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                 free(private_hwc);
 339         } else {
 340                 LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 341                         _tdm_display_destroy_private_layer(l);
 342         }
 343
 344         _tdm_display_destroy_caps_output(&private_output->caps);
 345
 346         /* when destroying output, vblank objects are also destroyed. vblank checks
 347          * if output object is valid. So delete the output's link at last.
 348          */
 349         LIST_DEL(&private_output->link);
 350
 351         private_output->stamp = 0;
 352         free(private_output);
 353 }
 354
 355 static void
 356 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 357 {
 358         tdm_private_module *private_module = NULL, *bb = NULL;
 359         tdm_private_output *o = NULL, *oo = NULL;
 360         tdm_private_pp *p = NULL, *pp = NULL;
 361         tdm_private_output_create_handler *ch = NULL, *chh = NULL;
 362
 363         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
 364                 LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_module->pp_list, link) {
 365                         tdm_pp_destroy_internal(p);
 366                 }
 367
 368                 LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_module->output_list, link) {
 369                         tdm_display_destroy_private_output(o);
 370                 }
 371
 372                 _tdm_display_destroy_caps_pp(&private_module->caps_pp);
 373                 _tdm_display_destroy_caps_capture(&private_module->caps_capture);
 374
 375                 private_module->capabilities = 0;
 376                 private_module->caps_display.max_layer_count = 0;
 377
 378                 if (private_module->outputs) {
 379                         free(private_module->outputs);
 380                         private_module->outputs = NULL;
 381                 }
 382         }
 383
 384         LIST_FOR_EACH_ENTRY_SAFE(ch, chh, &private_display->output_create_handler_list, link) {
 385                 LIST_DEL(&ch->link);
 386                 tdm_thread_cb_remove(ch->private_display, TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, NULL,
 387                                                          tdm_display_thread_cb_output_create, ch);
 388                 free(ch);
 389         }
 390 }
 391
 392 static tdm_error
 393 _tdm_display_update_caps_pp(tdm_private_module *private_module, tdm_caps_pp *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_pp_capability) {
 401                 TDM_ERR("backend(%s) no display_get_pp_capability()", private_module->module_data->name);
 402                 return TDM_ERROR_BAD_MODULE;
 403         }
 404
 405         ret = func_display->display_get_pp_capability(private_module->bdata, caps);
 406         if (ret != TDM_ERROR_NONE) {
 407                 TDM_ERR("backend(%s) display_get_pp_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_capture(tdm_private_module *private_module, tdm_caps_capture *caps)
 416 {
 417         tdm_func_display *func_display;
 418         tdm_error ret;
 419
 420         func_display = &private_module->func_display;
 421
 422         if (!func_display->display_get_capture_capability) {
 423                 TDM_ERR("backend(%s) no display_get_capture_capability()", private_module->module_data->name);
 424                 return TDM_ERROR_BAD_MODULE;
 425         }
 426
 427         ret = func_display->display_get_capture_capability(private_module->bdata, caps);
 428         if (ret != TDM_ERROR_NONE) {
 429                 TDM_ERR("backend(%s) display_get_capture_capability() failed", private_module->module_data->name);
 430                 return TDM_ERROR_BAD_MODULE;
 431         }
 432
 433         return TDM_ERROR_NONE;
 434 }
 435
 436 static tdm_error
 437 _tdm_display_update_caps_layer(tdm_private_module *private_module,
 438                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 439 {
 440         tdm_func_layer *func_layer = &private_module->func_layer;
 441         tdm_error ret;
 442
 443         if (!func_layer->layer_get_capability) {
 444                 TDM_ERR("backend(%s) no layer_get_capability()", private_module->module_data->name);
 445                 return TDM_ERROR_BAD_MODULE;
 446         }
 447
 448         ret = func_layer->layer_get_capability(layer_backend, caps);
 449         if (ret != TDM_ERROR_NONE) {
 450                 TDM_ERR("backend(%s) layer_get_capability() failed", private_module->module_data->name);
 451                 return TDM_ERROR_BAD_MODULE;
 452         }
 453
 454         return TDM_ERROR_NONE;
 455 }
 456
 457 static tdm_error
 458 _tdm_display_update_caps_output(tdm_private_module *private_module, int pipe,
 459                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 460 {
 461         tdm_func_output *func_output = &private_module->func_output;
 462         char temp[TDM_NAME_LEN];
 463         tdm_error ret;
 464         double stamp;
 465
 466         stamp = tdm_helper_get_time();
 467         ret = func_output->output_get_capability(output_backend, caps);
 468         TDM_DBG("backend(%s) backend output_get_capability() time: %.3f ms",
 469                         private_module->module_data->name, (tdm_helper_get_time() - stamp) * 1000.0);
 470
 471         if (ret != TDM_ERROR_NONE) {
 472                 TDM_ERR("backend(%s) output_get_capability() failed", private_module->module_data->name);
 473                 return TDM_ERROR_BAD_MODULE;
 474         }
 475
 476         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 477         snprintf(temp, TDM_NAME_LEN, "%s-%d", caps->model, pipe);
