src/tdm.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <boram1288.park@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm_private.h"
  41
  42 pthread_mutex_t tdm_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  43 int tdm_mutex_locked;
  44 const char *tdm_mutex_lock_func;
  45 int tdm_mutex_lock_line;
  46 const char *tdm_mutex_unlock_func;
  47 int tdm_mutex_unlock_line;
  48
  49 pthread_mutex_t tdm_debug_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  50 const char *tdm_debug_mutex_lock_func;
  51 int tdm_debug_mutex_lock_line;
  52
  53 static tdm_error _tdm_display_load_module_with_file(tdm_private_display *private_display, const char *file);
  54
  55 /* LCOV_EXCL_START */
  56 static tdm_private_layer *
  57 _tdm_display_find_private_layer(tdm_private_output *private_output,
  58                                                                 tdm_layer *layer_backend)
  59 {
  60         tdm_private_layer *private_layer = NULL;
  61
  62         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  63                 if (private_layer->layer_backend == layer_backend)
  64                         return private_layer;
  65         }
  66
  67         return NULL;
  68 }
  69
  70 INTERN tdm_private_output *
  71 tdm_display_find_private_output(tdm_private_display *private_display, tdm_output *output_backend)
  72 {
  73         tdm_private_module *private_module = NULL;
  74         tdm_private_output *private_output = NULL;
  75
  76         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
  77                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
  78                         if (private_output->output_backend == output_backend)
  79                                 return private_output;
  80                 }
  81         }
  82
  83         return NULL;
  84 }
  85
  86 INTERN unsigned int
  87 tdm_display_find_empty_output_pipe(tdm_private_display *private_display)
  88 {
  89         tdm_private_module *private_module = NULL;
  90         tdm_private_output *private_output = NULL;
  91         unsigned int pipe = 0;
  92         while (1) {
  93                 int found = 0;
  94                 LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
  95                         LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
  96                                 if (private_output->pipe == pipe) {
  97                                         found = 1;
  98                                         break;
  99                                 }
 100                         }
 101                         if (found)
 102                                 break;
 103                 }
 104
 105                 if (!found)
 106                         break;
 107                 else
 108                         pipe++;
 109         }
 110
 111         return pipe;
 112 }
 113
 114 INTERN void *
 115 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
 116 {
 117         tdm_private_module *private_module = NULL;
 118         tdm_private_output *private_output = NULL;
 119
 120         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 121                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
 122                         if (private_output->stamp == stamp)
 123                                 return private_output;
 124                 }
 125         }
 126
 127         return NULL;
 128 }
 129
 130 INTERN void *
 131 tdm_display_find_private_voutput(tdm_private_display *private_display, double stamp)
 132 {
 133         tdm_private_module *private_module = NULL;
 134         tdm_private_voutput *private_voutput = NULL;
 135         tdm_private_output *private_output = NULL;
 136
 137         private_module = private_display->virtual_module;
 138         if (!private_module) return NULL;
 139
 140         LIST_FOR_EACH_ENTRY(private_voutput, &private_module->voutput_list, link) {
 141                 if (!private_voutput->private_output) continue;
 142                 private_output = private_voutput->private_output;
 143                 if (private_output->stamp == stamp)
 144                         return private_voutput;
 145         }
 146
 147         return NULL;
 148 }
 149
 150 tdm_private_hwc *
 151 tdm_display_find_private_hwc(tdm_private_display *private_display, tdm_hwc *hwc_backend)
 152 {
 153         tdm_private_module *private_module = NULL;
 154         tdm_private_output *private_output = NULL;
 155         tdm_private_hwc *private_hwc = NULL;
 156
 157         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 158                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
 159                         if (!private_output->private_hwc) continue;
 160                         private_hwc = private_output->private_hwc;
 161                         if (private_hwc->hwc_backend == hwc_backend)
 162                                 return private_hwc;
 163                 }
 164         }
 165
 166         return NULL;
 167 }
 168
 169 INTERN void *
 170 tdm_display_find_hwc_stamp(tdm_private_display *private_display, double stamp)
 171 {
 172         tdm_private_module *private_module = NULL;
 173         tdm_private_output *private_output = NULL;
 174         tdm_private_hwc *private_hwc = NULL;
 175
 176         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 177                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
 178                         if (!private_output->private_hwc) continue;
 179                         private_hwc = private_output->private_hwc;
 180                         if (private_hwc->stamp == stamp)
 181                                 return private_hwc;
 182                 }
 183         }
 184
 185         return NULL;
 186 }
 187
 188 static void
 189 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
 190 {
 191         if (caps_pp->formats)
 192                 free(caps_pp->formats);
 193
 194         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 195 }
 196
 197 static void
 198 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 199 {
 200         if (caps_capture->formats)
 201                 free(caps_capture->formats);
 202
 203         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 204 }
 205
 206 static void
 207 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 208 {
 209         if (caps_layer->formats)
 210                 free(caps_layer->formats);
 211
 212         if (caps_layer->props)
 213                 free(caps_layer->props);
 214
 215         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 216 }
 217
 218 static void
 219 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 220 {
 221         if (caps_output->modes)
 222                 free(caps_output->modes);
 223
 224         if (caps_output->props)
 225                 free(caps_output->props);
 226
 227         memset(caps_output, 0, sizeof(tdm_caps_output));
 228 }
 229
 230 static void
 231 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 232 {
 233         tdm_private_capture *c = NULL, *cc = NULL;
 234
 235         tdm_layer_unset_buffer_internal(private_layer);
 236
 237         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 238         tdm_capture_destroy_internal(c);
 239
 240         _tdm_display_destroy_caps_layer(&private_layer->caps);
 241
 242         /* when destroying layer, someone could check if layer is valid. So delete
 243          * the layer's link at last.
