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         TDM_RETURN_VAL_IF_FAIL(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER);
 666
 667         private_display = dpy;
 668         _pthread_mutex_lock(&private_display->lock);
 669
 670         ret = _tdm_display_update_internal(private_display, 1);
 671
 672         _pthread_mutex_unlock(&private_display->lock);
 673
 674         return ret;
 675 }
 676
 677 #define SUFFIX_MODULE    ".so"
 678 #define TDM_DEFAULT_MODULE   "libtdm-default"SUFFIX_MODULE
 679 #define TDM_DUMMY_MODULE     "libtdm-dummy"SUFFIX_MODULE
 680
 681 int tdm_debug_module;
 682 int tdm_debug_dump;
 683 int tdm_ttrace_module;
 684 int tdm_ttrace_output;
 685
 686 static tdm_private_display *g_private_display;
 687 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 688
 689 /* LCOV_EXCL_START */
 690 static tdm_error
 691 _tdm_display_check_module(tdm_backend_module *module)
 692 {
 693         int major, minor;
 694
 695         TDM_INFO("TDM ABI version : %d.%d",
 696                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 697
 698         if (!module->name) {
 699                 TDM_ERR("TDM backend doesn't have name");
 700                 return TDM_ERROR_BAD_MODULE;
 701         }
 702
 703         if (!module->vendor) {
 704                 TDM_ERR("TDM backend doesn't have vendor");
 705                 return TDM_ERROR_BAD_MODULE;
 706         }
 707
 708         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 709         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 710
 711         TDM_INFO("TDM module name: %s", module->name);
 712         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 713         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 714
 715         if (major != TDM_MAJOR_VERSION) {
 716                 TDM_ERR("'%s' major version mismatch, %d != %d",
 717                                 module->name, major, TDM_MAJOR_VERSION);
 718                 return TDM_ERROR_BAD_MODULE;
 719         }
 720
 721         if (minor > TDM_MINOR_VERSION) {
 722                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 723                                 module->name, minor, TDM_MINOR_VERSION);
 724                 return TDM_ERROR_BAD_MODULE;
 725         }
 726
 727         if (!module->init) {
 728                 TDM_ERR("'%s' doesn't have init function", module->name);
 729                 return TDM_ERROR_BAD_MODULE;
 730         }
 731
 732         if (!module->deinit) {
 733                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 734                 return TDM_ERROR_BAD_MODULE;
 735         }
 736
 737         return TDM_ERROR_NONE;
 738 }
 739
 740 static tdm_error
 741 _tdm_display_check_backend_functions(tdm_private_display *private_display)
 742 {
 743         tdm_func_display *func_display = &private_display->func_display;
 744         tdm_func_output *func_output = &private_display->func_output;
 745         tdm_func_layer *func_layer = &private_display->func_layer;
 746         tdm_error ret;
 747
 748         /* below functions should be implemented in backend side */
 749
 750         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 751         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 752         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 753         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 754         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 755
 756         ret = func_display->display_get_capability(private_display->bdata, &private_display->caps_display);
 757         if (ret != TDM_ERROR_NONE) {
 758                 TDM_ERR("display_get_capability() failed");
 759                 return TDM_ERROR_BAD_MODULE;
 760         }
 761
 762         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 763                 tdm_func_pp *func_pp = &private_display->func_pp;
 764                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 765                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 766                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 767                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 768                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 769         }
 770
 771         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 772                 tdm_func_capture *func_capture = &private_display->func_capture;
 773                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 774                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 775                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 776                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 777                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 778                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 779                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 780                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 781         }
 782
 783         return TDM_ERROR_NONE;
 784 }
 785
 786 static tdm_error
 787 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 788                                                                    const char *file)
 789 {
 790         char path[PATH_MAX] = {0,};
 791         tdm_backend_module *module_data;
 792         void *module;
 793         tdm_error ret;
 794         double stamp;
 795         int size;
 796
 797         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 798         if (size >= (int)sizeof(path)) {
