src/tdm.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <sc1.lim@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm.h"
  41 #include "tdm_backend.h"
  42 #include "tdm_private.h"
  43 #include "tdm_helper.h"
  44 #include <tbm_drm_helper.h>
  45
  46 pthread_mutex_t tdm_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  47 int tdm_mutex_locked;
  48 const char *tdm_mutex_lock_func;
  49 int tdm_mutex_lock_line;
  50 const char *tdm_mutex_unlock_func;
  51 int tdm_mutex_unlock_line;
  52
  53 static tdm_private_layer *
  54 _tdm_display_find_private_layer(tdm_private_output *private_output,
  55                                                                 tdm_layer *layer_backend)
  56 {
  57         tdm_private_layer *private_layer = NULL;
  58
  59         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  60                 if (private_layer->layer_backend == layer_backend)
  61                         return private_layer;
  62         }
  63
  64         return NULL;
  65 }
  66
  67 static tdm_private_output *
  68 _tdm_display_find_private_output(tdm_private_display *private_display,
  69                                                                  tdm_output *output_backend)
  70 {
  71         tdm_private_output *private_output = NULL;
  72
  73         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
  74                 if (private_output->output_backend == output_backend)
  75                         return private_output;
  76         }
  77
  78         return NULL;
  79 }
  80
  81 INTERN tdm_private_output *
  82 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
  83 {
  84         tdm_private_output *private_output = NULL;
  85
  86         LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
  87                 if (private_output->stamp == stamp)
  88                         return private_output;
  89         }
  90
  91         return NULL;
  92 }
  93
  94 static void
  95 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
  96 {
  97         if (caps_pp->formats)
  98                 free(caps_pp->formats);
  99
 100         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 101 }
 102
 103 static void
 104 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 105 {
 106         if (caps_capture->formats)
 107                 free(caps_capture->formats);
 108
 109         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 110 }
 111
 112 static void
 113 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 114 {
 115         if (caps_layer->formats)
 116                 free(caps_layer->formats);
 117
 118         if (caps_layer->props)
 119                 free(caps_layer->props);
 120
 121         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 122 }
 123
 124 static void
 125 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 126 {
 127         if (caps_output->modes)
 128                 free(caps_output->modes);
 129
 130         if (caps_output->props)
 131                 free(caps_output->props);
 132
 133         memset(caps_output, 0, sizeof(tdm_caps_output));
 134 }
 135
 136 static void
 137 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 138 {
 139         tdm_private_capture *c = NULL, *cc = NULL;
 140
 141         LIST_DEL(&private_layer->link);
 142
 143         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 144         tdm_capture_destroy_internal(c);
 145
 146         _tdm_display_destroy_caps_layer(&private_layer->caps);
 147
 148         free(private_layer);
 149 }
 150
 151 static void
 152 _tdm_display_destroy_private_output(tdm_private_output *private_output)
 153 {
 154         tdm_private_display *private_display = private_output->private_display;
 155         tdm_private_layer *l = NULL, *ll = NULL;
 156         tdm_private_hwc_window *hw = NULL, *hww = NULL;
 157         tdm_private_capture *c = NULL, *cc = NULL;
 158         tdm_private_vblank_handler *v = NULL, *vv = NULL;
 159         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 160         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 161         tdm_private_change_handler *h = NULL, *hh = NULL;
 162
 163         LIST_DEL(&private_output->link);
 164
 165         free(private_output->layers_ptr);
 166
 167         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 168                 LIST_DEL(&v->link);
 169                 free(v);
 170         }
 171
 172         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 173                 LIST_DEL(&om->link);
 174                 free(om);
 175         }
 176
 177         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 178                 LIST_DEL(&lm->link);
 179                 free(lm);
 180         }
 181
 182         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 183                 LIST_DEL(&lm->link);
 184                 free(lm);
 185         }
 186
 187         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_main, link) {
 188                 LIST_DEL(&h->link);
 189                 free(h);
 190         }
 191
 192         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list_sub, link) {
 193                 LIST_DEL(&h->link);
 194                 free(h);
 195         }
 196
 197         if (private_output->vblank) {
 198                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 199                 _pthread_mutex_unlock(&private_display->lock);
 200                 tdm_vblank_destroy(private_output->vblank);
 201                 _pthread_mutex_lock(&private_display->lock);
 202         }
 203
 204         if (private_output->ttrace_vblank) {
 205                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 206                 _pthread_mutex_unlock(&private_display->lock);
 207                 tdm_vblank_destroy(private_output->ttrace_vblank);
 208                 _pthread_mutex_lock(&private_display->lock);
 209         }
 210
 211         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 212         tdm_capture_destroy_internal(c);
 213
 214         LIST_FOR_EACH_ENTRY_SAFE(hw, hww, &private_output->hwc_window_list, link)
 215         tdm_hwc_window_destroy_internal(hw);
 216
 217         LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 218         _tdm_display_destroy_private_layer(l);
 219
 220         _tdm_display_destroy_caps_output(&private_output->caps);
 221
 222         if (private_output->dpms_changed_timer)
