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
 458         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 459         if (ret != TDM_ERROR_NONE) {
 460                 free(layers);
 461                 return ret;
 462         }
 463
 464         for (i = 0; i < layer_count; i++) {
 465                 ret = _tdm_display_update_layer(private_output, layers[i], i);
 466                 if (ret != TDM_ERROR_NONE) {
 467                         free(layers);
 468                         return ret;
 469                 }
 470         }
 471
 472         free(layers);
 473
 474         return TDM_ERROR_NONE;
 475 }
 476
 477 static tdm_output **
 478 _tdm_display_set_main_first(tdm_output **outputs, int index)
 479 {
 480         tdm_output *output_tmp = NULL;
 481
 482         if (index == 0)
 483                 return outputs;
 484
 485         output_tmp = outputs[0];
 486         outputs[0] = outputs[index];
 487         outputs[index] = output_tmp;
 488
 489         return outputs;
 490 }
 491
 492 static tdm_output **
 493 _tdm_display_get_ordered_outputs(tdm_private_module *private_module, int *count)
 494 {
 495         tdm_func_display *func_display = &private_module->func_display;
 496         tdm_output **outputs = NULL;
 497         tdm_output **new_outputs = NULL;
 498         tdm_output *output_dsi = NULL;
 499         tdm_output *output_lvds = NULL;
 500         tdm_output *output_hdmia = NULL;
 501         tdm_output *output_hdmib = NULL;
 502         int i, output_count = 0, output_connected_count = 0;
 503         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 504         tdm_error ret;
 505
 506         /* don't change list order if not init time */
 507         if (private_module->outputs) {
 508                 TDM_ERR("can't change output order");
 509                 return private_module->outputs;
 510         }
 511
 512         outputs = func_display->display_get_outputs(private_module->bdata, &output_count, &ret);
 513         if (ret != TDM_ERROR_NONE)
 514                 goto failed_get_outputs;
 515
 516         *count = output_count;
 517
 518         if (output_count == 0)
 519                 goto failed_get_outputs;
 520         else if (output_count == 1) {
 521                 private_module->outputs = outputs;
 522                 return outputs;
 523         }
 524
 525         /* count connected outputs */
 526         for (i = 0; i < output_count; i++) {
 527                 tdm_func_output *func_output = &private_module->func_output;
 528                 tdm_caps_output caps;
 529                 memset(&caps, 0, sizeof(tdm_caps_output));
 530
 531                 if (!func_output->output_get_capability) {
 532                         TDM_ERR("no output_get_capability()");
 533                         goto failed_get_outputs;
 534                 }
 535
 536                 ret = func_output->output_get_capability(outputs[i], &caps);
 537                 if (ret != TDM_ERROR_NONE) {
 538                         TDM_ERR("output_get_capability() failed");
 539                         goto failed_get_outputs;
 540                 }
 541
 542                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 543                         output_connected_count++;
 544
 545                         switch (caps.type) {
 546                         case TDM_OUTPUT_TYPE_DSI:
 547                                 output_dsi = outputs[i];
 548                                 index_dsi = i;
 549                                 break;
 550                         case TDM_OUTPUT_TYPE_LVDS:
 551                                 output_lvds = outputs[i];
 552                                 index_lvds = i;
 553                                 break;
 554                         case TDM_OUTPUT_TYPE_HDMIA:
 555                                 output_hdmia = outputs[i];
 556                                 index_hdmia = i;
 557                                 break;
 558                         case TDM_OUTPUT_TYPE_HDMIB:
 559                                 output_hdmib = outputs[i];
 560                                 index_hdmib = i;
 561                                 break;
 562                         default:
 563                                 break;
 564                         }
 565                 }
 566
 567                 _tdm_display_destroy_caps_output(&caps);
 568         }
 569
 570         /* ordering : main output is first */
 571         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 572           * But hdmi is possible, so set hdmi to main display.
 573           * If connected only one output, it is main output.
 574           * If connected outputs over 2, has priority like below.
