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 <sc1.lim@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 /* LCOV_EXCL_START */
  50 static tdm_private_layer *
  51 _tdm_display_find_private_layer(tdm_private_output *private_output,
  52                                                                 tdm_layer *layer_backend)
  53 {
  54         tdm_private_layer *private_layer = NULL;
  55
  56         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  57                 if (private_layer->layer_backend == layer_backend)
  58                         return private_layer;
  59         }
  60
  61         return NULL;
  62 }
  63
  64 INTERN tdm_private_output *
  65 tdm_display_find_private_output(tdm_private_display *private_display, tdm_output *output_backend)
  66 {
  67         tdm_private_backend *private_backend = NULL;
  68         tdm_private_output *private_output = NULL;
  69
  70         LIST_FOR_EACH_ENTRY(private_backend, &private_display->backend_list, link) {
  71                 LIST_FOR_EACH_ENTRY(private_output, &private_backend->output_list, link) {
  72                         if (private_output->output_backend == output_backend)
  73                                 return private_output;
  74                 }
  75         }
  76
  77         return NULL;
  78 }
  79
  80 INTERN void *
  81 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
  82 {
  83         tdm_private_backend *private_backend = NULL;
  84         tdm_private_output *private_output = NULL;
  85
  86         LIST_FOR_EACH_ENTRY(private_backend, &private_display->backend_list, link) {
  87                 LIST_FOR_EACH_ENTRY(private_output, &private_backend->output_list, link) {
  88                         if (private_output->stamp == stamp)
  89                                 return private_output;
  90                 }
  91         }
  92
  93         return NULL;
  94 }
  95
  96 static void
  97 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
  98 {
  99         if (caps_pp->formats)
 100                 free(caps_pp->formats);
 101
 102         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 103 }
 104
 105 static void
 106 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 107 {
 108         if (caps_capture->formats)
 109                 free(caps_capture->formats);
 110
 111         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 112 }
 113
 114 static void
 115 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 116 {
 117         if (caps_layer->formats)
 118                 free(caps_layer->formats);
 119
 120         if (caps_layer->props)
 121                 free(caps_layer->props);
 122
 123         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 124 }
 125
 126 static void
 127 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 128 {
 129         if (caps_output->modes)
 130                 free(caps_output->modes);
 131
 132         if (caps_output->props)
 133                 free(caps_output->props);
 134
 135         memset(caps_output, 0, sizeof(tdm_caps_output));
 136 }
 137
 138 static void
 139 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 140 {
 141         tdm_private_capture *c = NULL, *cc = NULL;
 142
 143         tdm_layer_unset_buffer_internal(private_layer);
 144
 145         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 146         tdm_capture_destroy_internal(c);
 147
 148         _tdm_display_destroy_caps_layer(&private_layer->caps);
 149
 150         /* when destroying layer, someone could check if layer is valid. So delete
 151          * the layer's link at last.
 152          */
 153         LIST_DEL(&private_layer->link);
 154
 155         free(private_layer);
 156 }
 157
 158 static void
 159 _tdm_display_destroy_private_output(tdm_private_output *private_output)
 160 {
 161         tdm_private_display *private_display = private_output->private_display;
 162         tdm_private_layer *l = NULL, *ll = NULL;
 163         tdm_private_hwc_window *hw = NULL, *hww = NULL;
 164         tdm_private_capture *c = NULL, *cc = NULL;
 165         tdm_private_output_vblank_handler *v = NULL, *vv = NULL;
 166         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 167         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 168         tdm_private_output_change_handler *h = NULL, *hh = NULL;
 169
 170         free(private_output->layers_ptr);
 171
 172         if (private_output->vblank_timeout_timer)
 173                 tdm_event_loop_source_remove(private_output->vblank_timeout_timer);
 174
 175         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 176                 LIST_DEL(&v->link);
 177                 free(v);
 178         }
 179
 180         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 181                 LIST_DEL(&om->link);
 182                 free(om);
 183         }
 184
 185         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 186                 LIST_DEL(&lm->link);
 187                 free(lm);
 188         }
 189
 190         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 191                 LIST_DEL(&lm->link);
 192                 free(lm);
 193         }
 194
 195         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list, link) {
 196                 LIST_DEL(&h->link);
 197                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_CHANGE, NULL, tdm_output_thread_cb_change, h);
 198                 free(h);
 199         }
 200
 201         if (private_output->vblank) {
 202                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 203                 _pthread_mutex_unlock(&private_display->lock);
 204                 tdm_vblank_destroy(private_output->vblank);
 205                 _pthread_mutex_lock(&private_display->lock);
 206         }
 207
 208         if (private_output->ttrace_vblank) {
 209                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 210                 _pthread_mutex_unlock(&private_display->lock);
 211                 tdm_vblank_destroy(private_output->ttrace_vblank);
 212                 _pthread_mutex_lock(&private_display->lock);
 213         }
 214
 215         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 216         tdm_capture_destroy_internal(c);
 217
 218         LIST_FOR_EACH_ENTRY_SAFE(hw, hww, &private_output->hwc_window_list, link)
 219         tdm_hwc_window_destroy_internal(hw);
 220
 221         LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 222         _tdm_display_destroy_private_layer(l);
 223
 224         _tdm_display_destroy_caps_output(&private_output->caps);
 225
 226         tdm_thread_cb_remove(private_output, TDM_THREAD_CB_NEED_VALIDATE, NULL,
 227                                                  tdm_output_need_validate_handler_thread, NULL);
 228         tdm_event_loop_source_remove(private_output->need_validate.event_source);
 229         close(private_output->need_validate.event_fd);
 230
 231         /* when destroying output, vblank objects are also destroyed. vblank checks
 232          * if output object is valid. So delete the output's link at last.