 244          */
 245         LIST_DEL(&private_layer->link);
 246
 247         free(private_layer);
 248 }
 249
 250 INTERN void
 251 tdm_display_destroy_private_output(tdm_private_output *private_output)
 252 {
 253         tdm_private_display *private_display = private_output->private_display;
 254         tdm_private_layer *l = NULL, *ll = NULL;
 255         tdm_private_hwc *private_hwc = NULL;
 256         tdm_private_hwc_window *hw = NULL, *hww = NULL;
 257         tdm_private_capture *c = NULL, *cc = NULL;
 258         tdm_private_output_vblank_handler *v = NULL, *vv = NULL;
 259         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 260         tdm_private_hwc_commit_handler *hm = NULL, *hmm = NULL;
 261         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 262         tdm_private_output_change_handler *h = NULL, *hh = NULL;
 263         tdm_private_output_destroy_handler *dh = NULL, *dhh = NULL;
 264         tdm_error ret;
 265         int mutex_locked = 0;
 266
 267         ret = tdm_output_call_thread_cb_destroy(private_output);
 268         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 269
 270         free(private_output->layers_ptr);
 271
 272         if (private_output->vblank_timeout_timer)
 273                 tdm_event_loop_source_remove(private_output->vblank_timeout_timer);
 274
 275         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 276                 LIST_DEL(&v->link);
 277                 free(v);
 278         }
 279
 280         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 281                 LIST_DEL(&om->link);
 282                 free(om);
 283         }
 284
 285         if (private_output->private_hwc) {
 286                 private_hwc = private_output->private_hwc;
 287                 LIST_FOR_EACH_ENTRY_SAFE(hm, hmm, &private_hwc->hwc_commit_handler_list, link) {
 288                         LIST_DEL(&hm->link);
 289                         free(hm);
 290                 }
 291         } else {
 292                 LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 293                         LIST_DEL(&lm->link);
 294                         free(lm);
 295                 }
 296         }
 297
 298         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 299                 LIST_DEL(&lm->link);
 300                 free(lm);
 301         }
 302
 303         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list, link) {
 304                 LIST_DEL(&h->link);
 305                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_DPMS, NULL, tdm_output_thread_cb_change, h);
 306                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_STATUS, NULL, tdm_output_thread_cb_change, h);
 307                 free(h);
 308         }
 309
 310         LIST_FOR_EACH_ENTRY_SAFE(dh, dhh, &private_output->destroy_handler_list, link) {
 311                 LIST_DEL(&dh->link);
 312                 tdm_thread_cb_remove(dh->private_output, TDM_THREAD_CB_OUTPUT_DESTROY, NULL, tdm_output_thread_cb_destroy, dh);
 313                 free(dh);
 314         }
 315
 316         if (tdm_thread_is_running() && TDM_MUTEX_IS_LOCKED()) mutex_locked = 1;
 317         if (private_output->vblank) {
 318                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 319                 if (mutex_locked) _pthread_mutex_unlock(&private_display->lock);
 320                 tdm_vblank_destroy(private_output->vblank);
 321                 if (mutex_locked) _pthread_mutex_lock(&private_display->lock);
 322         }
 323
 324         if (private_output->ttrace_vblank) {
 325                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 326                 if (mutex_locked) _pthread_mutex_unlock(&private_display->lock);
 327                 tdm_vblank_destroy(private_output->ttrace_vblank);
 328                 if (mutex_locked) _pthread_mutex_lock(&private_display->lock);
 329         }
 330
 331         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 332                 tdm_capture_destroy_internal(c);
 333
 334         if (private_output->private_hwc) {
 335                 private_hwc = private_output->private_hwc;
 336                 LIST_FOR_EACH_ENTRY_SAFE(hw, hww, &private_hwc->hwc_window_list, link)
 337                         tdm_hwc_window_destroy_internal(hw);
 338                 if (private_hwc->display_target_buffer)
 339                         tbm_surface_internal_unref(private_hwc->display_target_buffer);
 340                 free(private_hwc);
 341         } else {
 342                 LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 343                         _tdm_display_destroy_private_layer(l);
 344         }
 345
 346         _tdm_display_destroy_caps_output(&private_output->caps);
 347
 348         /* when destroying output, vblank objects are also destroyed. vblank checks
 349          * if output object is valid. So delete the output's link at last.
 350          */
 351         LIST_DEL(&private_output->link);
 352
 353         private_output->stamp = 0;
 354         free(private_output);
 355 }
 356
 357 static void
 358 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 359 {
 360         tdm_private_module *private_module = NULL, *bb = NULL;
 361         tdm_private_output *o = NULL, *oo = NULL;
 362         tdm_private_pp *p = NULL, *pp = NULL;
 363         tdm_private_output_create_handler *ch = NULL, *chh = NULL;
 364
 365         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
 366                 LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_module->pp_list, link) {
 367                         tdm_pp_destroy_internal(p);
 368                 }
 369
 370                 LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_module->output_list, link) {
 371                         tdm_display_destroy_private_output(o);
 372                 }
 373
 374                 _tdm_display_destroy_caps_pp(&private_module->caps_pp);
 375                 _tdm_display_destroy_caps_capture(&private_module->caps_capture);
 376
 377                 private_module->capabilities = 0;
 378                 private_module->caps_display.max_layer_count = 0;
 379
 380                 if (private_module->outputs) {
 381                         free(private_module->outputs);
 382                         private_module->outputs = NULL;
 383                 }
 384         }
 385
 386         LIST_FOR_EACH_ENTRY_SAFE(ch, chh, &private_display->output_create_handler_list, link) {
 387                 LIST_DEL(&ch->link);
 388                 tdm_thread_cb_remove(ch->private_display, TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, NULL,
 389                                                          tdm_display_thread_cb_output_create, ch);
 390                 free(ch);
 391         }
 392 }
 393
 394 static tdm_error
 395 _tdm_display_update_caps_pp(tdm_private_module *private_module, tdm_caps_pp *caps)
 396 {
 397         tdm_func_display *func_display;
 398         tdm_error ret;
 399
 400         func_display = &private_module->func_display;
 401
 402         if (!func_display->display_get_pp_capability) {
 403                 TDM_ERR("backend(%s) no display_get_pp_capability()", private_module->module_data->name);
 404                 return TDM_ERROR_BAD_MODULE;
 405         }
 406
 407         memset(caps, 0, sizeof(tdm_caps_pp));
 408
