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_private.h"
  41
  42 pthread_mutex_t tdm_mutex_check_lock = PTHREAD_MUTEX_INITIALIZER;
  43 int tdm_mutex_locked;
  44 const char *tdm_mutex_lock_func;
  45 int tdm_mutex_lock_line;
  46 const char *tdm_mutex_unlock_func;
  47 int tdm_mutex_unlock_line;
  48
  49 /* LCOV_EXCL_START */
  50 static tdm_private_layer *
  51 _tdm_display_find_private_layer(tdm_private_output *private_output,
  52                                                                 tdm_layer *layer_backend)
  53 {
  54         tdm_private_layer *private_layer = NULL;
  55
  56         LIST_FOR_EACH_ENTRY(private_layer, &private_output->layer_list, link) {
  57                 if (private_layer->layer_backend == layer_backend)
  58                         return private_layer;
  59         }
  60
  61         return NULL;
  62 }
  63
  64 INTERN tdm_private_output *
  65 tdm_display_find_private_output(tdm_private_display *private_display, tdm_output *output_backend)
  66 {
  67         tdm_private_backend *private_backend = NULL;
  68         tdm_private_output *private_output = NULL;
  69
  70         LIST_FOR_EACH_ENTRY(private_backend, &private_display->backend_list, link) {
  71                 LIST_FOR_EACH_ENTRY(private_output, &private_backend->output_list, link) {
  72                         if (private_output->output_backend == output_backend)
  73                                 return private_output;
  74                 }
  75         }
  76
  77         return NULL;
  78 }
  79
  80 INTERN void *
  81 tdm_display_find_output_stamp(tdm_private_display *private_display, double stamp)
  82 {
  83         tdm_private_backend *private_backend = NULL;
  84         tdm_private_output *private_output = NULL;
  85
  86         LIST_FOR_EACH_ENTRY(private_backend, &private_display->backend_list, link) {
  87                 LIST_FOR_EACH_ENTRY(private_output, &private_backend->output_list, link) {
  88                         if (private_output->stamp == stamp)
  89                                 return private_output;
  90                 }
  91         }
  92
  93         return NULL;
  94 }
  95
  96 static void
  97 _tdm_display_destroy_caps_pp(tdm_caps_pp *caps_pp)
  98 {
  99         if (caps_pp->formats)
 100                 free(caps_pp->formats);
 101
 102         memset(caps_pp, 0, sizeof(tdm_caps_pp));
 103 }
 104
 105 static void
 106 _tdm_display_destroy_caps_capture(tdm_caps_capture *caps_capture)
 107 {
 108         if (caps_capture->formats)
 109                 free(caps_capture->formats);
 110
 111         memset(caps_capture, 0, sizeof(tdm_caps_capture));
 112 }
 113
 114 static void
 115 _tdm_display_destroy_caps_layer(tdm_caps_layer *caps_layer)
 116 {
 117         if (caps_layer->formats)
 118                 free(caps_layer->formats);
 119
 120         if (caps_layer->props)
 121                 free(caps_layer->props);
 122
 123         memset(caps_layer, 0, sizeof(tdm_caps_layer));
 124 }
 125
 126 static void
 127 _tdm_display_destroy_caps_output(tdm_caps_output *caps_output)
 128 {
 129         if (caps_output->modes)
 130                 free(caps_output->modes);
 131
 132         if (caps_output->props)
 133                 free(caps_output->props);
 134
 135         memset(caps_output, 0, sizeof(tdm_caps_output));
 136 }
 137
 138 static void
 139 _tdm_display_destroy_private_layer(tdm_private_layer *private_layer)
 140 {
 141         tdm_private_capture *c = NULL, *cc = NULL;
 142
 143         tdm_layer_unset_buffer_internal(private_layer);
 144
 145         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_layer->capture_list, link)
 146         tdm_capture_destroy_internal(c);
 147
 148         _tdm_display_destroy_caps_layer(&private_layer->caps);
 149
 150         /* when destroying layer, someone could check if layer is valid. So delete
 151          * the layer's link at last.
 152          */
 153         LIST_DEL(&private_layer->link);
 154
 155         free(private_layer);
 156 }
 157
 158 static void
 159 _tdm_display_destroy_private_output(tdm_private_output *private_output)
 160 {
 161         tdm_private_display *private_display = private_output->private_display;
 162         tdm_private_layer *l = NULL, *ll = NULL;
 163         tdm_private_hwc_window *hw = NULL, *hww = NULL;
 164         tdm_private_capture *c = NULL, *cc = NULL;
 165         tdm_private_output_vblank_handler *v = NULL, *vv = NULL;
 166         tdm_private_output_commit_handler *om = NULL, *omm = NULL;
 167         tdm_private_layer_commit_handler *lm = NULL, *lmm = NULL;
 168         tdm_private_output_change_handler *h = NULL, *hh = NULL;
 169
 170         free(private_output->layers_ptr);
 171
 172         if (private_output->vblank_timeout_timer)
 173                 tdm_event_loop_source_remove(private_output->vblank_timeout_timer);
 174
 175         LIST_FOR_EACH_ENTRY_SAFE(v, vv, &private_output->vblank_handler_list, link) {
 176                 LIST_DEL(&v->link);
 177                 free(v);
 178         }
 179
 180         LIST_FOR_EACH_ENTRY_SAFE(om, omm, &private_output->output_commit_handler_list, link) {
 181                 LIST_DEL(&om->link);
 182                 free(om);
 183         }
 184
 185         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->layer_commit_handler_list, link) {
 186                 LIST_DEL(&lm->link);
 187                 free(lm);
 188         }
 189
 190         LIST_FOR_EACH_ENTRY_SAFE(lm, lmm, &private_output->pending_commit_handler_list, link) {
 191                 LIST_DEL(&lm->link);
 192                 free(lm);
 193         }
 194
 195         LIST_FOR_EACH_ENTRY_SAFE(h, hh, &private_output->change_handler_list, link) {
 196                 LIST_DEL(&h->link);
 197                 tdm_thread_cb_remove(h->private_output, TDM_THREAD_CB_OUTPUT_CHANGE, NULL, tdm_output_thread_cb_change, h);
 198                 free(h);
 199         }
 200
 201         if (private_output->vblank) {
 202                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 203                 _pthread_mutex_unlock(&private_display->lock);
 204                 tdm_vblank_destroy(private_output->vblank);
 205                 _pthread_mutex_lock(&private_display->lock);
 206         }
 207
 208         if (private_output->ttrace_vblank) {
 209                 /* tdm_vblank APIs is for server. it should be called in unlock status*/
 210                 _pthread_mutex_unlock(&private_display->lock);
 211                 tdm_vblank_destroy(private_output->ttrace_vblank);
 212                 _pthread_mutex_lock(&private_display->lock);
 213         }
 214
 215         LIST_FOR_EACH_ENTRY_SAFE(c, cc, &private_output->capture_list, link)
 216         tdm_capture_destroy_internal(c);
 217
 218         LIST_FOR_EACH_ENTRY_SAFE(hw, hww, &private_output->hwc_window_list, link)
 219         tdm_hwc_window_destroy_internal(hw);
 220
 221         LIST_FOR_EACH_ENTRY_SAFE(l, ll, &private_output->layer_list, link)
 222         _tdm_display_destroy_private_layer(l);
 223
 224         _tdm_display_destroy_caps_output(&private_output->caps);
 225
 226         tdm_thread_cb_remove(private_output, TDM_THREAD_CB_NEED_VALIDATE, NULL,
 227                                                  tdm_output_need_validate_handler_thread, NULL);
 228         tdm_event_loop_source_remove(private_output->need_validate.event_source);
 229         close(private_output->need_validate.event_fd);
 230
 231         /* when destroying output, vblank objects are also destroyed. vblank checks
 232          * if output object is valid. So delete the output's link at last.
