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 int tdm_debug_module;
 686 int tdm_debug_dump;
 687 int tdm_ttrace_module;
 688 int tdm_ttrace_output;
 689
 690 static tdm_private_display *g_private_display;
 691 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 692
 693 /* LCOV_EXCL_START */
 694 static tdm_error
 695 _tdm_display_check_module(tdm_backend_module *module)
 696 {
 697         int major, minor;
 698
 699         TDM_INFO("TDM ABI version : %d.%d",
 700                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 701
 702         if (!module->name) {
 703                 TDM_ERR("TDM backend doesn't have name");
 704                 return TDM_ERROR_BAD_MODULE;
 705         }
 706
 707         if (!module->vendor) {
 708                 TDM_ERR("TDM backend doesn't have vendor");
 709                 return TDM_ERROR_BAD_MODULE;
 710         }
 711
 712         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 713         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 714
 715         TDM_INFO("TDM module name: %s", module->name);
 716         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 717         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 718
 719         if (major != TDM_MAJOR_VERSION) {
 720                 TDM_ERR("'%s' major version mismatch, %d != %d",
 721                                 module->name, major, TDM_MAJOR_VERSION);
 722                 return TDM_ERROR_BAD_MODULE;
 723         }
 724
 725         if (minor > TDM_MINOR_VERSION) {
 726                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 727                                 module->name, minor, TDM_MINOR_VERSION);
 728                 return TDM_ERROR_BAD_MODULE;
 729         }
 730
 731         if (!module->init) {
 732                 TDM_ERR("'%s' doesn't have init function", module->name);
 733                 return TDM_ERROR_BAD_MODULE;
 734         }
 735
 736         if (!module->deinit) {
 737                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 738                 return TDM_ERROR_BAD_MODULE;
 739         }
 740
 741         return TDM_ERROR_NONE;
 742 }
 743
 744 static tdm_error
 745 _tdm_display_check_backend_functions(tdm_private_backend *private_backend)
 746 {
 747         tdm_func_display *func_display = &private_backend->func_display;
 748         tdm_func_output *func_output = &private_backend->func_output;
 749         tdm_func_layer *func_layer = &private_backend->func_layer;
 750         tdm_error ret;
 751
 752         /* below functions should be implemented in backend side */
 753
 754         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 755         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 756         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 757         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 758         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 759
 760         ret = func_display->display_get_capability(private_backend->bdata, &private_backend->caps_display);
 761         if (ret != TDM_ERROR_NONE) {
 762                 TDM_ERR("display_get_capability() failed");
 763                 return TDM_ERROR_BAD_MODULE;
 764         }
 765
 766         if (private_backend->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 767                 tdm_func_pp *func_pp = &private_backend->func_pp;
 768                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 769                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 770                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 771                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 772                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 773         }
 774
 775         if (private_backend->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 776                 tdm_func_capture *func_capture = &private_backend->func_capture;
 777                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 778                 if (private_backend->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 779                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 780                 if (private_backend->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 781                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 782                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 783                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 784                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 785         }
 786
 787         return TDM_ERROR_NONE;
 788 }
 789
 790 static tdm_error