 233          */
 234         LIST_DEL(&private_output->link);
 235
 236         private_output->stamp = 0;
 237         free(private_output);
 238 }
 239
 240 static void
 241 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 242 {
 243         tdm_private_backend *private_backend = NULL, *bb = NULL;
 244         tdm_private_output *o = NULL, *oo = NULL;
 245         tdm_private_pp *p = NULL, *pp = NULL;
 246
 247         LIST_FOR_EACH_ENTRY_SAFE(private_backend, bb, &private_display->backend_list, link) {
 248                 LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_backend->pp_list, link) {
 249                         tdm_pp_destroy_internal(p);
 250                 }
 251
 252                 LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_backend->output_list, link) {
 253                         _tdm_display_destroy_private_output(o);
 254                 }
 255
 256                 _tdm_display_destroy_caps_pp(&private_backend->caps_pp);
 257                 _tdm_display_destroy_caps_capture(&private_backend->caps_capture);
 258
 259                 private_backend->capabilities = 0;
 260                 private_backend->caps_display.max_layer_count = 0;
 261
 262                 if (private_backend->outputs) {
 263                         free(private_backend->outputs);
 264                         private_backend->outputs = NULL;
 265                 }
 266         }
 267 }
 268
 269 static tdm_error
 270 _tdm_display_update_caps_pp(tdm_private_backend *private_backend, tdm_caps_pp *caps)
 271 {
 272         tdm_func_display *func_display;
 273         tdm_error ret;
 274
 275         func_display = &private_backend->func_display;
 276
 277         if (!func_display->display_get_pp_capability) {
 278                 TDM_ERR("backend(%s) no display_get_pp_capability()", private_backend->module_data->name);
 279                 return TDM_ERROR_BAD_MODULE;
 280         }
 281
 282         ret = func_display->display_get_pp_capability(private_backend->bdata, caps);
 283         if (ret != TDM_ERROR_NONE) {
 284                 TDM_ERR("backend(%s) display_get_pp_capability() failed", private_backend->module_data->name);
 285                 return TDM_ERROR_BAD_MODULE;
 286         }
 287
 288         return TDM_ERROR_NONE;
 289 }
 290
 291 static tdm_error
 292 _tdm_display_update_caps_capture(tdm_private_backend *private_backend, tdm_caps_capture *caps)
 293 {
 294         tdm_func_display *func_display;
 295         tdm_error ret;
 296
 297         func_display = &private_backend->func_display;
 298
 299         if (!func_display->display_get_capture_capability) {
 300                 TDM_ERR("backend(%s) no display_get_capture_capability()", private_backend->module_data->name);
 301                 return TDM_ERROR_BAD_MODULE;
 302         }
 303
 304         ret = func_display->display_get_capture_capability(private_backend->bdata, caps);
 305         if (ret != TDM_ERROR_NONE) {
 306                 TDM_ERR("backend(%s) display_get_capture_capability() failed", private_backend->module_data->name);
 307                 return TDM_ERROR_BAD_MODULE;
 308         }
 309
 310         return TDM_ERROR_NONE;
 311 }
 312
 313 static tdm_error
 314 _tdm_display_update_caps_layer(tdm_private_backend *private_backend,
 315                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 316 {
 317         tdm_func_layer *func_layer = &private_backend->func_layer;
 318         tdm_error ret;
 319
 320         if (!func_layer->layer_get_capability) {
 321                 TDM_ERR("backend(%s) no layer_get_capability()", private_backend->module_data->name);
 322                 return TDM_ERROR_BAD_MODULE;
 323         }
 324
 325         ret = func_layer->layer_get_capability(layer_backend, caps);
 326         if (ret != TDM_ERROR_NONE) {
 327                 TDM_ERR("backend(%s) layer_get_capability() failed", private_backend->module_data->name);
 328                 return TDM_ERROR_BAD_MODULE;
 329         }
 330
 331         return TDM_ERROR_NONE;
 332 }
 333
 334 static tdm_error
 335 _tdm_display_update_caps_output(tdm_private_backend *private_backend, int pipe,
 336                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 337 {
 338         tdm_func_output *func_output = &private_backend->func_output;
 339         char temp[TDM_NAME_LEN];
 340         tdm_error ret;
 341         double stamp;
 342
 343         if (!func_output->output_get_capability) {
 344                 TDM_ERR("backend(%s) no output_get_capability()", private_backend->module_data->name);
 345                 return TDM_ERROR_BAD_MODULE;
 346         }
 347
 348         stamp = tdm_helper_get_time();
 349         ret = func_output->output_get_capability(output_backend, caps);
 350         TDM_DBG("backend(%s) backend output_get_capability() time: %.3f ms",
 351                         private_backend->module_data->name, (tdm_helper_get_time() - stamp) * 1000.0);
 352
 353         if (ret != TDM_ERROR_NONE) {
 354                 TDM_ERR("backend(%s) output_get_capability() failed", private_backend->module_data->name);
 355                 return TDM_ERROR_BAD_MODULE;
 356         }
 357
 358         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 359         snprintf(temp, TDM_NAME_LEN, "%s-%d", caps->model, pipe);
 360         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 361
 362         return TDM_ERROR_NONE;
 363 }
 364
 365 static tdm_error
 366 _tdm_display_update_layer(tdm_private_output *private_output,
 367                                                   tdm_layer *layer_backend, int index)
 368 {
 369         tdm_private_layer *private_layer;
 370         tdm_error ret;
 371
 372         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 373         if (!private_layer) {
 374                 private_layer = calloc(1, sizeof(tdm_private_layer));
 375                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 376
 377                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 378                 private_layer->index = index;
 379                 private_layer->private_backend = private_output->private_backend;
 380                 private_layer->private_display = private_output->private_display;
 381                 private_layer->private_output = private_output;
 382                 private_layer->layer_backend = layer_backend;
 383
 384                 LIST_INITHEAD(&private_layer->capture_list);
 385
 386                 private_layer->usable = 1;
 387         } else
 388                 _tdm_display_destroy_caps_layer(&private_layer->caps);
 389
 390         ret = _tdm_display_update_caps_layer(private_layer->private_backend, layer_backend,
 391                                                                                  &private_layer->caps);
 392         if (ret != TDM_ERROR_NONE)
 393                 goto failed_update;
 394
 395         return TDM_ERROR_NONE;
 396 failed_update:
 397         _tdm_display_destroy_private_layer(private_layer);
 398         return ret;
 399 }
 400
 401 INTERN tdm_error
 402 tdm_display_update_output(tdm_private_backend *private_backend,
 403                                                   tdm_output *output_backend, int pipe)
 404 {
 405         tdm_func_output *func_output = &private_backend->func_output;
 406         tdm_private_output *private_output = NULL;
 407         tdm_layer **layers = NULL;
 408         int layer_count = 0, i;
 409         tdm_error ret;
 410
 411         private_output = tdm_display_find_private_output(private_backend->private_display, output_backend);
 412         if (!private_output) {
 413                 private_output = calloc(1, sizeof(tdm_private_output));
 414                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 415
 416                 private_output->stamp = tdm_helper_get_time();
 417                 while (tdm_display_find_output_stamp(private_backend->private_display, private_output->stamp))
