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