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 <sc1.lim@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm_private.h"
  41
  42 /* 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 and valid_wait_list should be protected by valid_list_lock because
 162  * tdm_vblank can be used in multi-thread.
 163  */
 164 static pthread_mutex_t valid_list_lock;
 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 tdm_error _tdm_vblank_cb_vblank_SW(void *user_data);
 173 static tdm_error _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info);
 174 static void _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
 175                                                                          unsigned int tv_sec, unsigned int tv_usec,
 176                                                                          void *user_data);
 177 static void _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay);
 178 static void _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank,
 179                                                                                            pid_t *pid, const char **name);
 180
 181 #if 0
 182 static void
 183 _print_list(struct list_head *list)
 184 {
 185         tdm_vblank_wait_info *w = NULL;
 186
 187         LIST_FOR_EACH_ENTRY(w, list, link) {
 188                 printf(" %d", w->interval);
 189         }
 190         printf("\n");
 191 }
 192 #endif
 193
 194 static int
 195 tdm_vblank_is_valid(tdm_vblank *vblank)
 196 {
 197         tdm_private_vblank *v = NULL;
 198
 199         if (vblank && vblank_list_inited) {
 200                 pthread_mutex_lock(&valid_list_lock);
 201                 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 202                         if (v == (tdm_private_vblank *)vblank) {
 203                                 pthread_mutex_unlock(&valid_list_lock);
 204                                 return 1;
 205                         }
 206                 }
 207                 pthread_mutex_unlock(&valid_list_lock);
 208
 209         }
 210         return 0;
 211 }
 212
 213 static void
 214 _tdm_vblank_valid_list_add(struct list_head *valid_link, struct list_head *valid_list)
 215 {
 216         pthread_mutex_lock(&valid_list_lock);
 217         LIST_ADDTAIL(valid_link, valid_list);
 218         pthread_mutex_unlock(&valid_list_lock);
 219 }
 220
 221 static void
 222 _tdm_vblank_valid_list_del(struct list_head *valid_link)
 223 {
 224         pthread_mutex_lock(&valid_list_lock);
 225         LIST_DEL(valid_link);
 226         pthread_mutex_unlock(&valid_list_lock);
 227 }
 228
 229 static inline tdm_private_vblank*
 230 _tdm_vblank_find(double vblank_stamp)
 231 {
 232         tdm_private_vblank *v = NULL;
 233
 234         if (!vblank_stamp)
 235                 return 0;
 236
 237         pthread_mutex_lock(&valid_list_lock);
 238         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 239                 if (v->stamp == vblank_stamp) {
 240                         pthread_mutex_unlock(&valid_list_lock);
 241                         return v;
 242                 }
 243         }
 244         pthread_mutex_unlock(&valid_list_lock);
 245
 246         return 0;
 247 }
 248
 249 static inline unsigned int
 250 _tdm_vblank_check_valid_wait(tdm_vblank_wait_info *wait_info)
 251 {
 252         tdm_vblank_wait_info *w = NULL;
 253
 254         if (!wait_info)
 255                 return 0;
 256
 257         pthread_mutex_lock(&valid_list_lock);
 258         LIST_FOR_EACH_ENTRY(w, &valid_wait_list, valid_link) {
 259                 if (w == wait_info) {
 260                         pthread_mutex_unlock(&valid_list_lock);
 261                         return 1;
 262                 }
 263         }
 264         pthread_mutex_unlock(&valid_list_lock);
 265
 266         return 0;
 267 }
 268
 269 static inline unsigned int
 270 _tdm_vblank_find_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
 271 {
 272         tdm_vblank_wait_info *w = NULL;
 273
 274         if (!wait_info)
 275                 return 0;
 276
 277         LIST_FOR_EACH_ENTRY(w, list, link) {
 278                 if (w->stamp == wait_info->stamp)
 279                         return 1;
 280         }
 281
 282         return 0;
 283 }
 284
 285 static inline void
 286 _tdm_vblank_insert_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
 287 {
 288         tdm_vblank_wait_info *w = NULL;
 289         tdm_vblank_wait_info *found = NULL;
 290
 291         if (LIST_IS_EMPTY(list)) {
 292                 LIST_ADDTAIL(&wait_info->link, list);
 293                 return;
 294         }
 295
 296         LIST_FOR_EACH_ENTRY(w, list, link) {
 297                 if (wait_info->type == VBLANK_TYPE_SW) {
 298                         if (wait_info->target_time == 0)
 299                                 TDM_NEVER_GET_HERE();
 300                         if (w->target_time <= wait_info->target_time) {
 301                                 found = w;
 302                                 continue;
 303                         }
 304                 } else {
 305                         if (w->interval <= wait_info->interval) {
 306                                 found = w;
 307                                 continue;
 308                         }
 309                 }
 310         }
 311
 312         if (found)
 313                 LIST_ADD(&wait_info->link, &found->link);
 314         else
 315                 LIST_ADDTAIL(&wait_info->link, list->next);
 316 }
 317
 318 static void
 319 _tdm_vblank_change_to_SW(tdm_private_vblank *private_vblank)
 320 {
 321         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 322
 323         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
 324                 LIST_DEL(&w->link);
 325
 326                 tdm_display_lock(private_vblank->dpy);
 327                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
 328                 tdm_display_unlock(private_vblank->dpy);
 329
 330                 w->type = VBLANK_TYPE_SW_FAKE;
 331                 _tdm_vblank_wait_SW(w);
 332         }
 333 }
 334
 335 static void
 336 _tdm_vblank_free_HW_wait(tdm_private_vblank *private_vblank, tdm_error error, unsigned int call_cb)
 337 {
 338         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 339
 340         if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list)) {
 341                 pid_t pid;
 342                 const char *proc_name;
 343                 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
 344                 VER("TDM HW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
 345         }
 346
 347         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
 348                 LIST_DEL(&w->link);
 349                 _tdm_vblank_valid_list_del(&w->valid_link);
 350
 351                 tdm_display_lock(private_vblank->dpy);
 352                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, w);
 353                 tdm_display_unlock(private_vblank->dpy);
 354
 355                 VDB("wait(%p) last(%.6f) sequence(%u) done (error:%d, call_cb:%u)",
 356                         w, 0, w->target_seq, error, call_cb);
 357
 358                 if (call_cb && w->func)
 359                         w->func(private_vblank, error, 0, 0, 0, w->user_data);
 360
 361                 free(w);
 362         }
 363 }
 364
 365 static void
 366 _tdm_vblank_update_output_info(tdm_private_vblank *private_vblank)
 367 {
 368         tdm_output *output = private_vblank->output;
 369         tdm_output_conn_status connection = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
 370         unsigned int vrefresh = TDM_VBLANK_DEFAULT_VREFRESH;
 371         tdm_error ret;
 372
 373         ret = tdm_output_get_conn_status(output, &connection);
 374         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 375
 376         if (connection == TDM_OUTPUT_CONN_STATUS_MODE_SETTED) {
 377                 const tdm_output_mode *mode = NULL;
 378                 tdm_output_get_mode(output, &mode);
 379                 if (mode)
 380                         vrefresh = mode->vrefresh;
 381                 else
 382                         VWR("mode not setted!!!");
 383         }
 384
 385         private_vblank->connection = connection;
 386         private_vblank->vrefresh = vrefresh;
 387         private_vblank->HW_vblank_gap = 1.0 / private_vblank->vrefresh;
 388
 389         if (private_vblank->fps_changeable)
 390                 private_vblank->fps = vrefresh;