 799                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 800                 return TDM_ERROR_BAD_MODULE;
 801         };
 802
 803         stamp = tdm_helper_get_time();
 804
 805         TDM_TRACE_BEGIN("TDM_Load_Backend");
 806         module = dlopen(path, RTLD_LAZY);
 807         if (!module) {
 808                 TDM_ERR("failed to load module: %s(%s)", dlerror(), file);
 809                 TDM_TRACE_END();
 810                 return TDM_ERROR_BAD_MODULE;
 811         }
 812
 813         module_data = dlsym(module, "tdm_backend_module_data");
 814         if (!module_data) {
 815                 TDM_ERR("'%s' doesn't have data object", file);
 816                 ret = TDM_ERROR_BAD_MODULE;
 817                 TDM_TRACE_END();
 818                 goto failed_load;
 819         }
 820         TDM_TRACE_END();
 821
 822         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 823
 824         private_display->module_data = module_data;
 825         private_display->module = module;
 826
 827         /* check if version, init() and deinit() are valid or not */
 828         ret = _tdm_display_check_module(module_data);
 829         if (ret != TDM_ERROR_NONE)
 830                 goto failed_load;
 831
 832         /* We don't care if backend_data is NULL or not. It's up to backend. */
 833         TDM_TRACE_BEGIN("TDM_Init_Backend");
 834         stamp = tdm_helper_get_time();
 835         private_display->bdata = module_data->init((tdm_display *)private_display, &ret);
 836         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 837         TDM_TRACE_END();
 838
 839         if (ret != TDM_ERROR_NONE) {
 840                 TDM_ERR("failed to init '%s' module", module_data->name);
 841                 goto failed_load;
 842         }
 843
 844         ret = _tdm_display_check_backend_functions(private_display);
 845         if (ret != TDM_ERROR_NONE) {
 846                 module_data->deinit(private_display->bdata);
 847                 private_display->bdata = NULL;
 848                 goto failed_load;
 849         }
 850
 851         TDM_INFO("Success to load '%s' module", module_data->name);
 852
 853         return TDM_ERROR_NONE;
 854 failed_load:
 855         dlclose(module);
 856         private_display->module_data = NULL;
 857         private_display->module = NULL;
 858         return ret;
 859 }
 860
 861 static tdm_error
 862 _tdm_display_load_module(tdm_private_display *private_display)
 863 {
 864         const char *module_name;
 865         struct dirent **namelist;
 866         int n, len;
 867         tdm_error ret = 0;
 868
 869         module_name = getenv("TDM_MODULE");
 870         if (!module_name)
 871                 module_name = TDM_DEFAULT_MODULE;
 872
 873         len = strlen(module_name);
 874         if (len > TDM_NAME_LEN - 1) {
 875                 TDM_ERR("TDM_MODULE is too long\n");
 876                 return TDM_ERROR_OPERATION_FAILED;
 877         }
 878
 879         /* load bufmgr priv from default lib */
 880         ret = _tdm_display_load_module_with_file(private_display, module_name);
 881         if (ret == TDM_ERROR_NONE)
 882                 return TDM_ERROR_NONE;
 883
 884         /* load bufmgr priv from dummy lib */
 885         ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 886         if (ret == TDM_ERROR_NONE)
 887                 return TDM_ERROR_NONE;
 888
 889         /* load bufmgr priv from configured path */
 890         n = scandir(TDM_MODULE_PATH, &namelist, 0, alphasort);
 891         if (n < 0) {
 892                 TDM_ERR("no module in '%s'\n", TDM_MODULE_PATH);
 893                 return TDM_ERROR_BAD_MODULE;
 894         }
 895
 896         ret = TDM_ERROR_BAD_MODULE;
 897         while (n--) {
 898                 if (ret < 0 && strstr(namelist[n]->d_name, SUFFIX_MODULE))
 899                         ret = _tdm_display_load_module_with_file(private_display, namelist[n]->d_name);
 900
 901                 free(namelist[n]);
 902         }
 903         free(namelist);
 904
 905         return ret;
 906 }
 907
 908 static void
 909 _tdm_display_unload_module(tdm_private_display *private_display)
 910 {
 911         if (private_display->module_data)
 912                 private_display->module_data->deinit(private_display->bdata);
 913         if (private_display->module)
 914                 dlclose(private_display->module);
 915
 916         private_display->bdata = NULL;
 917         private_display->module_data = NULL;
 918         private_display->module = NULL;
 919 }
 920 /* LCOV_EXCL_STOP */
 921
 922 EXTERN tdm_display *
 923 tdm_display_init(tdm_error *error)
 924 {
 925         tdm_private_display *private_display = NULL;
 926         const char *str;
 927         tdm_error ret;
 928         double stamp1, stamp2, start;
 929
 930         pthread_mutex_lock(&gLock);
 931
 932         if (g_private_display) {
 933                 g_private_display->init_count++;
 934                 pthread_mutex_unlock(&gLock);
 935                 if (error)
 936                         *error = TDM_ERROR_NONE;
 937                 return g_private_display;
 938         }
 939
 940         start = stamp1 = tdm_helper_get_time();
 941
 942         private_display = calloc(1, sizeof(tdm_private_display));
 943         if (!private_display) {
 944                 /* LCOV_EXCL_START */
 945                 ret = TDM_ERROR_OUT_OF_MEMORY;
 946                 TDM_ERR("'private_display != NULL' failed");
 947                 goto failed_alloc;
 948                 /* LCOV_EXCL_STOP */
 949         }
 950