 791 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 792                                                                    const char *file)
 793 {
 794         char path[TDM_PATH_LEN] = {0,};
 795         void *module = NULL;
 796         tdm_backend_module *module_data;
 797         tdm_backend_data *bdata = NULL;
 798         tdm_private_backend *private_backend = NULL;
 799         tdm_error ret;
 800         double stamp;
 801         int size;
 802
 803         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 804         if (size >= (int)sizeof(path)) {
 805                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 806                 return TDM_ERROR_BAD_MODULE;
 807         };
 808
 809         private_backend = calloc(1, sizeof *private_backend);
 810         if (!private_backend) {
 811                 TDM_ERR("alloc failed: %m");
 812                 ret = TDM_ERROR_OUT_OF_MEMORY;
 813                 goto failed_load;
 814         }
 815
 816         private_backend->private_display = private_display;
 817
 818         stamp = tdm_helper_get_time();
 819
 820         TDM_TRACE_BEGIN("TDM_Load_Backend");
 821         module = dlopen(path, RTLD_LAZY);
 822         if (!module) {
 823                 TDM_ERR("failed to load module: %s(%s)", dlerror(), file);
 824                 TDM_TRACE_END();
 825                 ret = TDM_ERROR_BAD_MODULE;
 826                 goto failed_load;
 827         }
 828
 829         private_backend->module = module;
 830
 831         module_data = dlsym(module, "tdm_backend_module_data");
 832         if (!module_data) {
 833                 TDM_ERR("'%s' doesn't have data object", file);
 834                 ret = TDM_ERROR_BAD_MODULE;
 835                 TDM_TRACE_END();
 836                 goto failed_load;
 837         }
 838         TDM_TRACE_END();
 839
 840         private_backend->module_data = module_data;
 841
 842         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 843
 844         /* check if version, init() and deinit() are valid or not */
 845         ret = _tdm_display_check_module(module_data);
 846         if (ret != TDM_ERROR_NONE) {
 847                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
 848                 goto failed_load;
 849         }
 850
 851         private_display->current_backend = private_backend;
 852
 853         /* We don't care if backend_data is NULL or not. It's up to backend. */
 854         TDM_TRACE_BEGIN("TDM_Init_Backend");
 855         stamp = tdm_helper_get_time();
 856         bdata = module_data->init((tdm_display *)private_display, &ret);
 857         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 858         TDM_TRACE_END();
 859
 860         private_display->current_backend = NULL;
 861
 862         private_backend->bdata = bdata;
 863
 864         if (ret != TDM_ERROR_NONE) {
 865                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
 866                 goto failed_load;
 867         }
 868
 869         ret = _tdm_display_check_backend_functions(private_backend);
 870         if (ret != TDM_ERROR_NONE) {
 871                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
 872                 goto failed_load;
 873         }
 874
 875         LIST_INITHEAD(&private_backend->output_list);
 876         LIST_INITHEAD(&private_backend->pp_list);
 877         LIST_INITHEAD(&private_backend->capture_list);
 878
 879         LIST_ADDTAIL(&private_backend->link, &private_display->backend_list);
 880
 881         TDM_INFO("Success to load '%s' module", module_data->name);
 882
 883         return TDM_ERROR_NONE;
 884 failed_load:
 885         if (bdata)
 886                 module_data->deinit(bdata);
 887         dlclose(module);
 888         if (private_backend)
 889                 free(private_backend);
 890         return ret;
 891 }
 892
 893 static tdm_error
 894 _tdm_display_load_modules(tdm_private_display *private_display)
 895 {
 896         const char *module_names;
 897         tdm_error ret = 0;
 898         char temp[TDM_PATH_LEN];
 899         char *arg;
 900         char *end;
 901
 902         LIST_INITHEAD(&private_display->backend_list);
 903
 904         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
 905
 906         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
 907
 908         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
 909         while (arg) {
 910                 TDM_INFO("loading a %s backend", arg);
 911                 ret = _tdm_display_load_module_with_file(private_display, arg);
 912                 if (ret == TDM_ERROR_NONE)
 913                         TDM_INFO("%s backend loading success", arg);
 914                 else
 915                         TDM_INFO("%s backend loading failed", arg);
