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.h"
  41 #include "tdm_backend.h"
  42 #include "tdm_private.h"
  43 #include "tdm_helper.h"
  44 #include <tbm_drm_helper.h>
  45
  46 pthread_mutex_t tdm_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  47 int tdm_mutex_locked;
  48 const char *tdm_mutex_lock_func;
  49 int tdm_mutex_lock_line;
  50 const char *tdm_mutex_unlock_func;
  51 int tdm_mutex_unlock_line;
  52
  53 /* LCOV_EXCL_START */
  54 static tdm_private_layer *
  55 _tdm_display_find_private_layer(tdm_private_output *private_output,
  56                                                                 tdm_layer *layer_backend)
  57 {
  58         tdm_private_layer *private_layer = NULL;
  59
  60         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  61                 if (private_layer->layer_backend == layer_backend)
  62                         return private_layer;
  63         }
  64
  65         return NULL;
  66 }
  67
  68 static tdm_private_output *
  69 _tdm_display_find_private_output(tdm_private_display *private_display,
  70                                                                  tdm_output *output_backend)
  71 {
  72         tdm_private_output *private_output = NULL;
  73
  74         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
  75                 if (private_output->output_backend == output_backend)
  76                         return private_output;
  77         }
  78
  79         return NULL;
  80 }
  81
  82 INTERN tdm_private_output *
  83 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
  84 {
  85         tdm_private_output *private_output = NULL;
  86
  87         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
  88                 if (private_output->stamp == stamp)
  89                         return private_output;
  90         }
  91
  92         return NULL;
  93 }
  94
  95 static void
  96 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
  97 {
  98         if (caps_pp->formats)
  99                 free(caps_pp->formats);
 100
 101         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 102 }
 103
 104 static void
 105 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 106 {
 107         if (caps_capture->formats)
 108                 free(caps_capture->formats);
 109
 110         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 111 }
 112
 113 static void
 114 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 115 {
 116         if (caps_layer->formats)
 117                 free(caps_layer->formats);
 118
 119         if (caps_layer->props)
 120                 free(caps_layer->props);
 121
 122         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 123 }
 124
 125 static void
 126 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 127 {
 128         if (caps_output->modes)
 129                 free(caps_output->modes);
 130
 131         if (caps_output->props)
 132                 free(caps_output->props);
 133
 134         memset(caps_output, 0, sizeof(tdm_caps_output));
 135 }
 136
 137 static void
 138 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 139 {
 140         tdm_private_capture *c = NULL, *cc = NULL;
 141
 142         LIST_DEL(&private_layer->link);
 143
 144         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 145         tdm_capture_destroy_internal(c);
 146
 147         _tdm_display_destroy_caps_layer(&private_layer->caps);
 148
 149         free(private_layer);
 150 }
 151
 152 static void
 153 _tdm_display_destroy_private_output(tdm_private_output *private_output)
 154 {
 155         tdm_private_display *private_display = private_output->private_display;
 156         tdm_private_layer *l = NULL, *ll = NULL;
 157         tdm_private_hwc_window *hw = NULL, *hww = NULL;
 158         tdm_private_capture *c = NULL, *cc = NULL;
 159         tdm_private_vblank_handler *v = NULL, *vv = NULL;
 160         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 161         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 162         tdm_private_change_handler *h = NULL, *hh = NULL;
 163
 164         LIST_DEL(&private_output->link);
 165
 166         free(private_output->layers_ptr);
 167
 168         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 169                 LIST_DEL(&v->link);
 170                 free(v);
 171         }
 172
 173         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 174                 LIST_DEL(&om->link);
 175                 free(om);
 176         }
 177
 178         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 179                 LIST_DEL(&lm->link);
 180                 free(lm);
 181         }
 182
 183         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 184                 LIST_DEL(&lm->link);
 185                 free(lm);
 186         }
 187
 188         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_main, link) {
 189                 LIST_DEL(&h->link);
 190                 free(h);
 191         }
 192
 193         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_sub, link) {
 194                 LIST_DEL(&h->link);
 195                 free(h);
 196         }
 197
 198         if (private_output->vblank) {
 199                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 200                 _pthread_mutex_unlock(&private_display->lock);
 201                 tdm_vblank_destroy(private_output->vblank);
 202                 _pthread_mutex_lock(&private_display->lock);
 203         }
 204
 205         if (private_output->ttrace_vblank) {
 206                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 207                 _pthread_mutex_unlock(&private_display->lock);
 208                 tdm_vblank_destroy(private_output->ttrace_vblank);
 209                 _pthread_mutex_lock(&private_display->lock);
 210         }
 211
 212         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 213         tdm_capture_destroy_internal(c);
 214
 215         LIST_FOR_EACH_ENTRY_SAFE(hw, hww, &private_output->hwc_window_list, link)
 216         tdm_hwc_window_destroy_internal(hw);
 217
 218         LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 219         _tdm_display_destroy_private_layer(l);
 220
 221         _tdm_display_destroy_caps_output(&private_output->caps);
 222
 223         if (private_output->dpms_changed_timer)
 224                 tdm_event_loop_source_remove(private_output->dpms_changed_timer);
 225
 226         tdm_event_loop_source_remove(private_output->need_validate.event_source);
 227         close(private_output->need_validate.event_fd);
 228
 229         private_output->stamp = 0;
 230         free(private_output);
 231 }
 232
 233 static void
 234 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 235 {
 236         tdm_private_output *o = NULL, *oo = NULL;
 237         tdm_private_pp *p = NULL, *pp = NULL;
 238
 239         free(private_display->outputs_ptr);
 240         if (private_display->outputs) {
 241                 free(private_display->outputs);
 242                 private_display->outputs = NULL;
 243         }
 244
 245         LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_display->pp_list, link)
 246         tdm_pp_destroy_internal(p);
 247
