src/tdm_vblank.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 <boram1288.park@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 /* CAUTION:
  43  * Basically tdm vblank doesn't care about thread things.
  44  * However, to use tdm_event_loop_xxx functions, have to use the internal function.
  45  * So need to lock/unlock the mutex of private_display. And valid_vblank_list and
  46  * valid_wait_list should be protected by valid_list_lock because tdm_vblank can
  47  * be used in multi-thread.
  48  */
  49
  50 /* TDM vblank
  51  * - aligned by HW vblank
  52  * - use a tdm_event_loop_source object only.
  53  */
  54
  55 #define TDM_VBLANK_DEFAULT_VREFRESH    30
  56
  57 /* We expact "(unsigned int)(0.0016667 / 0.0016667) = 1". But it becomes 0. */
  58 #define TDM_TIME_MARGIN     0.0000001
  59
  60 #define TDM_VBLANK_UINT_MAX 4294967295U
  61 #define TDM_VBLANK_UINT_1Q  1073741823U     /* UINT_MAX / 4 */
  62 #define TDM_VBLANK_UINT_3Q  3221225471U     /* UINT_MAX / 4 * 3 */
  63
  64 /* (seq < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < last_seq) means
  65  * that the sequence value has reached the max value and started from 0 again.
  66  */
  67 #define TDM_VBLANK_SEQ_REACHED_MAX(seq, last_seq) \
  68         ((seq) < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < (last_seq))
  69
  70 #define VER(fmt, arg...)   TDM_ERR("[%p] "fmt, private_vblank, ##arg)
  71 #define VWR(fmt, arg...)   TDM_WRN("[%p] "fmt, private_vblank, ##arg)
  72 #define VIN(fmt, arg...)   do { if (tdm_debug_module & TDM_DEBUG_VBLANK) TDM_INFO("[%p] "fmt, private_vblank, ##arg); } while (0)
  73 #define VDB(fmt, arg...)   do { if (tdm_debug_module & TDM_DEBUG_VBLANK) TDM_DBG("[%p] "fmt, private_vblank, ##arg); } while (0)
  74
  75 typedef enum {
  76         VBLANK_TYPE_SW,
  77         VBLANK_TYPE_SW_FAKE,
  78         VBLANK_TYPE_HW,
  79         VBLANK_TYPE_HW_SW,
  80 } tdm_vblank_wait_type;
  81
  82 typedef enum {
  83         VBLANK_EVENT_TYPE_NONE,
  84         VBLANK_EVENT_TYPE_SW,
  85         VBLANK_EVENT_TYPE_HW,
  86 } tdm_vblank_event_type;
  87
  88 typedef struct _tdm_vblank_wait_info tdm_vblank_wait_info;
  89
  90 typedef struct _tdm_private_vblank {
  91         struct list_head valid_link;
  92
  93         double stamp;
  94         pid_t owner_tid;
  95
  96         tdm_display *dpy;
  97         tdm_output *output;
  98         tdm_output_conn_status connection;
  99         unsigned int vrefresh;
 100
 101         tdm_vblank_event_type last_type;
 102         unsigned int check_HW_or_SW;
 103         char name[TDM_NAME_LEN];
 104         unsigned int fps;
 105         unsigned int fps_changeable;
 106         unsigned int fps_fixed;
 107         int offset;
 108         unsigned int enable_fake;
 109         unsigned int ignore_global_fps;
 110         unsigned int in_create_handler;
 111
 112         double vblank_gap;
 113         unsigned int quotient;
 114
 115         int last_interval;
 116         unsigned int last_seq;
 117         double last_time;
 118
 119         unsigned int add_front;
 120         struct wl_resource *resource;
 121
 122         /* for HW */
 123         double HW_vblank_gap;
 124         struct list_head HW_wait_list;
 125
 126         /* for SW */
 127         tdm_event_loop_source *SW_timer;
 128         struct list_head SW_wait_list;
 129
 130         /* for timeout */
 131         tdm_event_loop_source *timeout_timer;
 132 } tdm_private_vblank;
 133
 134 struct _tdm_vblank_wait_info {
 135         struct list_head link;
 136         struct list_head valid_link;
 137
 138         double stamp;
 139
 140         double req_time;
 141         unsigned int interval;
 142         int hw_interval;
 143
 144         tdm_vblank_handler func;
 145         void *user_data;
 146         tdm_private_vblank *private_vblank;
 147
 148         tdm_vblank_wait_type type;
 149
 150         double target_time;
 151         unsigned int target_seq;
 152 };
 153
 154 typedef struct _tdm_vblank_create_handler_info {
 155         struct list_head link;
 156
 157         tdm_vblank_create_handler func;
 158         void *user_data;
 159 } tdm_vblank_create_handler_info;
 160
 161 /* valid_vblank_list, valid_wait_list and create_handler_list should be protected
 162  * by valid_list_lock because tdm_vblank can be used in multi-thread.
 163  */
 164 static pthread_mutex_t valid_list_lock = PTHREAD_MUTEX_INITIALIZER;
 165 static struct list_head valid_vblank_list;
 166 static struct list_head valid_wait_list;
 167 static struct list_head create_handler_list;
 168 static unsigned int vblank_list_inited;
 169 static unsigned int vblank_global_fps;
 170 static double stamp = 0;
 171
 172 static void _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data);
 173 static tdm_error _tdm_vblank_cb_timeout_SW(void *user_data);
 174 static tdm_error _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info);
 175 static void _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
 176                                                                          unsigned int tv_sec, unsigned int tv_usec,
 177                                                                          void *user_data);
 178 static void _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay);
 179 static void _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank,
 180                                                                                            pid_t *pid, const char **name);
 181
 182 #if 0
 183 static void
 184 _print_list(tdm_private_vblank *private_vblank)
 185 {
 186         tdm_vblank_wait_info *w = NULL;
 187         int count = 0;
 188
 189         LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
 190                 VIN("HW_wait(%p): type(%d) req_time(%.6f) target_time(%.6f) target_seq(%u)",
 191                         w, w->type, w->req_time, w->target_time, w->target_seq);
 192                 count++;
 193         }
 194
 195         LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
 196                 VIN("SW_wait(%p): type(%d) req_time(%.6f) target_time(%.6f) target_seq(%u)",
 197                         w, w->type, w->req_time, w->target_time, w->target_seq);
 198                 count++;
 199         }
 200
 201         if (!count)
 202                 VIN("NO_wait");
 203 }
 204 #endif
 205
 206 static int
 207 tdm_vblank_is_valid(tdm_vblank *vblank)
 208 {
 209         tdm_private_vblank *v = NULL;
 210
 211         if (vblank && vblank_list_inited) {
 212                 pthread_mutex_lock(&valid_list_lock);
 213                 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 214                         if (v == (tdm_private_vblank *)vblank) {
 215                                 pthread_mutex_unlock(&valid_list_lock);
 216                                 return 1;
 217                         }
 218                 }
 219                 pthread_mutex_unlock(&valid_list_lock);
 220
 221         }
 222         return 0;
 223 }
 224
 225 static void
 226 _tdm_vblank_valid_list_add(struct list_head *valid_link, struct list_head *valid_list)
 227 {
 228         pthread_mutex_lock(&valid_list_lock);
 229         LIST_ADDTAIL(valid_link, valid_list);
 230         pthread_mutex_unlock(&valid_list_lock);
 231 }
 232
 233 static void
 234 _tdm_vblank_valid_list_del(struct list_head *valid_link)
 235 {
 236         pthread_mutex_lock(&valid_list_lock);
 237         LIST_DEL(valid_link);
 238         pthread_mutex_unlock(&valid_list_lock);
