NULL)) {
 987                 /* LCOV_EXCL_START */
 988                 ret = TDM_ERROR_OPERATION_FAILED;
 989                 TDM_ERR("mutex init failed: %m");
 990                 goto failed_mutex_init;
 991                 /* LCOV_EXCL_STOP */
 992         }
 993
 994         _pthread_mutex_lock(&private_display->lock);
 995
 996         stamp2 = tdm_helper_get_time();
 997         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 998         stamp1 = stamp2;
 999
1000         ret = tdm_event_loop_init(private_display);
1001         if (ret != TDM_ERROR_NONE)
1002                 goto failed_event;
1003
1004         stamp2 = tdm_helper_get_time();
1005         TDM_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1006         stamp1 = stamp2;
1007
1008         ret = tdm_vblank_init(private_display);
1009         if (ret != TDM_ERROR_NONE)
1010                 goto failed_vblank;
1011
1012         ret = tdm_output_init(private_display);
1013         if (ret != TDM_ERROR_NONE)
1014                 goto failed_load;
1015
1016         ret = tdm_pp_init(private_display);
1017         if (ret != TDM_ERROR_NONE)
1018                 goto failed_load;
1019
1020         ret = tdm_capture_init(private_display);
1021         if (ret != TDM_ERROR_NONE)
1022                 goto failed_load;
1023
1024         ret = _tdm_display_load_modules(private_display);
1025         if (ret != TDM_ERROR_NONE)
1026                 goto failed_load;
1027
1028         stamp2 = tdm_helper_get_time();
1029         TDM_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1030         stamp1 = stamp2;
1031
1032 #ifdef INIT_BUFMGR
1033         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1034         if (tdm_drm_fd >= 0) {
1035                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1036                 close(tdm_drm_fd);
1037                 if (!private_display->bufmgr) {
1038                         TDM_ERR("tbm_bufmgr_init failed");
1039                         goto failed_update;
1040                 } else {
1041                         TDM_INFO("tbm_bufmgr_init successed");
1042                 }
1043
1044                 stamp2 = tdm_helper_get_time();
1045                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1046                 stamp1 = stamp2;
1047         }
1048 #endif
1049
1050         TDM_TRACE_BEGIN("TDM_Update_Display");
1051         ret = _tdm_display_update(private_display);
1052         TDM_TRACE_END();
1053         if (ret != TDM_ERROR_NONE)
1054                 goto failed_update;
1055
1056         stamp2 = tdm_helper_get_time();
1057         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1058         stamp1 = stamp2;
1059
1060         tdm_event_loop_create_backend_source(private_display);
1061
1062         private_display->init_count = 1;
1063         g_private_display = private_display;
1064
1065         tdm_private_module *b = NULL;
1066         tdm_private_output *o = NULL;
1067         LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1068                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1069                         if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1070                                 tdm_output_need_validate_event_init(o);
1071                 }
1072         }
1073
1074         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1075          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1076          * this functionality can be turned off which means a default mode */
1077         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1078         if (mode > 0) {
1079                 tdm_private_module *b = NULL;
1080                 tdm_private_output *o = NULL;
1081
1082                 /* outputs which support hwc capability can work only
1083                  * if commit_per_vblank mode is '0' (default mode) */
1084                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1085                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1086                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1087                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1088                         }
1089                 }
1090         }
1091
1092         if (error)
1093                 *error = TDM_ERROR_NONE;
1094
1095         _pthread_mutex_unlock(&private_display->lock);
1096         pthread_mutex_unlock(&gLock);
1097
1098         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1099
1100         return (tdm_display *)private_display;
1101
1102 /* LCOV_EXCL_START */
1103 failed_update:
1104         _tdm_display_unload_modules(private_display);
1105 failed_load:
1106         tdm_vblank_deinit(private_display);
1107 failed_vblank:
1108         tdm_event_loop_stop(private_display);
1109         tdm_event_loop_deinit(private_display);
1110 failed_event:
1111         _pthread_mutex_unlock(&private_display->lock);
1112         pthread_mutex_destroy(&private_display->lock);
1113 failed_mutex_init:
1114         free(private_display);
1115 failed_alloc:
1116         if (error)
1117                 *error = ret;
1118         pthread_mutex_unlock(&gLock);
1119         return NULL;
1120 /* LCOV_EXCL_STOP */
1121 }
1122
1123 EXTERN void
1124 tdm_display_deinit(tdm_display *dpy)
1125 {
1126         tdm_private_display *private_display = dpy;
1127
1128         if (!private_display)
1129                 return;
1130
1131         TDM_RETURN_IF_FAIL(tdm_display_is_valid(dpy));
1132
1133         pthread_mutex_lock(&gLock);
1134
1135         private_display->init_count--;
1136         if (private_display->init_count > 0) {
1137                 pthread_mutex_unlock(&gLock);
1138                 return;
1139         }
1140
1141         /* dont move the position of lock/unlock. all resource should be protected
1142          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1143          * things because it's finalized.