 233          */
 234         LIST_DEL(&private_output->link);
 235
 236         private_output->stamp = 0;
 237         free(private_output);
 238 }
 239
 240 static void
 241 _tdm_display_destroy_private_display(tdm_private_display *private_display)
 242 {
 243         tdm_private_backend *private_backend = NULL, *bb = NULL;
 244         tdm_private_output *o = NULL, *oo = NULL;
 245         tdm_private_pp *p = NULL, *pp = NULL;
 246
 247         LIST_FOR_EACH_ENTRY_SAFE(private_backend, bb, &private_display->backend_list, link) {
 248                 LIST_FOR_EACH_ENTRY_SAFE(p, pp, &private_backend->pp_list, link) {
 249                         tdm_pp_destroy_internal(p);
 250                 }
 251
 252                 LIST_FOR_EACH_ENTRY_SAFE(o, oo, &private_backend->output_list, link) {
 253                         _tdm_display_destroy_private_output(o);
 254                 }
 255
 256                 _tdm_display_destroy_caps_pp(&private_backend->caps_pp);
 257                 _tdm_display_destroy_caps_capture(&private_backend->caps_capture);
 258
 259                 private_backend->capabilities = 0;
 260                 private_backend->caps_display.max_layer_count = 0;
 261
 262                 if (private_backend->outputs) {
 263                         free(private_backend->outputs);
 264                         private_backend->outputs = NULL;
 265                 }
 266         }
 267 }
 268
 269 static tdm_error
 270 _tdm_display_update_caps_pp(tdm_private_backend *private_backend, tdm_caps_pp *caps)
 271 {
 272         tdm_func_display *func_display;
 273         tdm_error ret;
 274
 275         func_display = &private_backend->func_display;
 276
 277         if (!func_display->display_get_pp_capability) {
 278                 TDM_ERR("backend(%s) no display_get_pp_capability()", private_backend->module_data->name);
 279                 return TDM_ERROR_BAD_MODULE;
 280         }
 281
 282         ret = func_display->display_get_pp_capability(private_backend->bdata, caps);
 283         if (ret != TDM_ERROR_NONE) {
 284                 TDM_ERR("backend(%s) display_get_pp_capability() failed", private_backend->module_data->name);
 285                 return TDM_ERROR_BAD_MODULE;
 286         }
 287
 288         return TDM_ERROR_NONE;
 289 }
 290
 291 static tdm_error
 292 _tdm_display_update_caps_capture(tdm_private_backend *private_backend, tdm_caps_capture *caps)
 293 {
 294         tdm_func_display *func_display;
 295         tdm_error ret;
 296
 297         func_display = &private_backend->func_display;
 298
 299         if (!func_display->display_get_capture_capability) {
 300                 TDM_ERR("backend(%s) no display_get_capture_capability()", private_backend->module_data->name);
 301                 return TDM_ERROR_BAD_MODULE;
 302         }
 303
 304         ret = func_display->display_get_capture_capability(private_backend->bdata, caps);
 305         if (ret != TDM_ERROR_NONE) {
 306                 TDM_ERR("backend(%s) display_get_capture_capability() failed", private_backend->module_data->name);
 307                 return TDM_ERROR_BAD_MODULE;
 308         }
 309
 310         return TDM_ERROR_NONE;
 311 }
 312
 313 static tdm_error
 314 _tdm_display_update_caps_layer(tdm_private_backend *private_backend,
 315                                                            tdm_layer *layer_backend, tdm_caps_layer *caps)
 316 {
 317         tdm_func_layer *func_layer = &private_backend->func_layer;
 318         tdm_error ret;
 319
 320         if (!func_layer->layer_get_capability) {
 321                 TDM_ERR("backend(%s) no layer_get_capability()", private_backend->module_data->name);
 322                 return TDM_ERROR_BAD_MODULE;
 323         }
 324
 325         ret = func_layer->layer_get_capability(layer_backend, caps);
 326         if (ret != TDM_ERROR_NONE) {
 327                 TDM_ERR("backend(%s) layer_get_capability() failed", private_backend->module_data->name);
 328                 return TDM_ERROR_BAD_MODULE;
 329         }
 330
 331         return TDM_ERROR_NONE;
 332 }
 333
 334 static tdm_error
 335 _tdm_display_update_caps_output(tdm_private_backend *private_backend, int pipe,
 336                                                                 tdm_output *output_backend, tdm_caps_output *caps)
 337 {
 338         tdm_func_output *func_output = &private_backend->func_output;
 339         char temp[TDM_NAME_LEN];
 340         tdm_error ret;
 341         double stamp;
 342
 343         if (!func_output->output_get_capability) {
 344                 TDM_ERR("backend(%s) no output_get_capability()", private_backend->module_data->name);
 345                 return TDM_ERROR_BAD_MODULE;
 346         }
 347
 348         stamp = tdm_helper_get_time();
 349         ret = func_output->output_get_capability(output_backend, caps);
 350         TDM_DBG("backend(%s) backend output_get_capability() time: %.3f ms",
 351                         private_backend->module_data->name, (tdm_helper_get_time() - stamp) * 1000.0);
 352
 353         if (ret != TDM_ERROR_NONE) {
 354                 TDM_ERR("backend(%s) output_get_capability() failed", private_backend->module_data->name);
 355                 return TDM_ERROR_BAD_MODULE;
 356         }
 357
 358         /* FIXME: Use model for tdm client to distinguish amoung outputs */
 359         snprintf(temp, TDM_NAME_LEN, "%s-%d", caps->model, pipe);
 360         snprintf(caps->model, TDM_NAME_LEN, "%s", temp);
 361
 362         return TDM_ERROR_NONE;
 363 }
 364
 365 static tdm_error
 366 _tdm_display_update_layer(tdm_private_output *private_output,
 367                                                   tdm_layer *layer_backend, int index)
 368 {
 369         tdm_private_layer *private_layer;
 370         tdm_error ret;
 371
 372         private_layer = _tdm_display_find_private_layer(private_output, layer_backend);
 373         if (!private_layer) {
 374                 private_layer = calloc(1, sizeof(tdm_private_layer));
 375                 TDM_RETURN_VAL_IF_FAIL(private_layer != NULL, TDM_ERROR_OUT_OF_MEMORY);
 376
 377                 LIST_ADDTAIL(&private_layer->link, &private_output->layer_list);
 378                 LIST_INITHEAD(&private_layer->capture_list);
 379
 380                 private_layer->index = index;
 381                 private_layer->private_backend = private_output->private_backend;
 382                 private_layer->private_display = private_output->private_display;
 383                 private_layer->private_output = private_output;
 384                 private_layer->layer_backend = layer_backend;
 385                 private_layer->usable = 1;
 386         }
 387
 388         _tdm_display_destroy_caps_layer(&private_layer->caps);
 389
 390         ret = _tdm_display_update_caps_layer(private_output->private_backend, layer_backend, &private_layer->caps);
 391         TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 392
 393         return TDM_ERROR_NONE;
 394 }
 395
 396 INTERN tdm_error
 397 tdm_display_update_output(tdm_private_backend *private_backend,
 398                                                   tdm_output *output_backend, int pipe, unsigned int need_new_caps)
 399 {
 400         tdm_func_output *func_output = &private_backend->func_output;
 401         tdm_private_output *private_output = NULL;
 402         tdm_layer **layers = NULL;
 403         int layer_count = 0, i;
 404         tdm_error ret;
 405
