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