 916                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
 917         }
 918
 919         /* load bufmgr priv from dummy lib */
 920         if (LIST_IS_EMPTY(&private_display->backend_list)) {
 921                 TDM_WRN("No backend. loading a %s backend", TDM_DUMMY_MODULE);
 922                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 923                 if (ret == TDM_ERROR_NONE)
 924                         TDM_INFO("%s backend loading success", TDM_DUMMY_MODULE);
 925                 else
 926                         TDM_INFO("%s backend loading failed", TDM_DUMMY_MODULE);
 927         }
 928
 929         return ret;
 930 }
 931
 932 static void
 933 _tdm_display_unload_modules(tdm_private_display *private_display)
 934 {
 935         tdm_private_backend *private_backend = NULL, *bb = NULL;
 936
 937         LIST_FOR_EACH_ENTRY_SAFE(private_backend, bb, &private_display->backend_list, link) {
 938                 LIST_DEL(&private_backend->link);
 939
 940                 if (private_backend->module_data)
 941                         private_backend->module_data->deinit(private_backend->bdata);
 942                 if (private_backend->module)
 943                         dlclose(private_backend->module);
 944
 945                 free(private_backend);
 946         }
 947 }
 948 /* LCOV_EXCL_STOP */
 949
 950 EXTERN tdm_display *
 951 tdm_display_init(tdm_error *error)
 952 {
 953         tdm_private_display *private_display = NULL;
 954         const char *str;
 955         tdm_error ret;
 956         double stamp1, stamp2, start;
 957         int mode;
 958
 959         pthread_mutex_lock(&gLock);
 960
 961         if (g_private_display) {
 962                 g_private_display->init_count++;
 963                 pthread_mutex_unlock(&gLock);
 964                 if (error)
 965                         *error = TDM_ERROR_NONE;
 966                 return g_private_display;
 967         }
 968
 969         start = stamp1 = tdm_helper_get_time();
 970
 971         stamp2 = tdm_helper_get_time();
 972         TDM_INFO("config init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 973         stamp1 = stamp2;
 974
 975         private_display = calloc(1, sizeof(tdm_private_display));
 976         if (!private_display) {
 977                 /* LCOV_EXCL_START */
 978                 ret = TDM_ERROR_OUT_OF_MEMORY;
 979                 TDM_ERR("'private_display != NULL' failed");
 980                 goto failed_alloc;
 981                 /* LCOV_EXCL_STOP */
 982         }
 983
 984         private_display->stamp = tdm_helper_get_time();
 985
 986         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
 987         if (str)
 988                 tdm_display_enable_debug_module(str);
 989
 990         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
 991         if (str)
 992                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 993
 994         if (pthread_mutex_init(&private_display->lock, NULL)) {
 995                 /* LCOV_EXCL_START */
 996                 ret = TDM_ERROR_OPERATION_FAILED;
 997                 TDM_ERR("mutex init failed: %m");
 998                 goto failed_mutex_init;
 999                 /* LCOV_EXCL_STOP */
1000         }
1001
1002         _pthread_mutex_lock(&private_display->lock);
1003
1004         stamp2 = tdm_helper_get_time();
1005         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1006         stamp1 = stamp2;
1007
1008         ret = tdm_event_loop_init(private_display);
1009         if (ret != TDM_ERROR_NONE)
1010                 goto failed_event;
1011
1012         stamp2 = tdm_helper_get_time();
1013         TDM_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1014         stamp1 = stamp2;
1015
1016         ret = tdm_vblank_init(private_display);
1017         if (ret != TDM_ERROR_NONE)
1018                 goto failed_vblank;
1019
1020         ret = tdm_output_init(private_display);
1021         if (ret != TDM_ERROR_NONE)
1022                 goto failed_load;
1023
1024         ret = tdm_pp_init(private_display);
1025         if (ret != TDM_ERROR_NONE)
1026                 goto failed_load;
1027
1028         ret = tdm_capture_init(private_display);
1029         if (ret != TDM_ERROR_NONE)
1030                 goto failed_load;
1031
1032         ret = _tdm_display_load_modules(private_display);
1033         if (ret != TDM_ERROR_NONE)
1034                 goto failed_load;
1035
1036         stamp2 = tdm_helper_get_time();
1037         TDM_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1038         stamp1 = stamp2;
1039
1040 #ifdef INIT_BUFMGR
1041         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1042         if (tdm_drm_fd >= 0) {