 478         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 479
 480         return TDM_ERROR_NONE;
 481 }
 482
 483 static tdm_error
 484 _tdm_display_update_layer(tdm_private_output *private_output,
 485                                                   tdm_layer *layer_backend, int index)
 486 {
 487         tdm_private_layer *private_layer;
 488         tdm_error ret;
 489
 490         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 491         if (!private_layer) {
 492                 private_layer = calloc(1, sizeof(tdm_private_layer));
 493                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 494
 495                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 496                 LIST_INITHEAD(&private_layer->capture_list);
 497
 498                 private_layer->index = index;
 499                 private_layer->private_module = private_output->private_module;
 500                 private_layer->private_display = private_output->private_display;
 501                 private_layer->private_output = private_output;
 502                 private_layer->layer_backend = layer_backend;
 503                 private_layer->usable = 1;
 504         }
 505
 506         _tdm_display_destroy_caps_layer(&private_layer->caps);
 507
 508         ret = _tdm_display_update_caps_layer(private_output->private_module, layer_backend, &private_layer->caps);
 509         TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 510
 511         return TDM_ERROR_NONE;
 512 }
 513
 514 INTERN tdm_error
 515 tdm_display_update_output(tdm_private_module *private_module, tdm_output *output_backend)
 516 {
 517         tdm_func_output *func_output = &private_module->func_output;
 518         tdm_private_display *private_display = NULL;
 519         tdm_private_output *private_output = NULL;
 520         tdm_layer **layers = NULL;
 521         tdm_private_hwc *private_hwc = NULL;
 522         tdm_hwc *hwc;
 523         int layer_count = 0, i;
 524         tdm_error ret;
 525         unsigned int output_created = 0;
 526
 527         private_display = private_module->private_display;
 528
 529         private_output = tdm_display_find_private_output(private_display, output_backend);
 530         if (!private_output) {
 531                 unsigned int pipe = tdm_display_find_empty_output_pipe(private_display);
 532
 533                 private_output = calloc(1, sizeof(tdm_private_output));
 534                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 535
 536                 private_output->stamp = tdm_helper_get_time();
 537                 while (tdm_display_find_output_stamp(private_display, private_output->stamp))
 538                         private_output->stamp++;
 539
 540                 LIST_ADDTAIL(&private_output->link, &private_module->output_list);
 541
 542                 private_output->private_module = private_module;
 543                 private_output->private_display = private_display;
 544                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 545                 private_output->output_backend = output_backend;
 546                 private_output->pipe = pipe;
 547                 private_output->index = pipe;
 548
 549                 LIST_INITHEAD(&private_output->capture_list);
 550                 LIST_INITHEAD(&private_output->vblank_handler_list);
 551                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 552                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 553                 LIST_INITHEAD(&private_output->destroy_handler_list);
 554                 LIST_INITHEAD(&private_output->change_handler_list);
 555                 LIST_INITHEAD(&private_output->mode_change_request_handler_list);
 556
 557                 if (func_output->output_set_status_handler) {
 558                         func_output->output_set_status_handler(private_output->output_backend,
 559                                                                                                    tdm_output_cb_status,
 560                                                                                                    private_output);
 561                         private_output->regist_change_cb = 1;
 562                 }
 563
 564                 output_created = 1;
 565
 566                 /* NOTE that output modes will be allocated newly after here */
 567                 _tdm_display_destroy_caps_output(&private_output->caps);
 568                 ret = _tdm_display_update_caps_output(private_module, private_output->pipe, output_backend, &private_output->caps);
 569                 TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 570
 571                 if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 572                         private_output->current_mode = NULL;
 573
 574                 /* get the tdm_hwc object */
 575                 if (private_output->caps.capabilities&TDM_OUTPUT_CAPABILITY_HWC) {
 576                         hwc = func_output->output_get_hwc(output_backend, &ret);
 577                         TDM_RETURN_VAL_IF_FAIL(hwc != NULL, ret);
 578
 579                         private_hwc = calloc(1, sizeof(tdm_private_hwc));
 580                         TDM_RETURN_VAL_IF_FAIL(private_hwc != NULL, TDM_ERROR_OUT_OF_MEMORY);
 581
 582                         private_hwc->private_module = private_module;
 583                         private_hwc->private_output = private_output;
 584                         private_hwc->hwc_backend = hwc;
 585                         private_hwc->index = pipe;
 586                         private_hwc->stamp = tdm_helper_get_time();
 587                         while (tdm_display_find_hwc_stamp(private_module->private_display, private_hwc->stamp))