 409         ret = func_display->display_get_pp_capability(private_module->bdata, caps);
 410         if (ret != TDM_ERROR_NONE) {
 411                 TDM_ERR("backend(%s) display_get_pp_capability() failed", private_module->module_data->name);
 412                 return TDM_ERROR_BAD_MODULE;
 413         }
 414
 415         return TDM_ERROR_NONE;
 416 }
 417
 418 static tdm_error
 419 _tdm_display_update_caps_capture(tdm_private_module *private_module, tdm_caps_capture *caps)
 420 {
 421         tdm_func_display *func_display;
 422         tdm_error ret;
 423
 424         func_display = &private_module->func_display;
 425
 426         if (!func_display->display_get_capture_capability) {
 427                 TDM_ERR("backend(%s) no display_get_capture_capability()", private_module->module_data->name);
 428                 return TDM_ERROR_BAD_MODULE;
 429         }
 430
 431         ret = func_display->display_get_capture_capability(private_module->bdata, caps);
 432         if (ret != TDM_ERROR_NONE) {
 433                 TDM_ERR("backend(%s) display_get_capture_capability() failed", private_module->module_data->name);
 434                 return TDM_ERROR_BAD_MODULE;
 435         }
 436
 437         return TDM_ERROR_NONE;
 438 }
 439
 440 static tdm_error
 441 _tdm_display_update_caps_layer(tdm_private_module *private_module,
 442                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 443 {
 444         tdm_func_layer *func_layer = &private_module->func_layer;
 445         tdm_error ret;
 446
 447         if (!func_layer->layer_get_capability) {
 448                 TDM_ERR("backend(%s) no layer_get_capability()", private_module->module_data->name);
 449                 return TDM_ERROR_BAD_MODULE;
 450         }
 451
 452         ret = func_layer->layer_get_capability(layer_backend, caps);
 453         if (ret != TDM_ERROR_NONE) {
 454                 TDM_ERR("backend(%s) layer_get_capability() failed", private_module->module_data->name);
 455                 return TDM_ERROR_BAD_MODULE;
 456         }
 457
 458         return TDM_ERROR_NONE;
 459 }
 460
 461 static tdm_error
 462 _tdm_display_update_caps_output(tdm_private_module *private_module, int pipe,
 463                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 464 {
 465         tdm_func_output *func_output = &private_module->func_output;
 466         char temp[TDM_NAME_LEN];
 467         tdm_error ret;
 468         double stamp;
 469         int n;
 470
 471         stamp = tdm_helper_get_time();
 472         ret = func_output->output_get_capability(output_backend, caps);
 473         TDM_DBG("backend(%s) backend output_get_capability() time: %.3f ms",
 474                         private_module->module_data->name, (tdm_helper_get_time() - stamp) * 1000.0);
 475
 476         if (ret != TDM_ERROR_NONE) {
 477                 TDM_ERR("backend(%s) output_get_capability() failed", private_module->module_data->name);
 478                 return TDM_ERROR_BAD_MODULE;
 479         }
 480
 481         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 482         n = snprintf(temp, sizeof(temp), "%s-%d", caps->model, pipe);
 483         if ((size_t)n >= sizeof(temp)) {
 484                  temp[sizeof(temp) - 1] = '\0';
 485         }
 486
 487         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 488
 489         return TDM_ERROR_NONE;
 490 }
 491
 492 static tdm_error
 493 _tdm_display_update_layer(tdm_private_output *private_output,
 494                                                   tdm_layer *layer_backend, int index)
 495 {
 496         tdm_private_layer *private_layer;
 497         tdm_error ret;
 498
 499         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 500         if (!private_layer) {
 501                 private_layer = calloc(1, sizeof(tdm_private_layer));
 502                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 503
 504                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 505                 LIST_INITHEAD(&private_layer->capture_list);
 506
 507                 private_layer->index = index;
 508                 private_layer->private_module = private_output->private_module;
 509                 private_layer->private_display = private_output->private_display;
 510                 private_layer->private_output = private_output;
 511                 private_layer->layer_backend = layer_backend;
 512                 private_layer->usable = 1;
 513         }
 514
 515         _tdm_display_destroy_caps_layer(&private_layer->caps);
 516
 517         ret = _tdm_display_update_caps_layer(private_output->private_module, layer_backend, &private_layer->caps);
 518         TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 519
 520         return TDM_ERROR_NONE;
 521 }
 522
 523 INTERN tdm_error
 524 tdm_display_update_output(tdm_private_module *private_module, tdm_output *output_backend)
 525 {
 526         tdm_func_output *func_output = &private_module->func_output;
 527         tdm_private_display *private_display = NULL;
 528         tdm_private_output *private_output = NULL;
 529         tdm_layer **layers = NULL;
 530         tdm_private_hwc *private_hwc = NULL;
 531         tdm_hwc *hwc;
 532         int layer_count = 0, i;
 533         tdm_error ret;
 534         unsigned int output_created = 0;
 535
 536         private_display = private_module->private_display;
 537
 538         private_output = tdm_display_find_private_output(private_display, output_backend);
 539         if (!private_output) {
 540                 unsigned int pipe = tdm_display_find_empty_output_pipe(private_display);
 541
 542                 private_output = calloc(1, sizeof(tdm_private_output));
 543                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 544
 545                 private_output->stamp = tdm_helper_get_time();
 546                 while (tdm_display_find_output_stamp(private_display, private_output->stamp))
 547                         private_output->stamp++;
 548
 549                 LIST_ADDTAIL(&private_output->link, &private_module->output_list);
 550
 551                 private_output->private_module = private_module;
 552                 private_output->private_display = private_display;
 553                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 554                 private_output->output_backend = output_backend;
 555                 private_output->pipe = pipe;
 556                 private_output->index = pipe;
 557
 558                 LIST_INITHEAD(&private_output->capture_list);
 559                 LIST_INITHEAD(&private_output->vblank_handler_list);
 560                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 561                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 562                 LIST_INITHEAD(&private_output->destroy_handler_list);
 563                 LIST_INITHEAD(&private_output->change_handler_list);
 564                 LIST_INITHEAD(&private_output->mode_change_request_handler_list);
 565
 566                 if (func_output->output_set_status_handler) {
 567                         func_output->output_set_status_handler(private_output->output_backend,
 568                                                                                                    tdm_output_cb_status,
 569                                                                                                    private_output);