 239 }
 240
 241 static inline void*
 242 _tdm_vblank_find_object(tdm_private_display *private_display, double vblank_stamp)
 243 {
 244         tdm_private_vblank *v = NULL;
 245
 246         pthread_mutex_lock(&valid_list_lock);
 247         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 248                 if (v->stamp == vblank_stamp) {
 249                         pthread_mutex_unlock(&valid_list_lock);
 250                         return v;
 251                 }
 252         }
 253         pthread_mutex_unlock(&valid_list_lock);
 254
 255         return NULL;
 256 }
 257
 258 static inline unsigned int
 259 _tdm_vblank_check_valid_wait(tdm_vblank_wait_info *wait_info)
 260 {
 261         tdm_vblank_wait_info *w = NULL;
 262
 263         if (!wait_info)
 264                 return 0;
 265
 266         pthread_mutex_lock(&valid_list_lock);
 267         LIST_FOR_EACH_ENTRY(w, &valid_wait_list, valid_link) {
 268                 if (w == wait_info) {
 269                         pthread_mutex_unlock(&valid_list_lock);
 270                         return 1;
 271                 }
 272         }
 273         pthread_mutex_unlock(&valid_list_lock);
 274
 275         return 0;
 276 }
 277
 278 static inline unsigned int
 279 _tdm_vblank_find_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
 280 {
 281         tdm_vblank_wait_info *w = NULL;
 282
 283         if (!wait_info)
 284                 return 0;
 285
 286         LIST_FOR_EACH_ENTRY(w, list, link) {
 287                 if (w->stamp == wait_info->stamp)
 288                         return 1;
 289         }
 290
 291         return 0;
 292 }
 293
 294 static inline void
 295 _tdm_vblank_insert_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
 296 {
 297         tdm_vblank_wait_info *w = NULL;
 298         tdm_vblank_wait_info *found = NULL;
 299
 300         if (LIST_IS_EMPTY(list)) {
 301                 LIST_ADDTAIL(&wait_info->link, list);
 302                 return;
 303         }
 304
 305         LIST_FOR_EACH_ENTRY(w, list, link) {
 306                 if (wait_info->type == VBLANK_TYPE_SW) {
 307                         if (wait_info->target_time == 0)
 308                                 TDM_NEVER_GET_HERE();
 309                         if (w->target_time <= wait_info->target_time) {
 310                                 found = w;
 311                                 continue;
 312                         }
 313                 } else {
 314                         if (w->interval <= wait_info->interval) {
 315                                 found = w;
 316                                 continue;
 317                         }
 318                 }
 319         }
 320
 321         if (found)
 322                 LIST_ADD(&wait_info->link, &found->link);
 323         else
 324                 LIST_ADDTAIL(&wait_info->link, list);
 325 }
 326
 327 static void
 328 _tdm_vblank_change_to_SW(tdm_private_vblank *private_vblank)
 329 {
 330         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 331
 332         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
 333                 LIST_DEL(&w->link);
 334
 335                 tdm_display_lock(private_vblank->dpy);
 336                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
 337                 tdm_display_unlock(private_vblank->dpy);
 338
 339                 w->type = VBLANK_TYPE_SW_FAKE;
 340                 _tdm_vblank_wait_SW(w);
 341         }
 342 }
 343
 344 static void
 345 _tdm_vblank_free_HW_wait(tdm_private_vblank *private_vblank, tdm_error error, unsigned int call_cb)
 346 {
 347         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 348
 349         if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list)) {
 350                 pid_t pid;
 351                 const char *proc_name;
 352                 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
 353                 VWR("TDM HW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
 354         }
 355
 356         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
 357                 LIST_DEL(&w->link);
 358                 _tdm_vblank_valid_list_del(&w->valid_link);
 359
 360                 tdm_display_lock(private_vblank->dpy);
 361                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
 362                 tdm_display_unlock(private_vblank->dpy);
 363
 364                 VDB("wait(%p) last(%.6f) sequence(%u) done (error:%d, call_cb:%u)",
 365                         w, (double)0.0, w->target_seq, error, call_cb);
 366
 367                 if (call_cb && w->func)
 368                         w->func(private_vblank, error, 0, 0, 0, w->user_data);
 369
 370                 free(w);
 371         }
 372 }
 373
 374 static void
 375 _tdm_vblank_update_output_info(tdm_private_vblank *private_vblank)
 376 {
 377         tdm_output *output = private_vblank->output;
 378         tdm_output_conn_status connection = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
 379         unsigned int vrefresh = TDM_VBLANK_DEFAULT_VREFRESH;
 380         const tdm_output_mode *mode = NULL;
 381         tdm_error ret;
 382
 383         ret = tdm_output_get_conn_status(output, &connection);
 384         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 385
 386         ret = tdm_output_get_mode(output, &mode);
 387         if (ret == TDM_ERROR_NONE && mode)
 388                 vrefresh = mode->vrefresh;
 389         else
 390                 VWR("mode not setted!!!");
 391
 392         private_vblank->connection = connection;
 393         private_vblank->vrefresh = vrefresh;
 394         private_vblank->HW_vblank_gap = 1.0 / private_vblank->vrefresh;
 395
 396         if (private_vblank->fps_changeable)
 397                 private_vblank->fps = vrefresh;
 398
 399         VIN("connection(%d) vrefresh(%d) fps(%d) fps_changeable(%d)",
 400                 private_vblank->connection,
 401                 private_vblank->vrefresh, private_vblank->fps, private_vblank->fps_changeable);
 402 }
 403
 404 /* LCOV_EXCL_START */
 405 static void
 406 _tdm_vblank_cb_output_change(tdm_output *output, tdm_output_change_type type,
 407                                                          tdm_value value, void *user_data)
 408 {
 409         tdm_private_vblank *private_vblank = user_data;
 410
 411         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
 412
 413         switch (type) {
 414         case TDM_OUTPUT_CHANGE_DPMS:
 415                 VIN("dpms %s", tdm_dpms_str(value.u32));
 416                 private_vblank->check_HW_or_SW = 1;
 417                 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(value.u32)) {
 418                         if (private_vblank->enable_fake)
 419                                 _tdm_vblank_change_to_SW(private_vblank);
 420                         else {
 421                                 tdm_display_lock(private_vblank->dpy);
 422                                 _tdm_vblank_timeout_timer_update(private_vblank, 0);
 423                                 tdm_display_unlock(private_vblank->dpy);
 424
 425                                 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_DPMS_OFF, 1);
 426                         }
 427                 }
 428                 break;
 429         case TDM_OUTPUT_CHANGE_CONNECTION:
 430                 if (private_vblank->connection == value.u32)
 431                         break;
 432                 VIN("output %s", tdm_status_str(value.u32));