 575           * (dsi > lvds > hdmi > else)
 576           */
 577         if (output_connected_count == 0) {
 578                 /* hdmi > dsi > lvds > else */
 579                 if (output_hdmia != NULL)
 580                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 581                 else if (output_hdmib != NULL)
 582                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 583                 else if (output_dsi != NULL)
 584                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 585                 else if (output_lvds != NULL)
 586                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 587                 else
 588                         new_outputs = outputs;
 589         } else { /* (output_connected_count > 1) */
 590                 /* dsi > lvds > hdmi > else */
 591                 if (output_dsi != NULL)
 592                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 593                 else if (output_lvds != NULL)
 594                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 595                 else if (output_hdmia != NULL)
 596                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 597                 else if (output_hdmib != NULL)
 598                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 599                 else
 600                         new_outputs = outputs;
 601         }
 602
 603         private_module->outputs = new_outputs;
 604
 605         return new_outputs;
 606
 607 failed_get_outputs:
 608         free(outputs);
 609         *count = 0;
 610         return NULL;
 611 }
 612
 613 static tdm_error
 614 _tdm_display_update(tdm_private_display *private_display)
 615 {
 616         tdm_private_module *private_module = NULL;
 617         tdm_error ret = TDM_ERROR_NONE;
 618         int index = 0;
 619
 620         if (private_display->pp_module) {
 621                 ret = _tdm_display_update_caps_pp(private_display->pp_module,
 622                                                                                   &private_display->pp_module->caps_pp);
 623                 if (ret != TDM_ERROR_NONE)
 624                         goto failed_update;
 625         }
 626
 627         if (private_display->capture_module) {
 628                 ret = _tdm_display_update_caps_capture(private_display->capture_module,
 629                                                                                            &private_display->capture_module->caps_capture);
 630                 if (ret != TDM_ERROR_NONE)
 631                         goto failed_update;
 632         }
 633
 634         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 635                 tdm_output **outputs;
 636                 int output_count = 0, i;
 637
 638                 outputs = _tdm_display_get_ordered_outputs(private_module, &output_count);
 639                 if (!outputs)
 640                         goto failed_update;
 641
 642                 for (i = 0; i < output_count; i++) {
 643                         ret = tdm_display_update_output(private_module, outputs[i], index++, 1);
 644                         if (ret != TDM_ERROR_NONE)
 645                                 goto failed_update;
 646                 }
 647         }
 648
 649         return TDM_ERROR_NONE;
 650
 651 failed_update:
 652         _tdm_display_destroy_private_display(private_display);
 653         return ret;
 654 }
 655 /* LCOV_EXCL_STOP */
 656
 657 EXTERN tdm_error
 658 tdm_display_update(tdm_display *dpy)
 659 {
 660         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 661         TDM_RETURN_VAL_IF_FAIL(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER);
 662
 663         TDM_DEPRECATED(NULL);
 664
 665         return TDM_ERROR_NONE;
 666 }
 667
 668 int tdm_debug_module;
 669 int tdm_debug_dump;
 670 int tdm_ttrace_module;
 671 int tdm_ttrace_output;
 672
 673 static tdm_private_display *g_private_display;
 674 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 675
 676 /* LCOV_EXCL_START */
 677 static tdm_error
 678 _tdm_display_check_module(tdm_backend_module *module)
 679 {
 680         int major, minor;
 681
 682         TDM_INFO("TDM ABI version : %d.%d",
 683                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 684
 685         if (!module->name) {
 686                 TDM_ERR("TDM backend doesn't have name");
 687                 return TDM_ERROR_BAD_MODULE;
 688         }
 689
 690         if (!module->vendor) {
 691                 TDM_ERR("TDM backend doesn't have vendor");
 692                 return TDM_ERROR_BAD_MODULE;
 693         }
 694
 695         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 696         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 697
 698         TDM_INFO("TDM module name: %s", module->name);
 699         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 700         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 701
 702         if (major != TDM_MAJOR_VERSION) {