 248         LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_display->output_list, link)
 249         _tdm_display_destroy_private_output(o);
 250
 251         _tdm_display_destroy_caps_pp(&private_display->caps_pp);
 252         _tdm_display_destroy_caps_capture(&private_display->caps_capture);
 253
 254         private_display->capabilities = 0;
 255         private_display->caps_display.max_layer_count = 0;
 256 }
 257
 258 static tdm_error
 259 _tdm_display_update_caps_pp(tdm_private_display *private_display,
 260                                                         tdm_caps_pp *caps)
 261 {
 262         tdm_func_display *func_display = &private_display->func_display;
 263         tdm_error ret;
 264
 265         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP))
 266                 return TDM_ERROR_NONE;
 267
 268         if (!func_display->display_get_pp_capability) {
 269                 TDM_ERR("no display_get_pp_capability()");
 270                 return TDM_ERROR_BAD_MODULE;
 271         }
 272
 273         ret = func_display->display_get_pp_capability(private_display->bdata, caps);
 274         if (ret != TDM_ERROR_NONE) {
 275                 TDM_ERR("display_get_pp_capability() failed");
 276                 return TDM_ERROR_BAD_MODULE;
 277         }
 278
 279         return TDM_ERROR_NONE;
 280 }
 281
 282 static tdm_error
 283 _tdm_display_update_caps_capture(tdm_private_display *private_display,
 284                                                                  tdm_caps_capture *caps)
 285 {
 286         tdm_func_display *func_display = &private_display->func_display;
 287         tdm_error ret;
 288
 289         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE))
 290                 return TDM_ERROR_NONE;
 291
 292         if (!func_display->display_get_capture_capability) {
 293                 TDM_ERR("no display_get_capture_capability()");
 294                 return TDM_ERROR_BAD_MODULE;
 295         }
 296
 297         ret = func_display->display_get_capture_capability(private_display->bdata, caps);
 298         if (ret != TDM_ERROR_NONE) {
 299                 TDM_ERR("display_get_capture_capability() failed");
 300                 return TDM_ERROR_BAD_MODULE;
 301         }
 302
 303         return TDM_ERROR_NONE;
 304 }
 305
 306 static tdm_error
 307 _tdm_display_update_caps_layer(tdm_private_display *private_display,
 308                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 309 {
 310         tdm_func_layer *func_layer = &private_display->func_layer;
 311         tdm_error ret;
 312
 313         if (!func_layer->layer_get_capability) {
 314                 TDM_ERR("no layer_get_capability()");
 315                 return TDM_ERROR_BAD_MODULE;
 316         }
 317
 318         ret = func_layer->layer_get_capability(layer_backend, caps);
 319         if (ret != TDM_ERROR_NONE) {
 320                 TDM_ERR("layer_get_capability() failed");
 321                 return TDM_ERROR_BAD_MODULE;
 322         }
 323
 324         return TDM_ERROR_NONE;
 325 }
 326
 327 static tdm_error
 328 _tdm_display_update_caps_output(tdm_private_display *private_display, int pipe,
 329                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 330 {
 331         tdm_func_output *func_output = &private_display->func_output;
 332         char temp[TDM_NAME_LEN];
 333         tdm_error ret;
 334         double stamp;
 335
 336         if (!func_output->output_get_capability) {
 337                 TDM_ERR("no output_get_capability()");
 338                 return TDM_ERROR_BAD_MODULE;
 339         }
 340
 341         stamp = tdm_helper_get_time();
 342         ret = func_output->output_get_capability(output_backend, caps);
 343         TDM_DBG("backend output_get_capability() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 344
 345         if (ret != TDM_ERROR_NONE) {
 346                 TDM_ERR("output_get_capability() failed");
 347                 return TDM_ERROR_BAD_MODULE;
 348         }
 349
 350         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 351         snprintf(temp, TDM_NAME_LEN, "%s-%d", caps->model, pipe);
 352         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 353
 354         return TDM_ERROR_NONE;
 355 }
 356
 357 static tdm_error
 358 _tdm_display_update_layer(tdm_private_display *private_display,
 359                                                   tdm_private_output *private_output,
 360                                                   tdm_layer *layer_backend, int index)
 361 {
 362         tdm_private_layer *private_layer;
 363         tdm_error ret;
 364
 365         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 366         if (!private_layer) {
 367                 private_layer = calloc(1, sizeof(tdm_private_layer));
 368                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 369
 370                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 371                 private_layer->index = index;
 372                 private_layer->private_display = private_display;
 373                 private_layer->private_output = private_output;
 374                 private_layer->layer_backend = layer_backend;
 375
 376                 LIST_INITHEAD(&private_layer->capture_list);
 377
 378                 private_layer->usable = 1;
 379         } else
 380                 _tdm_display_destroy_caps_layer(&private_layer->caps);
 381
 382         ret = _tdm_display_update_caps_layer(private_display, layer_backend,
 383                                                                                  &private_layer->caps);
 384         if (ret != TDM_ERROR_NONE)
 385                 goto failed_update;
 386
 387         return TDM_ERROR_NONE;
 388 failed_update:
 389         _tdm_display_destroy_private_layer(private_layer);
 390         return ret;
 391 }
 392
 393 INTERN tdm_error
 394 tdm_display_update_output(tdm_private_display *private_display,
 395                                                   tdm_output *output_backend, int pipe)
 396 {
 397         tdm_func_output *func_output = &private_display->func_output;
 398         tdm_private_output *private_output = NULL;
 399         tdm_layer **layers = NULL;
 400         int layer_count = 0, i;
 401         tdm_error ret;
 402
 403         private_output = _tdm_display_find_private_output(private_display, output_backend);
 404         if (!private_output) {
 405                 private_output = calloc(1, sizeof(tdm_private_output));
 406                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 407
 408                 private_output->stamp = tdm_helper_get_time();
 409                 while (tdm_display_find_output_stamp(private_display, private_output->stamp))
 410                         private_output->stamp++;
 411
 412                 LIST_ADDTAIL(&private_output->link, &private_display->output_list);
 413
 414                 private_output->private_display = private_display;
 415                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 416                 private_output->output_backend = output_backend;
 417                 private_output->pipe = pipe;
 418                 private_output->index = pipe;
 419
 420                 LIST_INITHEAD(&private_output->layer_list);