 391
 392         VIN("connection(%d) vrefresh(%d) fps(%d) fps_changeable(%d)",
 393                 private_vblank->connection,
 394                 private_vblank->vrefresh, private_vblank->fps, private_vblank->fps_changeable);
 395 }
 396
 397 /* LCOV_EXCL_START */
 398 static void
 399 _tdm_vblank_cb_output_change(tdm_output *output, tdm_output_change_type type,
 400                                                          tdm_value value, void *user_data)
 401 {
 402         tdm_private_vblank *private_vblank = user_data;
 403
 404         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
 405
 406         switch (type) {
 407         case TDM_OUTPUT_CHANGE_DPMS:
 408                 VIN("dpms %s", tdm_dpms_str(value.u32));
 409                 private_vblank->check_HW_or_SW = 1;
 410                 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(value.u32)) {
 411                         if (private_vblank->enable_fake)
 412                                 _tdm_vblank_change_to_SW(private_vblank);
 413                         else {
 414                                 tdm_display_lock(private_vblank->dpy);
 415                                 _tdm_vblank_timeout_timer_update(private_vblank, 0);
 416                                 tdm_display_unlock(private_vblank->dpy);
 417
 418                                 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_DPMS_OFF, 1);
 419                         }
 420                 }
 421                 break;
 422         case TDM_OUTPUT_CHANGE_CONNECTION:
 423                 if (private_vblank->connection == value.u32)
 424                         break;
 425                 VIN("output %s", tdm_status_str(value.u32));
 426                 _tdm_vblank_update_output_info(private_vblank);
 427                 private_vblank->check_HW_or_SW = 1;
 428                 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
 429                         if (private_vblank->enable_fake)
 430                                 _tdm_vblank_change_to_SW(private_vblank);
 431                         else {
 432                                 tdm_display_lock(private_vblank->dpy);
 433                                 _tdm_vblank_timeout_timer_update(private_vblank, 0);
 434                                 tdm_display_unlock(private_vblank->dpy);
 435
 436                                 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_OUTPUT_DISCONNECTED, 1);
 437                         }
 438                 }
 439                 break;
 440         default:
 441                 break;
 442         }
 443 }
 444 /* LCOV_EXCL_STOP */
 445
 446 EXTERN tdm_error
 447 tdm_vblank_set_client_vblank_fps(unsigned int pid, const char *name, unsigned int fps)
 448 {
 449         tdm_private_vblank *v = NULL;
 450
 451         TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
 452         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 453
 454         TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
 455
 456         pthread_mutex_lock(&valid_list_lock);
 457         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 458                 struct wl_client *client;
 459                 pid_t client_pid = 0;
 460
 461                 if (!v->resource)
 462                         continue;
 463
 464                 client = wl_resource_get_client(v->resource);
 465                 if (!client)
 466                         continue;
 467
 468                 wl_client_get_credentials(client, &client_pid, NULL, NULL);
 469
 470                 if (client_pid != pid)
 471                         continue;
 472
 473                 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
 474                         if (strncmp(v->name, name, TDM_NAME_LEN))
 475                                 continue;
 476                 }
 477
 478                 tdm_vblank_set_fps(v, fps);
 479
 480                 TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
 481         }
 482         pthread_mutex_unlock(&valid_list_lock);
 483
 484         return TDM_ERROR_NONE;
 485 }
 486
 487 EXTERN tdm_error
 488 tdm_vblank_set_client_ignore_global_fps(unsigned int pid, const char *name, unsigned int ignore)
 489 {
 490         tdm_private_vblank *v = NULL;
 491
 492         TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
 493
 494         TDM_INFO("pid: %u, name: %s, ignore: %u", pid, name, ignore);
 495
 496         pthread_mutex_lock(&valid_list_lock);
 497         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 498                 struct wl_client *client;
 499                 pid_t client_pid = 0;
 500
 501                 if (!v->resource)
 502                         continue;
 503
 504                 client = wl_resource_get_client(v->resource);
 505                 if (!client)
 506                         continue;
 507
 508                 wl_client_get_credentials(client, &client_pid, NULL, NULL);
 509
 510                 if (client_pid != pid)
 511                         continue;
 512
 513                 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
 514                         if (strncmp(v->name, name, TDM_NAME_LEN))
 515                                 continue;
 516                 }
 517
 518                 tdm_vblank_ignore_global_fps(v, ignore);
 519
 520                 TDM_INFO("(pid:%u) '%s' ignore changed: %u", pid, v->name, ignore);
 521         }
 522         pthread_mutex_unlock(&valid_list_lock);
 523
 524         return TDM_ERROR_NONE;
 525 }
 526
 527 EXTERN tdm_error
 528 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
 529 {
 530         tdm_private_vblank *v = NULL;
 531
 532         if (enable)
 533                 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 534
 535         TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
 536
 537         pthread_mutex_lock(&valid_list_lock);
 538
 539         vblank_global_fps = (enable) ? fps : 0;
 540
 541         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
 542                 /* skip if vblank is created in server side */
 543                 if (!v->resource)
 544                         continue;
 545
 546                 v->check_HW_or_SW = 1;
 547         }
 548         pthread_mutex_unlock(&valid_list_lock);
 549
 550         return TDM_ERROR_NONE;
 551 }
 552
 553 INTERN tdm_error
 554 tdm_vblank_cb_vblank_create(tdm_vblank *vblank, double vblank_stamp)
 555 {
 556         tdm_private_vblank *private_vblank;
 557         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 558
 559         TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
 560
 561         if (vblank)
 562                 private_vblank = vblank;
 563         else {
 564                 private_vblank = _tdm_vblank_find(vblank_stamp);
 565                 if (!private_vblank) {
 566                         TDM_DBG("can't find vblank(%.0f) from valid_list", vblank_stamp);
 567                         return TDM_ERROR_NONE;
 568                 }
 569         }
 570
 571         if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
 572                 tdm_thread_cb_vblank_create vblank_create;
 573                 tdm_private_display *private_display = private_vblank->dpy;
 574                 tdm_error ret;
 575
 576                 vblank_create.base.type = TDM_THREAD_CB_VBLANK_CREATE;
 577                 vblank_create.base.length = sizeof vblank_create;
 578                 vblank_create.vblank_stamp = private_vblank->stamp;
 579
 580                 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_create.base);
 581                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 582
 583                 return TDM_ERROR_NONE;
 584         }
 585
 586         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 587                 private_vblank->in_create_handler = 1;
 588                 ch_info->func(private_vblank, ch_info->user_data);
 589                 private_vblank->in_create_handler = 0;
 590         }
 591
 592         return TDM_ERROR_NONE;
 593 }
 594
 595 EXTERN tdm_error
 596 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 597 {
 598         tdm_vblank_create_handler_info *ch_info;
 599
 600         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 601
 602         /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
 603          * can be called in both threads and tdm_thread_send_cb supports only one-way
 604          * communication now.