 703                 TDM_ERR("'%s' major version mismatch, %d != %d",
 704                                 module->name, major, TDM_MAJOR_VERSION);
 705                 return TDM_ERROR_BAD_MODULE;
 706         }
 707
 708         if (minor > TDM_MINOR_VERSION) {
 709                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 710                                 module->name, minor, TDM_MINOR_VERSION);
 711                 return TDM_ERROR_BAD_MODULE;
 712         }
 713
 714         if (!module->init) {
 715                 TDM_ERR("'%s' doesn't have init function", module->name);
 716                 return TDM_ERROR_BAD_MODULE;
 717         }
 718
 719         if (!module->deinit) {
 720                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 721                 return TDM_ERROR_BAD_MODULE;
 722         }
 723
 724         return TDM_ERROR_NONE;
 725 }
 726
 727 static tdm_error
 728 _tdm_display_check_backend_functions(tdm_private_module *private_module)
 729 {
 730         tdm_func_display *func_display = &private_module->func_display;
 731         tdm_func_output *func_output = &private_module->func_output;
 732         tdm_func_layer *func_layer = &private_module->func_layer;
 733         tdm_error ret;
 734
 735         /* below functions should be implemented in backend side */
 736
 737         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 738         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capability, TDM_ERROR_BAD_MODULE);
 739         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 740         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 741         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 742         TDM_RETURN_VAL_IF_FAIL(func_output->output_wait_vblank, TDM_ERROR_BAD_MODULE);
 743         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_vblank_handler, TDM_ERROR_BAD_MODULE);
 744         TDM_RETURN_VAL_IF_FAIL(func_output->output_commit, TDM_ERROR_BAD_MODULE);
 745         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_commit_handler, TDM_ERROR_BAD_MODULE);
 746         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_mode, TDM_ERROR_BAD_MODULE);
 747         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 748         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_info, TDM_ERROR_BAD_MODULE);
 749         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_info, TDM_ERROR_BAD_MODULE);
 750         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_buffer, TDM_ERROR_BAD_MODULE);
 751         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_unset_buffer, TDM_ERROR_BAD_MODULE);
 752
 753         ret = func_display->display_get_capability(private_module->bdata, &private_module->caps_display);
 754         if (ret != TDM_ERROR_NONE) {
 755                 TDM_ERR("display_get_capability() failed");
 756                 return TDM_ERROR_BAD_MODULE;
 757         }
 758
 759         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 760                 tdm_func_pp *func_pp = &private_module->func_pp;
 761                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 762                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 763                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 764                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 765                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 766         }
 767
 768         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 769                 tdm_func_capture *func_capture = &private_module->func_capture;
 770                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 771                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 772                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 773                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 774                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 775                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 776                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 777                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 778         }
 779
 780         return TDM_ERROR_NONE;
 781 }
 782
 783 static tdm_error
 784 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 785                                                                    const char *file)
 786 {
 787         char path[TDM_PATH_LEN] = {0,};
 788         void *module = NULL;
 789         tdm_backend_module *module_data;
 790         tdm_backend_data *bdata = NULL;
 791         tdm_private_module *private_module = NULL;
 792         tdm_error ret;
 793         double stamp;
 794         int size;
 795
 796         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 797         if (size >= (int)sizeof(path)) {
 798                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 799                 return TDM_ERROR_BAD_MODULE;
 800         };
 801
 802         private_module = calloc(1, sizeof *private_module);
 803         if (!private_module) {