1043                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1044                 close(tdm_drm_fd);
1045                 if (!private_display->bufmgr) {
1046                         TDM_ERR("tbm_bufmgr_init failed");
1047                         goto failed_update;
1048                 } else {
1049                         TDM_INFO("tbm_bufmgr_init successed");
1050                 }
1051
1052                 stamp2 = tdm_helper_get_time();
1053                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1054                 stamp1 = stamp2;
1055         }
1056 #endif
1057
1058         TDM_TRACE_BEGIN("TDM_Update_Display");
1059         ret = _tdm_display_update(private_display);
1060         TDM_TRACE_END();
1061         if (ret != TDM_ERROR_NONE)
1062                 goto failed_update;
1063
1064         stamp2 = tdm_helper_get_time();
1065         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1066         stamp1 = stamp2;
1067
1068         tdm_event_loop_create_backend_source(private_display);
1069
1070         private_display->init_count = 1;
1071         g_private_display = private_display;
1072
1073         tdm_private_backend *b = NULL;
1074         tdm_private_output *o = NULL;
1075         LIST_FOR_EACH_ENTRY(b, &private_display->backend_list, link) {
1076                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1077                         if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1078                                 tdm_output_need_validate_event_init(o);
1079                 }
1080         }
1081
1082         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1083          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1084          * this functionality can be turned off which means a default mode */
1085         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1086         if (mode > 0) {
1087                 tdm_private_backend *b = NULL;
1088                 tdm_private_output *o = NULL;
1089
1090                 /* outputs which support hwc capability can work only
1091                  * if commit_per_vblank mode is '0' (default mode) */
1092                 LIST_FOR_EACH_ENTRY(b, &private_display->backend_list, link) {
1093                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1094                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1095                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1096                         }
1097                 }
1098         }
1099
1100         if (error)
1101                 *error = TDM_ERROR_NONE;
1102
1103         _pthread_mutex_unlock(&private_display->lock);
1104         pthread_mutex_unlock(&gLock);
1105
1106         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1107
1108         return (tdm_display *)private_display;
1109
1110 /* LCOV_EXCL_START */
1111 failed_update:
1112         _tdm_display_unload_modules(private_display);
1113 failed_load:
1114         tdm_event_loop_stop(private_display);
1115         tdm_event_loop_deinit(private_display);
1116 failed_event:
1117         tdm_vblank_deinit(private_display);
1118 failed_vblank:
1119         _pthread_mutex_unlock(&private_display->lock);
1120         pthread_mutex_destroy(&private_display->lock);
1121 failed_mutex_init:
1122         free(private_display);
1123 failed_alloc:
1124         if (error)
1125                 *error = ret;
1126         pthread_mutex_unlock(&gLock);
1127         return NULL;
1128 /* LCOV_EXCL_STOP */
1129 }
1130
1131 EXTERN void
1132 tdm_display_deinit(tdm_display *dpy)
1133 {
1134         tdm_private_display *private_display = dpy;
1135
1136         if (!private_display)
1137                 return;
1138
1139         TDM_RETURN_IF_FAIL(tdm_display_is_valid(dpy));
1140
1141         pthread_mutex_lock(&gLock);
1142
1143         private_display->init_count--;
1144         if (private_display->init_count > 0) {
1145                 pthread_mutex_unlock(&gLock);
1146                 return;
1147         }
1148
1149         /* dont move the position of lock/unlock. all resource should be protected
1150          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1151          * things because it's finalized.
1152          */
1153         _pthread_mutex_lock(&private_display->lock);
1154         tdm_event_loop_stop(private_display);
1155         tdm_event_loop_deinit(private_display);
1156         _pthread_mutex_unlock(&private_display->lock);
1157
1158         /* when private_output is destroyed, all vblank resources of client and server
1159          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1160          * we can unload backend modulues.