 951         str = getenv("TDM_DEBUG_MODULE");
 952         if (str)
 953                 tdm_display_enable_debug_module(str);
 954
 955         str = getenv("TDM_DEBUG_DUMP");
 956         if (str)
 957                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 958
 959         str = getenv("TDM_DEBUG_PATH");
 960         if (str)
 961                 tdm_display_enable_path(str);
 962
 963         if (pthread_mutex_init(&private_display->lock, NULL)) {
 964                 /* LCOV_EXCL_START */
 965                 ret = TDM_ERROR_OPERATION_FAILED;
 966                 TDM_ERR("mutex init failed: %m");
 967                 goto failed_mutex_init;
 968                 /* LCOV_EXCL_STOP */
 969         }
 970
 971         _pthread_mutex_lock(&private_display->lock);
 972
 973         stamp2 = tdm_helper_get_time();
 974         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 975         stamp1 = stamp2;
 976
 977         ret = tdm_event_loop_init(private_display);
 978         if (ret != TDM_ERROR_NONE)
 979                 goto failed_event;
 980
 981         stamp2 = tdm_helper_get_time();
 982         TDM_DBG("creating event loop time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 983         stamp1 = stamp2;
 984
 985         ret = _tdm_display_load_module(private_display);
 986         if (ret != TDM_ERROR_NONE)
 987                 goto failed_load;
 988
 989         stamp2 = tdm_helper_get_time();
 990         TDM_DBG("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 991         stamp1 = stamp2;
 992
 993 #ifdef INIT_BUFMGR
 994         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
 995         if (tdm_drm_fd >= 0) {
 996                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
 997                 close(tdm_drm_fd);
 998                 if (!private_display->bufmgr) {
 999                         TDM_ERR("tbm_bufmgr_init failed");
1000                         goto failed_update;
1001                 } else {
1002                         TDM_INFO("tbm_bufmgr_init successed");
1003                 }
1004
1005                 stamp2 = tdm_helper_get_time();
1006                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1007                 stamp1 = stamp2;
1008         }
1009 #endif
1010
1011         TDM_TRACE_BEGIN("TDM_Update_Display");
1012         ret = _tdm_display_update_internal(private_display, 0);
1013         TDM_TRACE_END();
1014         if (ret != TDM_ERROR_NONE)
1015                 goto failed_update;
1016
1017         stamp2 = tdm_helper_get_time();
1018         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1019         stamp1 = stamp2;
1020
1021         tdm_event_loop_create_backend_source(private_display);
1022
1023         private_display->init_count = 1;
1024         g_private_display = private_display;
1025
1026         tdm_private_output *o = NULL;
1027         LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1028                 if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1029                         tdm_output_need_validate_event_init(o);
1030         }
1031
1032         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1033          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1034          * this functionality can be turned off which means a default mode */
1035         str = getenv("TDM_COMMIT_PER_VBLANK");
1036         if (str) {
1037                 tdm_private_output *o = NULL;
1038                 char *end;
1039                 int mode = strtol(str, &end, 10);
1040
1041                 /* outputs which support hwc capability can work only
1042                  * if commit_per_vblank mode is '0' (default mode) */
1043                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link)
1044                         if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1045                                 tdm_output_choose_commit_per_vblank_mode(o, mode);
1046         }
1047
1048         if (error)
1049                 *error = TDM_ERROR_NONE;
1050
1051         _pthread_mutex_unlock(&private_display->lock);
1052         pthread_mutex_unlock(&gLock);
1053
1054         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1055
1056         return (tdm_display *)private_display;
1057
1058 /* LCOV_EXCL_START */
1059 failed_update:
1060         _tdm_display_unload_module(private_display);
1061 failed_load:
1062         tdm_event_loop_stop(private_display);
1063         tdm_event_loop_deinit(private_display);
1064 failed_event:
1065         _pthread_mutex_unlock(&private_display->lock);
1066         pthread_mutex_destroy(&private_display->lock);
1067 failed_mutex_init:
1068         free(private_display);
1069 failed_alloc:
1070         if (error)
1071                 *error = ret;
1072         pthread_mutex_unlock(&gLock);
1073         return NULL;
1074 /* LCOV_EXCL_STOP */
1075 }
1076
1077 EXTERN void
1078 tdm_display_deinit(tdm_display *dpy)
1079 {
1080         tdm_private_display *private_display = dpy;
1081
1082         if (!private_display)
1083                 return;
1084
1085         TDM_RETURN_IF_FAIL(tdm_display_is_valid(dpy));
1086
1087         pthread_mutex_lock(&gLock);
1088
1089         private_display->init_count--;
1090         if (private_display->init_count > 0) {
1091                 pthread_mutex_unlock(&gLock);
1092                 return;
1093         }
1094
1095         /* dont move the position of lock/unlock. all resource should be protected
1096          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1097          * things because it's finalized.