 588                                 private_hwc->stamp++;
 589
 590                         LIST_INITHEAD(&private_hwc->hwc_window_list);
 591                         LIST_INITHEAD(&private_hwc->hwc_commit_handler_list);
 592
 593                         private_output->private_hwc = private_hwc;
 594                 } else {
 595                         LIST_INITHEAD(&private_output->layer_list);
 596                         LIST_INITHEAD(&private_output->layer_commit_handler_list);
 597                 }
 598         } else {
 599                 _tdm_display_destroy_caps_output(&private_output->caps);
 600                 ret = _tdm_display_update_caps_output(private_module, private_output->pipe, output_backend, &private_output->caps);
 601                 TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 602
 603                 if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 604                         private_output->current_mode = NULL;
 605         }
 606
 607         /* do not use the layer object when the tdm_output has the hwc capability */
 608         if ((private_output->caps.capabilities&TDM_OUTPUT_CAPABILITY_HWC) == 0) {
 609                 layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 610                 if (ret != TDM_ERROR_NONE) {
 611                         free(layers);
 612                         return ret;
 613                 }
 614
 615                 for (i = 0; i < layer_count; i++) {
 616                         ret = _tdm_display_update_layer(private_output, layers[i], i);
 617                         if (ret != TDM_ERROR_NONE) {
 618                                 free(layers);
 619                                 return ret;
 620                         }
 621                 }
 622
 623                 free(layers);
 624         }
 625
 626         if (output_created) {
 627                 ret = tdm_display_call_thread_cb_output_create(private_display, private_output);
 628                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 629         }
 630
 631         return TDM_ERROR_NONE;
 632 }
 633
 634 static void
 635 _tdm_display_set_main_first(tdm_output **outputs, int index)
 636 {
 637         tdm_output *output_tmp = NULL;
 638
 639         if (index == 0)
 640                 return;
 641
 642         output_tmp = outputs[0];
 643         outputs[0] = outputs[index];
 644         outputs[index] = output_tmp;
 645 }
 646
 647 static tdm_output **
 648 _tdm_display_get_ordered_outputs(tdm_private_module *private_module, int *count)
 649 {
 650         tdm_func_display *func_display = &private_module->func_display;
 651         tdm_output **outputs = NULL;
 652         tdm_output *output_dsi = NULL;
 653         tdm_output *output_lvds = NULL;
 654         tdm_output *output_hdmia = NULL;
 655         tdm_output *output_hdmib = NULL;
 656         int i, output_count = 0, output_connected_count = 0;
 657         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 658         tdm_error ret;
 659
 660         /* don't change list order if not init time */
 661         if (private_module->outputs) {
 662                 TDM_ERR("can't change output order");
 663                 return private_module->outputs;
 664         }
 665
 666         outputs = func_display->display_get_outputs(private_module->bdata, &output_count, &ret);
 667         if (ret != TDM_ERROR_NONE)
 668                 goto no_output;
 669
 670         *count = output_count;
 671
 672         if (output_count == 0)
 673                 goto no_output;
 674         else if (output_count == 1) {
 675                 private_module->outputs = outputs;
 676                 return outputs;
 677         }
 678
 679         /* count connected outputs */
 680         for (i = 0; i < output_count; i++) {
 681                 tdm_func_output *func_output = &private_module->func_output;
 682                 tdm_caps_output caps;
 683                 memset(&caps, 0, sizeof(tdm_caps_output));
 684
 685                 ret = func_output->output_get_capability(outputs[i], &caps);
 686                 if (ret != TDM_ERROR_NONE) {
 687                         TDM_ERR("output_get_capability() failed");
 688                         goto no_output;
 689                 }
 690
 691                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 692                         output_connected_count++;
 693
 694                         switch (caps.type) {
 695                         case TDM_OUTPUT_TYPE_DSI:
 696                                 output_dsi = outputs[i];
 697                                 index_dsi = i;
 698                                 break;
 699                         case TDM_OUTPUT_TYPE_LVDS:
 700                                 output_lvds = outputs[i];
 701                                 index_lvds = i;
 702                                 break;
 703                         case TDM_OUTPUT_TYPE_HDMIA:
 704                                 output_hdmia = outputs[i];
 705                                 index_hdmia = i;
 706                                 break;
 707                         case TDM_OUTPUT_TYPE_HDMIB:
 708                                 output_hdmib = outputs[i];
 709                                 index_hdmib = i;
 710                                 break;
 711                         default:
 712                                 break;
 713                         }
 714                 }
 715
 716                 _tdm_display_destroy_caps_output(&caps);
 717         }
 718
 719         /* ordering : main output is first */
 720         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 721           * But hdmi is possible, so set hdmi to main display.