 570                         private_output->regist_change_cb = 1;
 571                 }
 572
 573                 output_created = 1;
 574
 575                 /* NOTE that output modes will be allocated newly after here */
 576                 _tdm_display_destroy_caps_output(&private_output->caps);
 577                 ret = _tdm_display_update_caps_output(private_module, private_output->pipe, output_backend, &private_output->caps);
 578                 TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 579
 580                 if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 581                         private_output->current_mode = NULL;
 582
 583                 /* get the tdm_hwc object */
 584                 if (private_output->caps.capabilities&TDM_OUTPUT_CAPABILITY_HWC) {
 585                         hwc = func_output->output_get_hwc(output_backend, &ret);
 586                         TDM_RETURN_VAL_IF_FAIL(hwc != NULL, ret);
 587
 588                         private_hwc = calloc(1, sizeof(tdm_private_hwc));
 589                         TDM_RETURN_VAL_IF_FAIL(private_hwc != NULL, TDM_ERROR_OUT_OF_MEMORY);
 590
 591                         private_hwc->private_module = private_module;
 592                         private_hwc->private_output = private_output;
 593                         private_hwc->hwc_backend = hwc;
 594                         private_hwc->index = pipe;
 595                         private_hwc->stamp = tdm_helper_get_time();
 596                         while (tdm_display_find_hwc_stamp(private_module->private_display, private_hwc->stamp))
 597                                 private_hwc->stamp++;
 598
 599                         LIST_INITHEAD(&private_hwc->hwc_window_list);
 600                         LIST_INITHEAD(&private_hwc->hwc_commit_handler_list);
 601
 602                         private_output->private_hwc = private_hwc;
 603                 } else {
 604                         LIST_INITHEAD(&private_output->layer_list);
 605                         LIST_INITHEAD(&private_output->layer_commit_handler_list);
 606                 }
 607         } else {
 608                 _tdm_display_destroy_caps_output(&private_output->caps);
 609                 ret = _tdm_display_update_caps_output(private_module, private_output->pipe, output_backend, &private_output->caps);
 610                 TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 611
 612                 if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 613                         private_output->current_mode = NULL;
 614         }
 615
 616         /* do not use the layer object when the tdm_output has the hwc capability */
 617         if ((private_output->caps.capabilities&TDM_OUTPUT_CAPABILITY_HWC) == 0) {
 618                 layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 619                 if (ret != TDM_ERROR_NONE) {
 620                         free(layers);
 621                         return ret;
 622                 }
 623
 624                 for (i = 0; i < layer_count; i++) {
 625                         ret = _tdm_display_update_layer(private_output, layers[i], i);
 626                         if (ret != TDM_ERROR_NONE) {
 627                                 free(layers);
 628                                 return ret;
 629                         }
 630                 }
 631
 632                 free(layers);
 633         }
 634
 635         if (output_created) {
 636                 ret = tdm_display_call_thread_cb_output_create(private_display, private_output);
 637                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 638         }
 639
 640         return TDM_ERROR_NONE;
 641 }
 642
 643 static void
 644 _tdm_display_set_main_first(tdm_output **outputs, int index)
 645 {
 646         tdm_output *output_tmp = NULL;
 647
 648         if (index == 0)
 649                 return;
 650
 651         output_tmp = outputs[0];
 652         outputs[0] = outputs[index];
 653         outputs[index] = output_tmp;
 654 }
 655
 656 static tdm_output **
 657 _tdm_display_get_ordered_outputs(tdm_private_module *private_module, int *count)
 658 {
 659         tdm_func_display *func_display = &private_module->func_display;
 660         tdm_output **outputs = NULL;
 661         tdm_output *output_dsi = NULL;
 662         tdm_output *output_lvds = NULL;
 663         tdm_output *output_hdmia = NULL;
 664         tdm_output *output_hdmib = NULL;
 665         int i, output_count = 0, output_connected_count = 0;
 666         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 667         tdm_error ret;
 668
 669         /* don't change list order if not init time */
 670         if (private_module->outputs) {
 671                 TDM_ERR("can't change output order");
 672                 return private_module->outputs;
 673         }
 674
 675         outputs = func_display->display_get_outputs(private_module->bdata, &output_count, &ret);
 676         if (ret != TDM_ERROR_NONE)
 677                 goto no_output;
 678
 679         *count = output_count;
 680
 681         if (output_count == 0)
 682                 goto no_output;
 683         else if (output_count == 1) {
 684                 private_module->outputs = outputs;
 685                 return outputs;
 686         }
 687
 688         /* count connected outputs */
 689         for (i = 0; i < output_count; i++) {
 690                 tdm_func_output *func_output = &private_module->func_output;
 691                 tdm_caps_output caps;
 692                 memset(&caps, 0, sizeof(tdm_caps_output));
 693
 694                 ret = func_output->output_get_capability(outputs[i], &caps);
 695                 if (ret != TDM_ERROR_NONE) {
 696                         TDM_ERR("output_get_capability() failed");
 697                         goto no_output;
 698                 }
 699
 700                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 701                         output_connected_count++;
 702
 703                         switch (caps.type) {
 704                         case TDM_OUTPUT_TYPE_DSI:
 705                                 output_dsi = outputs[i];
 706                                 index_dsi = i;
 707                                 break;
 708                         case TDM_OUTPUT_TYPE_LVDS:
 709                                 output_lvds = outputs[i];
 710                                 index_lvds = i;
 711                                 break;
 712                         case TDM_OUTPUT_TYPE_HDMIA:
 713                                 output_hdmia = outputs[i];
 714                                 index_hdmia = i;
 715                                 break;
 716                         case TDM_OUTPUT_TYPE_HDMIB:
 717                                 output_hdmib = outputs[i];
 718                                 index_hdmib = i;
 719                                 break;
 720                         default:
 721                                 break;
 722                         }
 723                 }
 724
 725                 _tdm_display_destroy_caps_output(&caps);
 726         }
 727
 728         /* ordering : main output is first */
 729         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 730           * But hdmi is possible, so set hdmi to main display.