 406         private_output = tdm_display_find_private_output(private_backend->private_display, output_backend);
 407         if (!private_output) {
 408                 private_output = calloc(1, sizeof(tdm_private_output));
 409                 TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_OUT_OF_MEMORY);
 410
 411                 private_output->stamp = tdm_helper_get_time();
 412                 while (tdm_display_find_output_stamp(private_backend->private_display, private_output->stamp))
 413                         private_output->stamp++;
 414
 415                 LIST_ADDTAIL(&private_output->link, &private_backend->output_list);
 416
 417                 private_output->private_backend = private_backend;
 418                 private_output->private_display = private_backend->private_display;
 419                 private_output->current_dpms_value = TDM_OUTPUT_DPMS_OFF;
 420                 private_output->output_backend = output_backend;
 421                 private_output->pipe = pipe;
 422                 private_output->index = pipe;
 423
 424                 LIST_INITHEAD(&private_output->layer_list);
 425                 LIST_INITHEAD(&private_output->hwc_window_list);
 426                 LIST_INITHEAD(&private_output->capture_list);
 427                 LIST_INITHEAD(&private_output->vblank_handler_list);
 428                 LIST_INITHEAD(&private_output->output_commit_handler_list);
 429                 LIST_INITHEAD(&private_output->layer_commit_handler_list);
 430                 LIST_INITHEAD(&private_output->pending_commit_handler_list);
 431                 LIST_INITHEAD(&private_output->change_handler_list);
 432
 433                 if (func_output->output_set_status_handler) {
 434                         func_output->output_set_status_handler(private_output->output_backend,
 435                                                                                                    tdm_output_cb_status,
 436                                                                                                    private_output);
 437                         private_output->regist_change_cb = 1;
 438                 }
 439         }
 440
 441         /* need_new_caps will be true only in case of "disconnected -> connected" and "connected -> disconnected"
 442          * because we have to get new modes.
 443          */
 444         if (need_new_caps) {
 445                 _tdm_display_destroy_caps_output(&private_output->caps);
 446
 447                 ret = _tdm_display_update_caps_output(private_backend, pipe, output_backend, &private_output->caps);
 448                 TDM_RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
 449         }
 450
 451         layers = func_output->output_get_layers(output_backend, &layer_count, &ret);
 452         if (ret != TDM_ERROR_NONE) {
 453                 free(layers);
 454                 return ret;
 455         }
 456
 457         for (i = 0; i < layer_count; i++) {
 458                 ret = _tdm_display_update_layer(private_output, layers[i], i);
 459                 if (ret != TDM_ERROR_NONE) {
 460                         free(layers);
 461                         return ret;
 462                 }
 463         }
 464
 465         free(layers);
 466
 467         return TDM_ERROR_NONE;
 468 }
 469
 470 static tdm_output **
 471 _tdm_display_set_main_first(tdm_output **outputs, int index)
 472 {
 473         tdm_output *output_tmp = NULL;
 474
 475         if (index == 0)
 476                 return outputs;
 477
 478         output_tmp = outputs[0];
 479         outputs[0] = outputs[index];
 480         outputs[index] = output_tmp;
 481
 482         return outputs;
 483 }
 484
 485 static tdm_output **
 486 _tdm_display_get_ordered_outputs(tdm_private_backend *private_backend, int *count)
 487 {
 488         tdm_func_display *func_display = &private_backend->func_display;
 489         tdm_output **outputs = NULL;
 490         tdm_output **new_outputs = NULL;
 491         tdm_output *output_dsi = NULL;
 492         tdm_output *output_lvds = NULL;
 493         tdm_output *output_hdmia = NULL;
 494         tdm_output *output_hdmib = NULL;
 495         int i, output_count = 0, output_connected_count = 0;
 496         int index_dsi = 0, index_lvds = 0, index_hdmia = 0, index_hdmib = 0;
 497         tdm_error ret;
 498
 499         /* don't change list order if not init time */
 500         if (private_backend->outputs) {
 501                 TDM_ERR("can't change output order");
 502                 return private_backend->outputs;
 503         }
 504
 505         outputs = func_display->display_get_outputs(private_backend->bdata, &output_count, &ret);
 506         if (ret != TDM_ERROR_NONE)
 507                 goto failed_get_outputs;
 508
 509         *count = output_count;
 510
 511         if (output_count == 0)
 512                 goto failed_get_outputs;
 513         else if (output_count == 1) {
 514                 private_backend->outputs = outputs;
 515                 return outputs;
 516         }
 517
 518         /* count connected outputs */
 519         for (i = 0; i < output_count; i++) {
 520                 tdm_func_output *func_output = &private_backend->func_output;
 521                 tdm_caps_output caps;
 522                 memset(&caps, 0, sizeof(tdm_caps_output));
 523
 524                 if (!func_output->output_get_capability) {
 525                         TDM_ERR("no output_get_capability()");
 526                         goto failed_get_outputs;
 527                 }
 528
 529                 ret = func_output->output_get_capability(outputs[i], &caps);
 530                 if (ret != TDM_ERROR_NONE) {
 531                         TDM_ERR("output_get_capability() failed");
 532                         goto failed_get_outputs;
 533                 }
 534
 535                 if (caps.status == TDM_OUTPUT_CONN_STATUS_CONNECTED) {
 536                         output_connected_count++;
 537
 538                         switch (caps.type) {
 539                         case TDM_OUTPUT_TYPE_DSI:
 540                                 output_dsi = outputs[i];
 541                                 index_dsi = i;
 542                                 break;
 543                         case TDM_OUTPUT_TYPE_LVDS:
 544                                 output_lvds = outputs[i];
 545                                 index_lvds = i;
 546                                 break;
 547                         case TDM_OUTPUT_TYPE_HDMIA:
 548                                 output_hdmia = outputs[i];
 549                                 index_hdmia = i;
 550                                 break;
 551                         case TDM_OUTPUT_TYPE_HDMIB:
 552                                 output_hdmib = outputs[i];
 553                                 index_hdmib = i;
 554                                 break;
 555                         default:
 556                                 break;
 557                         }
 558                 }
 559
 560                 _tdm_display_destroy_caps_output(&caps);
 561         }
 562
 563         /* ordering : main output is first */
 564         /* If there is no connected output, lvds or dsi cannot be main display. (cannot connect after booting)
 565           * But hdmi is possible, so set hdmi to main display.
 566           * If connected only one output, it is main output.
 567           * If connected outputs over 2, has priority like below.