 804                 TDM_ERR("alloc failed: %m");
 805                 ret = TDM_ERROR_OUT_OF_MEMORY;
 806                 goto failed_load;
 807         }
 808
 809         private_module->private_display = private_display;
 810
 811         stamp = tdm_helper_get_time();
 812
 813         TDM_TRACE_BEGIN("TDM_Load_Backend");
 814         module = dlopen(path, RTLD_LAZY);
 815         if (!module) {
 816                 TDM_ERR("%s", dlerror());
 817                 TDM_TRACE_END();
 818                 ret = TDM_ERROR_BAD_MODULE;
 819                 goto failed_load;
 820         }
 821
 822         private_module->module = module;
 823
 824         module_data = dlsym(module, "tdm_backend_module_data");
 825         if (!module_data) {
 826                 TDM_ERR("'%s' doesn't have data object", file);
 827                 ret = TDM_ERROR_BAD_MODULE;
 828                 TDM_TRACE_END();
 829                 goto failed_load;
 830         }
 831         TDM_TRACE_END();
 832
 833         private_module->module_data = module_data;
 834
 835         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 836
 837         /* check if version, init() and deinit() are valid or not */
 838         ret = _tdm_display_check_module(module_data);
 839         if (ret != TDM_ERROR_NONE) {
 840                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
 841                 goto failed_load;
 842         }
 843
 844         private_display->current_module = private_module;
 845
 846         /* We don't care if backend_data is NULL or not. It's up to backend. */
 847         TDM_TRACE_BEGIN("TDM_Init_Backend");
 848         stamp = tdm_helper_get_time();
 849         bdata = module_data->init((tdm_display *)private_display, &ret);
 850         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 851         TDM_TRACE_END();
 852
 853         private_display->current_module = NULL;
 854
 855         private_module->bdata = bdata;
 856
 857         if (ret != TDM_ERROR_NONE) {
 858                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
 859                 goto failed_load;
 860         }
 861
 862         ret = _tdm_display_check_backend_functions(private_module);
 863         if (ret != TDM_ERROR_NONE) {
 864                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
 865                 goto failed_load;
 866         }
 867
 868         LIST_INITHEAD(&private_module->output_list);
 869         LIST_INITHEAD(&private_module->pp_list);
 870         LIST_INITHEAD(&private_module->capture_list);
 871
 872         LIST_ADDTAIL(&private_module->link, &private_display->module_list);
 873
 874         TDM_INFO("Success to load '%s' module", module_data->name);
 875
 876         return TDM_ERROR_NONE;
 877 failed_load:
 878         if (bdata)
 879                 module_data->deinit(bdata);
 880         if (module)
 881                 dlclose(module);
 882         if (private_module)
 883                 free(private_module);
 884         return ret;
 885 }
 886
 887 static tdm_error
 888 _tdm_display_load_modules(tdm_private_display *private_display)
 889 {
 890         const char *module_names;
 891         tdm_error ret = 0;
 892         char temp[TDM_PATH_LEN];
 893         char *arg;
 894         char *end;
 895
 896         LIST_INITHEAD(&private_display->module_list);
 897
 898         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
 899
 900         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
 901
 902         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
 903         while (arg) {
 904                 TDM_INFO("loading a %s backend", arg);
 905                 ret = _tdm_display_load_module_with_file(private_display, arg);
 906                 if (ret == TDM_ERROR_NONE)
 907                         TDM_INFO("%s backend loading success", arg);
 908                 else
 909                         TDM_INFO("%s backend loading failed", arg);
 910                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
 911         }
 912
 913         /* load bufmgr priv from dummy lib */
 914         if (LIST_IS_EMPTY(&private_display->module_list)) {
 915                 TDM_WRN("No backend. loading a %s backend", TDM_DUMMY_MODULE);
 916                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 917                 if (ret == TDM_ERROR_NONE)
 918                         TDM_INFO("%s backend loading success", TDM_DUMMY_MODULE);
 919                 else
 920                         TDM_INFO("%s backend loading failed", TDM_DUMMY_MODULE);
 921         }
 922
 923         return ret;
 924 }
 925
 926 static void
 927 _tdm_display_unload_modules(tdm_private_display *private_display)
 928 {
 929         tdm_private_module *private_module = NULL, *bb = NULL;
 930
 931         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
 932                 LIST_DEL(&private_module->link);
 933
 934                 if (private_module->module_data)
 935                         private_module->module_data->deinit(private_module->bdata);