 223                 tdm_event_loop_source_remove(private_output->dpms_changed_timer);
 224
 225         private_output->stamp = 0;
 226         free(private_output);
 227 }
 228
 229 static void
 230 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 231 {
 232         tdm_private_output *o = NULL, *oo = NULL;
 233         tdm_private_pp *p = NULL, *pp = NULL;
 234
 235         free(private_display->outputs_ptr);
 236         if (private_display->outputs) {
 237                 free(private_display->outputs);
 238                 private_display->outputs = NULL;
 239         }
 240
 241         LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_display->pp_list, link)
 242         tdm_pp_destroy_internal(p);
 243
 244         LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_display->output_list, link)
 245         _tdm_display_destroy_private_output(o);
 246
 247         _tdm_display_destroy_caps_pp(&private_display->caps_pp);
 248         _tdm_display_destroy_caps_capture(&private_display->caps_capture);
 249
 250         private_display->capabilities = 0;
 251         private_display->caps_display.max_layer_count = 0;
 252 }
 253
 254 static tdm_error
 255 _tdm_display_update_caps_pp(tdm_private_display *private_display,
 256                                                         tdm_caps_pp *caps)
 257 {
 258         tdm_func_display *func_display = &private_display->func_display;
 259         tdm_error ret;
 260
 261         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP))
 262                 return TDM_ERROR_NONE;
 263
 264         if (!func_display->display_get_pp_capability) {
 265                 TDM_ERR("no display_get_pp_capability()");
 266                 return TDM_ERROR_BAD_MODULE;
 267         }
 268
 269         ret = func_display->display_get_pp_capability(private_display->bdata, caps);
 270         if (ret != TDM_ERROR_NONE) {
 271                 TDM_ERR("display_get_pp_capability() failed");
 272                 return TDM_ERROR_BAD_MODULE;
 273         }
 274
 275         return TDM_ERROR_NONE;
 276 }
 277
 278 static tdm_error
 279 _tdm_display_update_caps_capture(tdm_private_display *private_display,
 280                                                                  tdm_caps_capture *caps)
 281 {
 282         tdm_func_display *func_display = &private_display->func_display;
 283         tdm_error ret;
 284
 285         if (!(private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE))
 286                 return TDM_ERROR_NONE;
 287
 288         if (!func_display->display_get_capture_capability) {
 289                 TDM_ERR("no display_get_capture_capability()");
 290                 return TDM_ERROR_BAD_MODULE;
 291         }
 292
 293         ret = func_display->display_get_capture_capability(private_display->bdata, caps);
 294         if (ret != TDM_ERROR_NONE) {
 295                 TDM_ERR("display_get_capture_capability() failed");
 296                 return TDM_ERROR_BAD_MODULE;
 297         }
 298
 299         return TDM_ERROR_NONE;
 300 }
 301
 302 static tdm_error
 303 _tdm_display_update_caps_layer(tdm_private_display *private_display,
 304                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 305 {
 306         tdm_func_layer *func_layer = &private_display->func_layer;
 307         tdm_error ret;
 308
 309         if (!func_layer->layer_get_capability) {
 310                 TDM_ERR("no layer_get_capability()");
 311                 return TDM_ERROR_BAD_MODULE;
 312         }
 313
 314         ret = func_layer->layer_get_capability(layer_backend, caps);
 315         if (ret != TDM_ERROR_NONE) {
 316                 TDM_ERR("layer_get_capability() failed");
 317                 return TDM_ERROR_BAD_MODULE;
 318         }
 319
 320         return TDM_ERROR_NONE;
 321 }
 322
 323 static tdm_error
 324 _tdm_display_update_caps_output(tdm_private_display *private_display, int pipe,
 325                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 326 {
 327         tdm_func_output *func_output = &private_display->func_output;
 328         char temp[TDM_NAME_LEN];
 329         tdm_error ret;
 330         double stamp;
 331
 332         if (!func_output->output_get_capability) {
 333                 TDM_ERR("no output_get_capability()");
 334                 return TDM_ERROR_BAD_MODULE;
 335         }
 336
 337         stamp = tdm_helper_get_time();
 338         ret = func_output->output_get_capability(output_backend, caps);
 339         TDM_DBG("backend output_get_capability() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 340
 341         if (ret != TDM_ERROR_NONE) {
 342                 TDM_ERR("output_get_capability() failed");
 343                 return TDM_ERROR_BAD_MODULE;
 344         }
 345
 346         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 347         snprintf(temp, TDM_NAME_LEN, "%s-%d", caps->model, pipe);
 348         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 349
 350         return TDM_ERROR_NONE;
 351 }
 352
 353 static tdm_error
 354 _tdm_display_update_layer(tdm_private_display *private_display,
 355                                                   tdm_private_output *private_output,
 356                                                   tdm_layer *layer_backend, int index)
 357 {
 358         tdm_private_layer *private_layer;
 359         tdm_error ret;
 360
 361         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 362         if (!private_layer) {
 363                 private_layer = calloc(1, sizeof(tdm_private_layer));
 364                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 365
 366                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 367                 private_layer->index = index;
 368                 private_layer->private_display = private_display;
 369                 private_layer->private_output = private_output;
 370                 private_layer->layer_backend = layer_backend;
 371
 372                 LIST_INITHEAD(&private_layer->capture_list);
 373
 374                 private_layer->usable = 1;
 375         } else
 376                 _tdm_display_destroy_caps_layer(&private_layer->caps);
 377
 378         ret = _tdm_display_update_caps_layer(private_display, layer_backend,
 379                                                                                  &private_layer->caps);
 380         if (ret != TDM_ERROR_NONE)
 381                 goto failed_update;