 605          */
 606         if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
 607                 TDM_ERR("add_create_handler should be called in main thread");
 608                 return TDM_ERROR_BAD_REQUEST;
 609         }
 610
 611         ch_info = calloc(1, sizeof *ch_info);
 612         TDM_RETURN_VAL_IF_FAIL(ch_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
 613
 614         ch_info->func = func;
 615         ch_info->user_data = user_data;
 616
 617         LIST_ADDTAIL(&ch_info->link, &create_handler_list);
 618
 619         return TDM_ERROR_NONE;
 620 }
 621
 622 EXTERN void
 623 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
 624 {
 625         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 626
 627         /* we don't allow adding a create handler in sub-thread because tdm_vblank_create()
 628          * can be called in both threads and tdm_thread_send_cb supports only one-way
 629          * communication now.
 630          */
 631         if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
 632                 TDM_ERR("remove_create_handler should be called in main thread");
 633                 return;
 634         }
 635
 636         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 637                 if (ch_info->func != func && ch_info->user_data != user_data)
 638                         continue;
 639
 640                 LIST_DEL(&ch_info->link);
 641                 free(ch_info);
 642                 return;
 643         }
 644 }
 645
 646 INTERN tdm_error
 647 tdm_vblank_init(tdm_display *dpy)
 648 {
 649         if (vblank_list_inited)
 650                 return TDM_ERROR_NONE;
 651
 652         if (pthread_mutex_init(&valid_list_lock, NULL)) {
 653                 TDM_ERR("mutex init failed: %m");
 654                 return TDM_ERROR_OUT_OF_MEMORY;
 655         }
 656
 657         LIST_INITHEAD(&valid_vblank_list);
 658         LIST_INITHEAD(&valid_wait_list);
 659         LIST_INITHEAD(&create_handler_list);
 660
 661         vblank_list_inited = 1;
 662
 663         return TDM_ERROR_NONE;
 664 }
 665
 666 INTERN void
 667 tdm_vblank_deinit(tdm_display *dpy)
 668 {
 669         tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
 670
 671         if (!vblank_list_inited)
 672                 return;
 673
 674         if (!LIST_IS_EMPTY(&valid_vblank_list))
 675                 TDM_NEVER_GET_HERE();
 676
 677         if (!LIST_IS_EMPTY(&valid_wait_list))
 678                 TDM_NEVER_GET_HERE();
 679
 680         LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
 681                 LIST_DEL(&ch_info->link);
 682                 free(ch_info);
 683         }
 684
 685         pthread_mutex_destroy(&valid_list_lock);
 686
 687         vblank_list_inited = 0;
 688 }
 689
 690 EXTERN tdm_vblank *
 691 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
 692 {
 693         tdm_private_vblank *private_vblank;
 694         tdm_error ret;
 695
 696         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_display_is_valid(dpy), TDM_ERROR_INVALID_PARAMETER, NULL);
 697         TDM_RETURN_VAL_IF_FAIL_WITH_ERROR(tdm_output_is_valid(output), TDM_ERROR_INVALID_PARAMETER, NULL);
 698
 699         if (error)
 700                 *error = TDM_ERROR_NONE;
 701
 702         private_vblank = calloc(1, sizeof * private_vblank);
 703         if (!private_vblank) {
 704                 /* LCOV_EXCL_START */
 705                 if (error)
 706                         *error = TDM_ERROR_OUT_OF_MEMORY;
 707                 TDM_ERR("alloc failed");
 708                 return NULL;
 709                 /* LCOV_EXCL_STOP */
 710         }
 711
 712         tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
 713
 714         private_vblank->stamp = ++stamp;
 715         private_vblank->owner_tid = syscall(SYS_gettid);
 716         private_vblank->dpy = dpy;
 717         private_vblank->output = output;
 718         private_vblank->check_HW_or_SW = 1;
 719         private_vblank->fps_changeable = 1;
 720         private_vblank->last_interval = -1;
 721
 722         _tdm_vblank_update_output_info(private_vblank);
 723
 724         strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
 725         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 726
 727         LIST_INITHEAD(&private_vblank->HW_wait_list);
 728         LIST_INITHEAD(&private_vblank->SW_wait_list);
 729
 730         _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
 731
 732         VIN("created. vrefresh(%d) connection(%d)",
 733                 private_vblank->vrefresh, private_vblank->connection);
 734
 735         tdm_display_lock(private_vblank->dpy);
 736         tdm_vblank_cb_vblank_create(NULL, private_vblank->stamp);
 737         tdm_display_unlock(private_vblank->dpy);
 738
 739         return (tdm_vblank *)private_vblank;
 740 }
 741
 742 EXTERN void
 743 tdm_vblank_destroy(tdm_vblank *vblank)
 744 {
 745         tdm_private_vblank *private_vblank = vblank;
 746         tdm_vblank_wait_info *w = NULL, *ww = NULL;
 747
 748         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
 749
 750         if (private_vblank->in_create_handler) {
 751                 TDM_ERR("NOT allowed to be called in a create handler");
 752                 return;
 753         }
 754
 755         _tdm_vblank_valid_list_del(&private_vblank->valid_link);
 756
 757         if (private_vblank->SW_timer) {
 758                 tdm_display_lock(private_vblank->dpy);
 759                 tdm_event_loop_source_remove(private_vblank->SW_timer);
 760                 tdm_display_unlock(private_vblank->dpy);
 761         }
 762
 763         tdm_output_remove_change_handler(private_vblank->output,
 764                                                                          _tdm_vblank_cb_output_change, private_vblank);
 765
 766         _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
 767
 768         if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
 769                 pid_t pid;
 770                 const char *proc_name;
 771                 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
 772                 VER("TDM SW vblank destroyed forcely!! (pid: %u, name: %s)", pid, proc_name);
 773         }
 774
 775         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
 776                 LIST_DEL(&w->link);
 777                 _tdm_vblank_valid_list_del(&w->valid_link);
 778                 free(w);
 779         }
 780
 781         if (private_vblank->timeout_timer) {
 782                 tdm_display_lock(private_vblank->dpy);
 783                 tdm_event_loop_source_remove(private_vblank->timeout_timer);
 784                 tdm_display_unlock(private_vblank->dpy);
 785         }
 786
 787         VIN("destroyed");
 788
 789         free(private_vblank);
