src/tdm.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <boram1288.park@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm_private.h"
  41
  42 pthread_mutex_t tdm_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  43 int tdm_mutex_locked;
  44 const char *tdm_mutex_lock_func;
  45 int tdm_mutex_lock_line;
  46 const char *tdm_mutex_unlock_func;
  47 int tdm_mutex_unlock_line;
  48
  49 pthread_mutex_t tdm_debug_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  50 const char *tdm_debug_mutex_lock_func;
  51 int tdm_debug_mutex_lock_line;
  52
  53 static tdm_error _tdm_display_load_module_with_file(tdm_private_display *private_display, const char *file);
  54
  55 /* LCOV_EXCL_START */
  56 static tdm_private_layer *
  57 _tdm_display_find_private_layer(tdm_private_output *private_output,
  58                                                                 tdm_layer *layer_backend)
  59 {
  60         tdm_private_layer *private_layer = NULL;
  61
  62         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  63                 if (private_layer->layer_backend == layer_backend)
  64                         return private_layer;
  65         }
  66
  67         return NULL;
  68 }
  69
  70 INTERN tdm_private_output *
  71 tdm_display_find_private_output(tdm_private_display *private_display, tdm_output *output_backend)
  72 {
  73         tdm_private_module *private_module = NULL;
  74         tdm_private_output *private_output = NULL;
  75
  76         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
  77                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
  78                         if (private_output->output_backend == output_backend)
  79                                 return private_output;
  80                 }
  81         }
  82
  83         return NULL;
  84 }
  85
  86 INTERN unsigned int
  87 tdm_display_find_empty_output_pipe(tdm_private_display *private_display)
  88 {
  89         tdm_private_module *private_module = NULL;
  90         tdm_private_output *private_output = NULL;
  91         unsigned int pipe = 0;
  92         while (1) {
  93                 int found = 0;
  94                 LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
  95                         LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
  96                                 if (private_output->pipe == pipe) {
  97                                         found = 1;
  98                                         break;
  99                                 }
 100                         }
 101                         if (found)
 102                                 break;
 103                 }
 104
 105                 if (!found)
 106                         break;
 107                 else
 108                         pipe++;
 109         }
 110
 111         return pipe;
 112 }
 113
 114 INTERN void *
 115 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
 116 {
 117         tdm_private_module *private_module = NULL;
 118         tdm_private_output *private_output = NULL;
 119
 120         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 121                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
 122                         if (private_output->stamp == stamp)
 123                                 return private_output;
 124                 }
 125         }
 126
 127         return NULL;
 128 }
 129
 130 INTERN void *
 131 tdm_display_find_private_voutput(tdm_private_display *private_display, double stamp)
 132 {
 133         tdm_private_module *private_module = NULL;
 134         tdm_private_voutput *private_voutput = NULL;
 135         tdm_private_output *private_output = NULL;
 136
 137         private_module = private_display->virtual_module;
 138         if (!private_module) return NULL;
 139
 140         LIST_FOR_EACH_ENTRY(private_voutput, &private_module->voutput_list, link) {
 141                 if (!private_voutput->private_output) continue;
 142                 private_output = private_voutput->private_output;
 143                 if (private_output->stamp == stamp)
 144                         return private_voutput;
 145         }
 146
 147         return NULL;
 148 }
 149
 150 tdm_private_hwc *
 151 tdm_display_find_private_hwc(tdm_private_display *private_display, tdm_hwc *hwc_backend)
 152 {
 153         tdm_private_module *private_module = NULL;
 154         tdm_private_output *private_output = NULL;
 155         tdm_private_hwc *private_hwc = NULL;
 156
 157         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 158                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
 159                         if (!private_output->private_hwc) continue;
 160                         private_hwc = private_output->private_hwc;
 161                         if (private_hwc->hwc_backend == hwc_backend)
 162                                 return private_hwc;
 163                 }
 164         }
 165
 166         return NULL;
 167 }
 168
 169 INTERN void *
 170 tdm_display_find_hwc_stamp(tdm_private_display *private_display, double stamp)
 171 {
 172         tdm_private_module *private_module = NULL;
 173         tdm_private_output *private_output = NULL;
 174         tdm_private_hwc *private_hwc = NULL;
 175
 176         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 177                 LIST_FOR_EACH_ENTRY(private_output, &private_module->output_list, link) {
 178                         if (!private_output->private_hwc) continue;
 179                         private_hwc = private_output->private_hwc;
 180                         if (private_hwc->stamp == stamp)
 181                                 return private_hwc;
 182                 }
 183         }
 184
 185         return NULL;
 186 }
 187
 188 static void
 189 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
 190 {
 191         if (caps_pp->formats)
 192                 free(caps_pp->formats);
 193
 194         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 195 }
 196
 197 static void
 198 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 199 {
 200         if (caps_capture->formats)
 201                 free(caps_capture->formats);
 202
 203         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 204 }
 205
 206 static void
 207 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 208 {
 209         if (caps_layer->formats)
 210                 free(caps_layer->formats);
 211
 212         if (caps_layer->props)
 213                 free(caps_layer->props);
 214
 215         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 216 }
 217
 218 static void
 219 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 220 {
 221         if (caps_output->modes)
 222                 free(caps_output->modes);
 223
 224         if (caps_output->props)
 225                 free(caps_output->props);
 226
 227         memset(caps_output, 0, sizeof(tdm_caps_output));
 228 }
 229
 230 static void
 231 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 232 {
 233         tdm_private_capture *c = NULL, *cc = NULL;
 234
 235         tdm_layer_unset_buffer_internal(private_layer);
 236
 237         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 238         tdm_capture_destroy_internal(c);
 239
 240         _tdm_display_destroy_caps_layer(&private_layer->caps);
 241
 242         /* when destroying layer, someone could check if layer is valid. So delete
 243          * the layer's link at last.