 382
 383         return TDM_ERROR_NONE;
 384 failed_update:
 385         _tdm_display_destroy_private_layer(private_layer);
 386         return ret;
 387 }
 388
 389 INTERN tdm_error
 390 tdm_display_update_output(tdm_private_display *private_display,
 391                                                   tdm_output *output_backend, int pipe)
 392 {
 393         tdm_func_output *func_output = &private_display->func_output;
 394         tdm_private_output *private_output = NULL;
 395         tdm_layer **layers = NULL;
 396         int layer_count = 0, i;
 397         tdm_error ret;
 398
 399         private_output = _tdm_display_find_private_output(private_display, output_backend);
 400         if (!private_output) {
 401                 private_output = calloc(1, sizeof(tdm_private_output));
 402                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 403
 404                 private_output->stamp = tdm_helper_get_time();
 405                 while (tdm_display_find_output_stamp(private_display, private_output->stamp))
 406                         private_output->stamp++;
 407
 408                 LIST_ADDTAIL(&private_output->link, &private_display->output_list);
 409
 410                 private_output->private_display = private_display;
 411                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 412                 private_output->output_backend = output_backend;
 413                 private_output->pipe = pipe;
 414                 private_output->index = pipe;
 415
 416                 LIST_INITHEAD(&private_output->layer_list);
 417                 LIST_INITHEAD(&private_output->hwc_window_list);
 418                 LIST_INITHEAD(&private_output->capture_list);
 419                 LIST_INITHEAD(&private_output->vblank_handler_list);
 420                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 421                 LIST_INITHEAD(&private_output->layer_commit_handler_list);
 422                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 423                 LIST_INITHEAD(&private_output->change_handler_list_main);
 424                 LIST_INITHEAD(&private_output->change_handler_list_sub);
 425
 426                 if (func_output->output_set_status_handler) {
 427                         func_output->output_set_status_handler(private_output->output_backend,
 428                                                                                                    tdm_output_cb_status,
 429                                                                                                    private_output);
 430                         private_output->regist_change_cb = 1;
 431                 }
 432
 433                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 434                                                                                           &private_output->caps);
 435                 if (ret != TDM_ERROR_NONE)
 436                         return ret;
 437         } else {
 438                 tdm_caps_output new_caps;
 439
 440                 ret = _tdm_display_update_caps_output(private_display, pipe, output_backend,
 441                                                                                           &new_caps);
 442                 if (ret != TDM_ERROR_NONE)
 443                         return ret;
 444
 445                 /* FIXME: This is very ugly. need to fix after the TDM ABI is changed. */
 446                 if (private_output->caps.status != new_caps.status) {
 447                         _tdm_display_destroy_caps_output(&private_output->caps);
 448                         private_output->caps = new_caps;
 449                         private_output->current_mode = NULL;
 450                 } else {
 451                         tdm_output_mode *old_modes = private_output->caps.modes;
 452                         unsigned int old_mode_count = private_output->caps.mode_count;
 453                         if (new_caps.modes)
 454                                 free(new_caps.modes);
 455                         new_caps.modes = old_modes;
 456                         new_caps.mode_count = old_mode_count;
 457                         if (private_output->caps.props)
 458                                 free(private_output->caps.props);
 459                         private_output->caps = new_caps;
 460                 }
 461         }
 462
 463         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 464         if (ret != TDM_ERROR_NONE)
 465                 goto failed_update;
 466
 467         for (i = 0; i < layer_count; i++) {
 468                 ret = _tdm_display_update_layer(private_display, private_output, layers[i], i);
 469                 if (ret != TDM_ERROR_NONE)
 470                         goto failed_update;
 471         }
 472
 473         free(layers);
 474
 475         return TDM_ERROR_NONE;
 476 failed_update:
 477         _tdm_display_destroy_private_output(private_output);
 478         free(layers);
 479         return ret;
 480 }
 481
 482 static tdm_output **
 483 _tdm_display_set_main_first(tdm_output **outputs, int index)
 484 {
 485         tdm_output *output_tmp = NULL;
 486
 487         if (index == 0)
 488                 return outputs;
 489
 490         output_tmp = outputs[0];
 491         outputs[0] = outputs[index];
 492         outputs[index] = output_tmp;
 493
 494         return outputs;
 495 }
 496
 497 static tdm_output **
 498 _tdm_display_get_ordered_outputs(tdm_private_display *private_display, int *count)
 499 {
 500         tdm_func_display *func_display = &private_display->func_display;
 501         tdm_output **outputs = NULL;
 502         tdm_output **new_outputs = NULL;
 503         tdm_output *output_dsi = NULL;
 504         tdm_output *output_lvds = NULL;
 505         tdm_output *output_hdmia = NULL;
 506         tdm_output *output_hdmib = NULL;
 507         int i, output_count = 0, output_connected_count = 0;
 508         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 509         tdm_error ret;
 510
 511         /* don't change list order if not init time */
 512         if (private_display->outputs)
 513                 return private_display->outputs;
 514
 515         outputs = func_display->display_get_outputs(private_display->bdata, &output_count, &ret);
 516         if (ret != TDM_ERROR_NONE)
 517                 goto failed_get_outputs;
 518
 519         *count = output_count;