 433                 _tdm_vblank_update_output_info(private_vblank);
 434                 private_vblank->check_HW_or_SW = 1;
 435                 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
 436                         if (private_vblank->enable_fake)
 437                                 _tdm_vblank_change_to_SW(private_vblank);
 438                         else {
 439                                 tdm_display_lock(private_vblank->dpy);
 440                                 _tdm_vblank_timeout_timer_update(private_vblank, 0);
 441                                 tdm_display_unlock(private_vblank->dpy);
 442
 443                                 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_OUTPUT_DISCONNECTED, 1);
 444                         }
 445                 }
 446                 break;
 447         default:
 448                 break;
 449         }
 450 }
 451 /* LCOV_EXCL_STOP */
 452
 453 static tdm_error
 454 _tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
 455 {
 456         tdm_private_vblank *private_vblank = vblank;
 457
 458         if (private_vblank->fps_fixed) {
 459                 VIN("fps(%u) can't be changed", private_vblank->fps);
 460                 return TDM_ERROR_NONE;
 461         }
 462
 463         private_vblank->fps_changeable = 0;
 464
 465         if (private_vblank->fps == fps)
 466                 return TDM_ERROR_NONE;
 467
 468         private_vblank->fps = fps;
 469         private_vblank->check_HW_or_SW = 1;
 470
 471         VIN("fps(%u) changed", fps);
 472
 473         return TDM_ERROR_NONE;
 474 }
 475
 476 static tdm_error
 477 _tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
 478 {
 479         tdm_private_vblank *private_vblank = vblank;
 480
 481         if (private_vblank->ignore_global_fps == ignore)
 482                 return TDM_ERROR_NONE;
 483
 484         private_vblank->ignore_global_fps = ignore;
 485         private_vblank->check_HW_or_SW = 1;
 486
 487         VIN("ignore_global_fps(%u)", private_vblank->ignore_global_fps);
 488
 489         return TDM_ERROR_NONE;
 490 }
 491
 492 EXTERN tdm_error
 493 tdm_vblank_set_client_vblank_fps(unsigned int pid, const char *name, unsigned int fps)
 494 {
 495         tdm_private_vblank *v = NULL;
 496         tdm_error ret = TDM_ERROR_NONE;
 497
 498         TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
 499         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 500
 501         TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
 502
 503         pthread_mutex_lock(&valid_list_lock);
 504         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 505                 struct wl_client *client;
 506                 pid_t client_pid = 0;
 507
 508                 if (!v->resource)
 509                         continue;
 510
 511                 client = wl_resource_get_client(v->resource);
 512                 if (!client)
 513                         continue;
 514
 515                 wl_client_get_credentials(client, &client_pid, NULL, NULL);
 516
 517                 if (client_pid != pid)
 518                         continue;
 519
 520                 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
 521                         if (strncmp(v->name, name, TDM_NAME_LEN))
 522                                 continue;
 523                 }
 524
 525                 ret = _tdm_vblank_set_fps(v, fps);
 526                 if (ret == TDM_ERROR_NONE)
 527                         TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
 528                 else
 529                         TDM_ERR("(pid:%u) '%s' fps changing failed: %d", pid, v->name, fps);
 530         }
 531         pthread_mutex_unlock(&valid_list_lock);
 532
 533         return TDM_ERROR_NONE;
 534 }
 535
 536 EXTERN tdm_error
 537 tdm_vblank_set_client_ignore_global_fps(unsigned int pid, const char *name, unsigned int ignore)
 538 {
 539         tdm_private_vblank *v = NULL;
 540         tdm_error ret = TDM_ERROR_NONE;
 541
 542         TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
 543
 544         TDM_INFO("pid: %u, name: %s, ignore: %u", pid, name, ignore);
 545
 546         pthread_mutex_lock(&valid_list_lock);
 547         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 548                 struct wl_client *client;
 549                 pid_t client_pid = 0;
 550
 551                 if (!v->resource)
 552                         continue;
 553
 554                 client = wl_resource_get_client(v->resource);
 555                 if (!client)
 556                         continue;
 557
 558                 wl_client_get_credentials(client, &client_pid, NULL, NULL);
 559
 560                 if (client_pid != pid)
 561                         continue;
 562
 563                 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
 564                         if (strncmp(v->name, name, TDM_NAME_LEN))
 565                                 continue;
 566                 }
 567
 568                 ret = _tdm_vblank_ignore_global_fps(v, ignore);
 569                 if (ret == TDM_ERROR_NONE)
 570                         TDM_INFO("(pid:%u) '%s' ignore changed: %u", pid, v->name, ignore);
 571                 else
 572                         TDM_ERR("(pid:%u) '%s' ignore changing failed: %u", pid, v->name, ignore);
 573         }
 574         pthread_mutex_unlock(&valid_list_lock);
 575
 576         return TDM_ERROR_NONE;
 577 }
 578
 579 EXTERN tdm_error
 580 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
 581 {
 582         tdm_private_vblank *v = NULL;
 583
 584         if (enable)
 585                 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 586
 587         TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
 588
 589         pthread_mutex_lock(&valid_list_lock);
 590
 591         vblank_global_fps = (enable) ? fps : 0;
 592
 593         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 594                 /* skip if vblank is created in server side */
 595                 if (!v->resource)
 596                         continue;
 597
 598                 v->check_HW_or_SW = 1;
 599         }
 600         pthread_mutex_unlock(&valid_list_lock);
 601
 602         return TDM_ERROR_NONE;
 603 }
 604
 605 static void
 606 _tdm_vblank_thread_cb_create(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
 607 {
 608         tdm_thread_cb_vblank_create *vblank_create = (tdm_thread_cb_vblank_create *)cb_base;
 609         tdm_vblank_create_handler_info *ch_info = user_data;
 610         tdm_private_vblank *private_vblank;
 611
 612         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 613
 614         assert(ch_info != NULL);
 615
 616         private_vblank = _tdm_vblank_find_object(private_display, vblank_create->vblank_stamp);
 617         if (!private_vblank) {
 618                 TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_create->vblank_stamp);
 619                 return;
 620         }
 621
 622         private_vblank->in_create_handler = 1;
 623         tdm_display_unlock(private_display);
 624         ch_info->func(private_vblank, ch_info->user_data);
 625         tdm_display_lock(private_display);
 626         private_vblank->in_create_handler = 0;
 627 }
 628
 629 static tdm_error
 630 _tdm_vblank_call_thread_cb(tdm_private_vblank *private_vblank)
 631 {
 632         tdm_thread_cb_vblank_create vblank_create;
 633         tdm_error ret;
 634
 635         memset(&vblank_create, 0, sizeof vblank_create);