 418                         private_output->stamp++;
 419
 420                 LIST_ADDTAIL(&private_output->link, &private_backend->output_list);
 421
 422                 private_output->private_backend = private_backend;
 423                 private_output->private_display = private_backend->private_display;
 424                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 425                 private_output->output_backend = output_backend;
 426                 private_output->pipe = pipe;
 427                 private_output->index = pipe;
 428
 429                 LIST_INITHEAD(&private_output->layer_list);
 430                 LIST_INITHEAD(&private_output->hwc_window_list);
 431                 LIST_INITHEAD(&private_output->capture_list);
 432                 LIST_INITHEAD(&private_output->vblank_handler_list);
 433                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 434                 LIST_INITHEAD(&private_output->layer_commit_handler_list);
 435                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 436                 LIST_INITHEAD(&private_output->change_handler_list);
 437
 438                 if (func_output->output_set_status_handler) {
 439                         func_output->output_set_status_handler(private_output->output_backend,
 440                                                                                                    tdm_output_cb_status,
 441                                                                                                    private_output);
 442                         private_output->regist_change_cb = 1;
 443                 }
 444
 445                 ret = _tdm_display_update_caps_output(private_backend, pipe, output_backend,
 446                                                                                           &private_output->caps);
 447                 if (ret != TDM_ERROR_NONE)
 448                         return ret;
 449         } else {
 450                 tdm_caps_output new_caps;
 451
 452                 ret = _tdm_display_update_caps_output(private_backend, pipe, output_backend,
 453                                                                                           &new_caps);
 454                 if (ret != TDM_ERROR_NONE)
 455                         return ret;
 456
 457                 /* FIXME: This is very ugly. need to fix after the TDM ABI is changed. */
 458                 if (private_output->caps.status != new_caps.status) {
 459                         _tdm_display_destroy_caps_output(&private_output->caps);
 460                         private_output->caps = new_caps;
 461                         private_output->current_mode = NULL;
 462                 } else {
 463                         tdm_output_mode *old_modes = private_output->caps.modes;
 464                         unsigned int old_mode_count = private_output->caps.mode_count;
 465                         if (new_caps.modes)
 466                                 free(new_caps.modes);
 467                         new_caps.modes = old_modes;
 468                         new_caps.mode_count = old_mode_count;
 469                         if (private_output->caps.props)
 470                                 free(private_output->caps.props);
 471                         private_output->caps = new_caps;
 472                 }
 473         }
 474
 475         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 476         if (ret != TDM_ERROR_NONE)
 477                 goto failed_update;
 478
 479         for (i = 0; i < layer_count; i++) {
 480                 ret = _tdm_display_update_layer(private_output, layers[i], i);
 481                 if (ret != TDM_ERROR_NONE)
 482                         goto failed_update;
 483         }
 484
 485         free(layers);
 486
 487         return TDM_ERROR_NONE;
 488 failed_update:
 489         _tdm_display_destroy_private_output(private_output);
 490         free(layers);
 491         return ret;
 492 }
 493
 494 static tdm_output **
 495 _tdm_display_set_main_first(tdm_output **outputs, int index)
 496 {
 497         tdm_output *output_tmp = NULL;
 498
 499         if (index == 0)
 500                 return outputs;
 501
 502         output_tmp = outputs[0];
 503         outputs[0] = outputs[index];
 504         outputs[index] = output_tmp;
 505
 506         return outputs;
 507 }
 508
 509 static tdm_output **
 510 _tdm_display_get_ordered_outputs(tdm_private_backend *private_backend, int *count)
 511 {
 512         tdm_func_display *func_display = &private_backend->func_display;
 513         tdm_output **outputs = NULL;
 514         tdm_output **new_outputs = NULL;
 515         tdm_output *output_dsi = NULL;
 516         tdm_output *output_lvds = NULL;
 517         tdm_output *output_hdmia = NULL;
 518         tdm_output *output_hdmib = NULL;
 519         int i, output_count = 0, output_connected_count = 0;
 520         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 521         tdm_error ret;
 522
 523         /* don't change list order if not init time */
 524         if (private_backend->outputs) {
 525                 TDM_ERR("can't change output order");
 526                 return private_backend->outputs;
 527         }
 528
 529         outputs = func_display->display_get_outputs(private_backend->bdata, &output_count, &ret);
 530         if (ret != TDM_ERROR_NONE)
 531                 goto failed_get_outputs;
 532
 533         *count = output_count;
 534
 535         if (output_count == 0)
 536                 goto failed_get_outputs;
 537         else if (output_count == 1) {
 538                 private_backend->outputs = outputs;
 539                 return outputs;
 540         }
 541
 542         /* count connected outputs */
 543         for (i = 0; i < output_count; i++) {
 544                 tdm_func_output *func_output = &private_backend->func_output;
 545                 tdm_caps_output caps;
 546                 memset(&caps, 0, sizeof(tdm_caps_output));
 547
 548                 if (!func_output->output_get_capability) {
 549                         TDM_ERR("no output_get_capability()");
 550                         goto failed_get_outputs;
 551                 }
 552
 553                 ret = func_output->output_get_capability(outputs[i], &caps);
 554                 if (ret != TDM_ERROR_NONE) {
 555                         TDM_ERR("output_get_capability() failed");
 556                         goto failed_get_outputs;
 557                 }
 558
 559                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 560                         output_connected_count++;
 561
 562                         switch (caps.type) {
 563                         case TDM_OUTPUT_TYPE_DSI:
 564                                 output_dsi = outputs[i];
 565                                 index_dsi = i;
 566                                 break;
 567                         case TDM_OUTPUT_TYPE_LVDS:
 568                                 output_lvds = outputs[i];
 569                                 index_lvds = i;
 570                                 break;
 571                         case TDM_OUTPUT_TYPE_HDMIA:
 572                                 output_hdmia = outputs[i];
 573                                 index_hdmia = i;
 574                                 break;
 575                         case TDM_OUTPUT_TYPE_HDMIB:
 576                                 output_hdmib = outputs[i];
 577                                 index_hdmib = i;
 578                                 break;
 579                         default:
 580                                 break;
 581                         }
 582                 }
 583
 584                 _tdm_display_destroy_caps_output(&caps);
 585         }
 586
 587         /* ordering : main output is first */
 588         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 589           * But hdmi is possible, so set hdmi to main display.