 421                 LIST_INITHEAD(&private_output->hwc_window_list);
 422                 LIST_INITHEAD(&private_output->capture_list);
 423                 LIST_INITHEAD(&private_output->vblank_handler_list);
 424                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 425                 LIST_INITHEAD(&private_output->layer_commit_handler_list);
 426                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 427                 LIST_INITHEAD(&private_output->change_handler_list_main);
 428                 LIST_INITHEAD(&private_output->change_handler_list_sub);
 429
 430                 if (func_output->output_set_status_handler) {
 431                         func_output->output_set_status_handler(private_output->output_backend,
 432                                                                                                    tdm_output_cb_status,
 433                                                                                                    private_output);
 434                         private_output->regist_change_cb = 1;
 435                 }
 436
 437                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 438                                                                                           &private_output->caps);
 439                 if (ret != TDM_ERROR_NONE)
 440                         return ret;
 441         } else {
 442                 tdm_caps_output new_caps;
 443
 444                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 445                                                                                           &new_caps);
 446                 if (ret != TDM_ERROR_NONE)
 447                         return ret;
 448
 449                 /* FIXME: This is very ugly. need to fix after the TDM ABI is changed. */
 450                 if (private_output->caps.status != new_caps.status) {
 451                         _tdm_display_destroy_caps_output(&private_output->caps);
 452                         private_output->caps = new_caps;
 453                         private_output->current_mode = NULL;
 454                 } else {
 455                         tdm_output_mode *old_modes = private_output->caps.modes;
 456                         unsigned int old_mode_count = private_output->caps.mode_count;
 457                         if (new_caps.modes)
 458                                 free(new_caps.modes);
 459                         new_caps.modes = old_modes;
 460                         new_caps.mode_count = old_mode_count;
 461                         if (private_output->caps.props)
 462                                 free(private_output->caps.props);
 463                         private_output->caps = new_caps;
 464                 }
 465         }
 466
 467         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 468         if (ret != TDM_ERROR_NONE)
 469                 goto failed_update;
 470
 471         for (i = 0; i < layer_count; i++) {
 472                 ret = _tdm_display_update_layer(private_display, private_output, layers[i], i);
 473                 if (ret != TDM_ERROR_NONE)
 474                         goto failed_update;
 475         }
 476
 477         free(layers);
 478
 479         return TDM_ERROR_NONE;
 480 failed_update:
 481         _tdm_display_destroy_private_output(private_output);
 482         free(layers);
 483         return ret;
 484 }
 485
 486 static tdm_output **
 487 _tdm_display_set_main_first(tdm_output **outputs, int index)
 488 {
 489         tdm_output *output_tmp = NULL;
 490
 491         if (index == 0)
 492                 return outputs;
 493
 494         output_tmp = outputs[0];
 495         outputs[0] = outputs[index];
 496         outputs[index] = output_tmp;
 497
 498         return outputs;
 499 }
 500
 501 static tdm_output **
 502 _tdm_display_get_ordered_outputs(tdm_private_display *private_display, int *count)
 503 {
 504         tdm_func_display *func_display = &private_display->func_display;
 505         tdm_output **outputs = NULL;
 506         tdm_output **new_outputs = NULL;
 507         tdm_output *output_dsi = NULL;
 508         tdm_output *output_lvds = NULL;
 509         tdm_output *output_hdmia = NULL;
 510         tdm_output *output_hdmib = NULL;
 511         int i, output_count = 0, output_connected_count = 0;
 512         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 513         tdm_error ret;
 514
 515         /* don't change list order if not init time */
 516         if (private_display->outputs)
 517                 return private_display->outputs;
 518
 519         outputs = func_display->display_get_outputs(private_display->bdata, &output_count, &ret);
 520         if (ret != TDM_ERROR_NONE)
 521                 goto failed_get_outputs;
 522
 523         *count = output_count;
 524
 525         if (output_count == 0)
 526                 goto failed_get_outputs;
 527         else if (output_count == 1) {
 528                 private_display->outputs = outputs;
 529                 return outputs;
 530         }
 531
 532         /* count connected outputs */
 533         for (i = 0; i < output_count; i++) {
 534                 tdm_func_output *func_output = &private_display->func_output;
 535                 tdm_caps_output caps;
 536                 memset(&caps, 0, sizeof(tdm_caps_output));
 537
 538                 if (!func_output->output_get_capability) {
 539                         TDM_ERR("no output_get_capability()");
 540                         goto failed_get_outputs;
 541                 }
 542
 543                 ret = func_output->output_get_capability(outputs[i], &caps);
 544                 if (ret != TDM_ERROR_NONE) {
 545                         TDM_ERR("output_get_capability() failed");
 546                         goto failed_get_outputs;
 547                 }
 548
 549                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 550                         output_connected_count++;
 551
 552                         switch (caps.type) {
 553                         case TDM_OUTPUT_TYPE_DSI:
 554                                 output_dsi = outputs[i];
 555                                 index_dsi = i;
 556                                 break;
 557                         case TDM_OUTPUT_TYPE_LVDS:
 558                                 output_lvds = outputs[i];
 559                                 index_lvds = i;
 560                                 break;
 561                         case TDM_OUTPUT_TYPE_HDMIA:
 562                                 output_hdmia = outputs[i];
 563                                 index_hdmia = i;
 564                                 break;
 565                         case TDM_OUTPUT_TYPE_HDMIB:
 566                                 output_hdmib = outputs[i];
 567                                 index_hdmib = i;
 568                                 break;
 569                         default:
 570                                 break;
 571                         }
 572                 }
 573
 574                 _tdm_display_destroy_caps_output(&caps);
 575         }
 576
 577         /* ordering : main output is first */
 578         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 579           * But hdmi is possible, so set hdmi to main display.