 722           * If connected only one output, it is main output.
 723           * If connected outputs over 2, has priority like below.
 724           * (dsi > lvds > hdmi > else)
 725           */
 726         if (output_connected_count == 0) {
 727                 /* hdmi > dsi > lvds > else */
 728                 if (output_hdmia != NULL)
 729                         _tdm_display_set_main_first(outputs, index_hdmia);
 730                 else if (output_hdmib != NULL)
 731                         _tdm_display_set_main_first(outputs, index_hdmib);
 732                 else if (output_dsi != NULL)
 733                         _tdm_display_set_main_first(outputs, index_dsi);
 734                 else if (output_lvds != NULL)
 735                         _tdm_display_set_main_first(outputs, index_lvds);
 736         } else { /* (output_connected_count > 1) */
 737                 /* dsi > lvds > hdmi > else */
 738                 if (output_dsi != NULL)
 739                         _tdm_display_set_main_first(outputs, index_dsi);
 740                 else if (output_lvds != NULL)
 741                         _tdm_display_set_main_first(outputs, index_lvds);
 742                 else if (output_hdmia != NULL)
 743                         _tdm_display_set_main_first(outputs, index_hdmia);
 744                 else if (output_hdmib != NULL)
 745                         _tdm_display_set_main_first(outputs, index_hdmib);
 746         }
 747
 748         private_module->outputs = outputs;
 749
 750         return outputs;
 751
 752 no_output:
 753         free(outputs);
 754         *count = 0;
 755         return NULL;
 756 }
 757
 758 static tdm_error
 759 _tdm_display_setup(tdm_private_display *private_display)
 760 {
 761         tdm_private_module *private_module = NULL;
 762         tdm_error ret = TDM_ERROR_NONE;
 763         int output_count = 0;
 764         int virtual = 0;
 765
 766         if (private_display->pp_module) {
 767                 ret = _tdm_display_update_caps_pp(private_display->pp_module,
 768                                                                                   &private_display->pp_module->caps_pp);
 769                 if (ret != TDM_ERROR_NONE)
 770                         goto failed_update;
 771         }
 772
 773         if (private_display->capture_module) {
 774                 ret = _tdm_display_update_caps_capture(private_display->capture_module,
 775                                                                                            &private_display->capture_module->caps_capture);
 776                 if (ret != TDM_ERROR_NONE)
 777                         goto failed_update;
 778         }
 779
 780         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 781                 tdm_output **outputs;
 782                 int i, count = 0;
 783
 784                 outputs = _tdm_display_get_ordered_outputs(private_module, &count);
 785
 786                 if (count > 0)
 787                         TDM_GOTO_IF_FAIL(outputs != NULL, failed_update);
 788
 789                 for (i = 0; i < count; i++) {
 790                         ret = tdm_display_update_output(private_module, outputs[i]);
 791                         if (ret != TDM_ERROR_NONE)
 792                                 goto failed_update;
 793                         output_count++;
 794                 }
 795         }
 796
 797         /* At least, the output count should be greater than 0 to ensure tdm_vblank works.
 798          * So we will create a dummy output when backends don't have any output.
 799          * Without destroying a tdm_output object, this dummy output will be replaced with
 800          * a virtual output which is created in runtime.