 244          */
 245         LIST_DEL(&private_layer->link);
 246
 247         free(private_layer);
 248 }
 249
 250 INTERN void
 251 tdm_display_destroy_private_output(tdm_private_output *private_output)
 252 {
 253         tdm_private_display *private_display = private_output->private_display;
 254         tdm_private_layer *l = NULL, *ll = NULL;
 255         tdm_private_hwc *private_hwc = NULL;
 256         tdm_private_hwc_window *hw = NULL, *hww = NULL;
 257         tdm_private_capture *c = NULL, *cc = NULL;
 258         tdm_private_output_vblank_handler *v = NULL, *vv = NULL;
 259         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 260         tdm_private_hwc_commit_handler *hm = NULL, *hmm = NULL;
 261         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 262         tdm_private_output_change_handler *h = NULL, *hh = NULL;
 263         tdm_private_output_destroy_handler *dh = NULL, *dhh = NULL;
 264         tdm_error ret;
 265         int mutex_locked = 0;
 266
 267         ret = tdm_output_call_thread_cb_destroy(private_output);
 268         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 269
 270         free(private_output->layers_ptr);
 271
 272         if (private_output->vblank_timeout_timer)
 273                 tdm_event_loop_source_remove(private_output->vblank_timeout_timer);
 274
 275         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 276                 LIST_DEL(&v->link);
 277                 free(v);
 278         }
 279
 280         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 281                 LIST_DEL(&om->link);
 282                 free(om);
 283         }
 284
 285         if (private_output->private_hwc) {
 286                 private_hwc = private_output->private_hwc;
 287                 LIST_FOR_EACH_ENTRY_SAFE(hm, hmm, &private_hwc->hwc_commit_handler_list, link) {
 288                         LIST_DEL(&hm->link);
 289                         free(hm);
 290                 }
 291         } else {
 292                 LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 293                         LIST_DEL(&lm->link);
 294                         free(lm);
 295                 }
 296         }
 297
 298         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 299                 LIST_DEL(&lm->link);
 300                 free(lm);
 301         }
 302
 303         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list, link) {
 304                 LIST_DEL(&h->link);
 305                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_DPMS, NULL, tdm_output_thread_cb_change, h);
 306                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_STATUS, NULL, tdm_output_thread_cb_change, h);
 307                 free(h);
 308         }
 309
 310         LIST_FOR_EACH_ENTRY_SAFE(dh, dhh, &private_output->destroy_handler_list, link) {
 311                 LIST_DEL(&dh->link);
 312                 tdm_thread_cb_remove(dh->private_output, TDM_THREAD_CB_OUTPUT_DESTROY, NULL, tdm_output_thread_cb_destroy, dh);
 313                 free(dh);
 314         }
 315
 316         if (tdm_thread_is_running() && TDM_MUTEX_IS_LOCKED()) mutex_locked = 1;
 317         if (private_output->vblank) {
 318                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 319                 if (mutex_locked) _pthread_mutex_unlock(&private_display->lock);
 320                 tdm_vblank_destroy(private_output->vblank);
 321                 if (mutex_locked) _pthread_mutex_lock(&private_display->lock);
 322         }
 323
 324         if (private_output->ttrace_vblank) {
 325                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 326                 if (mutex_locked) _pthread_mutex_unlock(&private_display->lock);
 327                 tdm_vblank_destroy(private_output->ttrace_vblank);
 328                 if (mutex_locked) _pthread_mutex_lock(&private_display->lock);
 329         }
 330
 331         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 332                 tdm_capture_destroy_internal(c);
 333
 334         if (private_output->private_hwc) {
 335                 private_hwc = private_output->private_hwc;
 336                 LIST_FOR_EACH_ENTRY_SAFE(hw, hww, &private_hwc->hwc_window_list, link)
 337                         tdm_hwc_window_destroy_internal(hw);
 338                 if (private_hwc->display_target_buffer)
 339                         tbm_surface_internal_unref(private_hwc->display_target_buffer);
 340                 free(private_hwc);
 341         } else {
 342                 LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 343                         _tdm_display_destroy_private_layer(l);
 344         }
 345
 346         _tdm_display_destroy_caps_output(&private_output->caps);
 347
 348         /* when destroying output, vblank objects are also destroyed. vblank checks
 349          * if output object is valid. So delete the output's link at last.
 350          */
 351         LIST_DEL(&private_output->link);
 352
 353         private_output->stamp = 0;
 354         free(private_output);
 355 }
 356
 357 static void
 358 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 359 {
 360         tdm_private_module *private_module = NULL, *bb = NULL;
 361         tdm_private_output *o = NULL, *oo = NULL;
 362         tdm_private_pp *p = NULL, *pp = NULL;
 363         tdm_private_output_create_handler *ch = NULL, *chh = NULL;
 364
 365         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
 366                 LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_module->pp_list, link) {
 367                         tdm_pp_destroy_internal(p);
 368                 }
 369
 370                 LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_module->output_list, link) {
 371                         tdm_display_destroy_private_output(o);
 372                 }
 373
 374                 _tdm_display_destroy_caps_pp(&private_module->caps_pp);
 375                 _tdm_display_destroy_caps_capture(&private_module->caps_capture);
 376
 377                 private_module->capabilities = 0;
 378                 private_module->caps_display.max_layer_count = 0;
 379
 380                 if (private_module->outputs) {
 381                         free(private_module->outputs);
 382                         private_module->outputs = NULL;
 383                 }
 384         }
 385
 386         LIST_FOR_EACH_ENTRY_SAFE(ch, chh, &private_display->output_create_handler_list, link) {
 387                 LIST_DEL(&ch->link);
 388                 tdm_thread_cb_remove(ch->private_display, TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, NULL,
 389                                                          tdm_display_thread_cb_output_create, ch);
 390                 free(ch);
 391         }
 392 }
 393
 394 static tdm_error
 395 _tdm_display_update_caps_pp(tdm_private_module *private_module, tdm_caps_pp *caps)
 396 {
 397         tdm_func_display *func_display;
 398         tdm_error ret;
 399
 400         func_display = &private_module->func_display;
 401
 402         if (!func_display->display_get_pp_capability) {
 403                 TDM_ERR("backend(%s) no display_get_pp_capability()", private_module->module_data->name);
 404                 return TDM_ERROR_BAD_MODULE;
 405         }
 406
 407         memset(caps, 0, sizeof(tdm_caps_pp));
 408
 409         ret = func_display->display_get_pp_capability(private_module->bdata, caps);
 410         if (ret != TDM_ERROR_NONE) {
 411                 TDM_ERR("backend(%s) display_get_pp_capability() failed", private_module->module_data->name);
 412                 return TDM_ERROR_BAD_MODULE;
 413         }
 414
 415         return TDM_ERROR_NONE;
 416 }
 417
 418 static tdm_error
 419 _tdm_display_update_caps_capture(tdm_private_module *private_module, tdm_caps_capture *caps)
 420 {
 421         tdm_func_display *func_display;
 422         tdm_error ret;
 423
 424         func_display = &private_module->func_display;
 425
 426         if (!func_display->display_get_capture_capability) {
 427                 TDM_ERR("backend(%s) no display_get_capture_capability()", private_module->module_data->name);