 590           * If connected only one output, it is main output.
 591           * If connected outputs over 2, has priority like below.
 592           * (dsi > lvds > hdmi > else)
 593           */
 594         if (output_connected_count == 0) {
 595                 /* hdmi > dsi > lvds > else */
 596                 if (output_hdmia != NULL)
 597                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 598                 else if (output_hdmib != NULL)
 599                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 600                 else if (output_dsi != NULL)
 601                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 602                 else if (output_lvds != NULL)
 603                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 604                 else
 605                         new_outputs = outputs;
 606         } else { /* (output_connected_count > 1) */
 607                 /* dsi > lvds > hdmi > else */
 608                 if (output_dsi != NULL)
 609                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 610                 else if (output_lvds != NULL)
 611                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 612                 else if (output_hdmia != NULL)
 613                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 614                 else if (output_hdmib != NULL)
 615                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 616                 else
 617                         new_outputs = outputs;
 618         }
 619
 620         private_backend->outputs = new_outputs;
 621
 622         return new_outputs;
 623
 624 failed_get_outputs:
 625         free(outputs);
 626         *count = 0;
 627         return NULL;
 628 }
 629
 630 static tdm_error
 631 _tdm_display_update(tdm_private_display *private_display)
 632 {
 633         tdm_private_backend *private_backend = NULL;
 634         tdm_error ret = TDM_ERROR_NONE;
 635         int index = 0;
 636
 637         if (private_display->pp_backend) {
 638                 ret = _tdm_display_update_caps_pp(private_display->pp_backend,
 639                                                                                   &private_display->pp_backend->caps_pp);
 640                 if (ret != TDM_ERROR_NONE)
 641                         goto failed_update;
 642         }
 643
 644         if (private_display->capture_backend) {
 645                 ret = _tdm_display_update_caps_capture(private_display->capture_backend,
 646                                                                                            &private_display->capture_backend->caps_capture);
 647                 if (ret != TDM_ERROR_NONE)
 648                         goto failed_update;
 649         }
 650
 651         LIST_FOR_EACH_ENTRY(private_backend, &private_display->backend_list, link) {
 652                 tdm_output **outputs;
 653                 int output_count = 0, i;
 654
 655                 outputs = _tdm_display_get_ordered_outputs(private_backend, &output_count);
 656                 if (!outputs)
 657                         goto failed_update;
 658
 659                 for (i = 0; i < output_count; i++) {
 660                         ret = tdm_display_update_output(private_backend, outputs[i], index++);
 661                         if (ret != TDM_ERROR_NONE)
 662                                 goto failed_update;
 663                 }
 664         }
 665
 666         return TDM_ERROR_NONE;
 667
 668 failed_update:
 669         _tdm_display_destroy_private_display(private_display);
 670         return ret;
 671 }
 672 /* LCOV_EXCL_STOP */
 673
 674 EXTERN tdm_error
 675 tdm_display_update(tdm_display *dpy)
 676 {
 677         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 678         TDM_RETURN_VAL_IF_FAIL(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER);
 679
 680         TDM_DEPRECATED(NULL);
 681
 682         return TDM_ERROR_NONE;
 683 }
 684
 685 #define SUFFIX_MODULE    ".so"
 686 #define TDM_DEFAULT_MODULE   "libtdm-default"SUFFIX_MODULE
 687 #define TDM_DUMMY_MODULE     "libtdm-dummy"SUFFIX_MODULE
 688
 689 int tdm_debug_module;
 690 int tdm_debug_dump;
 691 int tdm_ttrace_module;
 692 int tdm_ttrace_output;
 693
 694 static tdm_private_display *g_private_display;
 695 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 696
 697 /* LCOV_EXCL_START */
 698 static tdm_error
 699 _tdm_display_check_module(tdm_backend_module *module)
 700 {
 701         int major, minor;
 702
 703         TDM_INFO("TDM ABI version : %d.%d",
 704                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 705
 706         if (!module->name) {
 707                 TDM_ERR("TDM backend doesn't have name");
 708                 return TDM_ERROR_BAD_MODULE;
 709         }
 710
 711         if (!module->vendor) {
 712                 TDM_ERR("TDM backend doesn't have vendor");
 713                 return TDM_ERROR_BAD_MODULE;
 714         }
 715
 716         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 717         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 718
 719         TDM_INFO("TDM module name: %s", module->name);
 720         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 721         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 722
 723         if (major != TDM_MAJOR_VERSION) {
 724                 TDM_ERR("'%s' major version mismatch, %d != %d",
 725                                 module->name, major, TDM_MAJOR_VERSION);
 726                 return TDM_ERROR_BAD_MODULE;
 727         }
 728
 729         if (minor > TDM_MINOR_VERSION) {
 730                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 731                                 module->name, minor, TDM_MINOR_VERSION);
 732                 return TDM_ERROR_BAD_MODULE;
 733         }
 734
 735         if (!module->init) {
 736                 TDM_ERR("'%s' doesn't have init function", module->name);
 737                 return TDM_ERROR_BAD_MODULE;
 738         }
 739
 740         if (!module->deinit) {
 741                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 742                 return TDM_ERROR_BAD_MODULE;
 743         }
 744
 745         return TDM_ERROR_NONE;
 746 }
 747
 748 static tdm_error
 749 _tdm_display_check_backend_functions(tdm_private_backend *private_backend)
 750 {
 751         tdm_func_display *func_display = &private_backend->func_display;
 752         tdm_func_output *func_output = &private_backend->func_output;
 753         tdm_func_layer *func_layer = &private_backend->func_layer;
 754         tdm_error ret;
 755
 756         /* below functions should be implemented in backend side */
 757
 758         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 759         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 760         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 761         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 762         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 763
 764         ret = func_display->display_get_capability(private_backend->bdata, &private_backend->caps_display);
 765         if (ret != TDM_ERROR_NONE) {
 766                 TDM_ERR("display_get_capability() failed");
 767                 return TDM_ERROR_BAD_MODULE;
 768         }
 769
 770         if (private_backend->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 771                 tdm_func_pp *func_pp = &private_backend->func_pp;