 801          */
 802         if (output_count == 0) {
 803                 tdm_output **outputs;
 804                 int i, count = 0;
 805
 806                 TDM_INFO("loading a %s backend", TDM_DUMMY_MODULE);
 807                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 808                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed_update);
 809                 TDM_GOTO_IF_FAIL(private_display->dummy_module != NULL, failed_update);
 810
 811                 private_module = private_display->dummy_module;
 812
 813                 outputs = _tdm_display_get_ordered_outputs(private_module, &count);
 814                 TDM_GOTO_IF_FAIL(count > 0, failed_update);
 815                 TDM_GOTO_IF_FAIL(outputs != NULL, failed_update);
 816
 817                 for (i = 0; i < count; i++) {
 818                         ret = tdm_display_update_output(private_module, outputs[i]);
 819                         if (ret != TDM_ERROR_NONE)
 820                                 goto failed_update;
 821                 }
 822         }
 823
 824         virtual = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_VIRTUAL_OUTPUT, 0);
 825         if (virtual) {
 826                 TDM_INFO("loading a %s backend", TDM_VIRTUAL_MODULE);
 827                 ret = _tdm_display_load_module_with_file(private_display, TDM_VIRTUAL_MODULE);
 828                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed_update);
 829                 TDM_GOTO_IF_FAIL(private_display->virtual_module != NULL, failed_update);
 830         }
 831
 832         return TDM_ERROR_NONE;
 833
 834 failed_update:
 835         _tdm_display_destroy_private_display(private_display);
 836         return ret;
 837 }
 838 /* LCOV_EXCL_STOP */
 839
 840 EXTERN tdm_error
 841 tdm_display_update(tdm_display *dpy)
 842 {
 843         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 844
 845         TDM_DEPRECATED(NULL);
 846
 847         return TDM_ERROR_NONE;
 848 }
 849
 850 int tdm_debug_module;
 851 int tdm_debug_dump;
 852 int tdm_ttrace_module;
 853 int tdm_ttrace_output;
 854
 855 static tdm_private_display *g_private_display;
 856 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 857
 858 /* LCOV_EXCL_START */
 859 static tdm_error
 860 _tdm_display_check_module(tdm_backend_module *module)
 861 {
 862         int tdm_backend_major, tdm_backend_minor;
 863         int backend_module_major, backend_module_minor;
 864
 865         tdm_backend_major = TDM_BACKEND_GET_ABI_MAJOR(TDM_BACKEND_ABI_LATEST_VERSION);
 866         tdm_backend_minor = TDM_BACKEND_GET_ABI_MINOR(TDM_BACKEND_ABI_LATEST_VERSION);
 867
 868         TDM_INFO("TDM Backend ABI version : %d.%d",
 869                          tdm_backend_major, tdm_backend_minor);
 870
 871         if (!module->name) {
 872                 TDM_ERR("TDM backend doesn't have name");
 873                 return TDM_ERROR_BAD_MODULE;
 874         }
 875
 876         if (!module->vendor) {
 877                 TDM_ERR("TDM backend doesn't have vendor");
 878                 return TDM_ERROR_BAD_MODULE;
 879         }
 880
 881         backend_module_major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 882         backend_module_minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 883
 884         TDM_INFO("TDM module name: %s", module->name);
 885         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 886         TDM_INFO("'%s' backend ABI version: %d.%d", module->name, backend_module_major, backend_module_minor);
 887
 888         if (backend_module_major > tdm_backend_major) {
 889                 TDM_ERR("'%s' major version(%d) is newer than %d",
 890                                 module->name, backend_module_major, tdm_backend_major);
 891                 return TDM_ERROR_BAD_MODULE;
 892         }
 893
 894         if (tdm_backend_major == backend_module_major &&
 895                 backend_module_minor > tdm_backend_minor) {
 896                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 897                                 module->name, backend_module_minor, tdm_backend_minor);
 898                 return TDM_ERROR_BAD_MODULE;
 899         }
 900
 901         if (!module->init) {
 902                 TDM_ERR("'%s' doesn't have init function", module->name);
 903                 return TDM_ERROR_BAD_MODULE;
 904         }
 905
 906         if (!module->deinit) {
 907                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 908                 return TDM_ERROR_BAD_MODULE;
 909         }
 910
 911         return TDM_ERROR_NONE;
 912 }
 913
 914 static tdm_error
 915 _tdm_display_check_backend_functions(tdm_private_module *private_module)
 916 {
 917         tdm_func_display *func_display = &private_module->func_display;
 918         tdm_func_output *func_output = &private_module->func_output;
 919         tdm_func_layer *func_layer = &private_module->func_layer;
 920         tdm_error ret;
 921
 922         /* below functions should be implemented in backend side */
 923
 924         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 925         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capability, TDM_ERROR_BAD_MODULE);
 926         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 927         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 928         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 929         TDM_RETURN_VAL_IF_FAIL(func_output->output_wait_vblank, TDM_ERROR_BAD_MODULE);
 930         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_vblank_handler, TDM_ERROR_BAD_MODULE);
 931         TDM_RETURN_VAL_IF_FAIL(func_output->output_commit, TDM_ERROR_BAD_MODULE);