 568           * (dsi > lvds > hdmi > else)
 569           */
 570         if (output_connected_count == 0) {
 571                 /* hdmi > dsi > lvds > else */
 572                 if (output_hdmia != NULL)
 573                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 574                 else if (output_hdmib != NULL)
 575                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 576                 else if (output_dsi != NULL)
 577                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 578                 else if (output_lvds != NULL)
 579                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 580                 else
 581                         new_outputs = outputs;
 582         } else { /* (output_connected_count > 1) */
 583                 /* dsi > lvds > hdmi > else */
 584                 if (output_dsi != NULL)
 585                         new_outputs = _tdm_display_set_main_first(outputs, index_dsi);
 586                 else if (output_lvds != NULL)
 587                         new_outputs = _tdm_display_set_main_first(outputs, index_lvds);
 588                 else if (output_hdmia != NULL)
 589                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmia);
 590                 else if (output_hdmib != NULL)
 591                         new_outputs = _tdm_display_set_main_first(outputs, index_hdmib);
 592                 else
 593                         new_outputs = outputs;
 594         }
 595
 596         private_backend->outputs = new_outputs;
 597
 598         return new_outputs;
 599
 600 failed_get_outputs:
 601         free(outputs);
 602         *count = 0;
 603         return NULL;
 604 }
 605
 606 static tdm_error
 607 _tdm_display_update(tdm_private_display *private_display)
 608 {
 609         tdm_private_backend *private_backend = NULL;
 610         tdm_error ret = TDM_ERROR_NONE;
 611         int index = 0;
 612
 613         if (private_display->pp_backend) {
 614                 ret = _tdm_display_update_caps_pp(private_display->pp_backend,
 615                                                                                   &private_display->pp_backend->caps_pp);
 616                 if (ret != TDM_ERROR_NONE)
 617                         goto failed_update;
 618         }
 619
 620         if (private_display->capture_backend) {
 621                 ret = _tdm_display_update_caps_capture(private_display->capture_backend,
 622                                                                                            &private_display->capture_backend->caps_capture);
 623                 if (ret != TDM_ERROR_NONE)
 624                         goto failed_update;
 625         }
 626
 627         LIST_FOR_EACH_ENTRY(private_backend, &private_display->backend_list, link) {
 628                 tdm_output **outputs;
 629                 int output_count = 0, i;
 630
 631                 outputs = _tdm_display_get_ordered_outputs(private_backend, &output_count);
 632                 if (!outputs)
 633                         goto failed_update;
 634
 635                 for (i = 0; i < output_count; i++) {
 636                         ret = tdm_display_update_output(private_backend, outputs[i], index++, 1);
 637                         if (ret != TDM_ERROR_NONE)
 638                                 goto failed_update;
 639                 }
 640         }
 641
 642         return TDM_ERROR_NONE;
 643
 644 failed_update:
 645         _tdm_display_destroy_private_display(private_display);
 646         return ret;
 647 }
 648 /* LCOV_EXCL_STOP */
 649
 650 EXTERN tdm_error
 651 tdm_display_update(tdm_display *dpy)
 652 {
 653         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 654         TDM_RETURN_VAL_IF_FAIL(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER);
 655
 656         TDM_DEPRECATED(NULL);
 657
 658         return TDM_ERROR_NONE;
 659 }
 660
 661 int tdm_debug_module;
 662 int tdm_debug_dump;
 663 int tdm_ttrace_module;
 664 int tdm_ttrace_output;
 665
 666 static tdm_private_display *g_private_display;
 667 static pthread_mutex_t gLock = PTHREAD_MUTEX_INITIALIZER;
 668
 669 /* LCOV_EXCL_START */
 670 static tdm_error
 671 _tdm_display_check_module(tdm_backend_module *module)
 672 {
 673         int major, minor;
 674
 675         TDM_INFO("TDM ABI version : %d.%d",
 676                          TDM_MAJOR_VERSION, TDM_MINOR_VERSION);
 677
 678         if (!module->name) {
 679                 TDM_ERR("TDM backend doesn't have name");
 680                 return TDM_ERROR_BAD_MODULE;
 681         }
 682
 683         if (!module->vendor) {
 684                 TDM_ERR("TDM backend doesn't have vendor");
 685                 return TDM_ERROR_BAD_MODULE;
 686         }
 687
 688         major = TDM_BACKEND_GET_ABI_MAJOR(module->abi_version);
 689         minor = TDM_BACKEND_GET_ABI_MINOR(module->abi_version);
 690
 691         TDM_INFO("TDM module name: %s", module->name);
 692         TDM_INFO("'%s' vendor: %s", module->name, module->vendor);
 693         TDM_INFO("'%s' version: %d.%d", module->name, major, minor);
 694
 695         if (major != TDM_MAJOR_VERSION) {
 696                 TDM_ERR("'%s' major version mismatch, %d != %d",
 697                                 module->name, major, TDM_MAJOR_VERSION);
 698                 return TDM_ERROR_BAD_MODULE;
 699         }
 700
 701         if (minor > TDM_MINOR_VERSION) {
 702                 TDM_ERR("'%s' minor version(%d) is newer than %d",
 703                                 module->name, minor, TDM_MINOR_VERSION);
 704                 return TDM_ERROR_BAD_MODULE;
 705         }
 706
 707         if (!module->init) {
 708                 TDM_ERR("'%s' doesn't have init function", module->name);
 709                 return TDM_ERROR_BAD_MODULE;
 710         }
 711
 712         if (!module->deinit) {
 713                 TDM_ERR("'%s' doesn't have deinit function", module->name);
 714                 return TDM_ERROR_BAD_MODULE;
 715         }
 716
 717         return TDM_ERROR_NONE;
 718 }
 719
 720 static tdm_error
 721 _tdm_display_check_backend_functions(tdm_private_backend *private_backend)
 722 {
 723         tdm_func_display *func_display = &private_backend->func_display;
 724         tdm_func_output *func_output = &private_backend->func_output;
 725         tdm_func_layer *func_layer = &private_backend->func_layer;
 726         tdm_error ret;
 727
 728         /* below functions should be implemented in backend side */
 729
 730         TDM_RETURN_VAL_IF_FAIL(func_display != NULL, TDM_ERROR_BAD_MODULE);
 731         TDM_RETURN_VAL_IF_FAIL(func_display->display_get_outputs, TDM_ERROR_BAD_MODULE);
 732         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_capability, TDM_ERROR_BAD_MODULE);
 733         TDM_RETURN_VAL_IF_FAIL(func_output->output_get_layers, TDM_ERROR_BAD_MODULE);
 734         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_get_capability, TDM_ERROR_BAD_MODULE);
 735
 736         ret = func_display->display_get_capability(private_backend->bdata, &private_backend->caps_display);
 737         if (ret != TDM_ERROR_NONE) {
 738                 TDM_ERR("display_get_capability() failed");
 739                 return TDM_ERROR_BAD_MODULE;
 740         }
 741
 742         if (private_backend->capabilities & TDM_DISPLAY_CAPABILITY_PP) {
 743                 tdm_func_pp *func_pp = &private_backend->func_pp;
 744                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_pp_capability, TDM_ERROR_BAD_MODULE);
 745                 TDM_RETURN_VAL_IF_FAIL(func_display->display_create_pp, TDM_ERROR_BAD_MODULE);
 746                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_destroy, TDM_ERROR_BAD_MODULE);
 747                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_commit, TDM_ERROR_BAD_MODULE);