 580           * If connected only one output, it is main output.
 581           * If connected outputs over 2, has priority like below.
 582           * (dsi > lvds > hdmi > else)
 583           */
 584         if (output_connected_count == 0) {
 585                 /* hdmi > dsi > lvds > else */
 586                 if (output_hdmia != NULL)
 587                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 588                 else if (output_hdmib != NULL)
 589                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 590                 else if (output_dsi != NULL)
 591                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 592                 else if (output_lvds != NULL)
 593                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 594                 else
 595                         new_outputs = outputs;
 596         } else { /* (output_connected_count > 1) */
 597                 /* dsi > lvds > hdmi > else */
 598                 if (output_dsi != NULL)
 599                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 600                 else if (output_lvds != NULL)
 601                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 602                 else if (output_hdmia != NULL)
 603                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 604                 else if (output_hdmib != NULL)
 605                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 606                 else
 607                         new_outputs = outputs;
 608         }
 609
 610         private_display->outputs = new_outputs;
 611
 612         return new_outputs;
 613
 614 failed_get_outputs:
 615         free(outputs);
 616         *count = 0;
 617         return NULL;
 618 }
 619
 620 static tdm_error
 621 _tdm_display_update_internal(tdm_private_display *private_display,
 622                                                          int only_display)
 623 {
 624         tdm_output **outputs = NULL;
 625         int output_count = 0, i;
 626         tdm_error ret = TDM_ERROR_NONE;
 627
 628         LIST_INITHEAD(&private_display->output_list);
 629         LIST_INITHEAD(&private_display->pp_list);
 630         LIST_INITHEAD(&private_display->capture_list);
 631
 632         if (!only_display) {
 633                 ret = _tdm_display_update_caps_pp(private_display, &private_display->caps_pp);
 634                 if (ret != TDM_ERROR_NONE)
 635                         goto failed_update;
 636
 637                 ret = _tdm_display_update_caps_capture(private_display,
 638                                                                                            &private_display->caps_capture);
 639                 if (ret != TDM_ERROR_NONE)
 640                         goto failed_update;
 641         }
 642
 643         outputs = _tdm_display_get_ordered_outputs(private_display, &output_count);
 644         if (!outputs)
 645                 goto failed_update;
 646
 647         for (i = 0; i < output_count; i++) {
 648                 ret = tdm_display_update_output(private_display, outputs[i], i);
 649                 if (ret != TDM_ERROR_NONE)
 650                         goto failed_update;
 651         }
 652
 653         return TDM_ERROR_NONE;
 654
 655 failed_update:
 656         _tdm_display_destroy_private_display(private_display);
 657         return ret;
 658 }
 659 /* LCOV_EXCL_STOP */
 660
 661 EXTERN tdm_error
 662 tdm_display_update(tdm_display *dpy)
 663 {
 664         tdm_private_display *private_display;
 665         tdm_error ret;
 666
 667         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 668         TDM_RETURN_VAL_IF_FAIL(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER);
 669
 670         private_display = dpy;
 671         _pthread_mutex_lock(&private_display->lock);
 672
 673         ret = _tdm_display_update_internal(private_display, 1);
 674
 675         _pthread_mutex_unlock(&private_display->lock);
 676
 677         return ret;
 678 }
 679
 680 #define SUFFIX_MODULE    ".so"
 681 #define TDM_DEFAULT_MODULE   "libtdm-default"SUFFIX_MODULE
 682 #define TDM_DUMMY_MODULE     "libtdm-dummy"SUFFIX_MODULE
 683
 684 int tdm_debug_module;
 685 int tdm_debug_dump;
 686 int tdm_ttrace_module;
 687 int tdm_ttrace_output;
 688
 689 static tdm_private_display *g_private_display;
 690 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 691
 692 /* LCOV_EXCL_START */
 693 static tdm_error
 694 _tdm_display_check_module(tdm_backend_module *module)
 695 {
 696         int major, minor;
 697
 698         TDM_INFO("TDM ABI version : %d.%d",
 699                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 700
 701         if (!module->name) {
 702                 TDM_ERR("TDM backend doesn't have name");
 703                 return TDM_ERROR_BAD_MODULE;
 704         }
 705
 706         if (!module->vendor) {
 707                 TDM_ERR("TDM backend doesn't have vendor");
 708                 return TDM_ERROR_BAD_MODULE;
 709         }
 710
 711         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 712         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 713
 714         TDM_INFO("TDM module name: %s", module->name);
 715         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 716         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 717
 718         if (major != TDM_MAJOR_VERSION) {
 719                 TDM_ERR("'%s' major version mismatch, %d != %d",
 720                                 module->name, major, TDM_MAJOR_VERSION);
 721                 return TDM_ERROR_BAD_MODULE;
 722         }
 723
 724         if (minor > TDM_MINOR_VERSION) {
 725                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 726                                 module->name, minor, TDM_MINOR_VERSION);
 727                 return TDM_ERROR_BAD_MODULE;
 728         }
 729
 730         if (!module->init) {
 731                 TDM_ERR("'%s' doesn't have init function", module->name);
 732                 return TDM_ERROR_BAD_MODULE;
 733         }
 734
 735         if (!module->deinit) {
 736                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 737                 return TDM_ERROR_BAD_MODULE;
 738         }
 739
 740         return TDM_ERROR_NONE;
 741 }
 742
 743 static tdm_error
 744 _tdm_display_check_backend_functions(tdm_private_display *private_display)
 745 {
 746         tdm_func_display *func_display = &private_display->func_display;
 747         tdm_func_output *func_output = &private_display->func_output;
 748         tdm_func_layer *func_layer = &private_display->func_layer;
 749         tdm_error ret;
 750
 751         /* below functions should be implemented in backend side */
 752
