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