 936                 if (private_module->module)
 937                         dlclose(private_module->module);
 938
 939                 free(private_module);
 940         }
 941 }
 942 /* LCOV_EXCL_STOP */
 943
 944 EXTERN tdm_display *
 945 tdm_display_init(tdm_error *error)
 946 {
 947         tdm_private_display *private_display = NULL;
 948         const char *str;
 949         tdm_error ret;
 950         double stamp1, stamp2, start;
 951         int mode;
 952
 953         pthread_mutex_lock(&gLock);
 954
 955         if (g_private_display) {
 956                 g_private_display->init_count++;
 957                 pthread_mutex_unlock(&gLock);
 958                 if (error)
 959                         *error = TDM_ERROR_NONE;
 960                 return g_private_display;
 961         }
 962
 963         start = stamp1 = tdm_helper_get_time();
 964
 965         stamp2 = tdm_helper_get_time();
 966         TDM_INFO("config init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 967         stamp1 = stamp2;
 968
 969         private_display = calloc(1, sizeof(tdm_private_display));
 970         if (!private_display) {
 971                 /* LCOV_EXCL_START */
 972                 ret = TDM_ERROR_OUT_OF_MEMORY;
 973                 TDM_ERR("'private_display != NULL' failed");
 974                 goto failed_alloc;
 975                 /* LCOV_EXCL_STOP */
 976         }
 977
 978         private_display->stamp = tdm_helper_get_time();
 979
 980         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
 981         if (str)
 982                 tdm_display_enable_debug_module(str);
 983
 984         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
 985         if (str)
 986                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 987
 988         if (pthread_mutex_init(&private_display->lock, NULL)) {
 989                 /* LCOV_EXCL_START */
 990                 ret = TDM_ERROR_OPERATION_FAILED;
 991                 TDM_ERR("mutex init failed: %m");
 992                 goto failed_mutex_init;
 993                 /* LCOV_EXCL_STOP */
 994         }
 995
 996         _pthread_mutex_lock(&private_display->lock);
 997
 998         stamp2 = tdm_helper_get_time();
 999         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1000         stamp1 = stamp2;
1001
1002         ret = tdm_event_loop_init(private_display);
1003         if (ret != TDM_ERROR_NONE)
1004                 goto failed_event;
1005
1006         stamp2 = tdm_helper_get_time();
1007         TDM_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1008         stamp1 = stamp2;
1009
1010         ret = tdm_vblank_init(private_display);
1011         if (ret != TDM_ERROR_NONE)
1012                 goto failed_vblank;
1013
1014         ret = tdm_output_init(private_display);
1015         if (ret != TDM_ERROR_NONE)
1016                 goto failed_load;
1017
1018         ret = tdm_pp_init(private_display);
1019         if (ret != TDM_ERROR_NONE)
1020                 goto failed_load;
1021
1022         ret = tdm_capture_init(private_display);
1023         if (ret != TDM_ERROR_NONE)
1024                 goto failed_load;
1025
1026         ret = _tdm_display_load_modules(private_display);
1027         if (ret != TDM_ERROR_NONE)
1028                 goto failed_load;
1029
1030         stamp2 = tdm_helper_get_time();
1031         TDM_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1032         stamp1 = stamp2;
1033
1034 #ifdef INIT_BUFMGR
1035         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1036         if (tdm_drm_fd >= 0) {
1037                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1038                 close(tdm_drm_fd);
1039                 if (!private_display->bufmgr) {
1040                         TDM_ERR("tbm_bufmgr_init failed");
1041                         goto failed_update;
1042                 } else {
1043                         TDM_INFO("tbm_bufmgr_init successed");
1044                 }
1045
1046                 stamp2 = tdm_helper_get_time();
1047                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1048                 stamp1 = stamp2;
1049         }
1050 #endif
1051
1052         TDM_TRACE_BEGIN("TDM_Update_Display");
1053         ret = _tdm_display_update(private_display);
1054         TDM_TRACE_END();
1055         if (ret != TDM_ERROR_NONE)
1056                 goto failed_update;
1057
1058         stamp2 = tdm_helper_get_time();
1059         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1060         stamp1 = stamp2;
1061
1062         tdm_event_loop_create_backend_source(private_display);
1063
1064         private_display->init_count = 1;
1065         g_private_display = private_display;
1066
1067         tdm_private_module *b = NULL;
1068         tdm_private_output *o = NULL;
1069         LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1070                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1071                         if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1072                                 tdm_output_need_validate_event_init(o);