 753         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 754         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 755         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 756         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 757         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 758
 759         ret = func_display->display_get_capability(private_display->bdata, &private_display->caps_display);
 760         if (ret != TDM_ERROR_NONE) {
 761                 TDM_ERR("display_get_capability() failed");
 762                 return TDM_ERROR_BAD_MODULE;
 763         }
 764
 765         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 766                 tdm_func_pp *func_pp = &private_display->func_pp;
 767                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 768                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 769                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 770                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 771                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 772         }
 773
 774         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 775                 tdm_func_capture *func_capture = &private_display->func_capture;
 776                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 777                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 778                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 779                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 780                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 781                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 782                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 783                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 784         }
 785
 786         return TDM_ERROR_NONE;
 787 }
 788
 789 static tdm_error
 790 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 791                                                                    const char *file)
 792 {
 793         char path[PATH_MAX] = {0,};
 794         tdm_backend_module *module_data;
 795         void *module;
 796         tdm_error ret;
 797         double stamp;
 798         int size;
 799
 800         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 801         if (size >= (int)sizeof(path)) {
 802                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 803                 return TDM_ERROR_BAD_MODULE;
 804         };
 805
 806         stamp = tdm_helper_get_time();
 807
 808         TDM_TRACE_BEGIN("TDM_Load_Backend");
 809         module = dlopen(path, RTLD_LAZY);
 810         if (!module) {
 811                 TDM_ERR("failed to load module: %s(%s)", dlerror(), file);
 812                 TDM_TRACE_END();
 813                 return TDM_ERROR_BAD_MODULE;
 814         }
 815
 816         module_data = dlsym(module, "tdm_backend_module_data");
 817         if (!module_data) {
 818                 TDM_ERR("'%s' doesn't have data object", file);
 819                 ret = TDM_ERROR_BAD_MODULE;
 820                 TDM_TRACE_END();
 821                 goto failed_load;
 822         }
 823         TDM_TRACE_END();
 824
 825         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 826
 827         private_display->module_data = module_data;
 828         private_display->module = module;
 829
 830         /* check if version, init() and deinit() are valid or not */
 831         ret = _tdm_display_check_module(module_data);
 832         if (ret != TDM_ERROR_NONE)
 833                 goto failed_load;
 834
 835         /* We don't care if backend_data is NULL or not. It's up to backend. */
 836         TDM_TRACE_BEGIN("TDM_Init_Backend");
 837         stamp = tdm_helper_get_time();
 838         private_display->bdata = module_data->init((tdm_display *)private_display, &ret);
 839         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 840         TDM_TRACE_END();
 841
 842         if (ret != TDM_ERROR_NONE) {
 843                 TDM_ERR("failed to init '%s' module", module_data->name);
 844                 goto failed_load;
 845         }
 846
 847         ret = _tdm_display_check_backend_functions(private_display);
 848         if (ret != TDM_ERROR_NONE) {
 849                 module_data->deinit(private_display->bdata);
 850                 private_display->bdata = NULL;
 851                 goto failed_load;
 852         }
 853
 854         TDM_INFO("Success to load '%s' module", module_data->name);
 855
 856         return TDM_ERROR_NONE;
 857 failed_load:
 858         dlclose(module);
 859         private_display->module_data = NULL;
 860         private_display->module = NULL;
 861         return ret;
 862 }
 863
 864 static tdm_error
 865 _tdm_display_load_module(tdm_private_display *private_display)
 866 {
 867         const char *module_name;
 868         struct dirent **namelist;
 869         int n, len;
 870         tdm_error ret = 0;
 871
 872         module_name = getenv("TDM_MODULE");
 873         if (!module_name)
 874                 module_name = TDM_DEFAULT_MODULE;
 875
 876         len = strlen(module_name);
 877         if (len > TDM_NAME_LEN - 1) {
 878                 TDM_ERR("TDM_MODULE is too long\n");
 879                 return TDM_ERROR_OPERATION_FAILED;
 880         }
 881
 882         /* load bufmgr priv from default lib */
 883         ret = _tdm_display_load_module_with_file(private_display, module_name);
 884         if (ret == TDM_ERROR_NONE)
 885                 return TDM_ERROR_NONE;
 886
 887         /* load bufmgr priv from dummy lib */
 888         ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 889         if (ret == TDM_ERROR_NONE)
 890                 return TDM_ERROR_NONE;
 891
 892         /* load bufmgr priv from configured path */
 893         n = scandir(TDM_MODULE_PATH, &namelist, 0, alphasort);
 894         if (n < 0) {
 895                 TDM_ERR("no module in '%s'\n", TDM_MODULE_PATH);
 896                 return TDM_ERROR_BAD_MODULE;
 897         }
 898
 899         ret = TDM_ERROR_BAD_MODULE;
 900         while (n--) {
 901                 if (ret < 0 && strstr(namelist[n]->d_name, SUFFIX_MODULE))
 902                         ret = _tdm_display_load_module_with_file(private_display, namelist[n]->d_name);
 903
 904                 free(namelist[n]);
 905         }
 906         free(namelist);
 907
 908         return ret;
 909 }
 910
 911 static void
 912 _tdm_display_unload_module(tdm_private_display *private_display)
 913 {
 914         if (private_display->module_data)
 915                 private_display->module_data->deinit(private_display->bdata);
 916         if (private_display->module)
 917                 dlclose(private_display->module);