1098          */
1099         _pthread_mutex_lock(&private_display->lock);
1100         tdm_event_loop_stop(private_display);
1101         _tdm_display_destroy_private_display(private_display);
1102         _tdm_display_unload_module(private_display);
1103         _pthread_mutex_unlock(&private_display->lock);
1104
1105         tdm_event_loop_deinit(private_display);
1106
1107 #ifdef INIT_BUFMGR
1108         if (private_display->bufmgr)
1109                 tbm_bufmgr_deinit(private_display->bufmgr);
1110 #endif
1111
1112         tbm_drm_helper_unset_tbm_master_fd();
1113
1114         pthread_mutex_destroy(&private_display->lock);
1115         free(private_display);
1116         g_private_display = NULL;
1117
1118         if (tdm_debug_dump_dir) {
1119                 free(tdm_debug_dump_dir);
1120                 tdm_debug_dump_dir = NULL;
1121         }
1122
1123         pthread_mutex_unlock(&gLock);
1124
1125         TDM_INFO("done");
1126 }
1127
1128 INTERN int
1129 tdm_display_is_valid(tdm_display *dpy)
1130 {
1131         if (dpy != NULL && dpy == g_private_display)
1132                 return 1;
1133         return 0;
1134 }
1135
1136 INTERN int
1137 tdm_output_is_valid(tdm_output *output)
1138 {
1139         tdm_private_output *o = NULL, *private_output = output;
1140         if (output && g_private_display)
1141                 LIST_FOR_EACH_ENTRY(o, &g_private_display->output_list, link)
1142                         if (o == private_output)
1143                                 return 1;
1144         return 0;
1145 }
1146
1147 /* LCOV_EXCL_START */
1148 INTERN int
1149 tdm_display_check_module_abi(tdm_private_display *private_display, int abimaj, int abimin)
1150 {
1151         tdm_backend_module *module = private_display->module_data;
1152
1153         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1154                 return 0;
1155
1156         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1157                 return 0;
1158
1159         return 1;
1160 }
1161
1162 INTERN tdm_error
1163 tdm_display_enable_debug_module(const char*modules)
1164 {
1165         char temp[TDM_PATH_LEN];
1166         char *arg;
1167         char *end;
1168
1169         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1170
1171         tdm_debug_module = 0;
1172
1173         arg = strtok_r(temp, TDM_DELIM, &end);
1174         while (arg) {
1175                 if (!strncmp(arg, "none", 4)) {
1176                         tdm_debug_module = 0;
1177                         return TDM_ERROR_NONE;
1178                 }
1179                 if (!strncmp(arg, "all", 3)) {
1180                         tdm_debug_module = 0xFFFFFFFF;
1181                         return TDM_ERROR_NONE;
1182                 }
1183                 if (!strncmp(arg, "buffer", 6))
1184                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1185                 else if (!strncmp(arg, "thread", 6))
1186                         tdm_debug_module |= TDM_DEBUG_THREAD;
1187                 else if (!strncmp(arg, "mutex", 5))
1188                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1189                 else if (!strncmp(arg, "vblank", 6))
1190                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1191                 else if (!strncmp(arg, "commit", 6))
1192                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1193
1194                 arg = strtok_r(NULL, TDM_DELIM, &end);
1195         }
1196
1197         TDM_INFO("module debugging... '%s'", modules);
1198
1199         return TDM_ERROR_NONE;
1200 }
1201
1202 INTERN tdm_error
1203 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1204 {
1205         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1206         char *path = NULL, *path2;
1207         char *arg;
1208         char *end;
1209
1210         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1211         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1212         if (!path2 || path2[0] == '\0')
1213                 path2 = TDM_DUMP_DIR;
1214         else
1215                 path2++;
1216
1217         tdm_debug_dump = 0;
1218
1219         snprintf(temp, sizeof(temp), "%s", dump_str);
1220         arg = strtok_r(temp, ",", &end);
1221         TDM_GOTO_IF_FAIL(arg != NULL, done);
1222
1223         if (!strncmp(arg, "none", 4)) {
1224                 tdm_debug_dump = 0;
1225                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1226                 if (tdm_debug_dump_dir) {
1227                         free(tdm_debug_dump_dir);