 790 }
 791
 792 EXTERN tdm_error
 793 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
 794 {
 795         tdm_private_vblank *private_vblank = vblank;
 796         struct wl_client *client;
 797
 798         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 799         TDM_RETURN_VAL_IF_FAIL(pid != NULL, TDM_ERROR_INVALID_PARAMETER);
 800
 801         if (!private_vblank->resource) {
 802                 *pid = 0;
 803                 return TDM_ERROR_NONE;
 804         }
 805
 806         client = wl_resource_get_client(private_vblank->resource);
 807         if (!client) {
 808                 *pid = 0;
 809                 return TDM_ERROR_NONE;
 810         }
 811
 812         wl_client_get_credentials(client, pid, NULL, NULL);
 813
 814         return TDM_ERROR_NONE;
 815 }
 816
 817 EXTERN tdm_error
 818 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
 819 {
 820         tdm_private_vblank *private_vblank = vblank;
 821
 822         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 823
 824         if (!name)
 825                 name = TDM_VBLANK_DEFAULT_NAME;
 826
 827         strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
 828         private_vblank->name[TDM_NAME_LEN - 1] = '\0';
 829
 830         VIN("name(%s)", name);
 831
 832         return TDM_ERROR_NONE;
 833 }
 834
 835 EXTERN tdm_error
 836 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
 837 {
 838         tdm_private_vblank *private_vblank = vblank;
 839
 840         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 841         TDM_RETURN_VAL_IF_FAIL(name != NULL, TDM_ERROR_INVALID_PARAMETER);
 842
 843         *name = (const char*)private_vblank->name;
 844
 845         return TDM_ERROR_NONE;
 846 }
 847
 848 EXTERN tdm_error
 849 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
 850 {
 851         tdm_private_vblank *private_vblank = vblank;
 852
 853         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 854         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 855
 856         if (private_vblank->fps_fixed) {
 857                 VIN("fps(%d) can't be changed", private_vblank->fps);
 858                 return TDM_ERROR_NONE;
 859         }
 860
 861         private_vblank->fps_changeable = 0;
 862
 863         if (private_vblank->fps == fps)
 864                 return TDM_ERROR_NONE;
 865
 866         private_vblank->fps = fps;
 867         private_vblank->check_HW_or_SW = 1;
 868
 869         VIN("fps(%d) changed", fps);
 870
 871         return TDM_ERROR_NONE;
 872 }
 873
 874 EXTERN tdm_error
 875 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
 876 {
 877         tdm_private_vblank *private_vblank = vblank;
 878
 879         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 880         TDM_RETURN_VAL_IF_FAIL(fps != NULL, TDM_ERROR_INVALID_PARAMETER);
 881
 882         *fps = private_vblank->fps;
 883
 884         return TDM_ERROR_NONE;
 885 }
 886
 887 EXTERN tdm_error
 888 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
 889 {
 890         tdm_private_vblank *private_vblank = vblank;
 891
 892         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 893         TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
 894
 895         private_vblank->fps_changeable = 0;
 896         private_vblank->fps_fixed = 1;
 897
 898         if (private_vblank->fps == fps)
 899                 return TDM_ERROR_NONE;
 900
 901         private_vblank->fps = fps;
 902         private_vblank->check_HW_or_SW = 1;
 903
 904         VIN("fps(%d) fixed", fps);
 905
 906         return TDM_ERROR_NONE;
 907 }
 908
 909 EXTERN tdm_error
 910 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
 911 {
 912         tdm_private_vblank *private_vblank = vblank;
 913
 914         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 915
 916         if (private_vblank->ignore_global_fps == ignore)
 917                 return TDM_ERROR_NONE;
 918
 919         private_vblank->ignore_global_fps = ignore;
 920         private_vblank->check_HW_or_SW = 1;
 921
 922         VIN("ignore_global_fps(%d)", private_vblank->ignore_global_fps);
 923
 924         return TDM_ERROR_NONE;
 925 }
 926
 927 EXTERN tdm_error
 928 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
 929 {
 930         tdm_private_vblank *private_vblank = vblank;
 931
 932         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 933
 934         if (private_vblank->offset == offset)
 935                 return TDM_ERROR_NONE;
 936
 937         private_vblank->offset = offset;
 938         private_vblank->check_HW_or_SW = 1;
 939
 940         VIN("offset(%d)", private_vblank->offset);
 941
 942         return TDM_ERROR_NONE;
 943 }
 944
 945 EXTERN tdm_error
 946 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
 947 {
 948         tdm_private_vblank *private_vblank = vblank;
 949
 950         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 951         TDM_RETURN_VAL_IF_FAIL(offset != NULL, TDM_ERROR_INVALID_PARAMETER);
 952
 953         *offset = private_vblank->offset;
 954
 955         return TDM_ERROR_NONE;
 956 }
 957
 958 EXTERN tdm_error
 959 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
 960 {
 961         tdm_private_vblank *private_vblank = vblank;
 962
 963         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 964
 965         if (private_vblank->enable_fake == enable_fake)
 966                 return TDM_ERROR_NONE;
 967
 968         private_vblank->enable_fake = enable_fake;
 969
 970         VIN("enable_fake(%d)", private_vblank->enable_fake);
 971
 972         return TDM_ERROR_NONE;
 973 }
 974
 975 EXTERN tdm_error
 976 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
 977 {
 978         tdm_private_vblank *private_vblank = vblank;
 979
 980         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
 981         TDM_RETURN_VAL_IF_FAIL(enable_fake != NULL, TDM_ERROR_INVALID_PARAMETER);
 982
 983         *enable_fake = private_vblank->enable_fake;
 984
 985         return TDM_ERROR_NONE;
 986 }
 987
 988 static tdm_error
 989 _tdm_vblank_timeout_timer_cb(void *user_data)
 990 {
 991         tdm_private_vblank *private_vblank = user_data;
 992         tdm_vblank_wait_info *w = NULL;
 993         pid_t pid;
 994         const char *proc_name;
 995
 996         TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
 997
 998         _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
 999
1000         VER("TDM vblank TIMEOUT!! (pid: %u, name: %s)", pid, proc_name);
1001         VER("quotient(%u) last_seq(%u) last_time(%.6f)", private_vblank->quotient, private_vblank->last_seq, private_vblank->last_time);
1002
1003         LIST_FOR_EACH_ENTRY(w, &private_vblank->HW_wait_list, link) {