 520
 521         if (output_count == 0)
 522                 goto failed_get_outputs;
 523         else if (output_count == 1) {
 524                 private_display->outputs = outputs;
 525                 return outputs;
 526         }
 527
 528         /* count connected outputs */
 529         for (i = 0; i < output_count; i++) {
 530                 tdm_func_output *func_output = &private_display->func_output;
 531                 tdm_caps_output caps;
 532                 memset(&caps, 0, sizeof(tdm_caps_output));
 533
 534                 if (!func_output->output_get_capability) {
 535                         TDM_ERR("no output_get_capability()");
 536                         goto failed_get_outputs;
 537                 }
 538
 539                 ret = func_output->output_get_capability(outputs[i], &caps);
 540                 if (ret != TDM_ERROR_NONE) {
 541                         TDM_ERR("output_get_capability() failed");
 542                         goto failed_get_outputs;
 543                 }
 544
 545                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 546                         output_connected_count++;
 547
 548                         switch (caps.type) {
 549                         case TDM_OUTPUT_TYPE_DSI:
 550                                 output_dsi = outputs[i];
 551                                 index_dsi = i;
 552                                 break;
 553                         case TDM_OUTPUT_TYPE_LVDS:
 554                                 output_lvds = outputs[i];
 555                                 index_lvds = i;
 556                                 break;
 557                         case TDM_OUTPUT_TYPE_HDMIA:
 558                                 output_hdmia = outputs[i];
 559                                 index_hdmia = i;
 560                                 break;
 561                         case TDM_OUTPUT_TYPE_HDMIB:
 562                                 output_hdmib = outputs[i];
 563                                 index_hdmib = i;
 564                                 break;
 565                         default:
 566                                 break;
 567                         }
 568                 }
 569
 570                 _tdm_display_destroy_caps_output(&caps);
 571         }
 572
 573         /* ordering : main output is first */
 574         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 575           * But hdmi is possible, so set hdmi to main display.
 576           * If connected only one output, it is main output.
 577           * If connected outputs over 2, has priority like below.
 578           * (dsi > lvds > hdmi > else)
 579           */
 580         if (output_connected_count == 0) {
 581                 /* hdmi > dsi > lvds > else */
 582                 if (output_hdmia != NULL)
 583                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 584                 else if (output_hdmib != NULL)
 585                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 586                 else 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
 591                         new_outputs = outputs;
 592         } else { /* (output_connected_count > 1) */
 593                 /* dsi > lvds > hdmi > else */
 594                 if (output_dsi != NULL)
 595                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 596                 else if (output_lvds != NULL)
 597                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 598                 else if (output_hdmia != NULL)
 599                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 600                 else if (output_hdmib != NULL)
 601                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 602                 else
 603                         new_outputs = outputs;
 604         }
 605
 606         private_display->outputs = new_outputs;
 607
 608         return new_outputs;
 609
 610 failed_get_outputs:
 611         free(outputs);
 612         *count = 0;
 613         return NULL;
 614 }
 615
 616 static tdm_error
 617 _tdm_display_update_internal(tdm_private_display *private_display,
 618                                                          int only_display)
 619 {
 620         tdm_output **outputs = NULL;
 621         int output_count = 0, i;
 622         tdm_error ret = TDM_ERROR_NONE;
 623
 624         LIST_INITHEAD(&private_display->output_list);
 625         LIST_INITHEAD(&private_display->pp_list);
 626         LIST_INITHEAD(&private_display->capture_list);
 627
 628         if (!only_display) {
 629                 ret = _tdm_display_update_caps_pp(private_display, &private_display->caps_pp);
 630                 if (ret != TDM_ERROR_NONE)
 631                         goto failed_update;
 632
 633                 ret = _tdm_display_update_caps_capture(private_display,
 634                                                                                            &private_display->caps_capture);
 635                 if (ret != TDM_ERROR_NONE)
 636                         goto failed_update;
 637         }
 638
 639         outputs = _tdm_display_get_ordered_outputs(private_display, &output_count);
 640         if (!outputs)
 641                 goto failed_update;
 642
 643         for (i = 0; i < output_count; i++) {
 644                 ret = tdm_display_update_output(private_display, outputs[i], i);
 645                 if (ret != TDM_ERROR_NONE)
 646                         goto failed_update;
 647         }
 648
 649         return TDM_ERROR_NONE;
 650
 651 failed_update:
 652         _tdm_display_destroy_private_display(private_display);
 653         return ret;
 654 }
 655
 656 EXTERN tdm_error
 657 tdm_display_update(tdm_display *dpy)
 658 {
 659         tdm_private_display *private_display;
 660         tdm_error ret;
 661
 662         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 663
 664         private_display = dpy;
 665         _pthread_mutex_lock(&private_display->lock);
 666
 667         ret = _tdm_display_update_internal(private_display, 1);
 668
 669         _pthread_mutex_unlock(&private_display->lock);
 670
 671         return ret;
 672 }
 673
 674 #define SUFFIX_MODULE    ".so"
 675 #define TDM_DEFAULT_MODULE   "libtdm-default"SUFFIX_MODULE
 676 #define TDM_DUMMY_MODULE     "libtdm-dummy"SUFFIX_MODULE
 677
 678 int tdm_debug_module;
 679 int tdm_debug_dump;
 680
 681 static tdm_private_display *g_private_display;