 772                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 773                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 774                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 775                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 776                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 777         }
 778
 779         if (private_backend->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 780                 tdm_func_capture *func_capture = &private_backend->func_capture;
 781                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 782                 if (private_backend->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 783                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 784                 if (private_backend->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 785                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 786                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 787                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 788                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 789         }
 790
 791         return TDM_ERROR_NONE;
 792 }
 793
 794 static tdm_error
 795 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 796                                                                    const char *file)
 797 {
 798         char path[TDM_PATH_LEN] = {0,};
 799         void *module = NULL;
 800         tdm_backend_module *module_data;
 801         tdm_backend_data *bdata = NULL;
 802         tdm_private_backend *private_backend = NULL;
 803         tdm_error ret;
 804         double stamp;
 805         int size;
 806
 807         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 808         if (size >= (int)sizeof(path)) {
 809                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 810                 return TDM_ERROR_BAD_MODULE;
 811         };
 812
 813         private_backend = calloc(1, sizeof *private_backend);
 814         if (!private_backend) {
 815                 TDM_ERR("alloc failed: %m");
 816                 ret = TDM_ERROR_OUT_OF_MEMORY;
 817                 goto failed_load;
 818         }
 819
 820         private_backend->private_display = private_display;
 821
 822         stamp = tdm_helper_get_time();
 823
 824         TDM_TRACE_BEGIN("TDM_Load_Backend");
 825         module = dlopen(path, RTLD_LAZY);
 826         if (!module) {
 827                 TDM_ERR("failed to load module: %s(%s)", dlerror(), file);
 828                 TDM_TRACE_END();
 829                 ret = TDM_ERROR_BAD_MODULE;
 830                 goto failed_load;
 831         }
 832
 833         private_backend->module = module;
 834
 835         module_data = dlsym(module, "tdm_backend_module_data");
 836         if (!module_data) {
 837                 TDM_ERR("'%s' doesn't have data object", file);
 838                 ret = TDM_ERROR_BAD_MODULE;
 839                 TDM_TRACE_END();
 840                 goto failed_load;
 841         }
 842         TDM_TRACE_END();
 843
 844         private_backend->module_data = module_data;
 845
 846         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 847
 848         /* check if version, init() and deinit() are valid or not */
 849         ret = _tdm_display_check_module(module_data);
 850         if (ret != TDM_ERROR_NONE) {
 851                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
 852                 goto failed_load;
 853         }
 854
 855         private_display->current_backend = private_backend;
 856
 857         /* We don't care if backend_data is NULL or not. It's up to backend. */
 858         TDM_TRACE_BEGIN("TDM_Init_Backend");
 859         stamp = tdm_helper_get_time();
 860         bdata = module_data->init((tdm_display *)private_display, &ret);
 861         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 862         TDM_TRACE_END();
 863
 864         private_display->current_backend = NULL;
 865
 866         private_backend->bdata = bdata;
 867
 868         if (ret != TDM_ERROR_NONE) {
 869                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
 870                 goto failed_load;
 871         }
 872
 873         ret = _tdm_display_check_backend_functions(private_backend);
 874         if (ret != TDM_ERROR_NONE) {
 875                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
 876                 goto failed_load;
 877         }
 878
 879         LIST_INITHEAD(&private_backend->output_list);
 880         LIST_INITHEAD(&private_backend->pp_list);
 881         LIST_INITHEAD(&private_backend->capture_list);
 882
 883         LIST_ADDTAIL(&private_backend->link, &private_display->backend_list);
 884
 885         TDM_INFO("Success to load '%s' module", module_data->name);
 886
 887         return TDM_ERROR_NONE;
 888 failed_load:
 889         if (bdata)
 890                 module_data->deinit(bdata);
 891         dlclose(module);
 892         if (private_backend)
 893                 free(private_backend);
 894         return ret;
 895 }
 896
 897 static tdm_error
 898 _tdm_display_load_modules(tdm_private_display *private_display)
 899 {
 900         const char *module_names;
 901         tdm_error ret = 0;
 902         char temp[TDM_PATH_LEN];
 903         char *arg;
 904         char *end;
 905
 906         LIST_INITHEAD(&private_display->backend_list);
 907
 908         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
 909
 910         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
 911
 912         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
 913         while (arg) {
 914                 TDM_INFO("loading a %s backend", arg);
 915                 ret = _tdm_display_load_module_with_file(private_display, arg);
 916                 if (ret == TDM_ERROR_NONE)
 917                         TDM_INFO("%s backend loading success", arg);
 918                 else
 919                         TDM_INFO("%s backend loading failed", arg);
 920                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
 921         }
 922
 923         /* load bufmgr priv from dummy lib */
 924         if (LIST_IS_EMPTY(&private_display->backend_list)) {
 925                 TDM_WRN("No backend. loading a %s backend", TDM_DUMMY_MODULE);
 926                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 927                 if (ret == TDM_ERROR_NONE)
 928                         TDM_INFO("%s backend loading success", TDM_DUMMY_MODULE);
 929                 else
 930                         TDM_INFO("%s backend loading failed", TDM_DUMMY_MODULE);
 931         }
 932
 933         return ret;
 934 }
 935
 936 static void
 937 _tdm_display_unload_modules(tdm_private_display *private_display)
 938 {
 939         tdm_private_backend *private_backend = NULL, *bb = NULL;
 940
 941         LIST_FOR_EACH_ENTRY_SAFE(private_backend, bb, &private_display->backend_list, link) {
 942                 LIST_DEL(&private_backend->link);
 943
 944                 if (private_backend->module_data)
 945                         private_backend->module_data->deinit(private_backend->bdata);
 946                 if (private_backend->module)
 947                         dlclose(private_backend->module);
 948
 949                 free(private_backend);
 950         }
 951 }
 952 /* LCOV_EXCL_STOP */
 953
 954 EXTERN tdm_display *
 955 tdm_display_init(tdm_error *error)
 956 {