1161          */
1162         _tdm_display_destroy_private_display(private_display);
1163         _tdm_display_unload_modules(private_display);
1164
1165         tdm_vblank_deinit(private_display);
1166
1167 #ifdef INIT_BUFMGR
1168         if (private_display->bufmgr)
1169                 tbm_bufmgr_deinit(private_display->bufmgr);
1170 #endif
1171
1172         tbm_drm_helper_unset_tbm_master_fd();
1173
1174         pthread_mutex_destroy(&private_display->lock);
1175         free(private_display);
1176         g_private_display = NULL;
1177
1178         if (tdm_debug_dump_dir) {
1179                 free(tdm_debug_dump_dir);
1180                 tdm_debug_dump_dir = NULL;
1181         }
1182
1183         tdm_config_deinit();
1184
1185         pthread_mutex_unlock(&gLock);
1186
1187         TDM_INFO("done");
1188 }
1189
1190 INTERN tdm_private_display *
1191 tdm_display_get(void)
1192 {
1193         return g_private_display;
1194 }
1195
1196 INTERN int
1197 tdm_display_is_valid(tdm_display *dpy)
1198 {
1199         if (dpy != NULL && dpy == g_private_display)
1200                 return 1;
1201         return 0;
1202 }
1203
1204 INTERN int
1205 tdm_output_is_valid(tdm_output *output)
1206 {
1207         tdm_private_backend *b = NULL;
1208         tdm_private_output *o = NULL;
1209
1210         if (!output || !g_private_display)
1211                 return 0;
1212
1213         LIST_FOR_EACH_ENTRY(b, &g_private_display->backend_list, link) {
1214                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link)
1215                         if (o == output)
1216                                 return 1;
1217         }
1218
1219         return 0;
1220 }
1221
1222 /* LCOV_EXCL_START */
1223 INTERN int
1224 tdm_backend_check_module_abi(tdm_private_backend *private_backend, int abimaj, int abimin)
1225 {
1226         tdm_backend_module *module = private_backend->module_data;
1227
1228         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1229                 return 0;
1230
1231         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1232                 return 0;
1233
1234         return 1;
1235 }
1236
1237 INTERN tdm_error
1238 tdm_display_enable_debug_module(const char*modules)
1239 {
1240         char temp[TDM_PATH_LEN];
1241         char *arg;
1242         char *end;
1243
1244         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1245
1246         tdm_debug_module = 0;
1247
1248         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1249         while (arg) {
1250                 if (!strncmp(arg, "none", 4)) {
1251                         tdm_debug_module = 0;
1252                         return TDM_ERROR_NONE;
1253                 }
1254                 if (!strncmp(arg, "all", 3)) {
1255                         tdm_debug_module = 0xFFFFFFFF;
1256                         return TDM_ERROR_NONE;
1257                 }
1258                 if (!strncmp(arg, "buffer", 6))
1259                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1260                 else if (!strncmp(arg, "event", 5))
1261                         tdm_debug_module |= TDM_DEBUG_EVENT;
1262                 else if (!strncmp(arg, "thread", 6))
1263                         tdm_debug_module |= TDM_DEBUG_THREAD;
1264                 else if (!strncmp(arg, "mutex", 5))
1265                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1266                 else if (!strncmp(arg, "vblank", 6))
1267                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1268                 else if (!strncmp(arg, "commit", 6))
1269                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1270
1271                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1272         }
1273
1274         TDM_INFO("module debugging... '%s'", modules);
1275
1276         return TDM_ERROR_NONE;
1277 }
1278
1279 INTERN tdm_error
1280 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1281 {
1282         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1283         char *path = NULL, *path2;
1284         char *arg;
1285         char *end;
1286
1287         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1288         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1289         if (!path2 || path2[0] == '\0')
1290                 path2 = TDM_DUMP_DIR;
1291         else
1292                 path2++;
1293
1294         tdm_debug_dump = 0;
1295
1296         snprintf(temp, sizeof(temp), "%s", dump_str);
1297         arg = strtok_r(temp, ",", &end);
1298         TDM_GOTO_IF_FAIL(arg != NULL, done);
1299
1300         if (!strncmp(arg, "none", 4)) {