1004                 VER("wait_info(%p) req_time(%.6f) target_seq(%u) interval(%u) hw_interval(%d)",
1005                         w, w->req_time, w->target_seq, w->interval, w->hw_interval);
1006                 tdm_output_vblank_print_wait_information(private_vblank->output, w);
1007         }
1008
1009         LIST_FOR_EACH_ENTRY(w, &private_vblank->SW_wait_list, link) {
1010                 VER("wait_info(%p) req_time(%.6f) target_time(%.6f) target_seq(%u) interval(%u)",
1011                         w, w->req_time, w->target_time, w->target_seq, w->interval);
1012         }
1013
1014         return TDM_ERROR_NONE;
1015 }
1016
1017 static void
1018 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
1019 {
1020         tdm_error ret;
1021
1022         if (!private_vblank->timeout_timer) {
1023                 private_vblank->timeout_timer =
1024                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1025                                                                                          _tdm_vblank_timeout_timer_cb,
1026                                                                                          private_vblank,
1027                                                                                          &ret);
1028                 if (!private_vblank->timeout_timer) {
1029                         VER("couldn't add timer");
1030                         return;
1031                 }
1032                 VIN("Create Timeout timer");
1033         }
1034
1035         ret = tdm_event_loop_source_timer_update(private_vblank->timeout_timer, ms_delay);
1036         if (ret != TDM_ERROR_NONE) {
1037                 VER("couldn't update timer");
1038                 return;
1039         }
1040
1041         if (ms_delay != 0)
1042                 VDB("timeout timer updated");
1043         else
1044                 VDB("timeout timer disabled");
1045 }
1046
1047 static tdm_error
1048 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1049 {
1050         tdm_vblank_wait_info *first_wait_info = NULL;
1051         double curr, target;
1052         int ms_delay;
1053         tdm_error ret;
1054
1055         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1056                 VER("no wait_info");
1057                 return TDM_ERROR_OPERATION_FAILED;
1058         }
1059
1060         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1061         curr = tdm_helper_get_time();
1062         target = first_wait_info->target_time;
1063
1064         /* ms_delay should be more that 1 */
1065         if (target < curr)
1066                 ms_delay = 1;
1067         else
1068                 ms_delay = ceil((target - curr) * 1000.0);
1069
1070         if (ms_delay < 1)
1071                 ms_delay = 1;
1072
1073         if (ms_delay > 5000)
1074                 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1075         else
1076                 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1077
1078         tdm_display_lock(private_vblank->dpy);
1079
1080         if (!private_vblank->SW_timer) {
1081                 private_vblank->SW_timer =
1082                         tdm_event_loop_add_timer_handler(private_vblank->dpy,
1083                                                                                          _tdm_vblank_cb_vblank_SW,
1084                                                                                          private_vblank,
1085                                                                                          &ret);
1086                 if (!private_vblank->SW_timer) {
1087                         tdm_display_unlock(private_vblank->dpy);
1088                         VER("couldn't add timer");
1089                         return ret;
1090                 }
1091                 VIN("Create SW timer");
1092         }
1093
1094         private_vblank->last_interval = ms_delay;
1095
1096         ret = tdm_event_loop_source_timer_update(private_vblank->SW_timer, ms_delay);
1097         if (ret != TDM_ERROR_NONE) {
1098                 /* LCOV_EXCL_START */
1099                 tdm_display_unlock(private_vblank->dpy);
1100                 VER("couldn't update timer");
1101                 return ret;
1102                 /* LCOV_EXCL_STOP */
1103         }
1104
1105         tdm_display_unlock(private_vblank->dpy);
1106
1107         return TDM_ERROR_NONE;
1108 }
1109
1110 static void
1111 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1112                                                  unsigned int tv_sec, unsigned int tv_usec,
1113                                                  void *user_data)
1114 {
1115         tdm_vblank_wait_info *wait_info = user_data;
1116         tdm_private_vblank *private_vblank;
1117
1118         if (!_tdm_vblank_check_valid_wait(wait_info)) {
1119                 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1120                 return;
1121         }
1122
1123         private_vblank = wait_info->private_vblank;
1124         TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1125
1126         if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1127                 VER("can't find wait(%p)", wait_info);
1128                 return;
1129         }
1130
1131         if (wait_info->type == VBLANK_TYPE_HW_SW) {
1132                 tdm_error ret;
1133
1134                 LIST_DEL(&wait_info->link);
1135
1136                 /* kernel sends the wrong time of first vblank event. and the time of
1137                  * second vblank is correct.
1138                  */
1139                 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1140                 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1141
1142                 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1143
1144                 ret = _tdm_vblank_sw_timer_update(private_vblank);
1145
1146                 /* wait_info will be freed in _tdm_vblank_cb_vblank_SW() */
1147                 if (ret == TDM_ERROR_NONE) {
1148                         VIN("wait(%p) SW timer", wait_info);
1149                         return;
1150                 }
1151
1152                 VER("couldn't update sw timer");
1153         }
1154
1155         tdm_display_lock(private_vblank->dpy);
1156         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1157         tdm_display_unlock(private_vblank->dpy);
1158
1159         LIST_DEL(&wait_info->link);
1160         _tdm_vblank_valid_list_del(&wait_info->valid_link);
1161
1162         /* tv_sec & tv_usec shouldn't be zero. But sometimes they are zero in some hardware.
1163          * We need to prohibit that last_time becomes zero because "last_time == 0" means
1164          * that a tdm_vblank object is just created and doesn't have the first vblank event.
1165          * If last_time becomes 0, it would make issue.
