src/tdm.c

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