 731           * If connected only one output, it is main output.
 732           * If connected outputs over 2, has priority like below.
 733           * (dsi > lvds > hdmi > else)
 734           */
 735         if (output_connected_count == 0) {
 736                 /* hdmi > dsi > lvds > else */
 737                 if (output_hdmia != NULL)
 738                         _tdm_display_set_main_first(outputs, index_hdmia);
 739                 else if (output_hdmib != NULL)
 740                         _tdm_display_set_main_first(outputs, index_hdmib);
 741                 else if (output_dsi != NULL)
 742                         _tdm_display_set_main_first(outputs, index_dsi);
 743                 else if (output_lvds != NULL)
 744                         _tdm_display_set_main_first(outputs, index_lvds);
 745         } else { /* (output_connected_count > 1) */
 746                 /* dsi > lvds > hdmi > else */
 747                 if (output_dsi != NULL)
 748                         _tdm_display_set_main_first(outputs, index_dsi);
 749                 else if (output_lvds != NULL)
 750                         _tdm_display_set_main_first(outputs, index_lvds);
 751                 else if (output_hdmia != NULL)
 752                         _tdm_display_set_main_first(outputs, index_hdmia);
 753                 else if (output_hdmib != NULL)
 754                         _tdm_display_set_main_first(outputs, index_hdmib);
 755         }
 756
 757         private_module->outputs = outputs;
 758
 759         return outputs;
 760
 761 no_output:
 762         free(outputs);
 763         *count = 0;
 764         return NULL;
 765 }
 766
 767 static tdm_error
 768 _tdm_display_setup(tdm_private_display *private_display)
 769 {
 770         tdm_private_module *private_module = NULL;
 771         tdm_error ret = TDM_ERROR_NONE;
 772         int output_count = 0;
 773         int virtual = 0;
 774         int virtual_hwc_target_buffer_bo_default = 0;
 775
 776         if (private_display->pp_module) {
 777                 ret = _tdm_display_update_caps_pp(private_display->pp_module,
 778                                                                                   &private_display->pp_module->caps_pp);
 779                 if (ret != TDM_ERROR_NONE)
 780                         goto failed_update;
 781         }
 782
 783         if (private_display->capture_module) {
 784                 ret = _tdm_display_update_caps_capture(private_display->capture_module,
 785                                                                                            &private_display->capture_module->caps_capture);
 786                 if (ret != TDM_ERROR_NONE)
 787                         goto failed_update;
 788         }
 789
 790         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 791                 tdm_output **outputs;
 792                 int i, count = 0;
 793
 794                 outputs = _tdm_display_get_ordered_outputs(private_module, &count);
 795
 796                 if (count > 0)
 797                         TDM_GOTO_IF_FAIL(outputs != NULL, failed_update);
 798
 799                 for (i = 0; i < count; i++) {
 800                         ret = tdm_display_update_output(private_module, outputs[i]);
 801                         if (ret != TDM_ERROR_NONE)
 802                                 goto failed_update;
 803                         output_count++;
 804                 }
 805         }
 806
 807         /* At least, the output count should be greater than 0 to ensure tdm_vblank works.
 808          * So we will create a dummy output when backends don't have any output.
 809          * Without destroying a tdm_output object, this dummy output will be replaced with
 810          * a virtual output which is created in runtime.
 811          */
 812         if (output_count == 0) {
 813                 tdm_output **outputs;
 814                 int i, count = 0;
 815
 816                 TDM_INIT_INFO("loading a %s backend", TDM_DUMMY_MODULE);
 817                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 818                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed_update);
 819                 TDM_GOTO_IF_FAIL(private_display->dummy_module != NULL, failed_update);
 820
 821                 private_module = private_display->dummy_module;
 822
 823                 outputs = _tdm_display_get_ordered_outputs(private_module, &count);
 824                 TDM_GOTO_IF_FAIL(count > 0, failed_update);
 825                 TDM_GOTO_IF_FAIL(outputs != NULL, failed_update);
 826
 827                 for (i = 0; i < count; i++) {
 828                         ret = tdm_display_update_output(private_module, outputs[i]);
 829                         if (ret != TDM_ERROR_NONE)
 830                                 goto failed_update;
 831                 }
 832         }
 833
 834         virtual = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_VIRTUAL_OUTPUT, 0);
 835         if (virtual) {
 836                 TDM_INIT_INFO("loading a %s backend", TDM_VIRTUAL_MODULE);
 837                 ret = _tdm_display_load_module_with_file(private_display, TDM_VIRTUAL_MODULE);
 838                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed_update);
 839                 TDM_GOTO_IF_FAIL(private_display->virtual_module != NULL, failed_update);
 840
 841                 virtual_hwc_target_buffer_bo_default = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_VIRTUAL_OUTPUT_HWC_TARGET_BO_DEFAULT, 0);
 842                 if (virtual_hwc_target_buffer_bo_default)
 843                         private_display->virtual_module->use_default_type_bo = 1;
 844         }
 845
 846         return TDM_ERROR_NONE;
 847
 848 failed_update:
 849         _tdm_display_destroy_private_display(private_display);
 850         return ret;
 851 }
 852 /* LCOV_EXCL_STOP */
 853
 854 EXTERN tdm_error
 855 tdm_display_update(tdm_display *dpy)
 856 {
 857         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 858
 859         TDM_DEPRECATED(NULL);
 860
 861         return TDM_ERROR_NONE;
 862 }
 863
 864 int tdm_debug_module;
 865 int tdm_debug_dump;
 866 int tdm_ttrace_module;
 867 int tdm_ttrace_output;
 868
 869 static tdm_private_display *g_private_display;
 870 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 871
 872 /* LCOV_EXCL_START */
 873 static tdm_error
 874 _tdm_display_check_module(tdm_backend_module *module)
 875 {
 876         int tdm_backend_major, tdm_backend_minor;
 877         int backend_module_major, backend_module_minor;
 878
 879         tdm_backend_major = TDM_BACKEND_GET_ABI_MAJOR(TDM_BACKEND_ABI_LATEST_VERSION);
 880         tdm_backend_minor = TDM_BACKEND_GET_ABI_MINOR(TDM_BACKEND_ABI_LATEST_VERSION);
 881