1144          */
1145         _pthread_mutex_lock(&private_display->lock);
1146         tdm_event_loop_stop(private_display);
1147         _pthread_mutex_unlock(&private_display->lock);
1148
1149         tdm_event_loop_deinit(private_display);
1150
1151         /* when private_output is destroyed, all vblank resources of client and server
1152          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1153          * we can unload backend modulues.
1154          */
1155         _tdm_display_destroy_private_display(private_display);
1156         _tdm_display_unload_modules(private_display);
1157
1158         tdm_vblank_deinit(private_display);
1159
1160 #ifdef INIT_BUFMGR
1161         if (private_display->bufmgr)
1162                 tbm_bufmgr_deinit(private_display->bufmgr);
1163 #endif
1164
1165         tbm_drm_helper_unset_tbm_master_fd();
1166
1167         pthread_mutex_destroy(&private_display->lock);
1168         free(private_display);
1169         g_private_display = NULL;
1170
1171         if (tdm_debug_dump_dir) {
1172                 free(tdm_debug_dump_dir);
1173                 tdm_debug_dump_dir = NULL;
1174         }
1175
1176         tdm_config_deinit();
1177
1178         pthread_mutex_unlock(&gLock);
1179
1180         TDM_INFO("done");
1181 }
1182
1183 INTERN tdm_private_display *
1184 tdm_display_get(void)
1185 {
1186         return g_private_display;
1187 }
1188
1189 INTERN int
1190 tdm_display_is_valid(tdm_display *dpy)
1191 {
1192         if (dpy != NULL && dpy == g_private_display)
1193                 return 1;
1194         return 0;
1195 }
1196
1197 INTERN int
1198 tdm_output_is_valid(tdm_output *output)
1199 {
1200         tdm_private_module *b = NULL;
1201         tdm_private_output *o = NULL;
1202
1203         if (!output || !g_private_display)
1204                 return 0;
1205
1206         LIST_FOR_EACH_ENTRY(b, &g_private_display->module_list, link) {
1207                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link)
1208                         if (o == output)
1209                                 return 1;
1210         }
1211
1212         return 0;
1213 }
1214
1215 /* LCOV_EXCL_START */
1216 INTERN int
1217 tdm_module_check_abi(tdm_private_module *private_module, int abimaj, int abimin)
1218 {
1219         tdm_backend_module *module = private_module->module_data;
1220
1221         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1222                 return 0;
1223
1224         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1225                 return 0;
1226
1227         return 1;
1228 }
1229
1230 INTERN tdm_error
1231 tdm_display_enable_debug_module(const char*modules)
1232 {
1233         char temp[TDM_PATH_LEN];
1234         char *arg;
1235         char *end;
1236
1237         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1238
1239         tdm_debug_module = 0;
1240
1241         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1242         while (arg) {
1243                 if (!strncmp(arg, "none", 4)) {
1244                         tdm_debug_module = 0;
1245                         return TDM_ERROR_NONE;
1246                 }
1247                 if (!strncmp(arg, "all", 3)) {
1248                         tdm_debug_module = 0xFFFFFFFF;
1249                         return TDM_ERROR_NONE;
1250                 }
1251                 if (!strncmp(arg, "buffer", 6))
1252                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1253                 else if (!strncmp(arg, "event", 5))
1254                         tdm_debug_module |= TDM_DEBUG_EVENT;
1255                 else if (!strncmp(arg, "thread", 6))
1256                         tdm_debug_module |= TDM_DEBUG_THREAD;
1257                 else if (!strncmp(arg, "mutex", 5))
1258                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1259                 else if (!strncmp(arg, "vblank", 6))
1260                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1261                 else if (!strncmp(arg, "commit", 6))
1262                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1263
1264                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1265         }
1266
1267         TDM_INFO("module debugging... '%s'", modules);
1268
1269         return TDM_ERROR_NONE;
1270 }
1271
1272 INTERN tdm_error
1273 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1274 {
1275         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1276         char *path = NULL, *path2;
1277         char *arg;
1278         char *end;
1279
1280         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1281         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1282         if (!path2 || path2[0] == '\0')
1283                 path2 = TDM_DUMP_DIR;