 748                 TDM_RETURN_VAL_IF_FAIL(func_pp->pp_set_done_handler, TDM_ERROR_BAD_MODULE);
 749         }
 750
 751         if (private_backend->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE) {
 752                 tdm_func_capture *func_capture = &private_backend->func_capture;
 753                 TDM_RETURN_VAL_IF_FAIL(func_display->display_get_capture_capability, TDM_ERROR_BAD_MODULE);
 754                 if (private_backend->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)
 755                         TDM_RETURN_VAL_IF_FAIL(func_output->output_create_capture, TDM_ERROR_BAD_MODULE);
 756                 if (private_backend->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)
 757                         TDM_RETURN_VAL_IF_FAIL(func_layer->layer_create_capture, TDM_ERROR_BAD_MODULE);
 758                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_destroy, TDM_ERROR_BAD_MODULE);
 759                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_commit, TDM_ERROR_BAD_MODULE);
 760                 TDM_RETURN_VAL_IF_FAIL(func_capture->capture_set_done_handler, TDM_ERROR_BAD_MODULE);
 761         }
 762
 763         return TDM_ERROR_NONE;
 764 }
 765
 766 static tdm_error
 767 _tdm_display_load_module_with_file(tdm_private_display *private_display,
 768                                                                    const char *file)
 769 {
 770         char path[TDM_PATH_LEN] = {0,};
 771         void *module = NULL;
 772         tdm_backend_module *module_data;
 773         tdm_backend_data *bdata = NULL;
 774         tdm_private_backend *private_backend = NULL;
 775         tdm_error ret;
 776         double stamp;
 777         int size;
 778
 779         size = snprintf(path, sizeof(path), TDM_MODULE_PATH "/%s", file);
 780         if (size >= (int)sizeof(path)) {
 781                 TDM_WRN("too long: %s/%s", TDM_MODULE_PATH, file);
 782                 return TDM_ERROR_BAD_MODULE;
 783         };
 784
 785         private_backend = calloc(1, sizeof *private_backend);
 786         if (!private_backend) {
 787                 TDM_ERR("alloc failed: %m");
 788                 ret = TDM_ERROR_OUT_OF_MEMORY;
 789                 goto failed_load;
 790         }
 791
 792         private_backend->private_display = private_display;
 793
 794         stamp = tdm_helper_get_time();
 795
 796         TDM_TRACE_BEGIN("TDM_Load_Backend");
 797         module = dlopen(path, RTLD_LAZY);
 798         if (!module) {
 799                 TDM_ERR("failed to load module: %s(%s)", dlerror(), file);
 800                 TDM_TRACE_END();
 801                 ret = TDM_ERROR_BAD_MODULE;
 802                 goto failed_load;
 803         }
 804
 805         private_backend->module = module;
 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         private_backend->module_data = module_data;
 817
 818         TDM_DBG("dlopen, dlsym time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 819
 820         /* check if version, init() and deinit() are valid or not */
 821         ret = _tdm_display_check_module(module_data);
 822         if (ret != TDM_ERROR_NONE) {
 823                 TDM_ERR("backend(%s) load failed: check module error", module_data->name);
 824                 goto failed_load;
 825         }
 826
 827         private_display->current_backend = private_backend;
 828
 829         /* We don't care if backend_data is NULL or not. It's up to backend. */
 830         TDM_TRACE_BEGIN("TDM_Init_Backend");
 831         stamp = tdm_helper_get_time();
 832         bdata = module_data->init((tdm_display *)private_display, &ret);
 833         TDM_DBG("backend init() time: %.3f ms", (tdm_helper_get_time() - stamp) * 1000.0);
 834         TDM_TRACE_END();
 835
 836         private_display->current_backend = NULL;
 837
 838         private_backend->bdata = bdata;
 839
 840         if (ret != TDM_ERROR_NONE) {
 841                 TDM_ERR("backend(%s) load failed: init error", module_data->name);
 842                 goto failed_load;
 843         }
 844
 845         ret = _tdm_display_check_backend_functions(private_backend);
 846         if (ret != TDM_ERROR_NONE) {
 847                 TDM_ERR("backend(%s) load failed: check functions error", module_data->name);
 848                 goto failed_load;
 849         }
 850
 851         LIST_INITHEAD(&private_backend->output_list);
 852         LIST_INITHEAD(&private_backend->pp_list);
 853         LIST_INITHEAD(&private_backend->capture_list);
 854
 855         LIST_ADDTAIL(&private_backend->link, &private_display->backend_list);
 856
 857         TDM_INFO("Success to load '%s' module", module_data->name);
 858
 859         return TDM_ERROR_NONE;
 860 failed_load:
 861         if (bdata)
 862                 module_data->deinit(bdata);
 863         dlclose(module);
 864         if (private_backend)
 865                 free(private_backend);
 866         return ret;
 867 }
 868
 869 static tdm_error
 870 _tdm_display_load_modules(tdm_private_display *private_display)
 871 {
 872         const char *module_names;
 873         tdm_error ret = 0;
 874         char temp[TDM_PATH_LEN];
 875         char *arg;
 876         char *end;
 877
 878         LIST_INITHEAD(&private_display->backend_list);
 879
 880         module_names = tdm_config_get_string(TDM_CONFIG_KEY_GENERAL_BACKENDS, TDM_DEFAULT_MODULE);
 881
 882         snprintf(temp, TDM_PATH_LEN, "%s", module_names);
 883
 884         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
 885         while (arg) {
 886                 TDM_INFO("loading a %s backend", arg);
 887                 ret = _tdm_display_load_module_with_file(private_display, arg);
 888                 if (ret == TDM_ERROR_NONE)
 889                         TDM_INFO("%s backend loading success", arg);
 890                 else
 891                         TDM_INFO("%s backend loading failed", arg);
 892                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
 893         }
 894
 895         /* load bufmgr priv from dummy lib */
 896         if (LIST_IS_EMPTY(&private_display->backend_list)) {
 897                 TDM_WRN("No backend. loading a %s backend", TDM_DUMMY_MODULE);
 898                 ret = _tdm_display_load_module_with_file(private_display, TDM_DUMMY_MODULE);
 899                 if (ret == TDM_ERROR_NONE)
 900                         TDM_INFO("%s backend loading success", TDM_DUMMY_MODULE);
 901                 else
 902                         TDM_INFO("%s backend loading failed", TDM_DUMMY_MODULE);
 903         }
 904
 905         return ret;
 906 }
 907
 908 static void
 909 _tdm_display_unload_modules(tdm_private_display *private_display)
 910 {
 911         tdm_private_backend *private_backend = NULL, *bb = NULL;
 912
 913         LIST_FOR_EACH_ENTRY_SAFE(private_backend, bb, &private_display->backend_list, link) {
 914                 LIST_DEL(&private_backend->link);
 915
 916                 if (private_backend->module_data)
 917                         private_backend->module_data->deinit(private_backend->bdata);
 918                 if (private_backend->module)
 919                         dlclose(private_backend->module);
 920
 921                 free(private_backend);
 922         }
 923 }
 924 /* LCOV_EXCL_STOP */
 925
 926 EXTERN tdm_display *
 927 tdm_display_init(tdm_error *error)
 928 {
 929         tdm_private_display *private_display = NULL;
 930         const char *str;
 931         tdm_error ret;
 932         double stamp1, stamp2, start;
 933         int mode;
 934
 935         pthread_mutex_lock(&gLock);
 936
 937         if (g_private_display) {
 938                 g_private_display->init_count++;
 939                 pthread_mutex_unlock(&gLock);
 940                 if (error)
 941                         *error = TDM_ERROR_NONE;