 932         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_commit_handler, TDM_ERROR_BAD_MODULE);
 933         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_mode, TDM_ERROR_BAD_MODULE);
 934         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 935         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_info, TDM_ERROR_BAD_MODULE);
 936         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_info, TDM_ERROR_BAD_MODULE);
 937         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_buffer, TDM_ERROR_BAD_MODULE);
 938         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_unset_buffer, TDM_ERROR_BAD_MODULE);
 939
 940         ret = func_display->display_get_capability(private_module->bdata, &private_module->caps_display);
 941         if (ret != TDM_ERROR_NONE) {
 942                 TDM_ERR("display_get_capability() failed");
 943                 return TDM_ERROR_BAD_MODULE;
 944         }
 945
 946         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 947                 tdm_func_pp *func_pp = &private_module->func_pp;
 948                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 949                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 950                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 951                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 952                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 953         }
 954
 955         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 956                 tdm_func_capture *func_capture = &private_module->func_capture;
 957                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 958                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 959                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 960                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 961                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 962                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 963                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 964                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 965         }
 966
 967         return TDM_ERROR_NONE;
 968 }
 969
 970 static tdm_error
 971 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 972                                                                    const char *file)
 973 {
 974         char path[TDM_PATH_LEN] = {0,};
 975         void *module = NULL;
 976         tdm_backend_module *module_data;
 977         tdm_backend_data *bdata = NULL;
 978         tdm_private_module *private_module = NULL;
 979         tdm_error ret;
 980         double stamp;
 981         int size;
 982
 983         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 984         if (size >= (int)sizeof(path)) {
 985                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 986                 return TDM_ERROR_BAD_MODULE;
 987         };
 988
 989         private_module = calloc(1, sizeof *private_module);
 990         if (!private_module) {
 991                 TDM_ERR("alloc failed: %m");
 992                 ret = TDM_ERROR_OUT_OF_MEMORY;
 993                 goto failed_load;
 994         }
 995
 996         private_module->private_display = private_display;
 997
 998         stamp = tdm_helper_get_time();
 999
1000         TDM_TRACE_BEGIN("TDM_Load_Backend");
1001         module = dlopen(path, RTLD_LAZY);
1002         if (!module) {
1003                 TDM_ERR("%s", dlerror());
1004                 TDM_TRACE_END();
1005                 ret = TDM_ERROR_NO_MODULE;
1006                 goto failed_load;
1007         }
1008
1009         private_module->module = module;
1010
1011         module_data = dlsym(module, "tdm_backend_module_data");
1012         if (!module_data) {
1013                 TDM_ERR("'%s' doesn't have data object", file);
1014                 ret = TDM_ERROR_BAD_MODULE;
1015                 TDM_TRACE_END();
1016                 goto failed_load;
1017         }
1018         TDM_TRACE_END();
1019
1020         private_module->module_data = module_data;
1021
1022         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
1023
1024         /* check if version, init() and deinit() are valid or not */
1025         ret = _tdm_display_check_module(module_data);
1026         if (ret != TDM_ERROR_NONE) {
1027                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
1028                 goto failed_load;
1029         }
1030
1031         private_display->current_module = private_module;
1032
1033         /* We don't care if backend_data is NULL or not. It's up to backend. */
1034         TDM_TRACE_BEGIN("TDM_Init_Backend");
1035         stamp = tdm_helper_get_time();
1036         bdata = module_data->init((tdm_display *)private_display, &ret);
1037         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
1038         TDM_TRACE_END();
1039
1040         private_display->current_module = NULL;
1041
1042         if (!strncmp(file, TDM_DUMMY_MODULE, TDM_NAME_LEN))
1043                 private_display->dummy_module = private_module;
1044
1045         if (!strncmp(file, TDM_VIRTUAL_MODULE, TDM_NAME_LEN))
1046                 private_display->virtual_module = private_module;
1047
1048         private_module->bdata = bdata;
1049
1050         if (ret != TDM_ERROR_NONE) {
1051                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
1052                 goto failed_load;
1053         }
1054
1055         ret = _tdm_display_check_backend_functions(private_module);
1056         if (ret != TDM_ERROR_NONE) {