 882         TDM_INFO("TDM Backend ABI version : %d.%d",
 883                          tdm_backend_major, tdm_backend_minor);
 884
 885         if (!module->name) {
 886                 TDM_ERR("TDM backend doesn't have name");
 887                 return TDM_ERROR_BAD_MODULE;
 888         }
 889
 890         if (!module->vendor) {
 891                 TDM_ERR("TDM backend doesn't have vendor");
 892                 return TDM_ERROR_BAD_MODULE;
 893         }
 894
 895         backend_module_major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 896         backend_module_minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 897
 898         TDM_INFO("TDM module name: %s", module->name);
 899         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 900         TDM_INFO("'%s' backend ABI version: %d.%d", module->name, backend_module_major, backend_module_minor);
 901
 902         if (backend_module_major > tdm_backend_major) {
 903                 TDM_ERR("'%s' major version(%d) is newer than %d",
 904                                 module->name, backend_module_major, tdm_backend_major);
 905                 return TDM_ERROR_BAD_MODULE;
 906         }
 907
 908         if (tdm_backend_major == backend_module_major &&
 909                 backend_module_minor > tdm_backend_minor) {
 910                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 911                                 module->name, backend_module_minor, tdm_backend_minor);
 912                 return TDM_ERROR_BAD_MODULE;
 913         }
 914
 915         if (!module->init) {
 916                 TDM_ERR("'%s' doesn't have init function", module->name);
 917                 return TDM_ERROR_BAD_MODULE;
 918         }
 919
 920         if (!module->deinit) {
 921                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 922                 return TDM_ERROR_BAD_MODULE;
 923         }
 924
 925         return TDM_ERROR_NONE;
 926 }
 927
 928 static tdm_error
 929 _tdm_display_check_backend_functions(tdm_private_module *private_module)
 930 {
 931         tdm_func_display *func_display = &private_module->func_display;
 932         tdm_func_output *func_output = &private_module->func_output;
 933         tdm_func_layer *func_layer = &private_module->func_layer;
 934         tdm_error ret;
 935
 936         /* below functions should be implemented in backend side */
 937
 938         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 939         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capability, TDM_ERROR_BAD_MODULE);
 940         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 941         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 942         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 943         TDM_RETURN_VAL_IF_FAIL(func_output->output_wait_vblank, TDM_ERROR_BAD_MODULE);
 944         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_vblank_handler, TDM_ERROR_BAD_MODULE);
 945         TDM_RETURN_VAL_IF_FAIL(func_output->output_commit, TDM_ERROR_BAD_MODULE);
 946         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_commit_handler, TDM_ERROR_BAD_MODULE);
 947         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_mode, TDM_ERROR_BAD_MODULE);
 948         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 949         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_info, TDM_ERROR_BAD_MODULE);
 950         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_info, TDM_ERROR_BAD_MODULE);
 951         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_buffer, TDM_ERROR_BAD_MODULE);
 952         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_unset_buffer, TDM_ERROR_BAD_MODULE);
 953
 954         ret = func_display->display_get_capability(private_module->bdata, &private_module->caps_display);
 955         if (ret != TDM_ERROR_NONE) {
 956                 TDM_ERR("display_get_capability() failed");
 957                 return TDM_ERROR_BAD_MODULE;
 958         }
 959
 960         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 961                 tdm_func_pp *func_pp = &private_module->func_pp;
 962                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 963                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 964                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 965                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 966                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 967         }
 968
 969         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 970                 tdm_func_capture *func_capture = &private_module->func_capture;
 971                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 972                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 973                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 974                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 975                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 976                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 977                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 978                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 979         }
 980
 981         return TDM_ERROR_NONE;
 982 }
 983
 984 static tdm_error
 985 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 986                                                                    const char *file)
 987 {
 988         char path[TDM_PATH_LEN] = {0,};
 989         void *module = NULL;
 990         tdm_backend_module *module_data;
 991         tdm_backend_data *bdata = NULL;
 992         tdm_private_module *private_module = NULL;
 993         tdm_error ret;
 994         double stamp;
 995         int size;
 996
 997         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 998         if (size >= (int)sizeof(path)) {
 999                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
1000                 return TDM_ERROR_BAD_MODULE;
1001         };
1002
1003         private_module = calloc(1, sizeof *private_module);
1004         if (!private_module) {
1005                 TDM_ERR("alloc failed: %m");
1006                 ret = TDM_ERROR_OUT_OF_MEMORY;
1007                 goto failed_load;
1008         }
1009
1010         private_module->private_display = private_display;
1011
1012         stamp = tdm_helper_get_time();
1013
1014         TDM_TRACE_BEGIN("TDM_Load_Backend");
1015         module = dlopen(path, RTLD_LAZY);
1016         if (!module) {
1017                 TDM_ERR("%s", dlerror());
1018                 TDM_TRACE_END();
1019                 ret = TDM_ERROR_NO_MODULE;
1020                 goto failed_load;
1021         }
1022