 682 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 683
 684 static tdm_error
 685 _tdm_display_check_module(tdm_backend_module *module)
 686 {
 687         int major, minor;
 688
 689         TDM_INFO("TDM ABI version : %d.%d",
 690                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 691
 692         if (!module->name) {
 693                 TDM_ERR("TDM backend doesn't have name");
 694                 return TDM_ERROR_BAD_MODULE;
 695         }
 696
 697         if (!module->vendor) {
 698                 TDM_ERR("TDM backend doesn't have vendor");
 699                 return TDM_ERROR_BAD_MODULE;
 700         }
 701
 702         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 703         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 704
 705         TDM_INFO("TDM module name: %s", module->name);
 706         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 707         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 708
 709         if (major != TDM_MAJOR_VERSION) {
 710                 TDM_ERR("'%s' major version mismatch, %d != %d",
 711                                 module->name, major, TDM_MAJOR_VERSION);
 712                 return TDM_ERROR_BAD_MODULE;
 713         }
 714
 715         if (minor > TDM_MINOR_VERSION) {
 716                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 717                                 module->name, minor, TDM_MINOR_VERSION);
 718                 return TDM_ERROR_BAD_MODULE;
 719         }
 720
 721         if (!module->init) {
 722                 TDM_ERR("'%s' doesn't have init function", module->name);
 723                 return TDM_ERROR_BAD_MODULE;
 724         }
 725
 726         if (!module->deinit) {
 727                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 728                 return TDM_ERROR_BAD_MODULE;
 729         }
 730
 731         return TDM_ERROR_NONE;
 732 }
 733
 734 static tdm_error
 735 _tdm_display_check_backend_functions(tdm_private_display *private_display)
 736 {
 737         tdm_func_display *func_display = &private_display->func_display;
 738         tdm_func_output *func_output = &private_display->func_output;
 739         tdm_func_layer *func_layer = &private_display->func_layer;
 740         tdm_error ret;
 741
 742         /* below functions should be implemented in backend side */
 743
 744         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 745         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 746         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 747         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 748         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 749
 750         ret = func_display->display_get_capability(private_display->bdata, &private_display->caps_display);
 751         if (ret != TDM_ERROR_NONE) {
 752                 TDM_ERR("display_get_capability() failed");
 753                 return TDM_ERROR_BAD_MODULE;
 754         }
 755
 756         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 757                 tdm_func_pp *func_pp = &private_display->func_pp;
 758                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 759                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 760                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 761                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 762                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 763         }
 764
 765         if (private_display->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 766                 tdm_func_capture *func_capture = &private_display->func_capture;
 767                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 768                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 769                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 770                 if (private_display->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 771                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 772                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 773                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 774                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 775         }
 776
 777         return TDM_ERROR_NONE;
 778 }
 779
 780 static tdm_error
 781 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 782                                                                    const char *file)
 783 {
 784         char path[PATH_MAX] = {0,};
 785         tdm_backend_module *module_data;
 786         void *module;
 787         tdm_error ret;
 788         double stamp;
 789         int size;
 790
 791         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 792         if (size >= (int)sizeof(path)) {
 793                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 794                 return TDM_ERROR_BAD_MODULE;
 795         };
 796
 797         stamp = tdm_helper_get_time();
 798
 799         TDM_TRACE_BEGIN("TDM_Load_Backend");
 800         module = dlopen(path, RTLD_LAZY);
 801         if (!module) {
 802                 TDM_ERR("failed to load module: %s(%s)", dlerror(), file);
 803                 TDM_TRACE_END();
 804                 return TDM_ERROR_BAD_MODULE;
 805         }
 806
 807         module_data = dlsym(module, "tdm_backend_module_data");
 808         if (!module_data) {
 809                 TDM_ERR("'%s' doesn't have data object", file);
 810                 ret = TDM_ERROR_BAD_MODULE;
 811                 TDM_TRACE_END();
 812                 goto failed_load;
 813         }
 814         TDM_TRACE_END();
 815
 816         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 817
 818         private_display->module_data = module_data;
 819         private_display->module = module;
 820
 821         /* check if version, init() and deinit() are valid or not */
 822         ret = _tdm_display_check_module(module_data);
 823         if (ret != TDM_ERROR_NONE)
 824                 goto failed_load;
 825
 826         /* We don't care if backend_data is NULL or not. It's up to backend. */
 827         TDM_TRACE_BEGIN("TDM_Init_Backend");
 828         stamp = tdm_helper_get_time();
 829         private_display->bdata = module_data->init((tdm_display *)private_display, &ret);
 830         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 831         TDM_TRACE_END();