 428                 return TDM_ERROR_BAD_MODULE;
 429         }
 430
 431         ret = func_display->display_get_capture_capability(private_module->bdata, caps);
 432         if (ret != TDM_ERROR_NONE) {
 433                 TDM_ERR("backend(%s) display_get_capture_capability() failed", private_module->module_data->name);
 434                 return TDM_ERROR_BAD_MODULE;
 435         }
 436
 437         return TDM_ERROR_NONE;
 438 }
 439
 440 static tdm_error
 441 _tdm_display_update_caps_layer(tdm_private_module *private_module,
 442                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 443 {
 444         tdm_func_layer *func_layer = &private_module->func_layer;
 445         tdm_error ret;
 446
 447         if (!func_layer->layer_get_capability) {
 448                 TDM_ERR("backend(%s) no layer_get_capability()", private_module->module_data->name);
 449                 return TDM_ERROR_BAD_MODULE;
 450         }
 451
 452         ret = func_layer->layer_get_capability(layer_backend, caps);
 453         if (ret != TDM_ERROR_NONE) {
 454                 TDM_ERR("backend(%s) layer_get_capability() failed", private_module->module_data->name);
 455                 return TDM_ERROR_BAD_MODULE;
 456         }
 457
 458         return TDM_ERROR_NONE;
 459 }
 460
 461 static tdm_error
 462 _tdm_display_update_caps_output(tdm_private_module *private_module, int pipe,
 463                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 464 {
 465         tdm_func_output *func_output = &private_module->func_output;
 466         char temp[TDM_NAME_LEN];
 467         tdm_error ret;
 468         hal_tdm_error hret;
 469         double stamp;
 470         int n;
 471
 472         stamp = tdm_helper_get_time();
 473         if (private_module->use_hal_tdm) {
 474                 hret = hal_tdm_output_get_capability(output_backend, (hal_tdm_caps_output *)caps);
 475                 TDM_DBG("backend(HAL-TDM) backend output_get_capability() time: %.3f ms",
 476                         (tdm_helper_get_time() - stamp) * 1000.0);
 477                 if (hret != HAL_TDM_ERROR_NONE) {
 478                         TDM_ERR("backend(HAL-TDM) output_get_capability() failed");
 479                         return TDM_ERROR_BAD_MODULE;
 480                 }
 481         } else {
 482                 ret = func_output->output_get_capability(output_backend, caps);
 483                 TDM_DBG("backend(%s) backend output_get_capability() time: %.3f ms",
 484                                 private_module->module_data->name, (tdm_helper_get_time() - stamp) * 1000.0);
 485                 if (ret != TDM_ERROR_NONE) {
 486                         TDM_ERR("backend(%s) output_get_capability() failed", private_module->module_data->name);
 487                         return TDM_ERROR_BAD_MODULE;
 488                 }
 489         }
 490
 491         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 492         n = snprintf(temp, sizeof(temp), "%s-%d", caps->model, pipe);
 493         if ((size_t)n >= sizeof(temp)) {
 494                  temp[sizeof(temp) - 1] = '\0';
 495         }
 496
 497         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 498
 499         return TDM_ERROR_NONE;
 500 }
 501
 502 static tdm_error
 503 _tdm_display_update_layer(tdm_private_output *private_output,
 504                                                   tdm_layer *layer_backend, int index)
 505 {
 506         tdm_private_layer *private_layer;
 507         tdm_error ret;
 508
 509         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 510         if (!private_layer) {
 511                 private_layer = calloc(1, sizeof(tdm_private_layer));
 512                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 513
 514                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 515                 LIST_INITHEAD(&private_layer->capture_list);
 516
 517                 private_layer->index = index;
 518                 private_layer->private_module = private_output->private_module;
 519                 private_layer->private_display = private_output->private_display;
 520                 private_layer->private_output = private_output;
 521                 private_layer->layer_backend = layer_backend;
 522                 private_layer->usable = 1;
 523         }
 524
 525         _tdm_display_destroy_caps_layer(&private_layer->caps);
 526
 527         ret = _tdm_display_update_caps_layer(private_output->private_module, layer_backend, &private_layer->caps);
 528         TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 529
 530         return TDM_ERROR_NONE;
 531 }
 532
 533 INTERN tdm_error
 534 tdm_display_update_output(tdm_private_module *private_module, tdm_output *output_backend)
 535 {
 536         tdm_func_output *func_output = &private_module->func_output;
 537         tdm_private_display *private_display = NULL;
 538         tdm_private_output *private_output = NULL;
 539         tdm_layer **layers = NULL;
 540         tdm_private_hwc *private_hwc = NULL;
 541         tdm_hwc *hwc;
 542         int layer_count = 0, i;
 543         tdm_error ret;
 544         unsigned int output_created = 0;
 545
 546         private_display = private_module->private_display;
 547
 548         private_output = tdm_display_find_private_output(private_display, output_backend);
 549         if (!private_output) {
 550                 unsigned int pipe = tdm_display_find_empty_output_pipe(private_display);
 551
 552                 private_output = calloc(1, sizeof(tdm_private_output));
 553                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 554
 555                 private_output->stamp = tdm_helper_get_time();
 556                 while (tdm_display_find_output_stamp(private_display, private_output->stamp))
 557                         private_output->stamp++;
 558
 559                 LIST_ADDTAIL(&private_output->link, &private_module->output_list);
 560
 561                 private_output->private_module = private_module;
 562                 private_output->private_display = private_display;
 563                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 564                 private_output->output_backend = output_backend;
 565                 private_output->pipe = pipe;
 566                 private_output->index = pipe;
 567
 568                 LIST_INITHEAD(&private_output->capture_list);
 569                 LIST_INITHEAD(&private_output->vblank_handler_list);
 570                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 571                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 572                 LIST_INITHEAD(&private_output->destroy_handler_list);
 573                 LIST_INITHEAD(&private_output->change_handler_list);
 574                 LIST_INITHEAD(&private_output->mode_change_request_handler_list);
 575
 576                 if (private_module->use_hal_tdm) {
 577                         hal_tdm_error hret;
 578                         hret = hal_tdm_output_set_status_handler(private_output->output_backend, tdm_output_cb_status_hal_tdm, private_output);
 579                         if (hret == HAL_TDM_ERROR_NONE)
 580                                 private_output->regist_change_cb = 1;
 581                 } else {
 582                         if (func_output->output_set_status_handler) {
 583                                 func_output->output_set_status_handler(private_output->output_backend,
 584                                                                                                            tdm_output_cb_status,
 585                                                                                                            private_output);
 586                                 private_output->regist_change_cb = 1;
 587                         }
 588                 }
 589
 590                 output_created = 1;
 591
 592                 /* NOTE that output modes will be allocated newly after here */
 593                 _tdm_display_destroy_caps_output(&private_output->caps);
 594                 ret = _tdm_display_update_caps_output(private_module, private_output->pipe, output_backend, &private_output->caps);