 918
 919         private_display->bdata = NULL;
 920         private_display->module_data = NULL;
 921         private_display->module = NULL;
 922 }
 923 /* LCOV_EXCL_STOP */
 924
 925 EXTERN tdm_display *
 926 tdm_display_init(tdm_error *error)
 927 {
 928         tdm_private_display *private_display = NULL;
 929         const char *str;
 930         tdm_error ret;
 931         double stamp1, stamp2, start;
 932
 933         pthread_mutex_lock(&gLock);
 934
 935         if (g_private_display) {
 936                 g_private_display->init_count++;
 937                 pthread_mutex_unlock(&gLock);
 938                 if (error)
 939                         *error = TDM_ERROR_NONE;
 940                 return g_private_display;
 941         }
 942
 943         start = stamp1 = tdm_helper_get_time();
 944
 945         private_display = calloc(1, sizeof(tdm_private_display));
 946         if (!private_display) {
 947                 /* LCOV_EXCL_START */
 948                 ret = TDM_ERROR_OUT_OF_MEMORY;
 949                 TDM_ERR("'private_display != NULL' failed");
 950                 goto failed_alloc;
 951                 /* LCOV_EXCL_STOP */
 952         }
 953
 954         str = getenv("TDM_DEBUG_MODULE");
 955         if (str)
 956                 tdm_display_enable_debug_module(str);
 957
 958         str = getenv("TDM_DEBUG_DUMP");
 959         if (str)
 960                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 961
 962         str = getenv("TDM_DEBUG_PATH");
 963         if (str)
 964                 tdm_display_enable_path(str);
 965
 966         if (pthread_mutex_init(&private_display->lock, NULL)) {
 967                 /* LCOV_EXCL_START */
 968                 ret = TDM_ERROR_OPERATION_FAILED;
 969                 TDM_ERR("mutex init failed: %m");
 970                 goto failed_mutex_init;
 971                 /* LCOV_EXCL_STOP */
 972         }
 973
 974         _pthread_mutex_lock(&private_display->lock);
 975
 976         stamp2 = tdm_helper_get_time();
 977         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 978         stamp1 = stamp2;
 979
 980         ret = tdm_event_loop_init(private_display);
 981         if (ret != TDM_ERROR_NONE)
 982                 goto failed_event;
 983
 984         stamp2 = tdm_helper_get_time();
 985         TDM_DBG("creating event loop time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 986         stamp1 = stamp2;
 987
 988         ret = _tdm_display_load_module(private_display);
 989         if (ret != TDM_ERROR_NONE)
 990                 goto failed_load;
 991
 992         stamp2 = tdm_helper_get_time();
 993         TDM_DBG("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 994         stamp1 = stamp2;
 995
 996 #ifdef INIT_BUFMGR
 997         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
 998         if (tdm_drm_fd >= 0) {
 999                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1000                 close(tdm_drm_fd);
1001                 if (!private_display->bufmgr) {
1002                         TDM_ERR("tbm_bufmgr_init failed");
1003                         goto failed_update;
1004                 } else {
1005                         TDM_INFO("tbm_bufmgr_init successed");
1006                 }
1007
1008                 stamp2 = tdm_helper_get_time();
1009                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1010                 stamp1 = stamp2;
1011         }
1012 #endif
1013
1014         TDM_TRACE_BEGIN("TDM_Update_Display");
1015         ret = _tdm_display_update_internal(private_display, 0);
1016         TDM_TRACE_END();
1017         if (ret != TDM_ERROR_NONE)
1018                 goto failed_update;
1019
1020         stamp2 = tdm_helper_get_time();
1021         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1022         stamp1 = stamp2;
1023
1024         tdm_event_loop_create_backend_source(private_display);
1025
1026         private_display->init_count = 1;
1027         g_private_display = private_display;
1028
1029         tdm_private_output *o = NULL;
1030         LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1031                 if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1032                         tdm_output_need_validate_event_init(o);
1033         }
1034
1035         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1036          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1037          * this functionality can be turned off which means a default mode */
1038         str = getenv("TDM_COMMIT_PER_VBLANK");
1039         if (str) {
1040                 tdm_private_output *o = NULL;
1041                 char *end;
1042                 int mode = strtol(str, &end, 10);
1043
1044                 /* outputs which support hwc capability can work only
1045                  * if commit_per_vblank mode is '0' (default mode) */
1046                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link)
1047                         if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1048                                 tdm_output_choose_commit_per_vblank_mode(o, mode);
1049         }
1050
1051         if (error)
1052                 *error = TDM_ERROR_NONE;
1053
1054         _pthread_mutex_unlock(&private_display->lock);
1055         pthread_mutex_unlock(&gLock);
1056
1057         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1058
1059         return (tdm_display *)private_display;
1060
1061 /* LCOV_EXCL_START */
1062 failed_update:
1063         _tdm_display_unload_module(private_display);
1064 failed_load:
1065         tdm_event_loop_stop(private_display);
1066         tdm_event_loop_deinit(private_display);
1067 failed_event:
1068         _pthread_mutex_unlock(&private_display->lock);
1069         pthread_mutex_destroy(&private_display->lock);
1070 failed_mutex_init:
1071         free(private_display);
1072 failed_alloc:
1073         if (error)
1074                 *error = ret;
1075         pthread_mutex_unlock(&gLock);
1076         return NULL;
1077 /* LCOV_EXCL_STOP */
1078 }
1079
1080 EXTERN void
1081 tdm_display_deinit(tdm_display *dpy)
1082 {
1083         tdm_private_display *private_display = dpy;
1084
1085         if (!private_display)
1086                 return;
1087
1088         TDM_RETURN_IF_FAIL(tdm_display_is_valid(dpy));
1089
1090         pthread_mutex_lock(&gLock);
1091
1092         private_display->init_count--;
1093         if (private_display->init_count > 0) {
1094                 pthread_mutex_unlock(&gLock);
1095                 return;
1096         }
1097
1098         /* dont move the position of lock/unlock. all resource should be protected
1099          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1100          * things because it's finalized.