 957         tdm_private_display *private_display = NULL;
 958         const char *str;
 959         tdm_error ret;
 960         double stamp1, stamp2, start;
 961         int mode;
 962
 963         pthread_mutex_lock(&gLock);
 964
 965         if (g_private_display) {
 966                 g_private_display->init_count++;
 967                 pthread_mutex_unlock(&gLock);
 968                 if (error)
 969                         *error = TDM_ERROR_NONE;
 970                 return g_private_display;
 971         }
 972
 973         start = stamp1 = tdm_helper_get_time();
 974
 975         stamp2 = tdm_helper_get_time();
 976         TDM_INFO("config init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 977         stamp1 = stamp2;
 978
 979         private_display = calloc(1, sizeof(tdm_private_display));
 980         if (!private_display) {
 981                 /* LCOV_EXCL_START */
 982                 ret = TDM_ERROR_OUT_OF_MEMORY;
 983                 TDM_ERR("'private_display != NULL' failed");
 984                 goto failed_alloc;
 985                 /* LCOV_EXCL_STOP */
 986         }
 987
 988         private_display->stamp = tdm_helper_get_time();
 989
 990         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
 991         if (str)
 992                 tdm_display_enable_debug_module(str);
 993
 994         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
 995         if (str)
 996                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 997
 998         if (pthread_mutex_init(&private_display->lock, NULL)) {
 999                 /* LCOV_EXCL_START */
1000                 ret = TDM_ERROR_OPERATION_FAILED;
1001                 TDM_ERR("mutex init failed: %m");
1002                 goto failed_mutex_init;
1003                 /* LCOV_EXCL_STOP */
1004         }
1005
1006         _pthread_mutex_lock(&private_display->lock);
1007
1008         stamp2 = tdm_helper_get_time();
1009         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1010         stamp1 = stamp2;
1011
1012         ret = tdm_event_loop_init(private_display);
1013         if (ret != TDM_ERROR_NONE)
1014                 goto failed_event;
1015
1016         stamp2 = tdm_helper_get_time();
1017         TDM_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1018         stamp1 = stamp2;
1019
1020         ret = tdm_vblank_init(private_display);
1021         if (ret != TDM_ERROR_NONE)
1022                 goto failed_vblank;
1023
1024         ret = tdm_output_init(private_display);
1025         if (ret != TDM_ERROR_NONE)
1026                 goto failed_load;
1027
1028         ret = tdm_pp_init(private_display);
1029         if (ret != TDM_ERROR_NONE)
1030                 goto failed_load;
1031
1032         ret = tdm_capture_init(private_display);
1033         if (ret != TDM_ERROR_NONE)
1034                 goto failed_load;
1035
1036         ret = _tdm_display_load_modules(private_display);
1037         if (ret != TDM_ERROR_NONE)
1038                 goto failed_load;
1039
1040         stamp2 = tdm_helper_get_time();
1041         TDM_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1042         stamp1 = stamp2;
1043
1044 #ifdef INIT_BUFMGR
1045         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1046         if (tdm_drm_fd >= 0) {
1047                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1048                 close(tdm_drm_fd);
1049                 if (!private_display->bufmgr) {
1050                         TDM_ERR("tbm_bufmgr_init failed");
1051                         goto failed_update;
1052                 } else {
1053                         TDM_INFO("tbm_bufmgr_init successed");
1054                 }
1055
1056                 stamp2 = tdm_helper_get_time();
1057                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1058                 stamp1 = stamp2;
1059         }
1060 #endif
1061
1062         TDM_TRACE_BEGIN("TDM_Update_Display");
1063         ret = _tdm_display_update(private_display);
1064         TDM_TRACE_END();
1065         if (ret != TDM_ERROR_NONE)
1066                 goto failed_update;
1067
1068         stamp2 = tdm_helper_get_time();
1069         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1070         stamp1 = stamp2;
1071
1072         tdm_event_loop_create_backend_source(private_display);
1073
1074         private_display->init_count = 1;
1075         g_private_display = private_display;
1076
1077         tdm_private_backend *b = NULL;
1078         tdm_private_output *o = NULL;
1079         LIST_FOR_EACH_ENTRY(b, &private_display->backend_list, link) {
1080                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1081                         if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1082                                 tdm_output_need_validate_event_init(o);
1083                 }
1084         }
1085
1086         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1087          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1088          * this functionality can be turned off which means a default mode */
1089         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1090         if (mode > 0) {
1091                 tdm_private_backend *b = NULL;
1092                 tdm_private_output *o = NULL;
1093
1094                 /* outputs which support hwc capability can work only
1095                  * if commit_per_vblank mode is '0' (default mode) */
1096                 LIST_FOR_EACH_ENTRY(b, &private_display->backend_list, link) {
1097                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1098                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1099                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1100                         }
1101                 }
1102         }
1103
1104         if (error)
1105                 *error = TDM_ERROR_NONE;
1106
1107         _pthread_mutex_unlock(&private_display->lock);
1108         pthread_mutex_unlock(&gLock);
1109
1110         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1111
1112         return (tdm_display *)private_display;
1113
1114 /* LCOV_EXCL_START */
1115 failed_update:
1116         _tdm_display_unload_modules(private_display);
1117 failed_load:
1118         tdm_event_loop_stop(private_display);
1119         tdm_event_loop_deinit(private_display);
1120 failed_event:
1121         tdm_vblank_deinit(private_display);
1122 failed_vblank:
1123         _pthread_mutex_unlock(&private_display->lock);
1124         pthread_mutex_destroy(&private_display->lock);
1125 failed_mutex_init:
1126         free(private_display);
1127 failed_alloc:
1128         if (error)
1129                 *error = ret;
1130         pthread_mutex_unlock(&gLock);
1131         return NULL;
1132 /* LCOV_EXCL_STOP */
1133 }
1134
1135 EXTERN void
1136 tdm_display_deinit(tdm_display *dpy)
1137 {
1138         tdm_private_display *private_display = dpy;
1139
1140         if (!private_display)
1141                 return;
1142
1143         TDM_RETURN_IF_FAIL(tdm_display_is_valid(dpy));
1144
1145         pthread_mutex_lock(&gLock);
1146
1147         private_display->init_count--;
1148         if (private_display->init_count > 0) {
1149                 pthread_mutex_unlock(&gLock);
1150                 return;
1151         }
1152
1153         /* dont move the position of lock/unlock. all resource should be protected
1154          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1155          * things because it's finalized.