 942                 return g_private_display;
 943         }
 944
 945         start = stamp1 = tdm_helper_get_time();
 946
 947         stamp2 = tdm_helper_get_time();
 948         TDM_INFO("config init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 949         stamp1 = stamp2;
 950
 951         private_display = calloc(1, sizeof(tdm_private_display));
 952         if (!private_display) {
 953                 /* LCOV_EXCL_START */
 954                 ret = TDM_ERROR_OUT_OF_MEMORY;
 955                 TDM_ERR("'private_display != NULL' failed");
 956                 goto failed_alloc;
 957                 /* LCOV_EXCL_STOP */
 958         }
 959
 960         private_display->stamp = tdm_helper_get_time();
 961
 962         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_MODULE, NULL);
 963         if (str)
 964                 tdm_display_enable_debug_module(str);
 965
 966         str = tdm_config_get_string(TDM_CONFIG_KEY_DEBUG_DUMP, NULL);
 967         if (str)
 968                 tdm_display_enable_dump(private_display, str, NULL, NULL);
 969
 970         if (pthread_mutex_init(&private_display->lock, NULL)) {
 971                 /* LCOV_EXCL_START */
 972                 ret = TDM_ERROR_OPERATION_FAILED;
 973                 TDM_ERR("mutex init failed: %m");
 974                 goto failed_mutex_init;
 975                 /* LCOV_EXCL_STOP */
 976         }
 977
 978         _pthread_mutex_lock(&private_display->lock);
 979
 980         stamp2 = tdm_helper_get_time();
 981         TDM_DBG("prepare init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 982         stamp1 = stamp2;
 983
 984         ret = tdm_event_loop_init(private_display);
 985         if (ret != TDM_ERROR_NONE)
 986                 goto failed_event;
 987
 988         stamp2 = tdm_helper_get_time();
 989         TDM_INFO("event loop init time: %.3f ms", (stamp2 - stamp1) * 1000.0);
 990         stamp1 = stamp2;
 991
 992         ret = tdm_vblank_init(private_display);
 993         if (ret != TDM_ERROR_NONE)
 994                 goto failed_vblank;
 995
 996         ret = tdm_output_init(private_display);
 997         if (ret != TDM_ERROR_NONE)
 998                 goto failed_load;
 999
1000         ret = tdm_pp_init(private_display);
1001         if (ret != TDM_ERROR_NONE)
1002                 goto failed_load;
1003
1004         ret = tdm_capture_init(private_display);
1005         if (ret != TDM_ERROR_NONE)
1006                 goto failed_load;
1007
1008         ret = _tdm_display_load_modules(private_display);
1009         if (ret != TDM_ERROR_NONE)
1010                 goto failed_load;
1011
1012         stamp2 = tdm_helper_get_time();
1013         TDM_INFO("loading backend time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1014         stamp1 = stamp2;
1015
1016 #ifdef INIT_BUFMGR
1017         int tdm_drm_fd = tdm_helper_get_fd("TDM_DRM_MASTER_FD");
1018         if (tdm_drm_fd >= 0) {
1019                 private_display->bufmgr = tbm_bufmgr_init(tdm_drm_fd);
1020                 close(tdm_drm_fd);
1021                 if (!private_display->bufmgr) {
1022                         TDM_ERR("tbm_bufmgr_init failed");
1023                         goto failed_update;
1024                 } else {
1025                         TDM_INFO("tbm_bufmgr_init successed");
1026                 }
1027
1028                 stamp2 = tdm_helper_get_time();
1029                 TDM_DBG("initializing bufmgr time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1030                 stamp1 = stamp2;
1031         }
1032 #endif
1033
1034         TDM_TRACE_BEGIN("TDM_Update_Display");
1035         ret = _tdm_display_update(private_display);
1036         TDM_TRACE_END();
1037         if (ret != TDM_ERROR_NONE)
1038                 goto failed_update;
1039
1040         stamp2 = tdm_helper_get_time();
1041         TDM_DBG("updating display time: %.3f ms", (stamp2 - stamp1) * 1000.0);
1042         stamp1 = stamp2;
1043
1044         tdm_event_loop_create_backend_source(private_display);
1045
1046         private_display->init_count = 1;
1047         g_private_display = private_display;
1048
1049         tdm_private_backend *b = NULL;
1050         tdm_private_output *o = NULL;
1051         LIST_FOR_EACH_ENTRY(b, &private_display->backend_list, link) {
1052                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1053                         if (o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC)
1054                                 tdm_output_need_validate_event_init(o);
1055                 }
1056         }
1057
1058         /* the COMMIT_PER_VBLANK functionality is ability of an output to support
1059          * several operational modes (commit_per_vblank modes) related to tdm_commit;
1060          * this functionality can be turned off which means a default mode */
1061         mode = tdm_config_get_int(TDM_CONFIG_KEY_GENERAL_COMMIT_PER_VBLANK, 0);
1062         if (mode > 0) {
1063                 tdm_private_backend *b = NULL;
1064                 tdm_private_output *o = NULL;
1065
1066                 /* outputs which support hwc capability can work only
1067                  * if commit_per_vblank mode is '0' (default mode) */
1068                 LIST_FOR_EACH_ENTRY(b, &private_display->backend_list, link) {
1069                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1070                                 if (!(o->caps.capabilities & TDM_OUTPUT_CAPABILITY_HWC))
1071                                         tdm_output_choose_commit_per_vblank_mode(o, mode);
1072                         }
1073                 }
1074         }
1075
1076         if (error)
1077                 *error = TDM_ERROR_NONE;
1078
1079         _pthread_mutex_unlock(&private_display->lock);
1080         pthread_mutex_unlock(&gLock);
1081
1082         TDM_INFO("init time: %.3f ms", (tdm_helper_get_time() - start) * 1000.0);
1083
1084         return (tdm_display *)private_display;
1085
1086 /* LCOV_EXCL_START */
1087 failed_update:
1088         _tdm_display_unload_modules(private_display);
1089 failed_load:
1090         tdm_event_loop_stop(private_display);
1091         tdm_event_loop_deinit(private_display);
1092 failed_event:
1093         tdm_vblank_deinit(private_display);
1094 failed_vblank:
1095         _pthread_mutex_unlock(&private_display->lock);
1096         pthread_mutex_destroy(&private_display->lock);
1097 failed_mutex_init:
1098         free(private_display);
1099 failed_alloc:
1100         if (error)
1101                 *error = ret;
1102         pthread_mutex_unlock(&gLock);
1103         return NULL;
1104 /* LCOV_EXCL_STOP */
1105 }
1106
1107 EXTERN void
1108 tdm_display_deinit(tdm_display *dpy)
1109 {
1110         tdm_private_display *private_display = dpy;
1111
1112         if (!private_display)
1113                 return;
1114
1115         TDM_RETURN_IF_FAIL(tdm_display_is_valid(dpy));
1116
1117         pthread_mutex_lock(&gLock);
1118
1119         private_display->init_count--;
1120         if (private_display->init_count > 0) {
1121                 pthread_mutex_unlock(&gLock);
1122                 return;
1123         }
1124
1125         /* dont move the position of lock/unlock. all resource should be protected
1126          * during destroying. after tdm_event_loop_deinit, we don't worry about thread
1127          * things because it's finalized.
1128          */
1129         _pthread_mutex_lock(&private_display->lock);
1130         tdm_event_loop_stop(private_display);
1131         tdm_event_loop_deinit(private_display);
1132         _pthread_mutex_unlock(&private_display->lock);
1133
1134         /* when private_output is destroyed, all vblank resources of client and server
1135          * are destroyed. Then we can call tdm_vblank_deinit. After destroying display,
1136          * we can unload backend modulues.