1101          */
1102         _pthread_mutex_lock(&private_display->lock);
1103         tdm_event_loop_stop(private_display);
1104         _tdm_display_destroy_private_display(private_display);
1105         _tdm_display_unload_module(private_display);
1106         _pthread_mutex_unlock(&private_display->lock);
1107
1108         tdm_event_loop_deinit(private_display);
1109
1110 #ifdef INIT_BUFMGR
1111         if (private_display->bufmgr)
1112                 tbm_bufmgr_deinit(private_display->bufmgr);
1113 #endif
1114
1115         tbm_drm_helper_unset_tbm_master_fd();
1116
1117         pthread_mutex_destroy(&private_display->lock);
1118         free(private_display);
1119         g_private_display = NULL;
1120
1121         if (tdm_debug_dump_dir) {
1122                 free(tdm_debug_dump_dir);
1123                 tdm_debug_dump_dir = NULL;
1124         }
1125
1126         pthread_mutex_unlock(&gLock);
1127
1128         TDM_INFO("done");
1129 }
1130
1131 INTERN int
1132 tdm_display_is_valid(tdm_display *dpy)
1133 {
1134         if (dpy != NULL && dpy == g_private_display)
1135                 return 1;
1136         return 0;
1137 }
1138
1139 INTERN int
1140 tdm_output_is_valid(tdm_output *output)
1141 {
1142         tdm_private_output *o = NULL, *private_output = output;
1143         if (output && g_private_display)
1144                 LIST_FOR_EACH_ENTRY(o, &g_private_display->output_list, link)
1145                         if (o == private_output)
1146                                 return 1;
1147         return 0;
1148 }
1149
1150 /* LCOV_EXCL_START */
1151 INTERN int
1152 tdm_display_check_module_abi(tdm_private_display *private_display, int abimaj, int abimin)
1153 {
1154         tdm_backend_module *module = private_display->module_data;
1155
1156         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1157                 return 0;
1158
1159         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1160                 return 0;
1161
1162         return 1;
1163 }
1164
1165 INTERN tdm_error
1166 tdm_display_enable_debug_module(const char*modules)
1167 {
1168         char temp[TDM_PATH_LEN];
1169         char *arg;
1170         char *end;
1171
1172         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1173
1174         tdm_debug_module = 0;
1175
1176         arg = strtok_r(temp, TDM_DELIM, &end);
1177         while (arg) {
1178                 if (!strncmp(arg, "none", 4)) {
1179                         tdm_debug_module = 0;
1180                         return TDM_ERROR_NONE;
1181                 }
1182                 if (!strncmp(arg, "all", 3)) {
1183                         tdm_debug_module = 0xFFFFFFFF;
1184                         return TDM_ERROR_NONE;
1185                 }
1186                 if (!strncmp(arg, "buffer", 6))
1187                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1188                 else if (!strncmp(arg, "thread", 6))
1189                         tdm_debug_module |= TDM_DEBUG_THREAD;
1190                 else if (!strncmp(arg, "mutex", 5))
1191                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1192                 else if (!strncmp(arg, "vblank", 6))
1193                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1194                 else if (!strncmp(arg, "commit", 6))
1195                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1196
1197                 arg = strtok_r(NULL, TDM_DELIM, &end);
1198         }
1199
1200         TDM_INFO("module debugging... '%s'", modules);
1201
1202         return TDM_ERROR_NONE;
1203 }
1204
1205 INTERN tdm_error
1206 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1207 {
1208         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1209         char *path = NULL, *path2;
1210         char *arg;
1211         char *end;
1212
1213         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1214         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1215         if (!path2 || path2[0] == '\0')
1216                 path2 = TDM_DUMP_DIR;
1217         else
1218                 path2++;
1219
1220         tdm_debug_dump = 0;
1221
1222         snprintf(temp, sizeof(temp), "%s", dump_str);
1223         arg = strtok_r(temp, ",", &end);
1224         TDM_GOTO_IF_FAIL(arg != NULL, done);
1225
1226         if (!strncmp(arg, "none", 4)) {
1227                 tdm_debug_dump = 0;
1228                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1229                 if (tdm_debug_dump_dir) {
1230                         free(tdm_debug_dump_dir);
1231                         tdm_debug_dump_dir = NULL;
1232                 }
1233                 goto done;
1234         }
1235
1236         path = tdm_helper_dump_make_directory(path2, reply, len);
1237         TDM_GOTO_IF_FAIL(path != NULL, done);
1238
1239         if (!strncmp(arg, "current", 7)) {
1240                 tdm_private_output *o = NULL;
1241                 if (!private_display) {
1242                         TDM_WRN("no private_display");
1243                         goto done;
1244                 }
1245
1246                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1247                         tdm_private_layer *l = NULL;
1248                         LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1249                                 char str[TDM_PATH_LEN];
1250                                 if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1251                                         continue;
1252                                 if (!l->showing_buffer)
1253                                         continue;
1254                                 snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1255                                 tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1256                         }
1257                 }
1258
1259                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1260                 goto done;
1261         }
1262
1263         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1264
1265         while (arg) {
1266                 if (!strncmp(arg, "all", 3)) {
1267                         tdm_debug_dump = 0xFFFFFFFF;
1268                         goto done;
1269                 } else if (!strncmp(arg, "layer", 5)) {
1270                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1271                 } else if (!strncmp(arg, "pp", 2)) {
1272                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1273                 } else if (!strncmp(arg, "capture", 7)) {
1274                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1275                 } else if (!strncmp(arg, "window", 6)) {
1276                         tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
1277                 } else
1278                         goto done;
1279