1156          */
1157         _pthread_mutex_lock(&private_display->lock);
1158         tdm_event_loop_stop(private_display);
1159         tdm_event_loop_deinit(private_display);
1160         _pthread_mutex_unlock(&private_display->lock);
1161
1162         /* when private_output is destroyed, all vblank resources of client and server
1163          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1164          * we can unload backend modulues.
1165          */
1166         _tdm_display_destroy_private_display(private_display);
1167         _tdm_display_unload_modules(private_display);
1168
1169         tdm_vblank_deinit(private_display);
1170
1171 #ifdef INIT_BUFMGR
1172         if (private_display->bufmgr)
1173                 tbm_bufmgr_deinit(private_display->bufmgr);
1174 #endif
1175
1176         tbm_drm_helper_unset_tbm_master_fd();
1177
1178         pthread_mutex_destroy(&private_display->lock);
1179         free(private_display);
1180         g_private_display = NULL;
1181
1182         if (tdm_debug_dump_dir) {
1183                 free(tdm_debug_dump_dir);
1184                 tdm_debug_dump_dir = NULL;
1185         }
1186
1187         tdm_config_deinit();
1188
1189         pthread_mutex_unlock(&gLock);
1190
1191         TDM_INFO("done");
1192 }
1193
1194 INTERN tdm_private_display *
1195 tdm_display_get(void)
1196 {
1197         return g_private_display;
1198 }
1199
1200 INTERN int
1201 tdm_display_is_valid(tdm_display *dpy)
1202 {
1203         if (dpy != NULL && dpy == g_private_display)
1204                 return 1;
1205         return 0;
1206 }
1207
1208 INTERN int
1209 tdm_output_is_valid(tdm_output *output)
1210 {
1211         tdm_private_backend *b = NULL;
1212         tdm_private_output *o = NULL;
1213
1214         if (!output || !g_private_display)
1215                 return 0;
1216
1217         LIST_FOR_EACH_ENTRY(b, &g_private_display->backend_list, link) {
1218                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link)
1219                         if (o == output)
1220                                 return 1;
1221         }
1222
1223         return 0;
1224 }
1225
1226 /* LCOV_EXCL_START */
1227 INTERN int
1228 tdm_backend_check_module_abi(tdm_private_backend *private_backend, int abimaj, int abimin)
1229 {
1230         tdm_backend_module *module = private_backend->module_data;
1231
1232         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1233                 return 0;
1234
1235         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1236                 return 0;
1237
1238         return 1;
1239 }
1240
1241 INTERN tdm_error
1242 tdm_display_enable_debug_module(const char*modules)
1243 {
1244         char temp[TDM_PATH_LEN];
1245         char *arg;
1246         char *end;
1247
1248         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1249
1250         tdm_debug_module = 0;
1251
1252         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1253         while (arg) {
1254                 if (!strncmp(arg, "none", 4)) {
1255                         tdm_debug_module = 0;
1256                         return TDM_ERROR_NONE;
1257                 }
1258                 if (!strncmp(arg, "all", 3)) {
1259                         tdm_debug_module = 0xFFFFFFFF;
1260                         return TDM_ERROR_NONE;
1261                 }
1262                 if (!strncmp(arg, "buffer", 6))
1263                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1264                 else if (!strncmp(arg, "event", 5))
1265                         tdm_debug_module |= TDM_DEBUG_EVENT;
1266                 else if (!strncmp(arg, "thread", 6))
1267                         tdm_debug_module |= TDM_DEBUG_THREAD;
1268                 else if (!strncmp(arg, "mutex", 5))
1269                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1270                 else if (!strncmp(arg, "vblank", 6))
1271                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1272                 else if (!strncmp(arg, "commit", 6))
1273                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1274
1275                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1276         }
1277
1278         TDM_INFO("module debugging... '%s'", modules);
1279
1280         return TDM_ERROR_NONE;
1281 }
1282
1283 INTERN tdm_error
1284 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1285 {
1286         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1287         char *path = NULL, *path2;
1288         char *arg;
1289         char *end;
1290
1291         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1292         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1293         if (!path2 || path2[0] == '\0')
1294                 path2 = TDM_DUMP_DIR;
1295         else
1296                 path2++;
1297
1298         tdm_debug_dump = 0;
1299
1300         snprintf(temp, sizeof(temp), "%s", dump_str);
1301         arg = strtok_r(temp, ",", &end);
1302         TDM_GOTO_IF_FAIL(arg != NULL, done);
1303
1304         if (!strncmp(arg, "none", 4)) {
1305                 tdm_debug_dump = 0;
1306                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1307                 if (tdm_debug_dump_dir) {
1308                         free(tdm_debug_dump_dir);
1309                         tdm_debug_dump_dir = NULL;
1310                 }
1311                 goto done;
1312         }
1313
1314         path = tdm_helper_dump_make_directory(path2, reply, len);
1315         TDM_GOTO_IF_FAIL(path != NULL, done);
1316
1317         if (!strncmp(arg, "current", 7)) {
1318                 tdm_private_backend *b = NULL;
1319                 tdm_private_output *o = NULL;
1320
1321                 if (!private_display) {
1322                         TDM_WRN("no private_display");
1323                         goto done;
1324                 }
1325
1326                 LIST_FOR_EACH_ENTRY(b, &private_display->backend_list, link) {
1327                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1328                                 tdm_private_layer *l = NULL;
1329                                 LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1330                                         char str[TDM_PATH_LEN];
1331                                         if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1332                                                 continue;
1333                                         if (!l->showing_buffer)
1334                                                 continue;
1335                                         snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1336                                         tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1337                                 }
1338                         }
1339                 }
1340
1341                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1342                 goto done;
1343         }
1344
1345         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1346
1347         while (arg) {
1348                 if (!strncmp(arg, "all", 3)) {
1349                         tdm_debug_dump = 0xFFFFFFFF;