1137          */
1138         _tdm_display_destroy_private_display(private_display);
1139         _tdm_display_unload_modules(private_display);
1140
1141         tdm_vblank_deinit(private_display);
1142
1143 #ifdef INIT_BUFMGR
1144         if (private_display->bufmgr)
1145                 tbm_bufmgr_deinit(private_display->bufmgr);
1146 #endif
1147
1148         tbm_drm_helper_unset_tbm_master_fd();
1149
1150         pthread_mutex_destroy(&private_display->lock);
1151         free(private_display);
1152         g_private_display = NULL;
1153
1154         if (tdm_debug_dump_dir) {
1155                 free(tdm_debug_dump_dir);
1156                 tdm_debug_dump_dir = NULL;
1157         }
1158
1159         tdm_config_deinit();
1160
1161         pthread_mutex_unlock(&gLock);
1162
1163         TDM_INFO("done");
1164 }
1165
1166 INTERN tdm_private_display *
1167 tdm_display_get(void)
1168 {
1169         return g_private_display;
1170 }
1171
1172 INTERN int
1173 tdm_display_is_valid(tdm_display *dpy)
1174 {
1175         if (dpy != NULL && dpy == g_private_display)
1176                 return 1;
1177         return 0;
1178 }
1179
1180 INTERN int
1181 tdm_output_is_valid(tdm_output *output)
1182 {
1183         tdm_private_backend *b = NULL;
1184         tdm_private_output *o = NULL;
1185
1186         if (!output || !g_private_display)
1187                 return 0;
1188
1189         LIST_FOR_EACH_ENTRY(b, &g_private_display->backend_list, link) {
1190                 LIST_FOR_EACH_ENTRY(o, &b->output_list, link)
1191                         if (o == output)
1192                                 return 1;
1193         }
1194
1195         return 0;
1196 }
1197
1198 /* LCOV_EXCL_START */
1199 INTERN int
1200 tdm_backend_check_module_abi(tdm_private_backend *private_backend, int abimaj, int abimin)
1201 {
1202         tdm_backend_module *module = private_backend->module_data;
1203
1204         if (TDM_BACKEND_GET_ABI_MAJOR(module->abi_version) < abimaj)
1205                 return 0;
1206
1207         if (TDM_BACKEND_GET_ABI_MINOR(module->abi_version) < abimin)
1208                 return 0;
1209
1210         return 1;
1211 }
1212
1213 INTERN tdm_error
1214 tdm_display_enable_debug_module(const char*modules)
1215 {
1216         char temp[TDM_PATH_LEN];
1217         char *arg;
1218         char *end;
1219
1220         snprintf(temp, TDM_PATH_LEN, "%s", modules);
1221
1222         tdm_debug_module = 0;
1223
1224         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1225         while (arg) {
1226                 if (!strncmp(arg, "none", 4)) {
1227                         tdm_debug_module = 0;
1228                         return TDM_ERROR_NONE;
1229                 }
1230                 if (!strncmp(arg, "all", 3)) {
1231                         tdm_debug_module = 0xFFFFFFFF;
1232                         return TDM_ERROR_NONE;
1233                 }
1234                 if (!strncmp(arg, "buffer", 6))
1235                         tdm_debug_module |= TDM_DEBUG_BUFFER;
1236                 else if (!strncmp(arg, "event", 5))
1237                         tdm_debug_module |= TDM_DEBUG_EVENT;
1238                 else if (!strncmp(arg, "thread", 6))
1239                         tdm_debug_module |= TDM_DEBUG_THREAD;
1240                 else if (!strncmp(arg, "mutex", 5))
1241                         tdm_debug_module |= TDM_DEBUG_MUTEX;
1242                 else if (!strncmp(arg, "vblank", 6))
1243                         tdm_debug_module |= TDM_DEBUG_VBLANK;
1244                 else if (!strncmp(arg, "commit", 6))
1245                         tdm_debug_module |= TDM_DEBUG_COMMIT;
1246
1247                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1248         }
1249
1250         TDM_INFO("module debugging... '%s'", modules);
1251
1252         return TDM_ERROR_NONE;
1253 }
1254
1255 INTERN tdm_error
1256 tdm_display_enable_dump(tdm_private_display *private_display, const char *dump_str, char *reply, int *len)
1257 {
1258         char temp[TDM_PATH_LEN] = {0,}, temp2[TDM_PATH_LEN] = {0,};
1259         char *path = NULL, *path2;
1260         char *arg;
1261         char *end;
1262
1263         snprintf(temp2, TDM_PATH_LEN, "%s", dump_str);
1264         path2 = strtostr(temp, TDM_PATH_LEN, temp2, "@");
1265         if (!path2 || path2[0] == '\0')
1266                 path2 = TDM_DUMP_DIR;
1267         else
1268                 path2++;
1269
1270         tdm_debug_dump = 0;
1271
1272         snprintf(temp, sizeof(temp), "%s", dump_str);
1273         arg = strtok_r(temp, ",", &end);
1274         TDM_GOTO_IF_FAIL(arg != NULL, done);
1275
1276         if (!strncmp(arg, "none", 4)) {
1277                 tdm_debug_dump = 0;
1278                 TDM_SNPRINTF(reply, len, "path: %s\n", (tdm_debug_dump_dir) ? : "unknown");
1279                 if (tdm_debug_dump_dir) {
1280                         free(tdm_debug_dump_dir);
1281                         tdm_debug_dump_dir = NULL;
1282                 }
1283                 goto done;
1284         }
1285
1286         path = tdm_helper_dump_make_directory(path2, reply, len);
1287         TDM_GOTO_IF_FAIL(path != NULL, done);
1288
1289         if (!strncmp(arg, "current", 7)) {
1290                 tdm_private_backend *b = NULL;
1291                 tdm_private_output *o = NULL;
1292
1293                 if (!private_display) {
1294                         TDM_WRN("no private_display");
1295                         goto done;
1296                 }
1297
1298                 LIST_FOR_EACH_ENTRY(b, &private_display->backend_list, link) {
1299                         LIST_FOR_EACH_ENTRY(o, &b->output_list, link) {
1300                                 tdm_private_layer *l = NULL;
1301                                 LIST_FOR_EACH_ENTRY(l, &o->layer_list, link) {
1302                                         char str[TDM_PATH_LEN];
1303                                         if (l->usable || l->caps.capabilities & TDM_LAYER_CAPABILITY_VIDEO)
1304                                                 continue;
1305                                         if (!l->showing_buffer)
1306                                                 continue;
1307                                         snprintf(str, TDM_PATH_LEN, "layer_%d_%d", o->index, l->index);
1308                                         tdm_helper_dump_buffer_str(l->showing_buffer->buffer, path, str);
1309                                 }
1310                         }
1311                 }
1312
1313                 TDM_SNPRINTF(reply, len, "path: %s\n", path);
1314                 goto done;
1315         }
1316
1317         TDM_SNPRINTF(reply, len, "dump: %s\n", arg);
1318
1319         while (arg) {
1320                 if (!strncmp(arg, "all", 3)) {
1321                         tdm_debug_dump = 0xFFFFFFFF;
1322                         goto done;
1323                 } else if (!strncmp(arg, "layer", 5)) {
1324                         tdm_debug_dump |= TDM_DUMP_FLAG_LAYER;
1325                 } else if (!strncmp(arg, "pp", 2)) {
1326                         tdm_debug_dump |= TDM_DUMP_FLAG_PP;