1073                 }
1074         }
1075
1076         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1077          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1078          * this functionality can be turned off which means a default mode */
1079         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1080         if (mode > 0) {
1081                 tdm_private_module *b = NULL;
1082                 tdm_private_output *o = NULL;
1083
1084                 /* outputs which support hwc capability can work only
1085                  * if commit_per_vblank mode is '0' (default mode) */
1086                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1087                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1088                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1089                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1090                         }
1091                 }
1092         }
1093
1094         if (error)
1095                 *error = TDM_ERROR_NONE;
1096
1097         _pthread_mutex_unlock(&private_display->lock);
1098         pthread_mutex_unlock(&gLock);
1099
1100         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1101
1102         return (tdm_display *)private_display;
1103
1104 /* LCOV_EXCL_START */
1105 failed_update:
1106         _tdm_display_unload_modules(private_display);
1107 failed_load:
1108         tdm_vblank_deinit(private_display);
1109 failed_vblank:
1110         tdm_event_loop_stop(private_display);
1111         tdm_event_loop_deinit(private_display);
1112 failed_event:
1113         _pthread_mutex_unlock(&private_display->lock);
1114         pthread_mutex_destroy(&private_display->lock);
1115 failed_mutex_init:
1116         free(private_display);
1117 failed_alloc:
1118         if (error)
1119                 *error = ret;
1120         pthread_mutex_unlock(&gLock);
1121         return NULL;
1122 /* LCOV_EXCL_STOP */
1123 }
1124
1125 EXTERN void
1126 tdm_display_deinit(tdm_display *dpy)
1127 {
1128         tdm_private_display *private_display = dpy;
1129
1130         if (!private_display)
1131                 return;
1132
1133         TDM_RETURN_IF_FAIL(tdm_display_is_valid(dpy));
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
1191 INTERN int
1192 tdm_display_is_valid(tdm_display *dpy)
1193 {
1194         if (dpy != NULL && dpy == g_private_display)
1195                 return 1;
1196         return 0;
1197 }
1198
1199 INTERN int
1200 tdm_output_is_valid(tdm_output *output)
1201 {
1202         tdm_private_module *b = NULL;
1203         tdm_private_output *o = NULL;
1204
1205         if (!output || !g_private_display)
1206                 return 0;
1207
1208         LIST_FOR_EACH_ENTRY(b, &g_private_display->module_list, link) {
1209                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link)
1210                         if (o == output)
1211                                 return 1;
1212         }
1213
1214         return 0;
1215 }
1216
1217 /* LCOV_EXCL_START */
1218 INTERN int
1219 tdm_module_check_abi(tdm_private_module *private_module, int abimaj, int abimin)
1220 {
1221         tdm_backend_module *module = private_module->module_data;
1222
1223         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1224                 return 0;
1225
1226         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1227                 return 0;
1228
1229         return 1;
1230 }
1231
1232 INTERN tdm_error
1233 tdm_display_enable_debug_module(const char*modules)
1234 {
1235         char temp[TDM_PATH_LEN];
1236         char *arg;
1237         char *end;
1238
1239         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1240
1241         tdm_debug_module = 0;
1242
1243         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1244         while (arg) {
1245                 if (!strncmp(arg, "none", 4)) {
1246                         tdm_debug_module = 0;
1247                         return TDM_ERROR_NONE;
1248                 }
1249                 if (!strncmp(arg, "all", 3)) {
1250                         tdm_debug_module = 0xFFFFFFFF;
1251                         return TDM_ERROR_NONE;
1252                 }
1253                 if (!strncmp(arg, "buffer", 6))
1254                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1255                 else if (!strncmp(arg, "event", 5))
1256                         tdm_debug_module |= TDM_DEBUG_EVENT;
1257                 else if (!strncmp(arg, "thread", 6))
1258                         tdm_debug_module |= TDM_DEBUG_THREAD;
1259                 else if (!strncmp(arg, "mutex", 5))
1260                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1261                 else if (!strncmp(arg, "vblank", 6))
1262                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1263                 else if (!strncmp(arg, "commit", 6))
1264                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1265
1266                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1267         }