1350                         goto done;
1351                 } else if (!strncmp(arg, "layer", 5)) {
1352                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1353                 } else if (!strncmp(arg, "pp", 2)) {
1354                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1355                 } else if (!strncmp(arg, "capture", 7)) {
1356                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1357                 } else if (!strncmp(arg, "window", 6)) {
1358                         tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
1359                 } else
1360                         goto done;
1361
1362                 arg = strtok_r(NULL, ",", &end);
1363         }
1364
1365         if (tdm_debug_dump_dir)
1366                 free(tdm_debug_dump_dir);
1367
1368         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1369
1370         TDM_INFO("dump... '%s'", dump_str);
1371
1372 done:
1373         if (path)
1374                 free(path);
1375
1376         return TDM_ERROR_NONE;
1377 }
1378
1379 static void
1380 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1381                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1382 {
1383         tdm_error ret = TDM_ERROR_NONE;
1384
1385         TDM_TRACE_MARK("VSYNC");
1386
1387         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1388         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1389 }
1390
1391 INTERN tdm_error
1392 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1393 {
1394         tdm_private_display *private_display = dpy;
1395         tdm_private_backend *private_backend = NULL;
1396         tdm_private_output *private_output = NULL;
1397         const tdm_output_mode *mode = NULL;
1398         tdm_vblank *vblank = NULL;
1399         tdm_error ret = TDM_ERROR_NONE;
1400
1401         if (!enable) {
1402                 LIST_FOR_EACH_ENTRY(private_backend, &private_display->backend_list, link) {
1403                         LIST_FOR_EACH_ENTRY(private_output, &private_backend->output_list, link) {
1404                                 if (private_output->ttrace_vblank)
1405                                         tdm_vblank_destroy(private_output->ttrace_vblank);
1406                                 private_output->ttrace_vblank = NULL;
1407                         }
1408                 }
1409                 return TDM_ERROR_NONE;
1410         }
1411
1412         private_output = output;
1413         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1414
1415         if (private_output->ttrace_vblank)
1416                 return TDM_ERROR_NONE;
1417
1418         vblank = tdm_vblank_create(private_display, output, &ret);
1419         TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1420
1421         ret = tdm_output_get_mode(output, &mode);
1422         TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1423
1424         ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1425         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1426
1427         ret = tdm_vblank_set_enable_fake(vblank, 1);
1428         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1429
1430         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1431         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1432
1433         private_output->ttrace_vblank = vblank;
1434
1435         return TDM_ERROR_NONE;
1436
1437 enable_fail:
1438         if (vblank)
1439                 tdm_vblank_destroy(vblank);
1440
1441         return ret;
1442 }
1443
1444 INTERN tdm_error
1445 tdm_display_enable_ttrace(tdm_private_display *private_display, const char *ttrace, int output_id, char *reply, int *len)
1446 {
1447         char temp[TDM_PATH_LEN];
1448         char *arg;
1449         char *end;
1450         tdm_output *output;
1451         tdm_error ret;
1452         tdm_output_type type;
1453
1454         snprintf(temp, TDM_PATH_LEN, "%s", ttrace);
1455
1456         tdm_ttrace_output = output_id;
1457         tdm_ttrace_module = 0;
1458
1459         output = tdm_display_get_output(private_display, output_id, &ret);
1460         if (!output) {
1461                 TDM_SNPRINTF(reply, len, "can't find the output_id(%d)\n", output_id);
1462                 return ret;
1463         }
1464
1465         ret = tdm_output_get_output_type(output, &type);
1466         if (ret != TDM_ERROR_NONE) {
1467                 TDM_SNPRINTF(reply, len, "can't find the type of output_id(%d)\n", output_id);
1468                 return ret;
1469         }
1470
1471         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1472         while (arg) {
1473                 if (!strncmp(arg, "none", 4))
1474                         tdm_ttrace_module = 0;
1475                 else if (!strncmp(arg, "all", 3))
1476                         tdm_ttrace_module = 0xFFFFFFFF;
1477                 else if (!strncmp(arg, "vsync", 5))
1478                         tdm_ttrace_module |= TDM_TTRACE_VSYNC;
1479                 else if (!strncmp(arg, "client_vblank", 13))
1480                         tdm_ttrace_module |= TDM_TTRACE_CLIENT_VBLANK;
1481                 else if (!strncmp(arg, "server_vblank", 13))
1482                         tdm_ttrace_module |= TDM_TTRACE_SERVER_VBLANK;
1483                 else if (!strncmp(arg, "vblank", 6))
1484                         tdm_ttrace_module |= TDM_TTRACE_VBLANK;
1485                 else if (!strncmp(arg, "layer", 5))
1486                         tdm_ttrace_module |= TDM_TTRACE_LAYER;
1487                 else if (!strncmp(arg, "pp", 2))
1488                         tdm_ttrace_module |= TDM_TTRACE_PP;
1489                 else if (!strncmp(arg, "capture", 7))
1490                         tdm_ttrace_module |= TDM_TTRACE_CAPTURE;
1491                 else  {
1492                         tdm_ttrace_module = 0;
1493                         tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1494                         tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1495                         TDM_SNPRINTF(reply, len, "unknown option: '%s'\n", arg);
1496                         return TDM_ERROR_NONE;
1497                 }
1498
1499                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1500         }
1501
1502         TDM_SNPRINTF(reply, len, "ttrace debugging... '%s' %x\n", ttrace, tdm_ttrace_module);
1503
1504         if (tdm_ttrace_module & TDM_TTRACE_VSYNC)
1505                 tdm_display_enable_ttrace_vblank(private_display, output, 1);
1506         else
1507                 tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1508
1509         if (tdm_ttrace_module & TDM_TTRACE_CLIENT_VBLANK)
1510                 tdm_server_enable_ttrace_client_vblank(private_display, output, 1);
1511         else
1512                 tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1513
1514         return TDM_ERROR_NONE;
1515 }
1516
1517 INTERN tdm_error
1518 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1519 {
1520         private_display->print_fps = enable;
1521
1522         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1523
1524         return TDM_ERROR_NONE;
1525 }
1526 /* LCOV_EXCL_STOP */