1301                 tdm_debug_dump = 0;
1302                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1303                 if (tdm_debug_dump_dir) {
1304                         free(tdm_debug_dump_dir);
1305                         tdm_debug_dump_dir = NULL;
1306                 }
1307                 goto done;
1308         }
1309
1310         path = tdm_helper_dump_make_directory(path2, reply, len);
1311         TDM_GOTO_IF_FAIL(path != NULL, done);
1312
1313         if (!strncmp(arg, "current", 7)) {
1314                 tdm_private_backend *b = NULL;
1315                 tdm_private_output *o = NULL;
1316
1317                 if (!private_display) {
1318                         TDM_WRN("no private_display");
1319                         goto done;
1320                 }
1321
1322                 LIST_FOR_EACH_ENTRY(b, &private_display->backend_list, link) {
1323                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1324                                 tdm_private_layer *l = NULL;
1325                                 LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1326                                         char str[TDM_PATH_LEN];
1327                                         if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1328                                                 continue;
1329                                         if (!l->showing_buffer)
1330                                                 continue;
1331                                         snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1332                                         tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1333                                 }
1334                         }
1335                 }
1336
1337                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1338                 goto done;
1339         }
1340
1341         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1342
1343         while (arg) {
1344                 if (!strncmp(arg, "all", 3)) {
1345                         tdm_debug_dump = 0xFFFFFFFF;
1346                         goto done;
1347                 } else if (!strncmp(arg, "layer", 5)) {
1348                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1349                 } else if (!strncmp(arg, "pp", 2)) {
1350                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1351                 } else if (!strncmp(arg, "capture", 7)) {
1352                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1353                 } else if (!strncmp(arg, "window", 6)) {
1354                         tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
1355                 } else
1356                         goto done;
1357
1358                 arg = strtok_r(NULL, ",", &end);
1359         }
1360
1361         if (tdm_debug_dump_dir)
1362                 free(tdm_debug_dump_dir);
1363
1364         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1365
1366         TDM_INFO("dump... '%s'", dump_str);
1367
1368 done:
1369         if (path)
1370                 free(path);
1371
1372         return TDM_ERROR_NONE;
1373 }
1374
1375 static void
1376 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1377                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1378 {
1379         tdm_error ret = TDM_ERROR_NONE;
1380
1381         TDM_TRACE_MARK("VSYNC");
1382
1383         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1384         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1385 }
1386
1387 INTERN tdm_error
1388 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1389 {
1390         tdm_private_display *private_display = dpy;
1391         tdm_private_backend *private_backend = NULL;
1392         tdm_private_output *private_output = NULL;
1393         const tdm_output_mode *mode = NULL;
1394         tdm_vblank *vblank = NULL;
1395         tdm_error ret = TDM_ERROR_NONE;
1396
1397         if (!enable) {
1398                 LIST_FOR_EACH_ENTRY(private_backend, &private_display->backend_list, link) {
1399                         LIST_FOR_EACH_ENTRY(private_output, &private_backend->output_list, link) {
1400                                 if (private_output->ttrace_vblank)
1401                                         tdm_vblank_destroy(private_output->ttrace_vblank);
1402                                 private_output->ttrace_vblank = NULL;
1403                         }
1404                 }
1405                 return TDM_ERROR_NONE;
1406         }
1407
1408         private_output = output;
1409         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1410