1327                 } else if (!strncmp(arg, "capture", 7)) {
1328                         tdm_debug_dump |= TDM_DUMP_FLAG_CAPTURE;
1329                 } else if (!strncmp(arg, "window", 6)) {
1330                         tdm_debug_dump |= TDM_DUMP_FLAG_WINDOW;
1331                 } else
1332                         goto done;
1333
1334                 arg = strtok_r(NULL, ",", &end);
1335         }
1336
1337         if (tdm_debug_dump_dir)
1338                 free(tdm_debug_dump_dir);
1339
1340         tdm_debug_dump_dir = strndup(path, TDM_PATH_LEN);
1341
1342         TDM_INFO("dump... '%s'", dump_str);
1343
1344 done:
1345         if (path)
1346                 free(path);
1347
1348         return TDM_ERROR_NONE;
1349 }
1350
1351 static void
1352 _tdm_display_ttrace_vblank_cb(tdm_vblank *vblank, tdm_error error, unsigned int sequence,
1353                                                           unsigned int tv_sec, unsigned int tv_usec, void *user_data)
1354 {
1355         tdm_error ret = TDM_ERROR_NONE;
1356
1357         TDM_TRACE_MARK("VSYNC");
1358
1359         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1360         TDM_RETURN_IF_FAIL(ret == TDM_ERROR_NONE);
1361 }
1362
1363 INTERN tdm_error
1364 tdm_display_enable_ttrace_vblank(tdm_display *dpy, tdm_output *output, int enable)
1365 {
1366         tdm_private_display *private_display = dpy;
1367         tdm_private_backend *private_backend = NULL;
1368         tdm_private_output *private_output = NULL;
1369         const tdm_output_mode *mode = NULL;
1370         tdm_vblank *vblank = NULL;
1371         tdm_error ret = TDM_ERROR_NONE;
1372
1373         if (!enable) {
1374                 LIST_FOR_EACH_ENTRY(private_backend, &private_display->backend_list, link) {
1375                         LIST_FOR_EACH_ENTRY(private_output, &private_backend->output_list, link) {
1376                                 if (private_output->ttrace_vblank)
1377                                         tdm_vblank_destroy(private_output->ttrace_vblank);
1378                                 private_output->ttrace_vblank = NULL;
1379                         }
1380                 }
1381                 return TDM_ERROR_NONE;
1382         }
1383
1384         private_output = output;
1385         TDM_RETURN_VAL_IF_FAIL(private_output != NULL, TDM_ERROR_INVALID_PARAMETER);
1386
1387         if (private_output->ttrace_vblank)
1388                 return TDM_ERROR_NONE;
1389
1390         vblank = tdm_vblank_create(private_display, output, &ret);
1391         TDM_RETURN_VAL_IF_FAIL(vblank != NULL, ret);
1392
1393         ret = tdm_output_get_mode(output, &mode);
1394         TDM_GOTO_IF_FAIL(mode != NULL, enable_fail);
1395
1396         ret = tdm_vblank_set_fps(vblank, mode->vrefresh);
1397         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1398
1399         ret = tdm_vblank_set_enable_fake(vblank, 1);
1400         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1401
1402         ret = tdm_vblank_wait(vblank, 0, 0, 1, _tdm_display_ttrace_vblank_cb, NULL);
1403         TDM_GOTO_IF_FAIL(ret == TDM_ERROR_NONE, enable_fail);
1404
1405         private_output->ttrace_vblank = vblank;
1406
1407         return TDM_ERROR_NONE;
1408
1409 enable_fail:
1410         if (vblank)
1411                 tdm_vblank_destroy(vblank);
1412
1413         return ret;
1414 }
1415
1416 INTERN tdm_error
1417 tdm_display_enable_ttrace(tdm_private_display *private_display, const char *ttrace, int output_id, char *reply, int *len)
1418 {
1419         char temp[TDM_PATH_LEN];
1420         char *arg;
1421         char *end;
1422         tdm_output *output;
1423         tdm_error ret;
1424         tdm_output_type type;
1425
1426         snprintf(temp, TDM_PATH_LEN, "%s", ttrace);
1427
1428         tdm_ttrace_output = output_id;
1429         tdm_ttrace_module = 0;
1430
1431         output = tdm_display_get_output(private_display, output_id, &ret);
1432         if (!output) {
1433                 TDM_SNPRINTF(reply, len, "can't find the output_id(%d)\n", output_id);
1434                 return ret;
1435         }
1436
1437         ret = tdm_output_get_output_type(output, &type);
1438         if (ret != TDM_ERROR_NONE) {
1439                 TDM_SNPRINTF(reply, len, "can't find the type of output_id(%d)\n", output_id);
1440                 return ret;
1441         }
1442
1443         arg = strtok_r(temp, TDM_CONFIG_DELIM, &end);
1444         while (arg) {
1445                 if (!strncmp(arg, "none", 4))
1446                         tdm_ttrace_module = 0;
1447                 else if (!strncmp(arg, "all", 3))
1448                         tdm_ttrace_module = 0xFFFFFFFF;
1449                 else if (!strncmp(arg, "vsync", 5))
1450                         tdm_ttrace_module |= TDM_TTRACE_VSYNC;
1451                 else if (!strncmp(arg, "client_vblank", 13))
1452                         tdm_ttrace_module |= TDM_TTRACE_CLIENT_VBLANK;
1453                 else if (!strncmp(arg, "server_vblank", 13))
1454                         tdm_ttrace_module |= TDM_TTRACE_SERVER_VBLANK;
1455                 else if (!strncmp(arg, "vblank", 6))
1456                         tdm_ttrace_module |= TDM_TTRACE_VBLANK;
1457                 else if (!strncmp(arg, "layer", 5))
1458                         tdm_ttrace_module |= TDM_TTRACE_LAYER;
1459                 else if (!strncmp(arg, "pp", 2))
1460                         tdm_ttrace_module |= TDM_TTRACE_PP;
1461                 else if (!strncmp(arg, "capture", 7))
1462                         tdm_ttrace_module |= TDM_TTRACE_CAPTURE;
1463                 else  {
1464                         tdm_ttrace_module = 0;
1465                         tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1466                         tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1467                         TDM_SNPRINTF(reply, len, "unknown option: '%s'\n", arg);
1468                         return TDM_ERROR_NONE;
1469                 }
1470
1471                 arg = strtok_r(NULL, TDM_CONFIG_DELIM, &end);
1472         }
1473
1474         TDM_SNPRINTF(reply, len, "ttrace debugging... '%s' %x\n", ttrace, tdm_ttrace_module);
1475
1476         if (tdm_ttrace_module & TDM_TTRACE_VSYNC)
1477                 tdm_display_enable_ttrace_vblank(private_display, output, 1);
1478         else
1479                 tdm_display_enable_ttrace_vblank(private_display, NULL, 0);
1480
1481         if (tdm_ttrace_module & TDM_TTRACE_CLIENT_VBLANK)
1482                 tdm_server_enable_ttrace_client_vblank(private_display, output, 1);
1483         else
1484                 tdm_server_enable_ttrace_client_vblank(private_display, NULL, 0);
1485
1486         return TDM_ERROR_NONE;
1487 }
1488
1489 INTERN tdm_error
1490 tdm_display_enable_fps(tdm_private_display *private_display, int enable)
1491 {
1492         private_display->print_fps = enable;
1493
1494         TDM_INFO("print fps: %s", (enable) ? "enable" : "disable");
1495
1496         return TDM_ERROR_NONE;
1497 }
1498 /* LCOV_EXCL_STOP */