1228                         tdm_debug_dump_dir = NULL;
1229                 }
1230                 goto done;
1231         }
1232
1233         path = tdm_helper_dump_make_directory(path2, reply, len);
1234         TDM_GOTO_IF_FAIL(path != NULL, done);
1235
1236         if (!strncmp(arg, "current", 7)) {
1237                 tdm_private_output *o = NULL;
1238                 if (!private_display) {
1239                         TDM_WRN("no private_display");
1240                         goto done;
1241                 }
1242
1243                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1244                         tdm_private_layer *l = NULL;
1245                         LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1246                                 char str[TDM_PATH_LEN];
1247                                 if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1248                                         continue;
1249                                 if (!l->showing_buffer)
1250                                         continue;
1251                                 snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1252                                 tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1253                         }
1254                 }
1255
1256                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1257                 goto done;
1258         }
1259
1260         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1261
1262         while (arg) {
1263                 if (!strncmp(arg, "all", 3)) {
1264                         tdm_debug_dump = 0xFFFFFFFF;
1265                         goto done;
1266                 } else if (!strncmp(arg, "layer", 5)) {
1267                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1268                 } else if (!strncmp(arg, "pp", 2)) {
1269                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1270                 } else if (!strncmp(arg, "capture", 7)) {
1271                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1272                 } else if (!strncmp(arg, "window", 6)) {
1273                         tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
1274                 } else
1275                         goto done;
1276
1277                 arg = strtok_r(NULL, ",", &end);
1278         }
1279
1280         if (tdm_debug_dump_dir)
1281                 free(tdm_debug_dump_dir);
1282
1283         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1284
1285         TDM_INFO("dump... '%s'", dump_str);
1286
1287 done:
1288         if (path)
1289                 free(path);
1290
1291         return TDM_ERROR_NONE;
1292 }
1293
1294 INTERN tdm_error
1295 tdm_display_enable_path(const char *path)
1296 {
1297         static int old_stdout = -1;
1298         char fd_name[TDM_PATH_LEN];
1299         int  log_fd = -1;
1300         FILE *log_fl;
1301
1302         if (old_stdout == -1)
1303                 old_stdout = dup(STDOUT_FILENO);
1304
1305         tdm_log_enable_dlog(0);
1306
1307         snprintf(fd_name, TDM_PATH_LEN, "%s", path);
1308
1309         log_fl = fopen(fd_name, "a");
1310         if (!log_fl) {
1311                 TDM_ERR("failed: open file(%s)\n", fd_name);
1312                 return TDM_ERROR_OPERATION_FAILED;
1313         }
1314
1315         fflush(stderr);
1316         close(STDOUT_FILENO);
1317
1318         setvbuf(log_fl, NULL, _IOLBF, 512);
1319         log_fd = fileno(log_fl);
1320
1321         dup2(log_fd, STDOUT_FILENO);
1322         fclose(log_fl);
1323
1324         return TDM_ERROR_NONE;
1325 }
1326
1327 static void
1328 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1329                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1330 {
1331         tdm_error ret = TDM_ERROR_NONE;
1332
1333         TDM_TRACE_MARK("VSYNC");
1334
1335         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1336         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1337 }
1338
1339 INTERN tdm_error
1340 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1341 {
1342         tdm_private_display *private_display = dpy;
1343         tdm_private_output *private_output = NULL;
1344         const tdm_output_mode *mode = NULL;
1345         tdm_vblank *vblank = NULL;
1346         tdm_error ret = TDM_ERROR_NONE;
1347
1348         if (!enable) {
1349                 LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
1350                         if (private_output->ttrace_vblank)
1351                                 tdm_vblank_destroy(private_output->ttrace_vblank);