 832
 833         if (ret != TDM_ERROR_NONE) {
 834                 TDM_ERR("failed to init '%s' module", module_data->name);
 835                 goto failed_load;
 836         }
 837
 838         ret = _tdm_display_check_backend_functions(private_display);
 839         if (ret != TDM_ERROR_NONE) {
 840                 module_data->deinit(private_display->bdata);
 841                 private_display->bdata = NULL;
 842                 goto failed_load;
 843         }
 844
 845         TDM_INFO("Success to load '%s' module", module_data->name);
 846
 847         return TDM_ERROR_NONE;
 848 failed_load:
 849         dlclose(module);
 850         private_display->module_data = NULL;
 851         private_display->module = NULL;
 852         return ret;
 853 }
 854
 855 static tdm_error
 856 _tdm_display_load_module(tdm_private_display *private_display)
 857 {
 858         const char *module_name;
 859         char module[TDM_NAME_LEN];
 860         struct dirent **namelist;
 861         int n;
 862         tdm_error ret = 0;
 863
 864         module_name = getenv("TDM_MODULE");
 865         if (!module_name)
 866                 module_name = TDM_DEFAULT_MODULE;
 867
 868         strncpy(module, module_name, TDM_NAME_LEN - 1);
 869         module[TDM_NAME_LEN - 1] = '\0';
 870
 871         /* load bufmgr priv from default lib */
 872         ret = _tdm_display_load_module_with_file(private_display, (const char*)module);
 873         if (ret == TDM_ERROR_NONE)
 874                 return TDM_ERROR_NONE;
 875
 876         /* load bufmgr priv from dummy lib */
 877         ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 878         if (ret == TDM_ERROR_NONE)
 879                 return TDM_ERROR_NONE;
 880
 881         /* load bufmgr priv from configured path */
 882         n = scandir(TDM_MODULE_PATH, &namelist, 0, alphasort);
 883         if (n < 0) {
 884                 TDM_ERR("no module in '%s'\n", TDM_MODULE_PATH);
 885                 return TDM_ERROR_BAD_MODULE;
 886         }
 887
 888         ret = TDM_ERROR_BAD_MODULE;
 889         while (n--) {
 890                 if (ret < 0 && strstr(namelist[n]->d_name, SUFFIX_MODULE))
 891                         ret = _tdm_display_load_module_with_file(private_display, namelist[n]->d_name);
 892
 893                 free(namelist[n]);
 894         }
 895         free(namelist);
 896
 897         return ret;
 898 }
 899
 900 static void
 901 _tdm_display_unload_module(tdm_private_display *private_display)
 902 {
 903         if (private_display->module_data)
 904                 private_display->module_data->deinit(private_display->bdata);
 905         if (private_display->module)
 906                 dlclose(private_display->module);
 907
 908         private_display->bdata = NULL;
 909         private_display->module_data = NULL;
 910         private_display->module = NULL;
 911 }
 912
 913 EXTERN tdm_display *
 914 tdm_display_init(tdm_error *error)
 915 {
 916         tdm_private_display *private_display = NULL;
 917         const char *str;
 918         tdm_error ret;
 919         double stamp1, stamp2, start;
 920
 921         pthread_mutex_lock(&gLock);
 922
 923         if (g_private_display) {
 924                 g_private_display->init_count++;
 925                 pthread_mutex_unlock(&gLock);
 926                 if (error)
 927                         *error = TDM_ERROR_NONE;
 928                 return g_private_display;
 929         }
 930
 931         start = stamp1 = tdm_helper_get_time();
 932
 933         private_display = calloc(1, sizeof(tdm_private_display));
 934         if (!private_display) {
 935                 ret = TDM_ERROR_OUT_OF_MEMORY;
 936                 TDM_ERR("'private_display != NULL' failed");
 937                 goto failed_alloc;
 938         }
 939
 940         str = getenv("TDM_DEBUG_MODULE");
 941         if (str)
 942                 tdm_display_enable_debug_module(str);
 943
 944         str = getenv("TDM_DEBUG_DUMP");
 945         if (str)
 946                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 947
 948         str = getenv("TDM_DEBUG_PATH");
 949         if (str)
 950                 tdm_display_enable_path(str);
 951
 952         if (pthread_mutex_init(&private_display->lock, NULL)) {
 953                 ret = TDM_ERROR_OPERATION_FAILED;
 954                 TDM_ERR("mutex init failed: %m");
 955                 goto failed_mutex_init;
 956         }
 957
 958         _pthread_mutex_lock(&private_display->lock);
 959
 960         stamp2 = tdm_helper_get_time();
 961         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 962         stamp1 = stamp2;
 963
 964         ret = tdm_event_loop_init(private_display);
 965         if (ret != TDM_ERROR_NONE)
 966                 goto failed_event;
 967
 968         stamp2 = tdm_helper_get_time();
 969         TDM_DBG("creating event loop time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 970         stamp1 = stamp2;
 971
 972         ret = _tdm_display_load_module(private_display);
 973         if (ret != TDM_ERROR_NONE)
 974                 goto failed_load;
 975
 976         stamp2 = tdm_helper_get_time();
 977         TDM_DBG("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 978         stamp1 = stamp2;
 979
 980 #ifdef INIT_BUFMGR
 981         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
 982         if (tdm_drm_fd >= 0) {
 983                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
 984                 close(tdm_drm_fd);
 985                 if (!private_display->bufmgr) {
 986                         TDM_ERR("tbm_bufmgr_init failed");
 987                         goto failed_update;
 988                 } else {
 989                         TDM_INFO("tbm_bufmgr_init successed");
 990                 }
 991
 992                 stamp2 = tdm_helper_get_time();
 993                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 994                 stamp1 = stamp2;
 995         }
 996 #endif
 997
 998         TDM_TRACE_BEGIN("TDM_Update_Display");
 999         ret = _tdm_display_update_internal(private_display, 0);
1000         TDM_TRACE_END();
1001         if (ret != TDM_ERROR_NONE)
1002                 goto failed_update;
1003
1004         stamp2 = tdm_helper_get_time();
1005         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1006         stamp1 = stamp2;
1007