1268
1269         TDM_INFO("module debugging... '%s'", modules);
1270
1271         return TDM_ERROR_NONE;
1272 }
1273
1274 INTERN tdm_error
1275 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1276 {
1277         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1278         char *path = NULL, *path2;
1279         char *arg;
1280         char *end;
1281
1282         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1283         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1284         if (!path2 || path2[0] == '\0')
1285                 path2 = TDM_DUMP_DIR;
1286         else
1287                 path2++;
1288
1289         tdm_debug_dump = 0;
1290
1291         snprintf(temp, sizeof(temp), "%s", dump_str);
1292         arg = strtok_r(temp, ",", &end);
1293         TDM_GOTO_IF_FAIL(arg != NULL, done);
1294
1295         if (!strncmp(arg, "none", 4)) {
1296                 tdm_debug_dump = 0;
1297                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1298                 if (tdm_debug_dump_dir) {
1299                         free(tdm_debug_dump_dir);
1300                         tdm_debug_dump_dir = NULL;
1301                 }
1302                 goto done;
1303         }
1304
1305         path = tdm_helper_dump_make_directory(path2, reply, len);
1306         TDM_GOTO_IF_FAIL(path != NULL, done);
1307
1308         if (!strncmp(arg, "current", 7)) {
1309                 tdm_private_module *b = NULL;
1310                 tdm_private_output *o = NULL;
1311
1312                 if (!private_display) {
1313                         TDM_WRN("no private_display");
1314                         goto done;
1315                 }
1316
1317                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1318                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1319                                 tdm_private_layer *l = NULL;
1320                                 LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1321                                         char str[TDM_PATH_LEN];
1322                                         if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1323                                                 continue;
1324                                         if (!l->showing_buffer)
1325                                                 continue;
1326                                         snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1327                                         tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1328                                 }
1329                         }
1330                 }
1331
1332                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1333                 goto done;
1334         }
1335
1336         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1337
1338         while (arg) {
1339                 if (!strncmp(arg, "all", 3)) {
1340                         tdm_debug_dump = 0xFFFFFFFF;
1341                         goto done;
1342                 } else if (!strncmp(arg, "layer", 5)) {
1343                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1344                 } else if (!strncmp(arg, "pp", 2)) {
1345                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1346                 } else if (!strncmp(arg, "capture", 7)) {
1347                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1348                 } else if (!strncmp(arg, "window", 6)) {
1349                         tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
1350                 } else
1351                         goto done;
1352
1353                 arg = strtok_r(NULL, ",", &end);
1354         }
1355
1356         if (tdm_debug_dump_dir)
1357                 free(tdm_debug_dump_dir);
1358
1359         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1360
1361         TDM_INFO("dump... '%s'", dump_str);
1362
1363 done:
1364         if (path)
1365                 free(path);
1366
1367         return TDM_ERROR_NONE;
1368 }
1369
1370 static void
1371 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1372                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1373 {
1374         tdm_error ret = TDM_ERROR_NONE;
1375
1376         TDM_TRACE_MARK("VSYNC");
1377
1378         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1379         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1380 }
1381
1382 INTERN tdm_error
1383 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1384 {
1385         tdm_private_display *private_display = dpy;
1386         tdm_private_module *private_module = NULL;
1387         tdm_private_output *private_output = NULL;
1388         const tdm_output_mode *mode = NULL;
1389         tdm_vblank *vblank = NULL;
1390         tdm_error ret = TDM_ERROR_NONE;
1391
1392         if (!enable) {
1393                 LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
1394                         LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
1395                                 if (private_output->ttrace_vblank)