1023         private_module->module = module;
1024
1025         module_data = dlsym(module, "tdm_backend_module_data");
1026         if (!module_data) {
1027                 TDM_ERR("'%s' doesn't have data object", file);
1028                 ret = TDM_ERROR_BAD_MODULE;
1029                 TDM_TRACE_END();
1030                 goto failed_load;
1031         }
1032         TDM_TRACE_END();
1033
1034         private_module->module_data = module_data;
1035
1036         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
1037
1038         /* check if version, init() and deinit() are valid or not */
1039         ret = _tdm_display_check_module(module_data);
1040         if (ret != TDM_ERROR_NONE) {
1041                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
1042                 goto failed_load;
1043         }
1044
1045         private_display->current_module = private_module;
1046
1047         /* We don't care if backend_data is NULL or not. It's up to backend. */
1048         TDM_TRACE_BEGIN("TDM_Init_Backend");
1049         stamp = tdm_helper_get_time();
1050         TDM_INIT_INFO("init backend");
1051         bdata = module_data->init((tdm_display *)private_display, &ret);
1052         TDM_INIT_INFO("init backend done");
1053         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
1054         TDM_TRACE_END();
1055
1056         private_display->current_module = NULL;
1057
1058         if (!strncmp(file, TDM_DUMMY_MODULE, TDM_NAME_LEN))
1059                 private_display->dummy_module = private_module;
1060
1061         if (!strncmp(file, TDM_VIRTUAL_MODULE, TDM_NAME_LEN))
1062                 private_display->virtual_module = private_module;
1063
1064         private_module->bdata = bdata;
1065
1066         if (ret != TDM_ERROR_NONE) {
1067                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
1068                 goto failed_load;
1069         }
1070
1071         ret = _tdm_display_check_backend_functions(private_module);
1072         if (ret != TDM_ERROR_NONE) {
1073                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
1074                 goto failed_load;
1075         }
1076
1077         LIST_INITHEAD(&private_module->output_list);
1078         LIST_INITHEAD(&private_module->voutput_list);
1079         LIST_INITHEAD(&private_module->pp_list);
1080         LIST_INITHEAD(&private_module->capture_list);
1081
1082         LIST_ADDTAIL(&private_module->link, &private_display->module_list);
1083
1084         TDM_INIT_INFO("Success to load '%s' module", module_data->name);
1085
1086         return TDM_ERROR_NONE;
1087 failed_load:
1088         if (bdata)
1089                 module_data->deinit(bdata);
1090         if (module)
1091                 dlclose(module);
1092         if (private_module)
1093                 free(private_module);
1094         return ret;
1095 }
1096
1097 static tdm_error
1098 _tdm_display_load_modules(tdm_private_display *private_display)
1099 {
1100         const char *module_names;
1101         tdm_error ret = TDM_ERROR_NONE;
1102         char temp[TDM_PATH_LEN];
1103         char *arg;
1104         char *end;
1105
1106         LIST_INITHEAD(&private_display->module_list);
1107
1108         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
1109
1110         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
1111
1112         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1113         while (arg) {
1114                 TDM_INIT_INFO("loading a %s backend", arg);
1115                 ret = _tdm_display_load_module_with_file(private_display, arg);
1116                 if (ret == TDM_ERROR_NONE)
1117                         TDM_INIT_INFO("%s backend loading success", arg);
1118                 else
1119                         TDM_INIT_INFO("%s backend loading failed", arg);
1120                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1121         }
1122
1123         return ret;
1124 }
1125
1126 static void
1127 _tdm_display_unload_modules(tdm_private_display *private_display)
1128 {
1129         tdm_private_module *private_module = NULL, *bb = NULL;
1130
1131         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
1132                 LIST_DEL(&private_module->link);
1133
1134                 if (private_module->module_data)
1135                         private_module->module_data->deinit(private_module->bdata);
1136                 if (private_module->module)
1137                         dlclose(private_module->module);
1138
1139                 free(private_module);
1140         }
1141 }
1142 /* LCOV_EXCL_STOP */
1143
1144 INTERN void *
1145 tdm_display_find_stamp(tdm_private_display *private_display, double stamp)
1146 {
1147         return (void*)g_private_display;
1148 }
1149
1150 EXTERN tdm_display *
1151 tdm_display_init(tdm_error *error)
1152 {
1153         tdm_private_display *private_display = NULL;
1154         const char *str;
1155         tdm_error ret;
1156         double stamp1, stamp2, start;
1157         int mode;
1158
1159         pthread_mutex_lock(&gLock);
1160
1161         if (g_private_display) {
1162                 g_private_display->init_count++;
1163                 pthread_mutex_unlock(&gLock);
1164                 if (error)
1165                         *error = TDM_ERROR_NONE;
1166                 return g_private_display;
1167         }
1168
1169         start = stamp1 = tdm_helper_get_time();
1170
1171         private_display = calloc(1, sizeof(tdm_private_display));
1172         if (!private_display) {
1173                 /* LCOV_EXCL_START */
1174                 ret = TDM_ERROR_OUT_OF_MEMORY;
1175                 TDM_ERR("'private_display != NULL' failed");
1176                 goto failed_alloc;
1177                 /* LCOV_EXCL_STOP */
1178         }
1179
1180         private_display->stamp = tdm_helper_get_time();
1181
1182         LIST_INITHEAD(&private_display->output_create_handler_list);
1183
1184         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
1185         if (str)
1186                 tdm_display_enable_debug_module(str);
1187
1188         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
1189         if (str)
1190                 tdm_display_enable_dump(private_display, str, NULL, NULL);
1191
1192         if (pthread_mutex_init(&private_display->lock, NULL)) {
1193                 /* LCOV_EXCL_START */
1194                 ret = TDM_ERROR_OPERATION_FAILED;
1195                 TDM_ERR("mutex init failed: %m");
1196                 goto failed_mutex_init;
1197                 /* LCOV_EXCL_STOP */
1198         }
1199
1200         _pthread_mutex_lock(&private_display->lock);
1201
1202         stamp2 = tdm_helper_get_time();
1203         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1204         stamp1 = stamp2;