1284         else
1285                 path2++;
1286
1287         tdm_debug_dump = 0;
1288
1289         snprintf(temp, sizeof(temp), "%s", dump_str);
1290         arg = strtok_r(temp, ",", &end);
1291         TDM_GOTO_IF_FAIL(arg != NULL, done);
1292
1293         if (!strncmp(arg, "none", 4)) {
1294                 tdm_debug_dump = 0;
1295                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1296                 if (tdm_debug_dump_dir) {
1297                         free(tdm_debug_dump_dir);
1298                         tdm_debug_dump_dir = NULL;
1299                 }
1300                 goto done;
1301         }
1302
1303         path = tdm_helper_dump_make_directory(path2, reply, len);
1304         TDM_GOTO_IF_FAIL(path != NULL, done);
1305
1306         if (!strncmp(arg, "current", 7)) {
1307                 tdm_private_module *b = NULL;
1308                 tdm_private_output *o = NULL;
1309
1310                 if (!private_display) {
1311                         TDM_WRN("no private_display");
1312                         goto done;
1313                 }
1314
1315                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1316                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1317                                 tdm_private_layer *l = NULL;
1318                                 LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1319                                         char str[TDM_PATH_LEN];
1320                                         if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1321                                                 continue;
1322                                         if (!l->showing_buffer)
1323                                                 continue;
1324                                         snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1325                                         tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1326                                 }
1327                         }
1328                 }
1329
1330                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1331                 goto done;
1332         }
1333
1334         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1335
1336         while (arg) {
1337                 if (!strncmp(arg, "all", 3)) {
1338                         tdm_debug_dump = 0xFFFFFFFF;
1339                         goto done;
1340                 } else if (!strncmp(arg, "layer", 5)) {
1341                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1342                 } else if (!strncmp(arg, "pp", 2)) {
1343                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1344                 } else if (!strncmp(arg, "capture", 7)) {
1345                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1346                 } else if (!strncmp(arg, "window", 6)) {
1347                         tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
1348                 } else
1349                         goto done;
1350
1351                 arg = strtok_r(NULL, ",", &end);
1352         }
1353
1354         if (tdm_debug_dump_dir)
1355                 free(tdm_debug_dump_dir);
1356
1357         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1358
1359         TDM_INFO("dump... '%s'", dump_str);
1360
1361 done:
1362         if (path)
1363                 free(path);
1364
1365         return TDM_ERROR_NONE;
1366 }
1367
1368 static void
1369 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1370                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1371 {
1372         tdm_error ret = TDM_ERROR_NONE;
1373
1374         TDM_TRACE_MARK("VSYNC");
1375
1376         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1377         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1378 }
1379
1380 INTERN tdm_error
1381 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1382 {
1383         tdm_private_display *private_display = dpy;
1384         tdm_private_module *private_module = NULL;
1385         tdm_private_output *private_output = NULL;
1386         const tdm_output_mode *mode = NULL;
1387         tdm_vblank *vblank = NULL;
1388         tdm_error ret = TDM_ERROR_NONE;
1389
1390         if (!enable) {
1391                 LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
1392                         LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
1393                                 if (private_output->ttrace_vblank)
1394                                         tdm_vblank_destroy(private_output->ttrace_vblank);
1395                                 private_output->ttrace_vblank = NULL;
1396                         }
1397                 }
1398                 return TDM_ERROR_NONE;