 636         vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
 637         vblank_create.base.length = sizeof vblank_create;
 638         vblank_create.base.object_stamp = 1;
 639         vblank_create.base.data = NULL;
 640         vblank_create.base.sync = 0;
 641         vblank_create.vblank_stamp = private_vblank->stamp;
 642
 643         ret = tdm_thread_cb_call(private_vblank->dpy, &vblank_create.base, 1);
 644         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 645
 646         return TDM_ERROR_NONE;
 647 }
 648
 649 EXTERN tdm_error
 650 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 651 {
 652         tdm_vblank_create_handler_info *ch_info = NULL;
 653         tdm_error ret;
 654
 655         TDM_RETURN_VAL_IF_FAIL(dpy != NULL, TDM_ERROR_INVALID_PARAMETER);
 656         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 657
 658         pthread_mutex_lock(&valid_list_lock);
 659
 660         LIST_FOR_EACH_ENTRY(ch_info, &create_handler_list, link) {
 661                 if (ch_info->func == func && ch_info->user_data == user_data) {
 662                         TDM_ERR("can't be added twice");
 663                         pthread_mutex_unlock(&valid_list_lock);
 664                         return TDM_ERROR_BAD_REQUEST;
 665                 }
 666         }
 667
 668         ch_info = calloc(1, sizeof *ch_info);
 669         if (!ch_info) {
 670                 TDM_ERR("alloc failed: %m");
 671                 pthread_mutex_unlock(&valid_list_lock);
 672                 return TDM_ERROR_OUT_OF_MEMORY;
 673         }
 674
 675         tdm_display_lock(dpy);
 676         ret = tdm_thread_cb_add(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
 677         tdm_display_unlock(dpy);
 678
 679         if (ret != TDM_ERROR_NONE) {
 680                 TDM_ERR("tdm_thread_cb_add failed");
 681                 free(ch_info);
 682                 pthread_mutex_unlock(&valid_list_lock);
 683                 return ret;
 684         }
 685
 686         ch_info->func = func;
 687         ch_info->user_data = user_data;
 688
 689         LIST_ADDTAIL(&ch_info->link, &create_handler_list);
 690
 691         pthread_mutex_unlock(&valid_list_lock);
 692
 693         return TDM_ERROR_NONE;
 694 }
 695
 696 EXTERN void
 697 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 698 {
 699         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 700
 701         TDM_RETURN_IF_FAIL(dpy != NULL);
 702         TDM_RETURN_IF_FAIL(func != NULL);
 703
 704         tdm_display_lock(dpy);
 705         pthread_mutex_lock(&valid_list_lock);
 706         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 707                 if (ch_info->func != func || ch_info->user_data != user_data)
 708                         continue;
 709
 710                 tdm_thread_cb_remove(dpy, TDM_THREAD_CB_VBLANK_CREATE, NULL, _tdm_vblank_thread_cb_create, ch_info);
 711
 712                 LIST_DEL(&ch_info->link);
 713                 free(ch_info);
 714                 pthread_mutex_unlock(&valid_list_lock);
 715                 tdm_display_unlock(dpy);
 716                 return;
 717         }
 718         pthread_mutex_unlock(&valid_list_lock);
 719         tdm_display_unlock(dpy);
 720 }
 721
 722 static void*
 723 _tdm_vblank_find_display(tdm_private_display *private_display, double stamp)
 724 {
 725         return private_display;
 726 }
 727
 728 INTERN tdm_error
 729 tdm_vblank_init(tdm_display *dpy)
 730 {
 731         if (vblank_list_inited)
 732                 return TDM_ERROR_NONE;
 733
 734         LIST_INITHEAD(&valid_vblank_list);
 735         LIST_INITHEAD(&valid_wait_list);
 736         LIST_INITHEAD(&create_handler_list);
 737
 738         tdm_thread_cb_set_find_func(TDM_THREAD_CB_VBLANK_SW, _tdm_vblank_find_object);
 739         tdm_thread_cb_set_find_func(TDM_THREAD_CB_VBLANK_CREATE, _tdm_vblank_find_display);
 740
 741         vblank_list_inited = 1;
 742
 743         return TDM_ERROR_NONE;
 744 }
 745
 746 INTERN void
 747 tdm_vblank_deinit(tdm_display *dpy)
 748 {
 749         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 750
 751         if (!vblank_list_inited)
 752                 return;
 753
 754         if (!LIST_IS_EMPTY(&valid_vblank_list))
 755                 TDM_NEVER_GET_HERE();
 756
 757         if (!LIST_IS_EMPTY(&valid_wait_list))
 758                 TDM_NEVER_GET_HERE();
 759
 760         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 761                 LIST_DEL(&ch_info->link);
 762                 free(ch_info);
 763         }
 764
 765         vblank_list_inited = 0;
 766 }
 767
 768 EXTERN tdm_vblank *
 769 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
 770 {
 771         tdm_private_vblank *private_vblank;
 772         tdm_error ret;
 773
 774         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(dpy != NULL, TDM_ERROR_INVALID_PARAMETER, NULL);
 775         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(output != NULL, TDM_ERROR_INVALID_PARAMETER, NULL);
 776
 777         if (error)
 778                 *error = TDM_ERROR_NONE;
 779
 780         private_vblank = calloc(1, sizeof * private_vblank);
 781         if (!private_vblank) {
 782                 /* LCOV_EXCL_START */
 783                 if (error)
 784                         *error = TDM_ERROR_OUT_OF_MEMORY;
 785                 TDM_ERR("alloc failed");
 786                 return NULL;
 787                 /* LCOV_EXCL_STOP */
 788         }
 789
 790         ret = tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
 791         if (ret != TDM_ERROR_NONE) {
 792                 free(private_vblank);
 793                 if (error)
 794                         *error = TDM_ERROR_OPERATION_FAILED;
 795                 TDM_ERR("tdm_output_add_change_handler failed");
 796                 return NULL;
 797         }
 798
 799         private_vblank->stamp = ++stamp;
 800         private_vblank->owner_tid = syscall(SYS_gettid);
 801         private_vblank->dpy = dpy;
 802         private_vblank->output = output;
 803         private_vblank->check_HW_or_SW = 1;
 804         private_vblank->fps_changeable = 1;
 805         private_vblank->last_interval = -1;
 806
 807         _tdm_vblank_update_output_info(private_vblank);
 808
 809         strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
 810         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 811
 812         LIST_INITHEAD(&private_vblank->HW_wait_list);
 813         LIST_INITHEAD(&private_vblank->SW_wait_list);
 814
 815         _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
 816
 817         VIN("created. vrefresh(%d) connection(%d)",
 818                 private_vblank->vrefresh, private_vblank->connection);
 819
 820         tdm_display_lock(private_vblank->dpy);
 821         _tdm_vblank_call_thread_cb(private_vblank);
 822         tdm_display_unlock(private_vblank->dpy);
 823
 824         return (tdm_vblank *)private_vblank;
 825 }
 826
 827 EXTERN void
 828 tdm_vblank_destroy(tdm_vblank *vblank)
 829 {
 830         tdm_private_vblank *private_vblank = vblank;
 831         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 832
 833         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
 834
 835         if (private_vblank->in_create_handler) {
 836                 TDM_ERR("NOT allowed to be called in a create handler");
 837                 return;
 838         }
 839
 840         _tdm_vblank_valid_list_del(&private_vblank->valid_link);
 841
