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