1057                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
1058                 goto failed_load;
1059         }
1060
1061         LIST_INITHEAD(&private_module->output_list);
1062         LIST_INITHEAD(&private_module->voutput_list);
1063         LIST_INITHEAD(&private_module->pp_list);
1064         LIST_INITHEAD(&private_module->capture_list);
1065
1066         LIST_ADDTAIL(&private_module->link, &private_display->module_list);
1067
1068         TDM_INFO("Success to load '%s' module", module_data->name);
1069
1070         return TDM_ERROR_NONE;
1071 failed_load:
1072         if (bdata)
1073                 module_data->deinit(bdata);
1074         if (module)
1075                 dlclose(module);
1076         if (private_module)
1077                 free(private_module);
1078         return ret;
1079 }
1080
1081 static tdm_error
1082 _tdm_display_load_modules(tdm_private_display *private_display)
1083 {
1084         const char *module_names;
1085         tdm_error ret = TDM_ERROR_NONE;
1086         char temp[TDM_PATH_LEN];
1087         char *arg;
1088         char *end;
1089
1090         LIST_INITHEAD(&private_display->module_list);
1091
1092         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
1093
1094         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
1095
1096         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1097         while (arg) {
1098                 TDM_INFO("loading a %s backend", arg);
1099                 ret = _tdm_display_load_module_with_file(private_display, arg);
1100                 if (ret == TDM_ERROR_NONE)
1101                         TDM_INFO("%s backend loading success", arg);
1102                 else
1103                         TDM_INFO("%s backend loading failed", arg);
1104                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1105         }
1106
1107         return ret;
1108 }
1109
1110 static void
1111 _tdm_display_unload_modules(tdm_private_display *private_display)
1112 {
1113         tdm_private_module *private_module = NULL, *bb = NULL;
1114
1115         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
1116                 LIST_DEL(&private_module->link);
1117
1118                 if (private_module->module_data)
1119                         private_module->module_data->deinit(private_module->bdata);
1120                 if (private_module->module)
1121                         dlclose(private_module->module);
1122
1123                 free(private_module);
1124         }
1125 }
1126 /* LCOV_EXCL_STOP */
1127
1128 INTERN void *
1129 tdm_display_find_stamp(tdm_private_display *private_display, double stamp)
1130 {
1131         return (void*)g_private_display;
1132 }
1133
1134 EXTERN tdm_display *
1135 tdm_display_init(tdm_error *error)
1136 {
1137         tdm_private_display *private_display = NULL;
1138         const char *str;
1139         tdm_error ret;
1140         double stamp1, stamp2, start;
1141         int mode;
1142
1143         pthread_mutex_lock(&gLock);
1144
1145         if (g_private_display) {
1146                 g_private_display->init_count++;
1147                 pthread_mutex_unlock(&gLock);
1148                 if (error)
1149                         *error = TDM_ERROR_NONE;
1150                 return g_private_display;
1151         }
1152
1153         start = stamp1 = tdm_helper_get_time();
1154
1155         private_display = calloc(1, sizeof(tdm_private_display));
1156         if (!private_display) {
1157                 /* LCOV_EXCL_START */
1158                 ret = TDM_ERROR_OUT_OF_MEMORY;
1159                 TDM_ERR("'private_display != NULL' failed");
1160                 goto failed_alloc;
1161                 /* LCOV_EXCL_STOP */
1162         }
1163
1164         private_display->stamp = tdm_helper_get_time();
1165
1166         LIST_INITHEAD(&private_display->output_create_handler_list);
1167
1168         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
1169         if (str)
1170                 tdm_display_enable_debug_module(str);
1171
1172         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
1173         if (str)
1174                 tdm_display_enable_dump(private_display, str, NULL, NULL);
1175
1176         if (pthread_mutex_init(&private_display->lock, NULL)) {
1177                 /* LCOV_EXCL_START */
1178                 ret = TDM_ERROR_OPERATION_FAILED;
1179                 TDM_ERR("mutex init failed: %m");
1180                 goto failed_mutex_init;
1181                 /* LCOV_EXCL_STOP */
1182         }
1183
1184         _pthread_mutex_lock(&private_display->lock);
1185
1186         stamp2 = tdm_helper_get_time();
1187         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1188         stamp1 = stamp2;
1189
1190         ret = tdm_event_loop_init(private_display);
1191         if (ret != TDM_ERROR_NONE)
1192                 goto failed_event;
1193
1194         stamp2 = tdm_helper_get_time();
1195         TDM_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1196         stamp1 = stamp2;
1197
1198         ret = tdm_vblank_init(private_display);
1199         if (ret != TDM_ERROR_NONE)
1200                 goto failed_vblank;
1201
1202         ret = tdm_output_init(private_display);
1203         if (ret != TDM_ERROR_NONE)
1204                 goto failed_load;
1205
1206         ret = tdm_hwc_init(private_display);
1207         if (ret != TDM_ERROR_NONE)
1208                 goto failed_load;
1209
1210         ret = tdm_pp_init(private_display);
1211         if (ret != TDM_ERROR_NONE)
1212                 goto failed_load;
1213
1214         ret = tdm_capture_init(private_display);
1215         if (ret != TDM_ERROR_NONE)
1216                 goto failed_load;
1217