 595                 TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 596
 597                 if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 598                         private_output->current_mode = NULL;
 599
 600                 /* get the tdm_hwc object */
 601                 if (private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC) {
 602                         if (private_module->use_hal_tdm)
 603                                 hwc = (tdm_hwc *)hal_tdm_output_get_hwc(output_backend, (hal_tdm_error *)&ret);
 604                         else
 605                                 hwc = func_output->output_get_hwc(output_backend, &ret);
 606                         TDM_RETURN_VAL_IF_FAIL(hwc != NULL, ret);
 607
 608                         private_hwc = calloc(1, sizeof(tdm_private_hwc));
 609                         TDM_RETURN_VAL_IF_FAIL(private_hwc != NULL, TDM_ERROR_OUT_OF_MEMORY);
 610
 611                         private_hwc->private_module = private_module;
 612                         private_hwc->private_output = private_output;
 613                         private_hwc->hwc_backend = hwc;
 614                         private_hwc->index = pipe;
 615                         private_hwc->stamp = tdm_helper_get_time();
 616                         while (tdm_display_find_hwc_stamp(private_module->private_display, private_hwc->stamp))
 617                                 private_hwc->stamp++;
 618
 619                         LIST_INITHEAD(&private_hwc->hwc_window_list);
 620                         LIST_INITHEAD(&private_hwc->hwc_commit_handler_list);
 621
 622                         private_output->private_hwc = private_hwc;
 623                 } else {
 624                         LIST_INITHEAD(&private_output->layer_list);
 625                         LIST_INITHEAD(&private_output->layer_commit_handler_list);
 626                 }
 627         } else {
 628                 _tdm_display_destroy_caps_output(&private_output->caps);
 629                 ret = _tdm_display_update_caps_output(private_module, private_output->pipe, output_backend, &private_output->caps);
 630                 TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 631
 632                 if (private_output->caps.status == TDM_OUTPUT_CONN_STATUS_DISCONNECTED)
 633                         private_output->current_mode = NULL;
 634         }
 635
 636         /* do not use the layer object when the tdm_output has the hwc capability */
 637         if ((private_output->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC) == 0) {
 638                 if (private_module->use_hal_tdm) {
 639                         TDM_ERR("hal-tdm not support layer");
 640                         return TDM_ERROR_NOT_IMPLEMENTED;
 641                 }
 642                 layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 643                 if (ret != TDM_ERROR_NONE) {
 644                         free(layers);
 645                         return ret;
 646                 }
 647
 648                 for (i = 0; i < layer_count; i++) {
 649                         ret = _tdm_display_update_layer(private_output, layers[i], i);
 650                         if (ret != TDM_ERROR_NONE) {
 651                                 free(layers);
 652                                 return ret;
 653                         }
 654                 }
 655
 656                 free(layers);
 657         }
 658
 659         if (output_created) {
 660                 ret = tdm_display_call_thread_cb_output_create(private_display, private_output);
 661                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 662         }
 663
 664         return TDM_ERROR_NONE;
 665 }
 666
 667 static void
 668 _tdm_display_set_main_first(tdm_output **outputs, int index)
 669 {
 670         tdm_output *output_tmp = NULL;
 671
 672         if (index == 0)
 673                 return;
 674
 675         output_tmp = outputs[0];
 676         outputs[0] = outputs[index];
 677         outputs[index] = output_tmp;
 678 }
 679
 680 static tdm_output **
 681 _tdm_display_get_ordered_outputs(tdm_private_module *private_module, int *count)
 682 {
 683         tdm_func_display *func_display = &private_module->func_display;
 684         tdm_output **outputs = NULL;
 685         tdm_output *output_dsi = NULL;
 686         tdm_output *output_lvds = NULL;
 687         tdm_output *output_hdmia = NULL;
 688         tdm_output *output_hdmib = NULL;
 689         int i, output_count = 0, output_connected_count = 0;
 690         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 691         tdm_error ret;
 692
 693         /* don't change list order if not init time */
 694         if (private_module->outputs) {
 695                 TDM_ERR("can't change output order");
 696                 return private_module->outputs;
 697         }
 698
 699         if (private_module->use_hal_tdm)
 700                 outputs = (tdm_output **)hal_tdm_display_get_outputs(private_module->htdm_dpy, &output_count, (hal_tdm_error *)&ret);
 701         else
 702                 outputs = func_display->display_get_outputs(private_module->bdata, &output_count, &ret);
 703         if (ret != TDM_ERROR_NONE)
 704                 goto no_output;
 705
 706         *count = output_count;
 707
 708         if (output_count == 0)
 709                 goto no_output;
 710         else if (output_count == 1) {
 711                 private_module->outputs = outputs;
 712                 return outputs;
 713         }
 714
 715         /* count connected outputs */
 716         for (i = 0; i < output_count; i++) {
 717                 tdm_func_output *func_output = &private_module->func_output;
 718                 tdm_caps_output caps;
 719                 memset(&caps, 0, sizeof(tdm_caps_output));
 720
 721                 if (private_module->use_hal_tdm)
 722                         ret = (tdm_error)hal_tdm_output_get_capability(outputs[i], (hal_tdm_caps_output *)&caps);
 723                 else
 724                         ret = func_output->output_get_capability(outputs[i], &caps);
 725                 if (ret != TDM_ERROR_NONE) {
 726                         TDM_ERR("output_get_capability() failed");
 727                         goto no_output;
 728                 }
 729
 730                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 731                         output_connected_count++;
 732
 733                         switch (caps.type) {
 734                         case TDM_OUTPUT_TYPE_DSI:
 735                                 if (output_dsi != NULL) continue;
 736                                 output_dsi = outputs[i];
 737                                 index_dsi = i;
 738                                 break;
 739                         case TDM_OUTPUT_TYPE_LVDS:
 740                                 if (output_lvds != NULL) continue;
 741                                 output_lvds = outputs[i];
 742                                 index_lvds = i;
 743                                 break;
 744                         case TDM_OUTPUT_TYPE_HDMIA:
 745                                 if (output_hdmia != NULL) continue;
 746                                 output_hdmia = outputs[i];
 747                                 index_hdmia = i;
 748                                 break;
 749                         case TDM_OUTPUT_TYPE_HDMIB:
 750                                 if (output_hdmib != NULL) continue;
 751                                 output_hdmib = outputs[i];
 752                                 index_hdmib = i;
 753                                 break;
 754                         default:
 755                                 break;
 756                         }
 757                 }
 758
 759                 _tdm_display_destroy_caps_output(&caps);
 760         }
 761
 762         /* ordering : main output is first */
 763         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 764           * But hdmi is possible, so set hdmi to main display.
 765           * If connected only one output, it is main output.
 766           * If connected outputs over 2, has priority like below.