1166          */
1167         if (tv_sec == 0 && tv_usec == 0) {
1168                 double curr = tdm_helper_get_time();
1169                 tv_sec = TDM_TIME_SEC(curr);
1170                 tv_usec = TDM_TIME_USEC(curr);
1171         }
1172
1173         private_vblank->last_seq = wait_info->target_seq;
1174         private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1175
1176         VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
1177
1178         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1179                 TDM_TRACE_ASYNC_END((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1180
1181         if (wait_info->func)
1182                 wait_info->func(private_vblank, TDM_ERROR_NONE, wait_info->target_seq,
1183                                                 tv_sec, tv_usec, wait_info->user_data);
1184
1185         free(wait_info);
1186 }
1187
1188 static tdm_error
1189 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1190 {
1191         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1192         int hw_interval;
1193         tdm_error ret;
1194
1195         if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1196                 VIN("Use HW vblank");
1197                 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1198         }
1199
1200         _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1201
1202         if (private_vblank->last_time == 0) {
1203                 hw_interval = wait_info->interval * private_vblank->quotient;
1204
1205                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1206                 private_vblank->last_seq = 0;
1207                 private_vblank->last_time = tdm_helper_get_time();
1208
1209                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1210                 wait_info->target_seq = 1;
1211
1212                 VDB("wait(%p) last(%.6f) hw_itvl(%d) targ_seq(%u)",
1213                         wait_info, private_vblank->last_time, hw_interval, wait_info->target_seq);
1214         } else {
1215                 double last, prev, req, curr, target;
1216                 unsigned int skip;
1217
1218                 last = private_vblank->last_time;
1219                 req = wait_info->req_time;
1220
1221                 /* make sure that req time is bigger than last. */
1222                 if (req < last)
1223                         req = last;
1224
1225                 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1226                 prev = last + private_vblank->vblank_gap * skip;
1227
1228                 curr = tdm_helper_get_time();
1229                 target = last;
1230                 while (target < curr)
1231                         target += (private_vblank->vblank_gap * wait_info->interval);
1232
1233                 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
1234
1235                 wait_info->target_seq = private_vblank->last_seq;
1236                 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1237
1238                 if (hw_interval > 300)
1239                         VER("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1240                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1241                                 skip, hw_interval, wait_info->target_seq);
1242                 else
1243                         VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) hw_itvl(%d) targ_seq(%u)",
1244                                 wait_info, last, req - last, prev - last, curr - last, target, target - last,
1245                                 skip, hw_interval, wait_info->target_seq);
1246         }
1247
1248         private_vblank->last_interval = hw_interval;
1249         wait_info->hw_interval = hw_interval;
1250
1251         if (tdm_ttrace_module & TDM_TTRACE_VBLANK)
1252                 TDM_TRACE_ASYNC_BEGIN((int)wait_info->req_time, "TDM_Vblank:%u", (unsigned int)private_vblank->stamp);
1253
1254         if (private_vblank->add_front)
1255                 ret = tdm_output_wait_vblank_add_front(private_vblank->output, hw_interval, 0,
1256                                                                                            _tdm_vblank_cb_vblank_HW, wait_info);
1257         else
1258                 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1259                                                                          _tdm_vblank_cb_vblank_HW, wait_info);
1260
1261         if (ret != TDM_ERROR_NONE) {
1262                 LIST_DEL(&wait_info->link);
1263                 return ret;
1264         }
1265
1266         VDB("wait(%p) waiting", wait_info);
1267
1268         return TDM_ERROR_NONE;
1269 }
1270
1271 static tdm_error
1272 _tdm_vblank_cb_vblank_SW(void *user_data)
1273 {
1274         tdm_private_vblank *private_vblank = user_data;
1275
1276         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1277
1278         return tdm_vblank_cb_vblank_SW(private_vblank, 0);
1279 }
1280
1281 INTERN tdm_error
1282 tdm_vblank_cb_vblank_SW(tdm_vblank *vblank, double vblank_stamp)
1283 {
1284         tdm_private_vblank *private_vblank;
1285         tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1286
1287         TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
1288
1289         if (vblank)
1290                 private_vblank = vblank;
1291         else {
1292                 private_vblank = _tdm_vblank_find(vblank_stamp);
1293                 if (!private_vblank) {
1294                         TDM_ERR("can't find vblank(%.0f) from valid_list", vblank_stamp);
1295                         return TDM_ERROR_NONE;
1296                 }
1297         }
1298
1299         if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1300                 tdm_thread_cb_vblank_sw vblank_sw;
1301                 tdm_private_display *private_display = private_vblank->dpy;
1302                 tdm_error ret;
1303
1304                 vblank_sw.base.type = TDM_THREAD_CB_VBLANK_SW;
1305                 vblank_sw.base.length = sizeof vblank_sw;
1306                 vblank_sw.vblank_stamp = private_vblank->stamp;
1307
1308                 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_sw.base);
1309                 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1310
1311                 return TDM_ERROR_NONE;
1312         }
1313
1314         if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1315                 VER("no wait_info");
1316                 return TDM_ERROR_OPERATION_FAILED;
1317         }
1318
1319         if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1320                 TDM_NEVER_GET_HERE();
1321
1322         first_wait_info = container_of(private_vblank->SW_wait_list.next, first_wait_info, link);
1323         TDM_RETURN_VAL_IF_FAIL(first_wait_info != NULL, TDM_ERROR_OPERATION_FAILED);
1324
1325         _tdm_vblank_timeout_timer_update(private_vblank, 0);
1326
1327         if (private_vblank->last_seq >= first_wait_info->target_seq)
1328                 TDM_ERR("last_seq(%u) target_seq(%u)", private_vblank->last_seq, first_wait_info->target_seq);
1329
1330         private_vblank->last_seq = first_wait_info->target_seq;
1331         private_vblank->last_time = first_wait_info->target_time;
1332
1333         VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1334
1335         LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1336                 if (w->target_time != first_wait_info->target_time)
1337                         break;
1338
1339                 LIST_DEL(&w->link);
1340                 _tdm_vblank_valid_list_del(&w->valid_link);
1341
1342                 if (w->func) {
1343                         tdm_display_unlock(private_vblank->dpy);
1344                         w->func(private_vblank, TDM_ERROR_NONE, w->target_seq,
1345                                         TDM_TIME_SEC(w->target_time), TDM_TIME_USEC(w->target_time),
1346                                         w->user_data);
1347                         tdm_display_lock(private_vblank->dpy);
1348                 }
1349
1350                 free(w);
1351         }
1352
1353         return TDM_ERROR_NONE;
1354 }
1355
1356 static tdm_error
1357 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1358 {
1359         tdm_private_vblank *private_vblank = wait_info->private_vblank;
1360         tdm_error ret;
1361
1362         if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1363                 VIN("Use SW vblank");
1364                 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
1365         }
1366
1367         if (private_vblank->last_time == 0) {
1368                 /* SW vblank starts from now. SW vblank doesn't need to be aligned with HW vblank. */
1369                 private_vblank->last_seq = 0;
1370                 private_vblank->last_time = tdm_helper_get_time();
1371
1372                 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1373                 wait_info->target_seq = 1;
1374                 wait_info->target_time = private_vblank->last_time + 0.001;
1375
1376                 VDB("wait(%p) last(%.6f) target(%.6f) target sequence(%u)",