1218         ret = _tdm_display_load_modules(private_display);
1219         if (!(ret == TDM_ERROR_NONE || ret == TDM_ERROR_NO_MODULE))
1220                 goto failed_load;
1221
1222         stamp2 = tdm_helper_get_time();
1223         TDM_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1224         stamp1 = stamp2;
1225
1226 #ifdef INIT_BUFMGR
1227         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1228         if (tdm_drm_fd >= 0) {
1229                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1230                 close(tdm_drm_fd);
1231                 if (!private_display->bufmgr) {
1232                         TDM_ERR("tbm_bufmgr_init failed");
1233                         goto failed_update;
1234                 } else {
1235                         TDM_INFO("tbm_bufmgr_init successed");
1236                 }
1237
1238                 stamp2 = tdm_helper_get_time();
1239                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1240                 stamp1 = stamp2;
1241         }
1242 #endif
1243
1244         TDM_TRACE_BEGIN("TDM_Update_Display");
1245         ret = _tdm_display_setup(private_display);
1246         TDM_TRACE_END();
1247         if (ret != TDM_ERROR_NONE)
1248                 goto failed_update;
1249
1250         stamp2 = tdm_helper_get_time();
1251         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1252         stamp1 = stamp2;
1253
1254         tdm_event_loop_create_backend_source(private_display);
1255
1256         private_display->init_count = 1;
1257         g_private_display = private_display;
1258
1259         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1260          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1261          * this functionality can be turned off which means a default mode */
1262         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1263         if (mode > 0) {
1264                 tdm_private_module *b = NULL;
1265                 tdm_private_output *o = NULL;
1266
1267                 /* outputs which support hwc capability can work only
1268                  * if commit_per_vblank mode is '0' (default mode) */
1269                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1270                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1271                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1272                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1273                         }
1274                 }
1275         }
1276
1277         if (error)
1278                 *error = TDM_ERROR_NONE;
1279
1280         tdm_thread_cb_set_find_func(TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, tdm_display_find_stamp);
1281
1282         _pthread_mutex_unlock(&private_display->lock);
1283         pthread_mutex_unlock(&gLock);
1284
1285         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1286
1287         return (tdm_display *)private_display;
1288
1289 /* LCOV_EXCL_START */
1290 failed_update:
1291         _tdm_display_unload_modules(private_display);
1292 failed_load:
1293         tdm_vblank_deinit(private_display);
1294 failed_vblank:
1295         tdm_event_loop_stop(private_display);
1296         tdm_event_loop_deinit(private_display);
1297 failed_event:
1298         _pthread_mutex_unlock(&private_display->lock);
1299         pthread_mutex_destroy(&private_display->lock);
1300 failed_mutex_init:
1301         free(private_display);
1302 failed_alloc:
1303         if (error)
1304                 *error = ret;
1305         pthread_mutex_unlock(&gLock);
1306         return NULL;
1307 /* LCOV_EXCL_STOP */
1308 }
1309
1310 EXTERN void
1311 tdm_display_deinit(tdm_display *dpy)
1312 {
1313         tdm_private_display *private_display = dpy;
1314
1315         if (!private_display)
1316                 return;
1317
1318         pthread_mutex_lock(&gLock);
1319
1320         private_display->init_count--;
1321         if (private_display->init_count > 0) {
1322                 pthread_mutex_unlock(&gLock);
1323                 return;
1324         }
1325
1326         /* dont move the position of lock/unlock. all resource should be protected
1327          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1328          * things because it's finalized.
1329          */
1330         _pthread_mutex_lock(&private_display->lock);
1331         tdm_event_loop_stop(private_display);
1332         _pthread_mutex_unlock(&private_display->lock);
1333
1334         tdm_event_loop_deinit(private_display);
1335
1336         /* when private_output is destroyed, all vblank resources of client and server
1337          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1338          * we can unload backend modulues.
1339          */
1340         _tdm_display_destroy_private_display(private_display);
1341         _tdm_display_unload_modules(private_display);
1342
1343         tdm_vblank_deinit(private_display);
1344
1345 #ifdef INIT_BUFMGR
1346         if (private_display->bufmgr)
1347                 tbm_bufmgr_deinit(private_display->bufmgr);
1348 #endif
1349
1350         tbm_drm_helper_unset_tbm_master_fd();
1351
1352         pthread_mutex_destroy(&private_display->lock);
1353         free(private_display);
1354         g_private_display = NULL;
1355
1356         if (tdm_debug_dump_dir) {
1357                 free(tdm_debug_dump_dir);
1358                 tdm_debug_dump_dir = NULL;
1359         }
1360
1361         tdm_config_deinit();
1362
1363         pthread_mutex_unlock(&gLock);
1364
1365         TDM_INFO("done");
1366 }
1367
1368 INTERN tdm_private_display *
1369 tdm_display_get(void)
1370 {
1371         return g_private_display;
1372 }
1373