 842         if (private_vblank->SW_timer) {
 843                 tdm_display_lock(private_vblank->dpy);
 844                 tdm_thread_cb_remove(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
 845                 tdm_event_loop_source_remove(private_vblank->SW_timer);
 846                 tdm_display_unlock(private_vblank->dpy);
 847         }
 848
 849         tdm_output_remove_change_handler(private_vblank->output,
 850                                                                          _tdm_vblank_cb_output_change, private_vblank);
 851
 852         _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
 853
 854         if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
 855                 pid_t pid;
 856                 const char *proc_name;
 857                 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
 858                 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
 859         }
 860
 861         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
 862                 LIST_DEL(&w->link);
 863                 _tdm_vblank_valid_list_del(&w->valid_link);
 864                 free(w);
 865         }
 866
 867         if (private_vblank->timeout_timer) {
 868                 tdm_display_lock(private_vblank->dpy);
 869                 tdm_event_loop_source_remove(private_vblank->timeout_timer);
 870                 tdm_display_unlock(private_vblank->dpy);
 871         }
 872
 873         VIN("destroyed");
 874
 875         free(private_vblank);
 876 }
 877
 878 EXTERN tdm_output *
 879 tdm_vblank_get_output(tdm_vblank *vblank, tdm_error *error)
 880 {
 881         tdm_private_vblank *private_vblank = vblank;
 882         tdm_error ret = TDM_ERROR_NONE;
 883
 884         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER, NULL);
 885
 886         if (error)
 887                 *error = TDM_ERROR_NONE;
 888
 889         return private_vblank->output;
 890 }
 891
 892 EXTERN tdm_error
 893 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
 894 {
 895         tdm_private_vblank *private_vblank = vblank;
 896         struct wl_client *client;
 897
 898         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 899         TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
 900
 901         if (!private_vblank->resource) {
 902                 *pid = 0;
 903                 return TDM_ERROR_NONE;
 904         }
 905
 906         client = wl_resource_get_client(private_vblank->resource);
 907         if (!client) {
 908                 *pid = 0;
 909                 return TDM_ERROR_NONE;
 910         }
 911
 912         wl_client_get_credentials(client, pid, NULL, NULL);
 913
 914         return TDM_ERROR_NONE;
 915 }
 916
 917 EXTERN tdm_error
 918 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
 919 {
 920         tdm_private_vblank *private_vblank = vblank;
 921
 922         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 923
 924         if (!name)
 925                 name = TDM_VBLANK_DEFAULT_NAME;
 926
 927         strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
 928         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 929
 930         VIN("name(%s)", name);
 931
 932         return TDM_ERROR_NONE;
 933 }
 934
 935 EXTERN tdm_error
 936 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
 937 {
 938         tdm_private_vblank *private_vblank = vblank;
 939
 940         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 941         TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
 942
 943         *name = (const char*)private_vblank->name;
 944
 945         return TDM_ERROR_NONE;
 946 }
 947
 948 EXTERN tdm_error
 949 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
 950 {
 951         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 952         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 953
 954         return _tdm_vblank_set_fps(vblank, fps);
 955 }
 956
 957 EXTERN tdm_error
 958 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
 959 {
 960         tdm_private_vblank *private_vblank = vblank;
 961
 962         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 963         TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
 964
 965         *fps = private_vblank->fps;
 966
 967         return TDM_ERROR_NONE;
 968 }
 969
 970 EXTERN tdm_error
 971 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
 972 {
 973         tdm_private_vblank *private_vblank = vblank;
 974
 975         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 976         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 977
 978         private_vblank->fps_changeable = 0;
 979         private_vblank->fps_fixed = 1;
 980
 981         if (private_vblank->fps == fps)
 982                 return TDM_ERROR_NONE;
 983
 984         private_vblank->fps = fps;
 985         private_vblank->check_HW_or_SW = 1;
 986
 987         VIN("fps(%u) fixed", fps);
 988
 989         return TDM_ERROR_NONE;
 990 }
 991
 992 EXTERN tdm_error
 993 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
 994 {
 995         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 996
 997         return _tdm_vblank_ignore_global_fps(vblank, ignore);
 998 }
 999
1000 EXTERN tdm_error
1001 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
1002 {
1003         tdm_private_vblank *private_vblank = vblank;
1004
1005         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1006         TDM_RETURN_VAL_IF_FAIL(offset >= 0, TDM_ERROR_INVALID_PARAMETER);
1007
1008         if (private_vblank->offset == offset)
1009                 return TDM_ERROR_NONE;
1010
1011         private_vblank->offset = offset;
1012         private_vblank->check_HW_or_SW = 1;
1013
1014         VIN("offset(%u)", private_vblank->offset);
1015
1016         return TDM_ERROR_NONE;
1017 }
1018
1019 EXTERN tdm_error
1020 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
1021 {
1022         tdm_private_vblank *private_vblank = vblank;
1023
1024         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1025         TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
1026
1027         *offset = private_vblank->offset;
1028
1029         return TDM_ERROR_NONE;
1030 }
1031
1032 EXTERN tdm_error
1033 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
1034 {
1035         tdm_private_vblank *private_vblank = vblank;
1036
1037         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1038
1039         if (private_vblank->enable_fake == enable_fake)
1040                 return TDM_ERROR_NONE;
1041
1042         private_vblank->enable_fake = enable_fake;
1043
1044         VIN("enable_fake(%u)", private_vblank->enable_fake);
1045
1046         return TDM_ERROR_NONE;
1047 }
1048
1049 EXTERN tdm_error
1050 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
1051 {
1052         tdm_private_vblank *private_vblank = vblank;
1053
1054         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1055         TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
1056
1057         *enable_fake = private_vblank->enable_fake;
1058
1059         return TDM_ERROR_NONE;
1060 }
1061
1062 static tdm_error
1063 _tdm_vblank_timeout_timer_cb(void *user_data)
1064 {
1065         tdm_private_vblank *private_vblank = user_data;
1066         tdm_vblank_wait_info *w = NULL;
1067         pid_t pid;
1068         const char *proc_name;
1069
1070         TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
1071
1072         _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