1008         tdm_event_loop_create_backend_source(private_display);
1009
1010         private_display->init_count = 1;
1011
1012         tdm_private_output *o = NULL;
1013         LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1014                 if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1015                         tdm_output_need_validate_event_init(o);
1016         }
1017
1018         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1019          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1020          * this functionality can be turned off which means a default mode */
1021         str = getenv("TDM_COMMIT_PER_VBLANK");
1022         if (str) {
1023                 tdm_private_output *o = NULL;
1024                 char *end;
1025                 int mode = strtol(str, &end, 10);
1026
1027                 /* outputs which support hwc capability can work only
1028                  * if commit_per_vblank mode is '0' (default mode) */
1029                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link)
1030                         if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1031                                 tdm_output_choose_commit_per_vblank_mode(o, mode);
1032         }
1033
1034         g_private_display = private_display;
1035
1036         if (error)
1037                 *error = TDM_ERROR_NONE;
1038
1039         _pthread_mutex_unlock(&private_display->lock);
1040         pthread_mutex_unlock(&gLock);
1041
1042         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1043
1044         return (tdm_display *)private_display;
1045
1046 failed_update:
1047         _tdm_display_unload_module(private_display);
1048 failed_load:
1049         tdm_event_loop_stop(private_display);
1050         tdm_event_loop_deinit(private_display);
1051 failed_event:
1052         _pthread_mutex_unlock(&private_display->lock);
1053         pthread_mutex_destroy(&private_display->lock);
1054 failed_mutex_init:
1055         free(private_display);
1056 failed_alloc:
1057         if (error)
1058                 *error = ret;
1059         pthread_mutex_unlock(&gLock);
1060         return NULL;
1061 }
1062
1063 EXTERN void
1064 tdm_display_deinit(tdm_display *dpy)
1065 {
1066         tdm_private_display *private_display = dpy;
1067
1068         if (!private_display)
1069                 return;
1070
1071         pthread_mutex_lock(&gLock);
1072
1073         private_display->init_count--;
1074         if (private_display->init_count > 0) {
1075                 pthread_mutex_unlock(&gLock);
1076                 return;
1077         }
1078
1079         /* dont move the position of lock/unlock. all resource should be protected
1080          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1081          * things because it's finalized.
1082          */
1083         _pthread_mutex_lock(&private_display->lock);
1084         tdm_event_loop_stop(private_display);
1085         _tdm_display_destroy_private_display(private_display);
1086         _tdm_display_unload_module(private_display);
1087         _pthread_mutex_unlock(&private_display->lock);
1088
1089         tdm_event_loop_deinit(private_display);
1090
1091 #ifdef INIT_BUFMGR
1092         if (private_display->bufmgr)
1093                 tbm_bufmgr_deinit(private_display->bufmgr);
1094 #endif
1095
1096         tbm_drm_helper_unset_tbm_master_fd();
1097
1098         pthread_mutex_destroy(&private_display->lock);
1099         free(private_display);
1100         g_private_display = NULL;
1101
1102         if (tdm_debug_dump_dir) {
1103                 free(tdm_debug_dump_dir);
1104                 tdm_debug_dump_dir = NULL;
1105         }
1106
1107         pthread_mutex_unlock(&gLock);
1108
1109         TDM_INFO("done");
1110 }
1111
1112 INTERN int
1113 tdm_display_check_module_abi(tdm_private_display *private_display, int abimaj, int abimin)
1114 {
1115         tdm_backend_module *module = private_display->module_data;
1116
1117         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1118                 return 0;
1119
1120         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1121                 return 0;
1122
1123         return 1;
1124 }
1125
1126 INTERN tdm_error
1127 tdm_display_enable_debug_module(const char*modules)
1128 {
1129         char temp[TDM_PATH_LEN];
1130         char *arg;
1131         char *end;
1132
1133         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1134
1135         tdm_debug_module = 0;
1136
1137         arg = strtok_r(temp, TDM_DELIM, &end);
1138         while (arg) {
1139                 if (!strncmp(arg, "none", 4)) {
1140                         tdm_debug_module = 0;
1141                         return TDM_ERROR_NONE;
1142                 }
1143                 if (!strncmp(arg, "all", 3)) {
1144                         tdm_debug_module = 0xFFFFFFFF;
1145                         return TDM_ERROR_NONE;
1146                 }
1147                 if (!strncmp(arg, "buffer", 6))
1148                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1149                 else if (!strncmp(arg, "thread", 6))
1150                         tdm_debug_module |= TDM_DEBUG_THREAD;
1151                 else if (!strncmp(arg, "mutex", 5))
1152                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1153                 else if (!strncmp(arg, "vblank", 6))
1154                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1155                 else if (!strncmp(arg, "commit", 6))
1156                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1157
1158                 arg = strtok_r(NULL, TDM_DELIM, &end);
1159         }
1160
1161         TDM_INFO("module debugging... '%s'", modules);
1162
1163         return TDM_ERROR_NONE;
1164 }
1165
1166 INTERN tdm_error
1167 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1168 {
1169         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1170         char *path = NULL, *path2;
1171         char *arg;
1172         char *end;
1173
1174         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1175         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1176         if (!path2 || path2[0] == '\0')
1177                 path2 = TDM_DUMP_DIR;
1178         else
1179                 path2++;
1180
1181         tdm_debug_dump = 0;
1182
1183         snprintf(temp, sizeof(temp), "%s", dump_str);
1184         arg = strtok_r(temp, ",", &end);