1411         if (private_output->ttrace_vblank)
1412                 return TDM_ERROR_NONE;
1413
1414         vblank = tdm_vblank_create(private_display, output, &ret);
1415         TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1416
1417         ret = tdm_output_get_mode(output, &mode);
1418         TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1419
1420         ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1421         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1422
1423         ret = tdm_vblank_set_enable_fake(vblank, 1);
1424         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1425
1426         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1427         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1428
1429         private_output->ttrace_vblank = vblank;
1430
1431         return TDM_ERROR_NONE;
1432
1433 enable_fail:
1434         if (vblank)
1435                 tdm_vblank_destroy(vblank);
1436
1437         return ret;
1438 }
1439
1440 INTERN tdm_error
1441 tdm_display_enable_ttrace(tdm_private_display *private_display, const char *ttrace, int output_id, char *reply, int *len)
1442 {
1443         char temp[TDM_PATH_LEN];
1444         char *arg;
1445         char *end;
1446         tdm_output *output;
1447         tdm_error ret;
1448         tdm_output_type type;
1449
1450         snprintf(temp, TDM_PATH_LEN, "%s", ttrace);
1451
1452         tdm_ttrace_output = output_id;
1453         tdm_ttrace_module = 0;
1454
1455         output = tdm_display_get_output(private_display, output_id, &ret);
1456         if (!output) {
1457                 TDM_SNPRINTF(reply, len, "can't find the output_id(%d)\n", output_id);
1458                 return ret;
1459         }
1460
1461         ret = tdm_output_get_output_type(output, &type);
1462         if (ret != TDM_ERROR_NONE) {
1463                 TDM_SNPRINTF(reply, len, "can't find the type of output_id(%d)\n", output_id);
1464                 return ret;
1465         }
1466
1467         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1468         while (arg) {
1469                 if (!strncmp(arg, "none", 4))
1470                         tdm_ttrace_module = 0;
1471                 else if (!strncmp(arg, "all", 3))
1472                         tdm_ttrace_module = 0xFFFFFFFF;
1473                 else if (!strncmp(arg, "vsync", 5))
1474                         tdm_ttrace_module |= TDM_TTRACE_VSYNC;
1475                 else if (!strncmp(arg, "client_vblank", 13))
1476                         tdm_ttrace_module |= TDM_TTRACE_CLIENT_VBLANK;
1477                 else if (!strncmp(arg, "server_vblank", 13))
1478                         tdm_ttrace_module |= TDM_TTRACE_SERVER_VBLANK;
1479                 else if (!strncmp(arg, "vblank", 6))
1480                         tdm_ttrace_module |= TDM_TTRACE_VBLANK;
1481                 else if (!strncmp(arg, "layer", 5))
1482                         tdm_ttrace_module |= TDM_TTRACE_LAYER;
1483                 else if (!strncmp(arg, "pp", 2))
1484                         tdm_ttrace_module |= TDM_TTRACE_PP;
1485                 else if (!strncmp(arg, "capture", 7))
1486                         tdm_ttrace_module |= TDM_TTRACE_CAPTURE;
1487                 else  {
1488                         tdm_ttrace_module = 0;
1489                         tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1490                         tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1491                         TDM_SNPRINTF(reply, len, "unknown option: '%s'\n", arg);
1492                         return TDM_ERROR_NONE;
1493                 }
1494
1495                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1496         }
1497
1498         TDM_SNPRINTF(reply, len, "ttrace debugging... '%s' %x\n", ttrace, tdm_ttrace_module);
1499
1500         if (tdm_ttrace_module & TDM_TTRACE_VSYNC)
1501                 tdm_display_enable_ttrace_vblank(private_display, output, 1);
1502         else
1503                 tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1504
1505         if (tdm_ttrace_module & TDM_TTRACE_CLIENT_VBLANK)
1506                 tdm_server_enable_ttrace_client_vblank(private_display, output, 1);
1507         else
1508                 tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1509
1510         return TDM_ERROR_NONE;
1511 }
1512
1513 INTERN tdm_error
1514 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1515 {
1516         private_display->print_fps = enable;
1517
1518         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1519
1520         return TDM_ERROR_NONE;
1521 }
1522 /* LCOV_EXCL_STOP */