1399         }
1400
1401         private_output = output;
1402         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1403
1404         if (private_output->ttrace_vblank)
1405                 return TDM_ERROR_NONE;
1406
1407         vblank = tdm_vblank_create(private_display, output, &ret);
1408         TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1409
1410         ret = tdm_output_get_mode(output, &mode);
1411         TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1412
1413         ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1414         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1415
1416         ret = tdm_vblank_set_enable_fake(vblank, 1);
1417         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1418
1419         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1420         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1421
1422         private_output->ttrace_vblank = vblank;
1423
1424         return TDM_ERROR_NONE;
1425
1426 enable_fail:
1427         if (vblank)
1428                 tdm_vblank_destroy(vblank);
1429
1430         return ret;
1431 }
1432
1433 INTERN tdm_error
1434 tdm_display_enable_ttrace(tdm_private_display *private_display, const char *ttrace, int output_id, char *reply, int *len)
1435 {
1436         char temp[TDM_PATH_LEN];
1437         char *arg;
1438         char *end;
1439         tdm_output *output;
1440         tdm_error ret;
1441         tdm_output_type type;
1442
1443         snprintf(temp, TDM_PATH_LEN, "%s", ttrace);
1444
1445         tdm_ttrace_output = output_id;
1446         tdm_ttrace_module = 0;
1447
1448         output = tdm_display_get_output(private_display, output_id, &ret);
1449         if (!output) {
1450                 TDM_SNPRINTF(reply, len, "can't find the output_id(%d)\n", output_id);
1451                 return ret;
1452         }
1453
1454         ret = tdm_output_get_output_type(output, &type);
1455         if (ret != TDM_ERROR_NONE) {
1456                 TDM_SNPRINTF(reply, len, "can't find the type of output_id(%d)\n", output_id);
1457                 return ret;
1458         }
1459
1460         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1461         while (arg) {
1462                 if (!strncmp(arg, "none", 4))
1463                         tdm_ttrace_module = 0;
1464                 else if (!strncmp(arg, "all", 3))
1465                         tdm_ttrace_module = 0xFFFFFFFF;
1466                 else if (!strncmp(arg, "vsync", 5))
1467                         tdm_ttrace_module |= TDM_TTRACE_VSYNC;
1468                 else if (!strncmp(arg, "client_vblank", 13))
1469                         tdm_ttrace_module |= TDM_TTRACE_CLIENT_VBLANK;
1470                 else if (!strncmp(arg, "server_vblank", 13))
1471                         tdm_ttrace_module |= TDM_TTRACE_SERVER_VBLANK;
1472                 else if (!strncmp(arg, "vblank", 6))
1473                         tdm_ttrace_module |= TDM_TTRACE_VBLANK;
1474                 else if (!strncmp(arg, "layer", 5))
1475                         tdm_ttrace_module |= TDM_TTRACE_LAYER;
1476                 else if (!strncmp(arg, "pp", 2))
1477                         tdm_ttrace_module |= TDM_TTRACE_PP;
1478                 else if (!strncmp(arg, "capture", 7))
1479                         tdm_ttrace_module |= TDM_TTRACE_CAPTURE;
1480                 else  {
1481                         tdm_ttrace_module = 0;
1482                         tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1483                         tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1484                         TDM_SNPRINTF(reply, len, "unknown option: '%s'\n", arg);
1485                         return TDM_ERROR_NONE;
1486                 }
1487
1488                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1489         }
1490
1491         TDM_SNPRINTF(reply, len, "ttrace debugging... '%s' %x\n", ttrace, tdm_ttrace_module);
1492
1493         if (tdm_ttrace_module & TDM_TTRACE_VSYNC)
1494                 tdm_display_enable_ttrace_vblank(private_display, output, 1);
1495         else
1496                 tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1497
1498         if (tdm_ttrace_module & TDM_TTRACE_CLIENT_VBLANK)
1499                 tdm_server_enable_ttrace_client_vblank(private_display, output, 1);
1500         else
1501                 tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1502
1503         return TDM_ERROR_NONE;
1504 }
1505
1506 INTERN tdm_error
1507 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1508 {
1509         private_display->print_fps = enable;
1510
1511         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1512
1513         return TDM_ERROR_NONE;
1514 }
1515 /* LCOV_EXCL_STOP */