1185         TDM_GOTO_IF_FAIL(arg != NULL, done);
1186
1187         if (!strncmp(arg, "none", 4)) {
1188                 tdm_debug_dump = 0;
1189                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1190                 if (tdm_debug_dump_dir) {
1191                         free(tdm_debug_dump_dir);
1192                         tdm_debug_dump_dir = NULL;
1193                 }
1194                 goto done;
1195         }
1196
1197         path = tdm_helper_dump_make_directory(path2, reply, len);
1198         TDM_GOTO_IF_FAIL(path != NULL, done);
1199
1200         if (!strncmp(arg, "current", 7)) {
1201                 tdm_private_output *o = NULL;
1202                 if (!private_display) {
1203                         TDM_WRN("no private_display");
1204                         goto done;
1205                 }
1206
1207                 LIST_FOR_EACH_ENTRY(o, &private_display->output_list, link) {
1208                         tdm_private_layer *l = NULL;
1209                         LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1210                                 char str[TDM_PATH_LEN];
1211                                 if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1212                                         continue;
1213                                 if (!l->showing_buffer)
1214                                         continue;
1215                                 snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1216                                 tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1217                         }
1218                 }
1219
1220                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1221                 goto done;
1222         }
1223
1224         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1225
1226         while (arg) {
1227                 if (!strncmp(arg, "all", 3)) {
1228                         tdm_debug_dump = 0xFFFFFFFF;
1229                         goto done;
1230                 } else if (!strncmp(arg, "layer", 5)) {
1231                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1232                 } else if (!strncmp(arg, "pp", 2)) {
1233                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1234                 } else if (!strncmp(arg, "capture", 7)) {
1235                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1236                 } else if (!strncmp(arg, "window", 6)) {
1237                         tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
1238                 } else
1239                         goto done;
1240
1241                 arg = strtok_r(NULL, ",", &end);
1242         }
1243
1244         if (tdm_debug_dump_dir)
1245                 free(tdm_debug_dump_dir);
1246
1247         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1248
1249         TDM_INFO("dump... '%s'", dump_str);
1250
1251 done:
1252         if (path)
1253                 free(path);
1254
1255         return TDM_ERROR_NONE;
1256 }
1257
1258 INTERN tdm_error
1259 tdm_display_enable_path(const char *path)
1260 {
1261         static int old_stdout = -1;
1262         char fd_name[TDM_PATH_LEN];
1263         int  log_fd = -1;
1264         FILE *log_fl;
1265
1266         if (old_stdout == -1)
1267                 old_stdout = dup(STDOUT_FILENO);
1268
1269         tdm_log_enable_dlog(0);
1270
1271         snprintf(fd_name, TDM_PATH_LEN, "%s", path);
1272
1273         log_fl = fopen(fd_name, "a");
1274         if (!log_fl) {
1275                 TDM_ERR("failed: open file(%s)\n", fd_name);
1276                 return TDM_ERROR_OPERATION_FAILED;
1277         }
1278
1279         fflush(stderr);
1280         close(STDOUT_FILENO);
1281
1282         setvbuf(log_fl, NULL, _IOLBF, 512);
1283         log_fd = fileno(log_fl);
1284
1285         dup2(log_fd, STDOUT_FILENO);
1286         fclose(log_fl);
1287
1288         return TDM_ERROR_NONE;
1289 }
1290
1291 static void
1292 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1293                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1294 {
1295         tdm_error ret = TDM_ERROR_NONE;
1296
1297         TDM_TRACE_MARK("VSYNC");
1298
1299         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1300         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1301 }
1302
1303 INTERN tdm_error
1304 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1305 {
1306         tdm_private_display *private_display = dpy;
1307         tdm_private_output *private_output = NULL;
1308         const tdm_output_mode *mode = NULL;
1309         tdm_vblank *vblank = NULL;
1310         tdm_error ret = TDM_ERROR_NONE;
1311
1312         if (!enable) {
1313                 LIST_FOR_EACH_ENTRY(private_output, &private_display->output_list, link) {
1314                         if (private_output->ttrace_vblank)
1315                                 tdm_vblank_destroy(private_output->ttrace_vblank);
1316                         private_output->ttrace_vblank = NULL;
1317                 }
1318                 return TDM_ERROR_NONE;
1319         }
1320
1321         private_output = output;
1322         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1323
1324         if (private_output->ttrace_vblank)
1325                 return TDM_ERROR_NONE;
1326
1327         vblank = tdm_vblank_create(private_display, output, &ret);
1328         TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1329
1330         ret = tdm_output_get_mode(output, &mode);
1331         TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1332
1333         ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1334         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1335
1336         ret = tdm_vblank_set_enable_fake(vblank, 1);
1337         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1338
1339         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1340         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1341
1342         private_output->ttrace_vblank = vblank;
1343
1344         return TDM_ERROR_NONE;
1345
1346 enable_fail:
1347         if (vblank)
1348                 tdm_vblank_destroy(vblank);
1349
1350         return ret;
1351 }
1352
1353 INTERN tdm_error
1354 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1355 {
1356         private_display->print_fps = enable;
1357
1358         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1359
1360         return TDM_ERROR_NONE;
1361 }