1205
1206         ret = tdm_event_loop_init(private_display);
1207         if (ret != TDM_ERROR_NONE)
1208                 goto failed_event;
1209
1210         stamp2 = tdm_helper_get_time();
1211         TDM_INIT_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1212         stamp1 = stamp2;
1213
1214         ret = tdm_vblank_init(private_display);
1215         if (ret != TDM_ERROR_NONE)
1216                 goto failed_vblank;
1217
1218         ret = tdm_output_init(private_display);
1219         if (ret != TDM_ERROR_NONE)
1220                 goto failed_load;
1221
1222         ret = tdm_hwc_init(private_display);
1223         if (ret != TDM_ERROR_NONE)
1224                 goto failed_load;
1225
1226         ret = tdm_pp_init(private_display);
1227         if (ret != TDM_ERROR_NONE)
1228                 goto failed_load;
1229
1230         ret = tdm_capture_init(private_display);
1231         if (ret != TDM_ERROR_NONE)
1232                 goto failed_load;
1233
1234         ret = _tdm_display_load_modules(private_display);
1235         if (!(ret == TDM_ERROR_NONE || ret == TDM_ERROR_NO_MODULE))
1236                 goto failed_load;
1237
1238         stamp2 = tdm_helper_get_time();
1239         TDM_INIT_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1240         stamp1 = stamp2;
1241
1242 #ifdef INIT_BUFMGR
1243         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1244         if (tdm_drm_fd >= 0) {
1245                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1246                 close(tdm_drm_fd);
1247                 if (!private_display->bufmgr) {
1248                         TDM_ERR("tbm_bufmgr_init failed");
1249                         goto failed_update;
1250                 } else {
1251                         TDM_INFO("tbm_bufmgr_init successed");
1252                 }
1253
1254                 stamp2 = tdm_helper_get_time();
1255                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1256                 stamp1 = stamp2;
1257         }
1258 #endif
1259
1260         TDM_TRACE_BEGIN("TDM_Update_Display");
1261         ret = _tdm_display_setup(private_display);
1262         TDM_INIT_INFO("updating display");
1263         TDM_TRACE_END();
1264         if (ret != TDM_ERROR_NONE)
1265                 goto failed_update;
1266
1267         stamp2 = tdm_helper_get_time();
1268         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1269         stamp1 = stamp2;
1270
1271         tdm_event_loop_create_backend_source(private_display);
1272
1273         private_display->init_count = 1;
1274         g_private_display = private_display;
1275
1276         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1277          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1278          * this functionality can be turned off which means a default mode */
1279         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1280         if (mode > 0) {
1281                 tdm_private_module *b = NULL;
1282                 tdm_private_output *o = NULL;
1283
1284                 /* outputs which support hwc capability can work only
1285                  * if commit_per_vblank mode is '0' (default mode) */
1286                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1287                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1288                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1289                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1290                         }
1291                 }
1292         }
1293
1294         if (error)
1295                 *error = TDM_ERROR_NONE;
1296
1297         tdm_thread_cb_set_find_func(TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, tdm_display_find_stamp);
1298
1299         _pthread_mutex_unlock(&private_display->lock);
1300         pthread_mutex_unlock(&gLock);
1301
1302         TDM_INIT_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1303
1304         return (tdm_display *)private_display;
1305
1306 /* LCOV_EXCL_START */
1307 failed_update:
1308         _tdm_display_unload_modules(private_display);
1309 failed_load:
1310         tdm_vblank_deinit(private_display);
1311 failed_vblank:
1312         tdm_event_loop_stop(private_display);
1313         tdm_event_loop_deinit(private_display);
1314 failed_event:
1315         _pthread_mutex_unlock(&private_display->lock);
1316         pthread_mutex_destroy(&private_display->lock);
1317 failed_mutex_init:
1318         free(private_display);
1319 failed_alloc:
1320         if (error)
1321                 *error = ret;
1322         pthread_mutex_unlock(&gLock);
1323         return NULL;
1324 /* LCOV_EXCL_STOP */
1325 }
1326
1327 EXTERN void
1328 tdm_display_deinit(tdm_display *dpy)
1329 {
1330         tdm_private_display *private_display = dpy;
1331
1332         if (!private_display)
1333                 return;
1334
1335         pthread_mutex_lock(&gLock);
1336
1337         private_display->init_count--;
1338         if (private_display->init_count > 0) {
1339                 pthread_mutex_unlock(&gLock);
1340                 return;
1341         }
1342
1343         /* dont move the position of lock/unlock. all resource should be protected
1344          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1345          * things because it's finalized.
1346          */
1347         _pthread_mutex_lock(&private_display->lock);
1348         tdm_event_loop_stop(private_display);
1349         _pthread_mutex_unlock(&private_display->lock);
1350
1351         tdm_event_loop_deinit(private_display);
1352
1353         /* when private_output is destroyed, all vblank resources of client and server
1354          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1355          * we can unload backend modulues.
1356          */
1357         _tdm_display_destroy_private_display(private_display);
1358         _tdm_display_unload_modules(private_display);
1359
1360         tdm_vblank_deinit(private_display);
1361
1362 #ifdef INIT_BUFMGR
1363         if (private_display->bufmgr)
1364                 tbm_bufmgr_deinit(private_display->bufmgr);
1365 #endif
1366
1367         tbm_drm_helper_unset_tbm_master_fd();
1368
1369         pthread_mutex_destroy(&private_display->lock);
1370         free(private_display);
1371         g_private_display = NULL;
1372
1373         if (tdm_debug_dump_dir) {
1374                 free(tdm_debug_dump_dir);
1375                 tdm_debug_dump_dir = NULL;
1376         }
1377
1378         tdm_config_deinit();
1379
1380         pthread_mutex_unlock(&gLock);
1381
1382         TDM_INFO("done");
1383 }
1384
1385 INTERN tdm_private_display *
1386 tdm_display_get(void)
1387 {
1388         return g_private_display;
1389 }
1390