 767           * (dsi > lvds > hdmi > else)
 768           */
 769         if (output_connected_count == 0) {
 770                 /* hdmi > dsi > lvds > else */
 771                 if (output_hdmia != NULL)
 772                         _tdm_display_set_main_first(outputs, index_hdmia);
 773                 else if (output_hdmib != NULL)
 774                         _tdm_display_set_main_first(outputs, index_hdmib);
 775                 else if (output_dsi != NULL)
 776                         _tdm_display_set_main_first(outputs, index_dsi);
 777                 else if (output_lvds != NULL)
 778                         _tdm_display_set_main_first(outputs, index_lvds);
 779         } else { /* (output_connected_count > 1) */
 780                 /* dsi > lvds > hdmi > else */
 781                 if (output_dsi != NULL)
 782                         _tdm_display_set_main_first(outputs, index_dsi);
 783                 else if (output_lvds != NULL)
 784                         _tdm_display_set_main_first(outputs, index_lvds);
 785                 else if (output_hdmia != NULL)
 786                         _tdm_display_set_main_first(outputs, index_hdmia);
 787                 else if (output_hdmib != NULL)
 788                         _tdm_display_set_main_first(outputs, index_hdmib);
 789         }
 790
 791         private_module->outputs = outputs;
 792
 793         return outputs;
 794
 795 no_output:
 796         free(outputs);
 797         *count = 0;
 798         return NULL;
 799 }
 800
 801 static tdm_error
 802 _tdm_display_setup(tdm_private_display *private_display)
 803 {
 804         tdm_private_module *private_module = NULL;
 805         tdm_error ret = TDM_ERROR_NONE;
 806         int output_count = 0;
 807         int virtual = 0;
 808         int virtual_hwc_target_buffer_bo_default = 0;
 809
 810         if (private_display->pp_module && !private_display->pp_module->use_hal_tdm) {
 811                 ret = _tdm_display_update_caps_pp(private_display->pp_module,
 812                                                                                   &private_display->pp_module->caps_pp);
 813                 if (ret != TDM_ERROR_NONE)
 814                         goto failed_update;
 815         }
 816
 817         if (private_display->capture_module && !private_display->pp_module->use_hal_tdm) {
 818                 ret = _tdm_display_update_caps_capture(private_display->capture_module,
 819                                                                                            &private_display->capture_module->caps_capture);
 820                 if (ret != TDM_ERROR_NONE)
 821                         goto failed_update;
 822         }
 823
 824         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 825                 tdm_output **outputs;
 826                 int i, count = 0;
 827
 828                 outputs = _tdm_display_get_ordered_outputs(private_module, &count);
 829
 830                 if (count > 0)
 831                         TDM_GOTO_IF_FAIL(outputs != NULL, failed_update);
 832
 833                 for (i = 0; i < count; i++) {
 834                         ret = tdm_display_update_output(private_module, outputs[i]);
 835                         if (ret != TDM_ERROR_NONE)
 836                                 goto failed_update;
 837                         output_count++;
 838                 }
 839         }
 840
 841         /* At least, the output count should be greater than 0 to ensure tdm_vblank works.
 842          * So we will create a dummy output when backends don't have any output.
 843          * Without destroying a tdm_output object, this dummy output will be replaced with
 844          * a virtual output which is created in runtime.
 845          */
 846         if (output_count == 0) {
 847                 tdm_output **outputs;
 848                 int i, count = 0;
 849
 850                 TDM_INIT_INFO("loading a %s backend", TDM_DUMMY_MODULE);
 851                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 852                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed_update);
 853                 TDM_GOTO_IF_FAIL(private_display->dummy_module != NULL, failed_update);
 854
 855                 private_module = private_display->dummy_module;
 856
 857                 outputs = _tdm_display_get_ordered_outputs(private_module, &count);
 858                 TDM_GOTO_IF_FAIL(count > 0, failed_update);
 859                 TDM_GOTO_IF_FAIL(outputs != NULL, failed_update);
 860
 861                 for (i = 0; i < count; i++) {
 862                         ret = tdm_display_update_output(private_module, outputs[i]);
 863                         if (ret != TDM_ERROR_NONE)
 864                                 goto failed_update;
 865                 }
 866         }
 867
 868         virtual = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_VIRTUAL_OUTPUT, 0);
 869         if (virtual) {
 870                 TDM_INIT_INFO("loading a %s backend", TDM_VIRTUAL_MODULE);
 871                 ret = _tdm_display_load_module_with_file(private_display, TDM_VIRTUAL_MODULE);
 872                 TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, failed_update);
 873                 TDM_GOTO_IF_FAIL(private_display->virtual_module != NULL, failed_update);
 874
 875                 virtual_hwc_target_buffer_bo_default = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_VIRTUAL_OUTPUT_HWC_TARGET_BO_DEFAULT, 0);
 876                 if (virtual_hwc_target_buffer_bo_default)
 877                         private_display->virtual_module->use_default_type_bo = 1;
 878         }
 879
 880         return TDM_ERROR_NONE;
 881
 882 failed_update:
 883         _tdm_display_destroy_private_display(private_display);
 884         return ret;
 885 }
 886 /* LCOV_EXCL_STOP */
 887
 888 EXTERN tdm_error
 889 tdm_display_update(tdm_display *dpy)
 890 {
 891         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 892
 893         TDM_DEPRECATED(NULL);
 894
 895         return TDM_ERROR_NONE;
 896 }
 897
 898 int tdm_debug_module;
 899 int tdm_debug_dump;
 900 int tdm_ttrace_module;
 901 int tdm_ttrace_output;
 902
 903 static tdm_private_display *g_private_display;
 904 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 905
 906 /* LCOV_EXCL_START */
 907 static tdm_error
 908 _tdm_display_load_hal_backend(tdm_private_display *private_display)
 909 {
 910         hal_tdm_backend *hal_tdm = NULL;
 911         hal_tdm_display *hal_tdm_dpy = NULL;
 912         tdm_private_module *private_module = NULL;
 913         hal_tdm_event_source **event_sources = NULL;
 914         hal_tdm_caps_display caps;
 915         hal_tdm_caps_pp pp_caps;
 916         hal_tdm_caps_capture capture_caps;
 917         hal_tdm_error hret;
 918         tdm_error error;
 919         int num = 0;
 920
 921         hal_tdm = hal_tdm_get_backend(&hret);
 922         if (hal_tdm == NULL || hret != HAL_TDM_ERROR_NONE) {
 923                 TDM_ERR("failed hal_tdm_get_backend");
 924                 return TDM_ERROR_NO_MODULE;
 925         }
 926
 927         private_module = calloc(1, sizeof *private_module);
 928         if (private_module == NULL) {
 929                 TDM_ERR("failed: alloc");
 930                 hal_tdm_put_backend(hal_tdm);
 931                 return TDM_ERROR_OUT_OF_MEMORY;
 932         }
 933
 934         hal_tdm_dpy = hal_tdm_backend_get_display(hal_tdm, &hret);
 935         if (hal_tdm_dpy == NULL || hret != HAL_TDM_ERROR_NONE) {
 936                 TDM_ERR("failed hal_tdm_backend_get_display");
 937                 goto fail;
 938         }
 939
 940         if (hal_tdm_display_get_capability(hal_tdm_dpy, &caps) != HAL_TDM_ERROR_NONE) {
 941                 TDM_ERR("failed hal_tdm_display_get_capability");
 942                 goto fail;
 943         }
 944
 945         private_module->use_hal_tdm = 1;
 946         private_module->htdm_backend = hal_tdm;
 947         private_module->htdm_dpy = hal_tdm_dpy;
 948         private_module->private_display = private_display;
 949         private_display->current_module = private_module;
 950
 951         if (hal_tdm_display_get_pp_capability(hal_tdm_dpy, &pp_caps) == HAL_TDM_ERROR_NONE) {
 952                 private_display->pp_module = private_module;