1377                         wait_info, private_vblank->last_time, wait_info->target_time, wait_info->target_seq);
1378         } else {
1379                 double last, prev, req, curr, target;
1380                 unsigned int skip;
1381
1382                 last = private_vblank->last_time;
1383                 req = wait_info->req_time;
1384
1385                 /* make sure that req time is bigger than last. */
1386                 if (req < last)
1387                         req = last;
1388
1389                 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1390                 prev = last + private_vblank->vblank_gap * skip;
1391
1392                 curr = tdm_helper_get_time();
1393                 target = prev + private_vblank->vblank_gap * wait_info->interval;
1394
1395                 while (target < curr)
1396                         target += private_vblank->vblank_gap;
1397
1398                 wait_info->target_seq = private_vblank->last_seq;
1399                 wait_info->target_seq += (unsigned int)((target - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1400
1401                 wait_info->target_time = target;
1402
1403                 VDB("wait(%p) last(%.6f) req(%.6f) prev(%.6f) curr(%.6f) targ(%.6f,%.6f) skip(%u) targ_seq(%u)",
1404                         wait_info, last, req - last, prev - last, curr - last,
1405                         target, target - last, skip, wait_info->target_seq);
1406         }
1407
1408         _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1409
1410         ret = _tdm_vblank_sw_timer_update(private_vblank);
1411         if (ret != TDM_ERROR_NONE) {
1412                 /* LCOV_EXCL_START */
1413                 LIST_DEL(&wait_info->link);
1414                 VER("couldn't update sw timer");
1415                 return ret;
1416                 /* LCOV_EXCL_STOP */
1417         }
1418
1419         return TDM_ERROR_NONE;
1420 }
1421
1422 EXTERN tdm_error
1423 tdm_vblank_wait(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1424                                 unsigned int interval, tdm_vblank_handler func, void *user_data)
1425 {
1426         tdm_private_vblank *private_vblank = vblank;
1427         tdm_vblank_wait_info *wait_info;
1428         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1429         unsigned int fps;
1430         tdm_error ret;
1431
1432         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1433         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1434
1435         if (private_vblank->in_create_handler) {
1436                 TDM_ERR("NOT allowed to be called in a create handler");
1437                 return TDM_ERROR_BAD_REQUEST;
1438         }
1439
1440         if (private_vblank->owner_tid != syscall(SYS_gettid)) {
1441                 TDM_ERR("SHOULD be called in the owner thread(%d)", (int)private_vblank->owner_tid);
1442                 return TDM_ERROR_BAD_REQUEST;
1443         }
1444
1445         tdm_output_get_dpms(private_vblank->output, &dpms);
1446
1447         if (!private_vblank->enable_fake) {
1448                 if (private_vblank->connection == TDM_OUTPUT_CONN_STATUS_DISCONNECTED) {
1449                         VER("can't wait a vblank: output disconnected");
1450                         return TDM_ERROR_OUTPUT_DISCONNECTED;
1451                 }
1452                 if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms)) {
1453                         VER("can't wait a vblank: DPMS %s", tdm_dpms_str(dpms));
1454                         return TDM_ERROR_DPMS_OFF;
1455                 }
1456         }
1457
1458         wait_info = calloc(1, sizeof * wait_info);
1459         if (!wait_info) {
1460                 /* LCOV_EXCL_START */
1461                 VER("alloc failed");
1462                 return TDM_ERROR_OUT_OF_MEMORY;
1463                 /* LCOV_EXCL_STOP */
1464         }
1465         _tdm_vblank_update_output_info(private_vblank);
1466
1467         /* set request time to current time if 0. This function seems to be called in server side. */
1468         if (req_sec == 0 && req_usec == 0) {
1469                 double curr = tdm_helper_get_time();
1470                 req_sec = TDM_TIME_SEC(curr);
1471                 req_usec = TDM_TIME_USEC(curr);
1472         }
1473
1474         LIST_INITHEAD(&wait_info->link);
1475
1476         _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
1477
1478         wait_info->stamp = ++stamp;
1479         wait_info->req_time = TDM_TIME(req_sec, req_usec);
1480         wait_info->interval = interval;
1481         wait_info->func = func;
1482         wait_info->user_data = user_data;
1483         wait_info->private_vblank = private_vblank;
1484
1485         if (private_vblank->ignore_global_fps ||
1486                 vblank_global_fps == 0 ||
1487                 private_vblank->fps < vblank_global_fps)
1488                 fps = private_vblank->fps;
1489         else
1490                 fps = vblank_global_fps;
1491
1492         if (private_vblank->check_HW_or_SW) {
1493                 private_vblank->check_HW_or_SW = 0;
1494                 private_vblank->vblank_gap = 1.0 / fps;
1495                 private_vblank->quotient = private_vblank->vrefresh / fps;
1496         }
1497
1498         /* 1) if fps != factor of vrefresh, SW timer
1499          * 2) if fps == factor of vrefresh && dpms == off, SW timer (Fake HW vblank)
1500          * 2) if fps == factor of vrefresh && dpms == on && offset == 0, HW vblank
1501          * 3) if fps == factor of vrefresh && dpms == on && offset != 0, HW vblank + SW timer
1502          * In case of 1), we really don't need to align with HW vblank.
1503          */
1504         if (private_vblank->vrefresh % fps)
1505                 wait_info->type = VBLANK_TYPE_SW;
1506         else if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(dpms) ||
1507                          private_vblank->connection != TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
1508                 wait_info->type = VBLANK_TYPE_SW_FAKE;
1509         else if (private_vblank->offset == 0)
1510                 wait_info->type = VBLANK_TYPE_HW;
1511         else
1512                 wait_info->type = VBLANK_TYPE_HW_SW;
1513
1514         if (wait_info->type == VBLANK_TYPE_SW || wait_info->type == VBLANK_TYPE_SW_FAKE) {
1515                 ret = _tdm_vblank_wait_SW(wait_info);
1516                 if (ret != TDM_ERROR_NONE)
1517                         TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1518         } else {
1519                 ret = _tdm_vblank_wait_HW(wait_info);
1520                 if (ret != TDM_ERROR_NONE)
1521                         TDM_ERR("_tdm_vblank_wait_HW failed: ret(%d)", ret);
1522
1523                 if (ret == TDM_ERROR_OUTPUT_DISCONNECTED || ret == TDM_ERROR_DPMS_OFF) {
1524                         ret = _tdm_vblank_wait_SW(wait_info);
1525                         if (ret != TDM_ERROR_NONE)
1526                                 TDM_ERR("_tdm_vblank_wait_SW failed: ret(%d)", ret);
1527                 }
1528         }
1529
1530         if (ret != TDM_ERROR_NONE) {
1531                 /* LCOV_EXCL_START */
1532                 LIST_DEL(&wait_info->link);
1533                 _tdm_vblank_valid_list_del(&wait_info->valid_link);
1534
1535                 tdm_display_lock(private_vblank->dpy);
1536                 tdm_output_remove_vblank_handler_internal(private_vblank->output, _tdm_vblank_cb_vblank_HW, wait_info);
1537                 tdm_display_unlock(private_vblank->dpy);
1538
1539                 free(wait_info);
1540                 return ret;
1541                 /* LCOV_EXCL_STOP */
1542         }
1543
1544         tdm_display_lock(private_vblank->dpy);
1545         _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1546         tdm_display_unlock(private_vblank->dpy);
1547
1548         return TDM_ERROR_NONE;
1549 }
1550
1551 EXTERN tdm_error
1552 tdm_vblank_wait_seq(tdm_vblank *vblank, unsigned int req_sec, unsigned int req_usec,
1553                                         unsigned int sequence, tdm_vblank_handler func, void *user_data)
1554 {
1555         tdm_private_vblank *private_vblank = vblank;
1556         unsigned int interval;
1557
1558         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1559         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
1560
1561         /* if the sequence of vblank reaches the max value, sequence can be 0. */
1562
1563         if (private_vblank->last_seq == 0) {
1564                 VWR("can't calculate interval with sequence(%u)", sequence);
1565                 interval = 1;
1566         } else if (sequence > private_vblank->last_seq ||
1567                            TDM_VBLANK_SEQ_REACHED_MAX(sequence, private_vblank->last_seq)) {
1568                 double last, curr, seq_target;
1569
1570                 last = private_vblank->last_time;
1571                 curr = tdm_helper_get_time();
1572                 seq_target = last + private_vblank->vblank_gap * (sequence - private_vblank->last_seq);
1573
1574                 /* If target is old or too close(1ms) to current, we call the handler immediately.