1073
1074         VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
1075         VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
1076
1077         LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
1078                 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
1079                         w, w->req_time, w->target_seq, w->interval, w->hw_interval);
1080                 tdm_output_vblank_print_wait_information(private_vblank->output, w);
1081         }
1082
1083         LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
1084                 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
1085                         w, w->req_time, w->target_time, w->target_seq, w->interval);
1086         }
1087
1088         return TDM_ERROR_NONE;
1089 }
1090
1091 static void
1092 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
1093 {
1094         tdm_error ret;
1095
1096         if (!private_vblank->timeout_timer) {
1097                 private_vblank->timeout_timer =
1098                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1099                                                                                          _tdm_vblank_timeout_timer_cb,
1100                                                                                          private_vblank,
1101                                                                                          &ret);
1102                 if (!private_vblank->timeout_timer) {
1103                         VER("couldn't add timer");
1104                         return;
1105                 }
1106                 VIN("Create Timeout timer");
1107         }
1108
1109         ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1110         if (ret != TDM_ERROR_NONE) {
1111                 VER("couldn't update timer");
1112                 return;
1113         }
1114
1115         if (ms_delay != 0)
1116                 VDB("timeout timer updated");
1117         else
1118                 VDB("timeout timer disabled");
1119 }
1120
1121 static tdm_error
1122 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1123 {
1124         tdm_vblank_wait_info *first_wait_info = NULL;
1125         double curr, target;
1126         int ms_delay;
1127         tdm_error ret;
1128
1129         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1130                 VER("no wait_info");
1131                 return TDM_ERROR_OPERATION_FAILED;
1132         }
1133
1134         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1135         curr = tdm_helper_get_time();
1136         target = first_wait_info->target_time;
1137
1138         /* ms_delay should be more that 1 */
1139         if (target < curr)
1140                 ms_delay = 1;
1141         else
1142                 ms_delay = ceil((target - curr) * 1000.0);
1143
1144         if (ms_delay < 1)
1145                 ms_delay = 1;
1146
1147         if (ms_delay > 5000)
1148                 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1149         else
1150                 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1151
1152         tdm_display_lock(private_vblank->dpy);
1153
1154         if (!private_vblank->SW_timer) {
1155                 private_vblank->SW_timer =
1156                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1157                                                                                          _tdm_vblank_cb_timeout_SW,
1158                                                                                          private_vblank,
1159                                                                                          &ret);
1160                 if (!private_vblank->SW_timer) {
1161                         tdm_display_unlock(private_vblank->dpy);
1162                         VER("couldn't add timer");
1163                         return ret;
1164                 }
1165
1166                 ret = tdm_thread_cb_add(private_vblank, TDM_THREAD_CB_VBLANK_SW, NULL, _tdm_vblank_cb_vblank_SW, NULL);
1167                 if (ret != TDM_ERROR_NONE) {
1168                         tdm_event_loop_source_remove(private_vblank->SW_timer);
1169                         private_vblank->SW_timer = NULL;
1170                         tdm_display_unlock(private_vblank->dpy);
1171                         VER("couldn't add thread_cb");
1172                         return ret;
1173                 }
1174
1175                 VIN("Create SW timer");
1176         }
1177
1178         private_vblank->last_interval = ms_delay;
1179
1180         ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1181         if (ret != TDM_ERROR_NONE) {
1182                 /* LCOV_EXCL_START */
1183                 tdm_display_unlock(private_vblank->dpy);
1184                 VER("couldn't update timer");
1185                 return ret;
1186                 /* LCOV_EXCL_STOP */
1187         }
1188
1189         tdm_display_unlock(private_vblank->dpy);
1190
1191         return TDM_ERROR_NONE;
1192 }
1193
1194 static void
1195 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1196                                                  unsigned int tv_sec, unsigned int tv_usec,
1197                                                  void *user_data)
1198 {
1199         tdm_vblank_wait_info *wait_info = user_data;
1200         tdm_private_vblank *private_vblank;
1201
1202         if (!_tdm_vblank_check_valid_wait(wait_info)) {
1203                 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1204                 return;
1205         }
1206
1207         private_vblank = wait_info->private_vblank;
1208         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1209
1210         assert(private_vblank->owner_tid == syscall(SYS_gettid));
1211
1212         if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1213                 VER("can't find wait(%p)", wait_info);
1214                 return;
1215         }
1216
1217         if (wait_info->type == VBLANK_TYPE_HW_SW) {
1218                 tdm_error ret;
1219
1220                 LIST_DEL(&wait_info->link);
1221
1222                 /* kernel sends the wrong time of first vblank event. and the time of
1223                  * second vblank is correct.
1224                  */
1225                 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1226                 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1227
1228                 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1229
1230                 ret = _tdm_vblank_sw_timer_update(private_vblank);
1231
1232                 /* wait_info will be freed in _tdm_vblank_cb_timeout_SW() */
1233                 if (ret == TDM_ERROR_NONE) {
1234                         VIN("wait(%p) SW timer", wait_info);
1235                         return;
1236                 }
1237
1238                 VER("couldn't update sw timer");
1239         }
1240
1241         tdm_display_lock(private_vblank->dpy);
1242         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1243         tdm_display_unlock(private_vblank->dpy);
1244
1245         LIST_DEL(&wait_info->link);
1246         _tdm_vblank_valid_list_del(&wait_info->valid_link);
1247
1248         /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1249          * We need to prohibit that last_time becomes zero because "last_time == 0" means
1250          * that a tdm_vblank object is just created and doesn't have the first vblank event.
1251          * If last_time becomes 0, it would make issue.