 953                 private_module->caps_pp.capabilities = (tdm_pp_capability)pp_caps.capabilities;
 954                 private_module->caps_pp.format_count = pp_caps.format_count;
 955                 private_module->caps_pp.formats = pp_caps.formats;
 956                 private_module->caps_pp.min_w = pp_caps.min_w;
 957                 private_module->caps_pp.min_h = pp_caps.min_h;
 958                 private_module->caps_pp.max_w = pp_caps.max_w;
 959                 private_module->caps_pp.max_h = pp_caps.max_h;
 960                 private_module->caps_pp.preferred_align = pp_caps.preferred_align;
 961                 private_module->caps_pp.preferred_align_vertical = pp_caps.preferred_align_vertical;
 962                 private_module->caps_pp.max_attach_count = pp_caps.max_attach_count;
 963         }
 964         if (hal_tdm_display_get_capture_capability(hal_tdm_dpy, &capture_caps) == HAL_TDM_ERROR_NONE) {
 965                 private_display->capture_module = private_module;
 966                 private_module->caps_capture.capabilities = (tdm_capture_capability)capture_caps.capabilities;
 967                 private_module->caps_capture.format_count = capture_caps.format_count;
 968                 private_module->caps_capture.formats = capture_caps.formats;
 969                 private_module->caps_capture.min_w = capture_caps.min_w;
 970                 private_module->caps_capture.min_h = capture_caps.min_h;
 971                 private_module->caps_capture.max_w = capture_caps.max_w;
 972                 private_module->caps_capture.max_h = capture_caps.max_h;
 973                 private_module->caps_capture.preferred_align = capture_caps.preferred_align;
 974                 private_module->caps_capture.max_attach_count = capture_caps.max_attach_count;
 975         }
 976
 977         LIST_INITHEAD(&private_module->output_list);
 978         LIST_INITHEAD(&private_module->voutput_list);
 979         LIST_INITHEAD(&private_module->pp_list);
 980         LIST_INITHEAD(&private_module->capture_list);
 981
 982         LIST_ADDTAIL(&private_module->link, &private_display->module_list);
 983
 984         event_sources = hal_tdm_backend_get_event_sources(hal_tdm, &num, &hret);
 985         if (num != 0 && hret == HAL_TDM_ERROR_NONE) {
 986                 private_module->event_source_num = num;
 987                 for (int i = 0; i < num; i++) {
 988                         hal_tdm_event_source *event_source = event_sources[i];
 989                         private_module->htdm_event_source[i] = tdm_event_loop_add_fd_handler(private_display, event_source->event_fd,
 990                                                                           TDM_EVENT_LOOP_READABLE, (tdm_event_loop_fd_handler)event_source->func, event_source->user_data, &error);
 991                         break;
 992                 }
 993         }
 994
 995         TDM_INIT_INFO("use hal tdm");
 996
 997         return TDM_ERROR_NONE;
 998
 999 fail:
1000         hal_tdm_put_backend(hal_tdm);
1001         free(private_module);
1002         return TDM_ERROR_NO_MODULE;
1003 }
1004
1005 static tdm_error
1006 _tdm_display_check_module(tdm_backend_module *module)
1007 {
1008         int tdm_backend_major, tdm_backend_minor;
1009         int backend_module_major, backend_module_minor;
1010
1011         tdm_backend_major = TDM_BACKEND_GET_ABI_MAJOR(TDM_BACKEND_ABI_LATEST_VERSION);
1012         tdm_backend_minor = TDM_BACKEND_GET_ABI_MINOR(TDM_BACKEND_ABI_LATEST_VERSION);
1013
1014         TDM_INFO("TDM Backend ABI version : %d.%d",
1015                          tdm_backend_major, tdm_backend_minor);
1016
1017         if (!module->name) {
1018                 TDM_ERR("TDM backend doesn't have name");
1019                 return TDM_ERROR_BAD_MODULE;
1020         }
1021
1022         if (!module->vendor) {
1023                 TDM_ERR("TDM backend doesn't have vendor");
1024                 return TDM_ERROR_BAD_MODULE;
1025         }
1026
1027         backend_module_major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
1028         backend_module_minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
1029
1030         TDM_INFO("TDM module name: %s", module->name);
1031         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
1032         TDM_INFO("'%s' backend ABI version: %d.%d", module->name, backend_module_major, backend_module_minor);
1033
1034         if (backend_module_major > tdm_backend_major) {
1035                 TDM_ERR("'%s' major version(%d) is newer than %d",
1036                                 module->name, backend_module_major, tdm_backend_major);
1037                 return TDM_ERROR_BAD_MODULE;
1038         }
1039
1040         if (tdm_backend_major == backend_module_major &&
1041                 backend_module_minor > tdm_backend_minor) {
1042                 TDM_ERR("'%s' minor version(%d) is newer than %d",
1043                                 module->name, backend_module_minor, tdm_backend_minor);
1044                 return TDM_ERROR_BAD_MODULE;
1045         }
1046
1047         if (!module->init) {
1048                 TDM_ERR("'%s' doesn't have init function", module->name);
1049                 return TDM_ERROR_BAD_MODULE;
1050         }
1051
1052         if (!module->deinit) {
1053                 TDM_ERR("'%s' doesn't have deinit function", module->name);
1054                 return TDM_ERROR_BAD_MODULE;
1055         }
1056
1057         return TDM_ERROR_NONE;
1058 }
1059
1060 static tdm_error
1061 _tdm_display_check_backend_functions(tdm_private_module *private_module)
1062 {
1063         tdm_func_display *func_display = &private_module->func_display;
1064         tdm_func_output *func_output = &private_module->func_output;
1065         tdm_func_layer *func_layer = &private_module->func_layer;
1066         tdm_error ret;
1067
1068         /* below functions should be implemented in backend side */
1069
1070         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
1071         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capability, TDM_ERROR_BAD_MODULE);
1072         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
1073         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
1074         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
1075         TDM_RETURN_VAL_IF_FAIL(func_output->output_wait_vblank, TDM_ERROR_BAD_MODULE);
1076         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_vblank_handler, TDM_ERROR_BAD_MODULE);
1077         TDM_RETURN_VAL_IF_FAIL(func_output->output_commit, TDM_ERROR_BAD_MODULE);
1078         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_commit_handler, TDM_ERROR_BAD_MODULE);
1079         TDM_RETURN_VAL_IF_FAIL(func_output->output_set_mode, TDM_ERROR_BAD_MODULE);
1080         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
1081         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_info, TDM_ERROR_BAD_MODULE);
1082         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_info, TDM_ERROR_BAD_MODULE);
1083         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_set_buffer, TDM_ERROR_BAD_MODULE);
1084         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_unset_buffer, TDM_ERROR_BAD_MODULE);
1085
1086         ret = func_display->display_get_capability(private_module->bdata, &private_module->caps_display);
1087         if (ret != TDM_ERROR_NONE) {
1088                 TDM_ERR("display_get_capability() failed");
1089                 return TDM_ERROR_BAD_MODULE;
1090         }
1091
1092         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
1093                 tdm_func_pp *func_pp = &private_module->func_pp;
1094                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
1095                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
1096                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
1097                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
1098                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
1099         }
1100
1101         if (private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
1102                 tdm_func_capture *func_capture = &private_module->func_capture;