1280                 arg = strtok_r(NULL, ",", &end);
1281         }
1282
1283         if (tdm_debug_dump_dir)
1284                 free(tdm_debug_dump_dir);
1285
1286         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1287
1288         TDM_INFO("dump... '%s'", dump_str);
1289
1290 done:
1291         if (path)
1292                 free(path);
1293
1294         return TDM_ERROR_NONE;
1295 }
1296
1297 INTERN tdm_error
1298 tdm_display_enable_path(const char *path)
1299 {
1300         static int old_stdout = -1;
1301         char fd_name[TDM_PATH_LEN];
1302         int  log_fd = -1;
1303         FILE *log_fl;
1304
1305         if (old_stdout == -1)
1306                 old_stdout = dup(STDOUT_FILENO);
1307
1308         tdm_log_enable_dlog(0);
1309
1310         snprintf(fd_name, TDM_PATH_LEN, "%s", path);
1311
1312         log_fl = fopen(fd_name, "a");
1313         if (!log_fl) {
1314                 TDM_ERR("failed: open file(%s)\n", fd_name);
1315                 return TDM_ERROR_OPERATION_FAILED;
1316         }
1317
1318         fflush(stderr);
1319         close(STDOUT_FILENO);
1320
1321         setvbuf(log_fl, NULL, _IOLBF, 512);
1322         log_fd = fileno(log_fl);
1323
1324         dup2(log_fd, STDOUT_FILENO);
1325         fclose(log_fl);
1326
1327         return TDM_ERROR_NONE;
1328 }
1329
1330 static void
1331 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1332                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1333 {
1334         tdm_error ret = TDM_ERROR_NONE;
1335
1336         TDM_TRACE_MARK("VSYNC");
1337
1338         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1339         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1340 }
1341
1342 INTERN tdm_error
1343 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1344 {
1345         tdm_private_display *private_display = dpy;
1346         tdm_private_output *private_output = NULL;
1347         const tdm_output_mode *mode = NULL;
1348         tdm_vblank *vblank = NULL;
1349         tdm_error ret = TDM_ERROR_NONE;
1350
1351         if (!enable) {
1352                 LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
1353                         if (private_output->ttrace_vblank)
1354                                 tdm_vblank_destroy(private_output->ttrace_vblank);
1355                         private_output->ttrace_vblank = NULL;
1356                 }
1357                 return TDM_ERROR_NONE;
1358         }
1359
1360         private_output = output;
1361         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1362
1363         if (private_output->ttrace_vblank)
1364                 return TDM_ERROR_NONE;
1365
1366         vblank = tdm_vblank_create(private_display, output, &ret);
1367         TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1368
1369         ret = tdm_output_get_mode(output, &mode);
1370         TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1371
1372         ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1373         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1374
1375         ret = tdm_vblank_set_enable_fake(vblank, 1);
1376         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1377
1378         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1379         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1380
1381         private_output->ttrace_vblank = vblank;
1382
1383         return TDM_ERROR_NONE;
1384
1385 enable_fail:
1386         if (vblank)
1387                 tdm_vblank_destroy(vblank);
1388
1389         return ret;
1390 }
1391
1392 INTERN tdm_error
1393 tdm_display_enable_ttrace(tdm_private_display *private_display, const char *ttrace, int output_id, char *reply, int *len)
1394 {
1395         char temp[TDM_PATH_LEN];
1396         char *arg;
1397         char *end;
1398         tdm_output *output;
1399         tdm_error ret;
1400         tdm_output_type type;
1401
1402         snprintf(temp, TDM_PATH_LEN, "%s", ttrace);
1403
1404         tdm_ttrace_output = output_id;
1405         tdm_ttrace_module = 0;
1406
1407         output = tdm_display_get_output(private_display, output_id, &ret);
1408         if (!output) {
1409                 TDM_SNPRINTF(reply, len, "can't find the output_id(%d)\n", output_id);
1410                 return ret;
1411         }
1412
1413         ret = tdm_output_get_output_type(output, &type);
1414         if (ret != TDM_ERROR_NONE) {
1415                 TDM_SNPRINTF(reply, len, "can't find the type of output_id(%d)\n", output_id);
1416                 return ret;
1417         }
1418
1419         arg = strtok_r(temp, TDM_DELIM, &end);
1420         while (arg) {
1421                 if (!strncmp(arg, "none", 4))
1422                         tdm_ttrace_module = 0;
1423                 else if (!strncmp(arg, "all", 3))
1424                         tdm_ttrace_module = 0xFFFFFFFF;
1425                 else if (!strncmp(arg, "vblank", 6))
1426                         tdm_ttrace_module |= TDM_TTRACE_VBLANK;
1427                 else if (!strncmp(arg, "client", 6))
1428                         tdm_ttrace_module |= TDM_TTRACE_CLIENT;
1429                 else if (!strncmp(arg, "layer", 5))
1430                         tdm_ttrace_module |= TDM_TTRACE_LAYER;
1431                 else if (!strncmp(arg, "pp", 2))
1432                         tdm_ttrace_module |= TDM_TTRACE_PP;
1433                 else if (!strncmp(arg, "capture", 7))
1434                         tdm_ttrace_module |= TDM_TTRACE_CAPTURE;
1435                 else  {
1436                         tdm_ttrace_module = 0;
1437                         tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1438                         tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1439                         TDM_SNPRINTF(reply, len, "unknown option: '%s'\n", arg);
1440                         return TDM_ERROR_NONE;
1441                 }
1442
1443                 arg = strtok_r(NULL, TDM_DELIM, &end);
1444         }
1445
1446         TDM_SNPRINTF(reply, len, "ttrace debugging... '%s' %x\n", ttrace, tdm_ttrace_module);
1447
1448         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1449                 tdm_display_enable_ttrace_vblank(private_display, output, 1);
1450         else
1451                 tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1452
1453         if (tdm_ttrace_module & TDM_TTRACE_CLIENT)
1454                 tdm_server_enable_ttrace_client_vblank(private_display, output, 1);
1455         else
1456                 tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1457
1458         return TDM_ERROR_NONE;
1459 }
1460
1461 INTERN tdm_error
1462 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1463 {
1464         private_display->print_fps = enable;
1465
1466         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1467
1468         return TDM_ERROR_NONE;
1469 }
1470 /* LCOV_EXCL_STOP */