1575                  * 2ms? it seems too much.
1576                  */
1577                 if (seq_target < curr) {
1578                         func(vblank, TDM_ERROR_NONE, sequence,
1579                                  TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
1580                                  user_data);
1581                         return TDM_ERROR_NONE;
1582                 } else if ((seq_target - curr) < 0.001) {  /* 1ms */
1583                         func(vblank, TDM_ERROR_NONE, sequence,
1584                                  TDM_TIME_SEC(curr), TDM_TIME_USEC(curr),
1585                                  user_data);
1586                         return TDM_ERROR_NONE;
1587                 }
1588
1589                 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
1590         } else {
1591                 /* this seems error. But we handle this like normal to avoid the unexpected error in cliend side */
1592                 VER("sequence(%u) should be over the last sequence(%u)", sequence, private_vblank->last_seq);
1593                 func(vblank, TDM_ERROR_NONE, private_vblank->last_seq,
1594                          TDM_TIME_SEC(private_vblank->last_time), TDM_TIME_USEC(private_vblank->last_time),
1595                          user_data);
1596                 return TDM_ERROR_NONE;
1597         }
1598
1599         return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1600 }
1601
1602 /* LCOV_EXCL_START */
1603 INTERN tdm_error
1604 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1605 {
1606         tdm_private_vblank *private_vblank = vblank;
1607
1608         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1609
1610         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1611
1612         if (private_vblank->add_front == add_front)
1613                 return TDM_ERROR_NONE;
1614
1615         private_vblank->add_front = add_front;
1616
1617         return TDM_ERROR_NONE;
1618 }
1619 /* LCOV_EXCL_STOP */
1620
1621 INTERN tdm_error
1622 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1623 {
1624         tdm_private_vblank *private_vblank = vblank;
1625
1626         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1627         TDM_RETURN_VAL_IF_FAIL(private_vblank->resource == NULL, TDM_ERROR_OPERATION_FAILED);
1628
1629         private_vblank->resource = resource;
1630
1631         return TDM_ERROR_NONE;
1632 }
1633
1634 INTERN double
1635 tdm_vblank_get_stamp(tdm_vblank *vblank)
1636 {
1637         tdm_private_vblank *private_vblank = vblank;
1638
1639         TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1640
1641         return private_vblank->stamp;
1642 }
1643
1644 static unsigned int
1645 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1646 {
1647         tdm_vblank_wait_info *wait_info = NULL;
1648         unsigned int count = 0;
1649
1650         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1651                 count++;
1652         }
1653
1654         LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1655                 count++;
1656         }
1657
1658         return count;
1659 }
1660
1661 static void
1662 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1663 {
1664         struct wl_client *client;
1665
1666         if (!private_vblank->resource)
1667                 goto no_client;
1668
1669         client = wl_resource_get_client(private_vblank->resource);
1670         if (!client)
1671                 goto no_client;
1672
1673         wl_client_get_credentials(client, pid, NULL, NULL);
1674         *name = tdm_server_get_client_name(*pid);
1675
1676         return;
1677
1678 no_client:
1679         *pid = 0;
1680         *name = NULL;
1681         return;
1682 }
1683
1684 /* LCOV_EXCL_START */
1685 INTERN void
1686 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
1687 {
1688         tdm_private_vblank *v = NULL;
1689         tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
1690         tdm_output *output = tdm_display_get_output(dpy, 0, NULL);
1691
1692         if (output)
1693                 tdm_output_get_dpms(output, &dpms);
1694
1695         TDM_SNPRINTF(reply, len, "[Client Vblank List]\n");
1696         TDM_SNPRINTF(reply, len, "* DPMS: %s\n", tdm_dpms_str(dpms));
1697         TDM_SNPRINTF(reply, len, "* global fps: %u\n", vblank_global_fps);
1698         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1699         TDM_SNPRINTF(reply, len, "Name                 Type Wait Interval Sequence Fps Ignore Offset Fake Process\n");
1700         TDM_SNPRINTF(reply, len, "----------------------------------------------------------------------------------\n");
1701
1702         pthread_mutex_lock(&valid_list_lock);
1703         LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1704                 const char *proc_name = NULL;
1705                 pid_t pid = 0;
1706                 unsigned int count;
1707
1708                 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1709
1710                 count = _tdm_vblank_get_waiting_count(v);
1711
1712                 TDM_SNPRINTF(reply, len, "%-8s(%p) ", v->name, v);
1713                 TDM_SNPRINTF(reply, len, "%-4s ", (v->last_type == VBLANK_EVENT_TYPE_HW) ? "HW" : "SW");
1714                 TDM_SNPRINTF(reply, len, "%-4s ", (count > 0) ? "O" : " ");
1715                 TDM_SNPRINTF(reply, len, "%-8d ", v->last_interval);
1716                 TDM_SNPRINTF(reply, len, "%-8u ", v->last_seq);
1717                 TDM_SNPRINTF(reply, len, "%-3u ", v->fps);
1718                 TDM_SNPRINTF(reply, len, "%-6u ", v->ignore_global_fps);
1719                 TDM_SNPRINTF(reply, len, "%-6d ", v->offset);
1720                 TDM_SNPRINTF(reply, len, "%-4u ", v->enable_fake);
1721                 TDM_SNPRINTF(reply, len, "%s(pid:%d)\n", (proc_name) ? proc_name : "Unknown", pid);
1722         }
1723         pthread_mutex_unlock(&valid_list_lock);
1724
1725         TDM_SNPRINTF(reply, len, "\n");
1726 }
1727 /* LCOV_EXCL_STOP */
1728