1103                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
1104                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
1105                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
1106                 if (private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
1107                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
1108                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
1109                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
1110                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
1111         }
1112
1113         return TDM_ERROR_NONE;
1114 }
1115
1116 static tdm_error
1117 _tdm_display_load_module_with_file(tdm_private_display *private_display,
1118                                                                    const char *file)
1119 {
1120         char path[TDM_PATH_LEN] = {0,};
1121         void *module = NULL;
1122         tdm_backend_module *module_data;
1123         tdm_backend_data *bdata = NULL;
1124         tdm_private_module *private_module = NULL;
1125         tdm_error ret;
1126         double stamp;
1127         int size;
1128
1129         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
1130         if (size >= (int)sizeof(path)) {
1131                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
1132                 return TDM_ERROR_BAD_MODULE;
1133         };
1134
1135         private_module = calloc(1, sizeof *private_module);
1136         if (!private_module) {
1137                 TDM_ERR("alloc failed: %m");
1138                 ret = TDM_ERROR_OUT_OF_MEMORY;
1139                 goto failed_load;
1140         }
1141
1142         private_module->private_display = private_display;
1143
1144         stamp = tdm_helper_get_time();
1145
1146         TDM_TRACE_BEGIN("TDM_Load_Backend");
1147         module = dlopen(path, RTLD_LAZY);
1148         if (!module) {
1149                 TDM_ERR("%s", dlerror());
1150                 TDM_TRACE_END();
1151                 ret = TDM_ERROR_NO_MODULE;
1152                 goto failed_load;
1153         }
1154
1155         private_module->module = module;
1156
1157         module_data = dlsym(module, "tdm_backend_module_data");
1158         if (!module_data) {
1159                 TDM_ERR("'%s' doesn't have data object", file);
1160                 ret = TDM_ERROR_BAD_MODULE;
1161                 TDM_TRACE_END();
1162                 goto failed_load;
1163         }
1164         TDM_TRACE_END();
1165
1166         private_module->module_data = module_data;
1167
1168         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
1169
1170         /* check if version, init() and deinit() are valid or not */
1171         ret = _tdm_display_check_module(module_data);
1172         if (ret != TDM_ERROR_NONE) {
1173                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
1174                 goto failed_load;
1175         }
1176
1177         private_display->current_module = private_module;
1178
1179         /* We don't care if backend_data is NULL or not. It's up to backend. */
1180         TDM_TRACE_BEGIN("TDM_Init_Backend");
1181         stamp = tdm_helper_get_time();
1182         TDM_INIT_INFO("init backend");
1183         bdata = module_data->init((tdm_display *)private_display, &ret);
1184         TDM_INIT_INFO("init backend done");
1185         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
1186         TDM_TRACE_END();
1187
1188         private_display->current_module = NULL;
1189
1190         if (!strncmp(file, TDM_DUMMY_MODULE, TDM_NAME_LEN))
1191                 private_display->dummy_module = private_module;
1192
1193         if (!strncmp(file, TDM_VIRTUAL_MODULE, TDM_NAME_LEN))
1194                 private_display->virtual_module = private_module;
1195
1196         private_module->bdata = bdata;
1197
1198         if (ret != TDM_ERROR_NONE) {
1199                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
1200                 goto failed_load;
1201         }
1202
1203         ret = _tdm_display_check_backend_functions(private_module);
1204         if (ret != TDM_ERROR_NONE) {
1205                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
1206                 goto failed_load;
1207         }
1208
1209         LIST_INITHEAD(&private_module->output_list);
1210         LIST_INITHEAD(&private_module->voutput_list);
1211         LIST_INITHEAD(&private_module->pp_list);
1212         LIST_INITHEAD(&private_module->capture_list);
1213
1214         LIST_ADDTAIL(&private_module->link, &private_display->module_list);
1215
1216         TDM_INIT_INFO("Success to load '%s' module", module_data->name);
1217
1218         return TDM_ERROR_NONE;
1219 failed_load:
1220         if (bdata)
1221                 module_data->deinit(bdata);
1222         if (module)
1223                 dlclose(module);
1224         if (private_module)
1225                 free(private_module);
1226         return ret;
1227 }
1228
1229 static tdm_error
1230 _tdm_display_load_modules(tdm_private_display *private_display)
1231 {
1232         const char *module_names;
1233         tdm_error ret = TDM_ERROR_NONE;
1234         char temp[TDM_PATH_LEN];
1235         char *arg;
1236         char *end;
1237
1238         LIST_INITHEAD(&private_display->module_list);
1239
1240         if (_tdm_display_load_hal_backend(private_display) == TDM_ERROR_NONE) {
1241                 TDM_INIT_INFO("use hal tdm");
1242                 return ret;
1243         }
1244
1245         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
1246
1247         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
1248
1249         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1250         while (arg) {
1251                 TDM_INIT_INFO("loading a %s backend", arg);
1252                 ret = _tdm_display_load_module_with_file(private_display, arg);
1253                 if (ret == TDM_ERROR_NONE)
1254                         TDM_INIT_INFO("%s backend loading success", arg);
1255                 else
1256                         TDM_INIT_INFO("%s backend loading failed", arg);
1257                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1258         }
1259
1260         return ret;
1261 }
1262
1263 static void
1264 _tdm_display_unload_modules(tdm_private_display *private_display)
1265 {
1266         tdm_private_module *private_module = NULL, *bb = NULL;
1267
1268         LIST_FOR_EACH_ENTRY_SAFE(private_module, bb, &private_display->module_list, link) {
1269                 LIST_DEL(&private_module->link);
1270                 if (private_module->use_hal_tdm) {
1271                         if (private_module->event_source_num != 0) {
1272                                 for (int i = 0; i < private_module->event_source_num; i++) {
1273                                         tdm_event_loop_source *htdm_event_source = private_module->htdm_event_source[i];
1274                                         tdm_event_loop_source_remove(htdm_event_source);
1275                                 }
1276                         }
1277                         hal_tdm_put_backend(private_module->htdm_backend);
1278                         free(private_module);
1279                         continue;
1280                 }
1281
1282                 if (private_module->module_data)
1283                         private_module->module_data->deinit(private_module->bdata);
1284                 if (private_module->module)
1285                         dlclose(private_module->module);
1286
1287                 free(private_module);
1288         }
1289 }
1290 /* LCOV_EXCL_STOP */
1291
1292 INTERN void *
1293 tdm_display_find_stamp(tdm_private_display *private_display, double stamp)
1294 {
1295         return (void*)g_private_display;
1296 }
1297
1298 EXTERN tdm_display *
1299 tdm_display_init(tdm_error *error)
1300 {
1301         tdm_private_display *private_display = NULL;
1302         const char *str;
1303         tdm_error ret;
1304         double stamp1, stamp2, start;
1305         int mode;
1306
1307         pthread_mutex_lock(&gLock);
1308
1309         if (g_private_display) {
1310                 g_private_display->init_count++;
1311                 pthread_mutex_unlock(&gLock);
1312                 if (error)