1396                                         tdm_vblank_destroy(private_output->ttrace_vblank);
1397                                 private_output->ttrace_vblank = NULL;
1398                         }
1399                 }
1400                 return TDM_ERROR_NONE;
1401         }
1402
1403         private_output = output;
1404         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1405
1406         if (private_output->ttrace_vblank)
1407                 return TDM_ERROR_NONE;
1408
1409         vblank = tdm_vblank_create(private_display, output, &ret);
1410         TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1411
1412         ret = tdm_output_get_mode(output, &mode);
1413         TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1414
1415         ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1416         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1417
1418         ret = tdm_vblank_set_enable_fake(vblank, 1);
1419         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1420
1421         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1422         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1423
1424         private_output->ttrace_vblank = vblank;
1425
1426         return TDM_ERROR_NONE;
1427
1428 enable_fail:
1429         if (vblank)
1430                 tdm_vblank_destroy(vblank);
1431
1432         return ret;
1433 }
1434
1435 INTERN tdm_error
1436 tdm_display_enable_ttrace(tdm_private_display *private_display, const char *ttrace, int output_id, char *reply, int *len)
1437 {
1438         char temp[TDM_PATH_LEN];
1439         char *arg;
1440         char *end;
1441         tdm_output *output;
1442         tdm_error ret;
1443         tdm_output_type type;
1444
1445         snprintf(temp, TDM_PATH_LEN, "%s", ttrace);
1446
1447         tdm_ttrace_output = output_id;
1448         tdm_ttrace_module = 0;
1449
1450         output = tdm_display_get_output(private_display, output_id, &ret);
1451         if (!output) {
1452                 TDM_SNPRINTF(reply, len, "can't find the output_id(%d)\n", output_id);
1453                 return ret;
1454         }
1455
1456         ret = tdm_output_get_output_type(output, &type);
1457         if (ret != TDM_ERROR_NONE) {
1458                 TDM_SNPRINTF(reply, len, "can't find the type of output_id(%d)\n", output_id);
1459                 return ret;
1460         }
1461
1462         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1463         while (arg) {
1464                 if (!strncmp(arg, "none", 4))
1465                         tdm_ttrace_module = 0;
1466                 else if (!strncmp(arg, "all", 3))
1467                         tdm_ttrace_module = 0xFFFFFFFF;
1468                 else if (!strncmp(arg, "vsync", 5))
1469                         tdm_ttrace_module |= TDM_TTRACE_VSYNC;
1470                 else if (!strncmp(arg, "client_vblank", 13))
1471                         tdm_ttrace_module |= TDM_TTRACE_CLIENT_VBLANK;
1472                 else if (!strncmp(arg, "server_vblank", 13))
1473                         tdm_ttrace_module |= TDM_TTRACE_SERVER_VBLANK;
1474                 else if (!strncmp(arg, "vblank", 6))
1475                         tdm_ttrace_module |= TDM_TTRACE_VBLANK;
1476                 else if (!strncmp(arg, "layer", 5))
1477                         tdm_ttrace_module |= TDM_TTRACE_LAYER;
1478                 else if (!strncmp(arg, "pp", 2))
1479                         tdm_ttrace_module |= TDM_TTRACE_PP;
1480                 else if (!strncmp(arg, "capture", 7))
1481                         tdm_ttrace_module |= TDM_TTRACE_CAPTURE;
1482                 else  {
1483                         tdm_ttrace_module = 0;
1484                         tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1485                         tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1486                         TDM_SNPRINTF(reply, len, "unknown option: '%s'\n", arg);
1487                         return TDM_ERROR_NONE;
1488                 }
1489
1490                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1491         }
1492
1493         TDM_SNPRINTF(reply, len, "ttrace debugging... '%s' %x\n", ttrace, tdm_ttrace_module);
1494
1495         if (tdm_ttrace_module & TDM_TTRACE_VSYNC)
1496                 tdm_display_enable_ttrace_vblank(private_display, output, 1);
1497         else
1498                 tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1499
1500         if (tdm_ttrace_module & TDM_TTRACE_CLIENT_VBLANK)
1501                 tdm_server_enable_ttrace_client_vblank(private_display, output, 1);
1502         else
1503                 tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1504
1505         return TDM_ERROR_NONE;
1506 }
1507
1508 INTERN tdm_error
1509 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1510 {
1511         private_display->print_fps = enable;
1512
1513         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1514
1515         return TDM_ERROR_NONE;
1516 }
1517 /* LCOV_EXCL_STOP */