1252          */
1253         if (tv_sec == 0 && tv_usec == 0) {
1254                 double curr = tdm_helper_get_time();
1255                 tv_sec = TDM_TIME_SEC(curr);
1256                 tv_usec = TDM_TIME_USEC(curr);
1257         }
1258
1259         private_vblank->last_seq = wait_info->target_seq;
1260         private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1261
1262         VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1263
1264         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1265                 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1266
1267         if (wait_info->func)
1268                 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1269                                                 tv_sec, tv_usec, wait_info->user_data);
1270
1271         free(wait_info);
1272 }
1273
1274 static tdm_error
1275 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1276 {
1277         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1278         int hw_interval;
1279         tdm_error ret;
1280
1281         if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1282                 VIN("Use HW vblank");
1283                 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1284         }
1285
1286         _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1287
1288         if (private_vblank->last_time == 0) {
1289                 hw_interval = wait_info->interval * private_vblank->quotient;
1290
1291                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1292                 private_vblank->last_seq = 0;
1293                 private_vblank->last_time = tdm_helper_get_time();
1294
1295                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1296                 wait_info->target_seq = 1;
1297
1298                 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1299                         wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1300         } else {
1301                 double last, prev, req, curr, target;
1302                 unsigned int skip;
1303
1304                 last = private_vblank->last_time;
1305                 req = wait_info->req_time;
1306
1307                 /* make sure that req time is bigger than last. */
1308                 if (req < last)
1309                         req = last;
1310
1311                 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1312                 prev = last + private_vblank->vblank_gap * skip;
1313
1314                 curr = tdm_helper_get_time();
1315                 target = last;
1316                 while (target < curr)
1317                         target += (private_vblank->vblank_gap * wait_info->interval);
1318
1319                 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1320
1321                 wait_info->target_seq = private_vblank->last_seq;
1322                 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1323
1324                 if (hw_interval > 300)
1325                         VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1326                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1327                                 skip, hw_interval, wait_info->target_seq);
1328                 else
1329                         VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1330                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1331                                 skip, hw_interval, wait_info->target_seq);
1332         }
1333
1334         private_vblank->last_interval = hw_interval;
1335         wait_info->hw_interval = hw_interval;
1336
1337         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1338                 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1339
1340         if (private_vblank->add_front)
1341                 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1342                                                                                            _tdm_vblank_cb_vblank_HW, wait_info);
1343         else
1344                 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1345                                                                          _tdm_vblank_cb_vblank_HW, wait_info);
1346
1347         if (ret != TDM_ERROR_NONE) {
1348                 LIST_DEL(&wait_info->link);
1349                 return ret;
1350         }
1351
1352         VDB("wait(%p) waiting", wait_info);
1353
1354         return TDM_ERROR_NONE;
1355 }
1356
1357 static void
1358 _tdm_vblank_cb_vblank_SW(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
1359 {
1360         tdm_private_vblank *private_vblank = object;
1361         tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1362
1363         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
1364
1365         assert(private_vblank->owner_tid == syscall(SYS_gettid));
1366
1367         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1368                 VER("no wait_info");
1369                 return;
1370         }
1371
1372         if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1373                 TDM_NEVER_GET_HERE();
1374
1375         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1376         TDM_RETURN_IF_FAIL(first_wait_info != NULL);
1377
1378         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1379
1380         if (private_vblank->last_seq >= first_wait_info->target_seq)
1381                 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1382
1383         private_vblank->last_seq = first_wait_info->target_seq;
1384         private_vblank->last_time = first_wait_info->target_time;
1385
1386         VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1387
1388         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1389                 if (w->target_time != first_wait_info->target_time)
1390                         break;
1391
1392                 LIST_DEL(&w->link);
1393                 _tdm_vblank_valid_list_del(&w->valid_link);
1394
1395                 if (w->func) {
1396                         tdm_display_unlock(private_vblank->dpy);
1397                         w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1398                                         TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1399                                         w->user_data);
1400                         tdm_display_lock(private_vblank->dpy);
1401                 }
1402
1403                 free(w);
1404         }
1405 }
1406
1407 static tdm_error
1408 _tdm_vblank_cb_timeout_SW(void *user_data)
1409 {
1410         tdm_private_vblank *private_vblank = user_data;
1411         tdm_thread_cb_vblank_sw vblank_sw;
1412         tdm_error ret;
1413
1414         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1415
1416         VIN("timeout_SW -> thread-cb");
1417
1418         memset(&vblank_sw, 0, sizeof vblank_sw);
1419         vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1420         vblank_sw.base.length = sizeof vblank_sw;
1421         vblank_sw.base.object_stamp = private_vblank->stamp;
1422         vblank_sw.base.data = NULL;
1423         vblank_sw.base.sync = 0;
1424
1425         ret = tdm_thread_cb_call(private_vblank, &vblank_sw.base, 1);
1426         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1427
1428         return TDM_ERROR_NONE;
1429 }
1430
1431 static tdm_error
1432 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1433 {
1434         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1435         tdm_error ret;
1436         double last, prev, req, curr, target;
1437         unsigned int skip;
1438
1439         if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1440                 tdm_output_dpms dpms;
1441
1442                 tdm_output_get_dpms(private_vblank->output, &dpms);
1443
1444                 VIN("Use SW vblank. connection(%s), dpms(%s), vrefresh(%d), fps(%d), offset(%d)",
1445                         tdm_status_str(private_vblank->connection), tdm_dpms_str(dpms),
1446                         private_vblank->vrefresh, private_vblank->fps, private_vblank->offset);
1447                 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1448         }
1449
1450         if (private_vblank->last_time == 0) {
1451                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1452                 private_vblank->last_seq = 0;
1453                 private_vblank->last_time = tdm_helper_get_time() - private_vblank->vblank_gap;
1454
1455                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1456                 wait_info->target_seq = 1;
1457         }
1458
1459         last = private_vblank->last_time;
1460         req = wait_info->req_time;
1461
1462         /* make sure that req time is bigger than last. */
1463         if (req < last)
1464                 req = last;
1465
1466         skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1467         prev = last + private_vblank->vblank_gap * skip;
1468
1469         curr = tdm_helper_get_time();
1470         target = prev + private_vblank->vblank_gap * wait_info->interval;
1471
1472         while (target < curr)
1473                 target += private_vblank->vblank_gap;
1474
1475         wait_info->target_seq = private_vblank->last_seq;
1476         wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1477
1478         wait_info->target_time = target + (double)(private_vblank->offset) / 1000;
1479
1480         VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1481                 wait_info, last, req - last, prev - last, curr - last,
1482                 target, target - last, skip, wait_info->target_seq);
1483
1484         _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1485
1486         ret = _tdm_vblank_sw_timer_update(private_vblank);
1487         if (ret != TDM_ERROR_NONE) {
1488                 /* LCOV_EXCL_START */
1489                 LIST_DEL(&wait_info->link);
1490                 VER("couldn't update sw timer");
1491                 return ret;
1492                 /* LCOV_EXCL_STOP */
1493         }
1494
1495         return TDM_ERROR_NONE;
1496 }
1497
1498 EXTERN tdm_error
1499 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1500                                 unsigned int interval, tdm_vblank_handler func, void *user_data)
1501 {
1502         tdm_private_vblank *private_vblank = vblank;
1503         tdm_vblank_wait_info *wait_info;
1504         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1505         unsigned int fps;
1506         tdm_error ret;
1507
1508         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1509         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1510         TDM_RETURN_VAL_IF_FAIL(interval > 0, TDM_ERROR_INVALID_PARAMETER);
1511
1512         if (private_vblank->in_create_handler) {
1513                 TDM_ERR("NOT allowed to be called in a create handler");
1514                 return TDM_ERROR_BAD_REQUEST;
1515         }
1516
1517         if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1518                 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1519                 return TDM_ERROR_BAD_REQUEST;
1520         }
1521
1522         tdm_output_get_dpms(private_vblank->output, &dpms);
1523
1524         if (!private_vblank->enable_fake) {
1525                 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1526                         VER("can't wait a vblank: output disconnected");
1527                         return TDM_ERROR_OUTPUT_DISCONNECTED;
1528                 }
1529                 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1530                         VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1531                         return TDM_ERROR_DPMS_OFF;
1532                 }
1533         }
1534
1535         wait_info = calloc(1, sizeof * wait_info);
1536         if (!wait_info) {
1537                 /* LCOV_EXCL_START */
1538                 VER("alloc failed");
1539                 return TDM_ERROR_OUT_OF_MEMORY;
1540                 /* LCOV_EXCL_STOP */
1541         }
1542         _tdm_vblank_update_output_info(private_vblank);
1543
1544         /* set request time to current time if 0. This function seems to be called in server side. */
1545         if (req_sec == 0 && req_usec == 0) {
1546                 double curr = tdm_helper_get_time();
1547                 req_sec = TDM_TIME_SEC(curr);
1548                 req_usec = TDM_TIME_USEC(curr);
1549         }
1550
1551         LIST_INITHEAD(&wait_info->link);
1552
1553         _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1554
1555         wait_info->stamp = ++stamp;
1556         wait_info->req_time = TDM_TIME(req_sec, req_usec);
1557         wait_info->interval = interval;
1558         wait_info->func = func;
1559         wait_info->user_data = user_data;
1560         wait_info->private_vblank = private_vblank;
1561
1562         if (!private_vblank->resource ||
1563                 private_vblank->ignore_global_fps ||
1564                 vblank_global_fps == 0 ||
1565                 private_vblank->fps < vblank_global_fps)
1566                 fps = private_vblank->fps;
1567         else
1568                 fps = vblank_global_fps;
1569
1570         if (private_vblank->check_HW_or_SW) {
1571                 private_vblank->check_HW_or_SW = 0;
1572                 private_vblank->vblank_gap = 1.0 / fps;
1573                 private_vblank->quotient = private_vblank->vrefresh / fps;
1574         }
1575
1576         /* 1) if fps != factor of vrefresh, SW timer
1577          * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1578          * 3) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1579          * 4) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1580          * In case of 1), we really don't need to align with HW vblank.