1352                         private_output->ttrace_vblank = NULL;
1353                 }
1354                 return TDM_ERROR_NONE;
1355         }
1356
1357         private_output = output;
1358         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1359
1360         if (private_output->ttrace_vblank)
1361                 return TDM_ERROR_NONE;
1362
1363         vblank = tdm_vblank_create(private_display, output, &ret);
1364         TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1365
1366         ret = tdm_output_get_mode(output, &mode);
1367         TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1368
1369         ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1370         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1371
1372         ret = tdm_vblank_set_enable_fake(vblank, 1);
1373         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1374
1375         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1376         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1377
1378         private_output->ttrace_vblank = vblank;
1379
1380         return TDM_ERROR_NONE;
1381
1382 enable_fail:
1383         if (vblank)
1384                 tdm_vblank_destroy(vblank);
1385
1386         return ret;
1387 }
1388
1389 INTERN tdm_error
1390 tdm_display_enable_ttrace(tdm_private_display *private_display, const char *ttrace, int output_id, char *reply, int *len)
1391 {
1392         char temp[TDM_PATH_LEN];
1393         char *arg;
1394         char *end;
1395         tdm_output *output;
1396         tdm_error ret;
1397         tdm_output_type type;
1398
1399         snprintf(temp, TDM_PATH_LEN, "%s", ttrace);
1400
1401         tdm_ttrace_output = output_id;
1402         tdm_ttrace_module = 0;
1403
1404         output = tdm_display_get_output(private_display, output_id, &ret);
1405         if (!output) {
1406                 TDM_SNPRINTF(reply, len, "can't find the output_id(%d)\n", output_id);
1407                 return ret;
1408         }
1409
1410         ret = tdm_output_get_output_type(output, &type);
1411         if (ret != TDM_ERROR_NONE) {
1412                 TDM_SNPRINTF(reply, len, "can't find the type of output_id(%d)\n", output_id);
1413                 return ret;
1414         }
1415
1416         arg = strtok_r(temp, TDM_DELIM, &end);
1417         while (arg) {
1418                 if (!strncmp(arg, "none", 4))
1419                         tdm_ttrace_module = 0;
1420                 else if (!strncmp(arg, "all", 3))
1421                         tdm_ttrace_module = 0xFFFFFFFF;
1422                 else if (!strncmp(arg, "vblank", 6))
1423                         tdm_ttrace_module |= TDM_TTRACE_VBLANK;
1424                 else if (!strncmp(arg, "client", 6))
1425                         tdm_ttrace_module |= TDM_TTRACE_CLIENT;
1426                 else if (!strncmp(arg, "layer", 5))
1427                         tdm_ttrace_module |= TDM_TTRACE_LAYER;
1428                 else if (!strncmp(arg, "pp", 2))
1429                         tdm_ttrace_module |= TDM_TTRACE_PP;
1430                 else if (!strncmp(arg, "capture", 7))
1431                         tdm_ttrace_module |= TDM_TTRACE_CAPTURE;
1432                 else  {
1433                         tdm_ttrace_module = 0;
1434                         tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1435                         tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1436                         TDM_SNPRINTF(reply, len, "unknown option: '%s'\n", arg);
1437                         return TDM_ERROR_NONE;
1438                 }
1439
1440                 arg = strtok_r(NULL, TDM_DELIM, &end);
1441         }
1442
1443         TDM_SNPRINTF(reply, len, "ttrace debugging... '%s' %x\n", ttrace, tdm_ttrace_module);
1444
1445         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1446                 tdm_display_enable_ttrace_vblank(private_display, output, 1);
1447         else
1448                 tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1449
1450         if (tdm_ttrace_module & TDM_TTRACE_CLIENT)
1451                 tdm_server_enable_ttrace_client_vblank(private_display, output, 1);
1452         else
1453                 tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1454
1455         return TDM_ERROR_NONE;
1456 }
1457
1458 INTERN tdm_error
1459 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1460 {
1461         private_display->print_fps = enable;
1462
1463         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1464
1465         return TDM_ERROR_NONE;
1466 }
1467 /* LCOV_EXCL_STOP */