1313                         *error = TDM_ERROR_NONE;
1314                 return g_private_display;
1315         }
1316
1317         start = stamp1 = tdm_helper_get_time();
1318
1319         private_display = calloc(1, sizeof(tdm_private_display));
1320         if (!private_display) {
1321                 /* LCOV_EXCL_START */
1322                 ret = TDM_ERROR_OUT_OF_MEMORY;
1323                 TDM_ERR("'private_display != NULL' failed");
1324                 goto failed_alloc;
1325                 /* LCOV_EXCL_STOP */
1326         }
1327
1328         private_display->stamp = tdm_helper_get_time();
1329
1330         LIST_INITHEAD(&private_display->output_create_handler_list);
1331
1332         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
1333         if (str)
1334                 tdm_display_enable_debug_module(str);
1335
1336         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
1337         if (str)
1338                 tdm_display_enable_dump(private_display, str, NULL, NULL);
1339
1340         if (pthread_mutex_init(&private_display->lock, NULL)) {
1341                 /* LCOV_EXCL_START */
1342                 ret = TDM_ERROR_OPERATION_FAILED;
1343                 TDM_ERR("mutex init failed: %m");
1344                 goto failed_mutex_init;
1345                 /* LCOV_EXCL_STOP */
1346         }
1347
1348         _pthread_mutex_lock(&private_display->lock);
1349
1350         stamp2 = tdm_helper_get_time();
1351         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1352         stamp1 = stamp2;
1353
1354         ret = tdm_event_loop_init(private_display);
1355         if (ret != TDM_ERROR_NONE)
1356                 goto failed_event;
1357
1358         stamp2 = tdm_helper_get_time();
1359         TDM_INIT_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1360         stamp1 = stamp2;
1361
1362         ret = tdm_vblank_init(private_display);
1363         if (ret != TDM_ERROR_NONE)
1364                 goto failed_vblank;
1365
1366         ret = tdm_output_init(private_display);
1367         if (ret != TDM_ERROR_NONE)
1368                 goto failed_load;
1369
1370         ret = tdm_hwc_init(private_display);
1371         if (ret != TDM_ERROR_NONE)
1372                 goto failed_load;
1373
1374         ret = tdm_pp_init(private_display);
1375         if (ret != TDM_ERROR_NONE)
1376                 goto failed_load;
1377
1378         ret = tdm_capture_init(private_display);
1379         if (ret != TDM_ERROR_NONE)
1380                 goto failed_load;
1381
1382         ret = _tdm_display_load_modules(private_display);
1383         if (!(ret == TDM_ERROR_NONE || ret == TDM_ERROR_NO_MODULE))
1384                 goto failed_load;
1385
1386         stamp2 = tdm_helper_get_time();
1387         TDM_INIT_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1388         stamp1 = stamp2;
1389
1390 #ifdef INIT_BUFMGR
1391         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1392         if (tdm_drm_fd >= 0) {
1393                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1394                 close(tdm_drm_fd);
1395                 if (!private_display->bufmgr) {
1396                         TDM_ERR("tbm_bufmgr_init failed");
1397                         goto failed_update;
1398                 } else {
1399                         TDM_INFO("tbm_bufmgr_init successed");
1400                 }
1401
1402                 stamp2 = tdm_helper_get_time();
1403                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1404                 stamp1 = stamp2;
1405         }
1406 #endif
1407
1408         TDM_TRACE_BEGIN("TDM_Update_Display");
1409         ret = _tdm_display_setup(private_display);
1410         TDM_INIT_INFO("updating display");
1411         TDM_TRACE_END();
1412         if (ret != TDM_ERROR_NONE)
1413                 goto failed_update;
1414
1415         stamp2 = tdm_helper_get_time();
1416         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1417         stamp1 = stamp2;
1418
1419         tdm_event_loop_create_backend_source(private_display);
1420
1421         private_display->init_count = 1;
1422         g_private_display = private_display;
1423
1424         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1425          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1426          * this functionality can be turned off which means a default mode */
1427         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1428         if (mode > 0) {
1429                 tdm_private_module *b = NULL;
1430                 tdm_private_output *o = NULL;
1431
1432                 /* outputs which support hwc capability can work only
1433                  * if commit_per_vblank mode is '0' (default mode) */
1434                 LIST_FOR_EACH_ENTRY(b, &private_display->module_list, link) {
1435                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1436                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1437                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1438                         }
1439                 }
1440         }
1441
1442         if (error)
1443                 *error = TDM_ERROR_NONE;
1444
1445         tdm_thread_cb_set_find_func(TDM_THREAD_CB_DISPLAY_OUTPUT_CREATE, tdm_display_find_stamp);
1446
1447         _pthread_mutex_unlock(&private_display->lock);
1448         pthread_mutex_unlock(&gLock);
1449
1450         TDM_INIT_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1451
1452         return (tdm_display *)private_display;
1453
1454 /* LCOV_EXCL_START */
1455 failed_update:
1456         _tdm_display_unload_modules(private_display);
1457 failed_load:
1458         tdm_vblank_deinit(private_display);
1459 failed_vblank:
1460         tdm_event_loop_stop(private_display);
1461         tdm_event_loop_deinit(private_display);
1462 failed_event:
1463         _pthread_mutex_unlock(&private_display->lock);
1464         pthread_mutex_destroy(&private_display->lock);
1465 failed_mutex_init:
1466         free(private_display);
1467 failed_alloc:
1468         if (error)
1469                 *error = ret;
1470         pthread_mutex_unlock(&gLock);
1471         return NULL;
1472 /* LCOV_EXCL_STOP */
1473 }
1474
1475 EXTERN void
1476 tdm_display_deinit(tdm_display *dpy)
1477 {
1478         tdm_private_display *private_display = dpy;
1479
1480         if (!private_display)
1481                 return;
1482
1483         pthread_mutex_lock(&gLock);
1484
1485         private_display->init_count--;
1486         if (private_display->init_count > 0) {
1487                 pthread_mutex_unlock(&gLock);
1488                 return;
1489         }
1490
1491         /* dont move the position of lock/unlock. all resource should be protected
1492          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1493          * things because it's finalized.
1494          */
1495         _pthread_mutex_lock(&private_display->lock);
1496         tdm_event_loop_stop(private_display);
1497         _pthread_mutex_unlock(&private_display->lock);
1498
1499         tdm_event_loop_deinit(private_display);
1500
1501         /* when private_output is destroyed, all vblank resources of client and server
1502          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1503          * we can unload backend modulues.
1504          */
1505         _tdm_display_destroy_private_display(private_display);
1506         _tdm_display_unload_modules(private_display);
1507
1508         tdm_vblank_deinit(private_display);
1509
1510 #ifdef INIT_BUFMGR
1511         if (private_display->bufmgr)
1512                 tbm_bufmgr_deinit(private_display->bufmgr);
1513 #endif
1514
1515         tbm_drm_helper_unset_tbm_master_fd();
1516
1517         pthread_mutex_destroy(&private_display->lock);
1518         free(private_display);
1519         g_private_display = NULL;
1520
1521         if (tdm_debug_dump_dir) {
1522                 free(tdm_debug_dump_dir);
1523                 tdm_debug_dump_dir = NULL;
1524         }
1525
1526         tdm_config_deinit();
1527
1528         pthread_mutex_unlock(&gLock);
1529
1530         TDM_INFO("done");
1531 }
1532
1533 INTERN tdm_private_display *
1534 tdm_display_get(void)
1535 {
1536         return g_private_display;
1537 }
1538