1581          */
1582         if (private_vblank->vrefresh % fps)
1583                 wait_info->type = VBLANK_TYPE_SW;
1584         else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1585                          private_vblank->connection != TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
1586                 wait_info->type = VBLANK_TYPE_SW_FAKE;
1587         else if (private_vblank->offset == 0)
1588                 wait_info->type = VBLANK_TYPE_HW;
1589         else
1590                 wait_info->type = VBLANK_TYPE_HW_SW;
1591
1592         if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1593                 ret = _tdm_vblank_wait_SW(wait_info);
1594                 if (ret != TDM_ERROR_NONE)
1595                         TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1596         } else {
1597                 ret = _tdm_vblank_wait_HW(wait_info);
1598                 if (ret != TDM_ERROR_NONE)
1599                         TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1600
1601                 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1602                         ret = _tdm_vblank_wait_SW(wait_info);
1603                         if (ret != TDM_ERROR_NONE)
1604                                 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1605                 }
1606         }
1607
1608         if (ret != TDM_ERROR_NONE) {
1609                 /* LCOV_EXCL_START */
1610                 LIST_DEL(&wait_info->link);
1611                 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1612
1613                 tdm_display_lock(private_vblank->dpy);
1614                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1615                 tdm_display_unlock(private_vblank->dpy);
1616
1617                 free(wait_info);
1618                 return ret;
1619                 /* LCOV_EXCL_STOP */
1620         }
1621
1622         tdm_display_lock(private_vblank->dpy);
1623         _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1624         tdm_display_unlock(private_vblank->dpy);
1625
1626         return TDM_ERROR_NONE;
1627 }
1628
1629 EXTERN tdm_error
1630 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1631                                         unsigned int sequence, tdm_vblank_handler func, void *user_data)
1632 {
1633         tdm_private_vblank *private_vblank = vblank;
1634         unsigned int interval;
1635
1636         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1637         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1638
1639         /* if the sequence of vblank reaches the max value, sequence can be 0. */
1640
1641         if (private_vblank->last_seq == 0) {
1642                 VWR("can't calculate interval with sequence(%u)", sequence);
1643                 interval = 1;
1644         } else if (sequence > private_vblank->last_seq ||
1645                            TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1646                 double last, curr, seq_target;
1647
1648                 last = private_vblank->last_time;
1649                 curr = tdm_helper_get_time();
1650                 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1651
1652                 /* If target is old or too close(1ms) to current, we call the handler immediately.
1653                  * 2ms? it seems too much.
1654                  */
1655                 if (seq_target < curr) {
1656                         func(vblank, TDM_ERROR_NONE, sequence,
1657                                  TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1658                                  user_data);
1659                         return TDM_ERROR_NONE;
1660                 } else if ((seq_target - curr) < 0.001) {  /* 1ms */
1661                         func(vblank, TDM_ERROR_NONE, sequence,
1662                                  TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1663                                  user_data);
1664                         return TDM_ERROR_NONE;
1665                 }
1666
1667                 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1668         } else {
1669                 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1670                 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1671                 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1672                          TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1673                          user_data);
1674                 return TDM_ERROR_NONE;
1675         }
1676
1677         return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1678 }
1679
1680 /* LCOV_EXCL_START */
1681 INTERN tdm_error
1682 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1683 {
1684         tdm_private_vblank *private_vblank = vblank;
1685
1686         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1687
1688         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1689
1690         if (private_vblank->add_front == add_front)
1691                 return TDM_ERROR_NONE;
1692
1693         private_vblank->add_front = add_front;
1694
1695         return TDM_ERROR_NONE;
1696 }
1697 /* LCOV_EXCL_STOP */
1698
1699 INTERN tdm_error
1700 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1701 {
1702         tdm_private_vblank *private_vblank = vblank;
1703
1704         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1705         TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1706
1707         private_vblank->resource = resource;
1708
1709         return TDM_ERROR_NONE;
1710 }
1711
1712 INTERN double
1713 tdm_vblank_get_stamp(tdm_vblank *vblank)
1714 {
1715         tdm_private_vblank *private_vblank = vblank;
1716
1717         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1718
1719         return private_vblank->stamp;
1720 }
1721
1722 static unsigned int
1723 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1724 {
1725         tdm_vblank_wait_info *wait_info = NULL;
1726         unsigned int count = 0;
1727
1728         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1729                 count++;
1730         }
1731
1732         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1733                 count++;
1734         }
1735
1736         return count;
1737 }
1738
1739 static void
1740 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1741 {
1742         struct wl_client *client;
1743
1744         if (!private_vblank->resource)
1745                 goto no_client;
1746
1747         client = wl_resource_get_client(private_vblank->resource);
1748         if (!client)
1749                 goto no_client;
1750
1751         wl_client_get_credentials(client, pid, NULL, NULL);
1752         *name = tdm_server_get_client_name(*pid);
1753
1754         return;
1755
1756 no_client:
1757         *pid = 0;
1758         *name = NULL;
1759         return;
1760 }
1761
1762 /* LCOV_EXCL_START */
1763 INTERN void
1764 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1765 {
1766         tdm_private_vblank *v = NULL;
1767         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1768         tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1769
1770         if (output)
1771                 tdm_output_get_dpms(output, &dpms);
1772
1773         TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1774         TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1775         TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1776         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1777         TDM_SNPRINTF(reply, len, "Name                 Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1778         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1779
1780         pthread_mutex_lock(&valid_list_lock);
1781         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1782                 const char *proc_name = NULL;
1783                 pid_t pid = 0;
1784                 unsigned int count;
1785
1786                 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1787
1788                 count = _tdm_vblank_get_waiting_count(v);
1789
1790                 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1791                 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1792                 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1793                 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1794                 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1795                 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1796                 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1797                 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1798                 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1799                 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1800         }
1801         pthread_mutex_unlock(&valid_list_lock);
1802
1803         TDM_SNPRINTF(reply, len, "\n");
1804 }
1805 /* LCOV_EXCL_STOP */
1806