1 /**************************************************************************
5 * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
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>
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:
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
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.
34 **************************************************************************/
40 #include "tdm_private.h"
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.
51 * - aligned by HW vblank
52 * - use a tdm_event_loop_source object only.
55 #define TDM_VBLANK_DEFAULT_VREFRESH 30
57 /* We expact "(unsigned int)(0.0016667 / 0.0016667) = 1". But it becomes 0. */
58 #define TDM_TIME_MARGIN 0.0000001
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 */
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.
67 #define TDM_VBLANK_SEQ_REACHED_MAX(seq, last_seq) \
68 ((seq) < TDM_VBLANK_UINT_1Q && TDM_VBLANK_UINT_3Q < (last_seq))
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)
80 } tdm_vblank_wait_type;
83 VBLANK_EVENT_TYPE_NONE,
86 } tdm_vblank_event_type;
88 typedef struct _tdm_vblank_wait_info tdm_vblank_wait_info;
90 typedef struct _tdm_private_vblank {
91 struct list_head valid_link;
98 tdm_output_conn_status connection;
99 unsigned int vrefresh;
101 tdm_vblank_event_type last_type;
102 unsigned int check_HW_or_SW;
103 char name[TDM_NAME_LEN];
105 unsigned int fps_changeable;
106 unsigned int fps_fixed;
108 unsigned int enable_fake;
109 unsigned int ignore_global_fps;
110 unsigned int in_create_handler;
113 unsigned int quotient;
116 unsigned int last_seq;
119 unsigned int add_front;
120 struct wl_resource *resource;
123 double HW_vblank_gap;
124 struct list_head HW_wait_list;
127 tdm_event_loop_source *SW_timer;
128 struct list_head SW_wait_list;
131 tdm_event_loop_source *timeout_timer;
132 } tdm_private_vblank;
134 struct _tdm_vblank_wait_info {
135 struct list_head link;
136 struct list_head valid_link;
141 unsigned int interval;
144 tdm_vblank_handler func;
146 tdm_private_vblank *private_vblank;
148 tdm_vblank_wait_type type;
151 unsigned int target_seq;
154 typedef struct _tdm_vblank_create_handler_info {
155 struct list_head link;
157 tdm_vblank_create_handler func;
159 } tdm_vblank_create_handler_info;
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.
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;
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,
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);
183 _print_list(struct list_head *list)
185 tdm_vblank_wait_info *w = NULL;
187 LIST_FOR_EACH_ENTRY(w, list, link) {
188 printf(" %d", w->interval);
195 tdm_vblank_is_valid(tdm_vblank *vblank)
197 tdm_private_vblank *v = NULL;
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);
207 pthread_mutex_unlock(&valid_list_lock);
214 _tdm_vblank_valid_list_add(struct list_head *valid_link, struct list_head *valid_list)
216 pthread_mutex_lock(&valid_list_lock);
217 LIST_ADDTAIL(valid_link, valid_list);
218 pthread_mutex_unlock(&valid_list_lock);
222 _tdm_vblank_valid_list_del(struct list_head *valid_link)
224 pthread_mutex_lock(&valid_list_lock);
225 LIST_DEL(valid_link);
226 pthread_mutex_unlock(&valid_list_lock);
229 static inline tdm_private_vblank*
230 _tdm_vblank_find(double vblank_stamp)
232 tdm_private_vblank *v = NULL;
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);
244 pthread_mutex_unlock(&valid_list_lock);
249 static inline unsigned int
250 _tdm_vblank_check_valid_wait(tdm_vblank_wait_info *wait_info)
252 tdm_vblank_wait_info *w = NULL;
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);
264 pthread_mutex_unlock(&valid_list_lock);
269 static inline unsigned int
270 _tdm_vblank_find_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
272 tdm_vblank_wait_info *w = NULL;
277 LIST_FOR_EACH_ENTRY(w, list, link) {
278 if (w->stamp == wait_info->stamp)
286 _tdm_vblank_insert_wait(tdm_vblank_wait_info *wait_info, struct list_head *list)
288 tdm_vblank_wait_info *w = NULL;
289 tdm_vblank_wait_info *found = NULL;
291 if (LIST_IS_EMPTY(list)) {
292 LIST_ADDTAIL(&wait_info->link, list);
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) {
305 if (w->interval <= wait_info->interval) {
313 LIST_ADD(&wait_info->link, &found->link);
315 LIST_ADDTAIL(&wait_info->link, list->next);
319 _tdm_vblank_change_to_SW(tdm_private_vblank *private_vblank)
321 tdm_vblank_wait_info *w = NULL, *ww = NULL;
323 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
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);
330 w->type = VBLANK_TYPE_SW_FAKE;
331 _tdm_vblank_wait_SW(w);
336 _tdm_vblank_free_HW_wait(tdm_private_vblank *private_vblank, tdm_error error, unsigned int call_cb)
338 tdm_vblank_wait_info *w = NULL, *ww = NULL;
340 if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list)) {
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);
347 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->HW_wait_list, link) {
349 _tdm_vblank_valid_list_del(&w->valid_link);
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);
355 VDB("wait(%p) last(%.6f) sequence(%u) done (error:%d, call_cb:%u)",
356 w, 0, w->target_seq, error, call_cb);
358 if (call_cb && w->func)
359 w->func(private_vblank, error, 0, 0, 0, w->user_data);
366 _tdm_vblank_update_output_info(tdm_private_vblank *private_vblank)
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;
373 ret = tdm_output_get_conn_status(output, &connection);
374 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
376 if (connection == TDM_OUTPUT_CONN_STATUS_MODE_SETTED) {
377 const tdm_output_mode *mode = NULL;
378 tdm_output_get_mode(output, &mode);
380 vrefresh = mode->vrefresh;
382 VWR("mode not setted!!!");
385 private_vblank->connection = connection;
386 private_vblank->vrefresh = vrefresh;
387 private_vblank->HW_vblank_gap = 1.0 / private_vblank->vrefresh;
389 if (private_vblank->fps_changeable)
390 private_vblank->fps = vrefresh;
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);
397 /* LCOV_EXCL_START */
399 _tdm_vblank_cb_output_change(tdm_output *output, tdm_output_change_type type,
400 tdm_value value, void *user_data)
402 tdm_private_vblank *private_vblank = user_data;
404 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
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);
414 tdm_display_lock(private_vblank->dpy);
415 _tdm_vblank_timeout_timer_update(private_vblank, 0);
416 tdm_display_unlock(private_vblank->dpy);
418 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_DPMS_OFF, 1);
422 case TDM_OUTPUT_CHANGE_CONNECTION:
423 if (private_vblank->connection == value.u32)
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);
432 tdm_display_lock(private_vblank->dpy);
433 _tdm_vblank_timeout_timer_update(private_vblank, 0);
434 tdm_display_unlock(private_vblank->dpy);
436 _tdm_vblank_free_HW_wait(private_vblank, TDM_ERROR_OUTPUT_DISCONNECTED, 1);
447 tdm_vblank_set_client_vblank_fps(unsigned int pid, const char *name, unsigned int fps)
449 tdm_private_vblank *v = NULL;
451 TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
452 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
454 TDM_INFO("pid: %u, name: %s, fps: %d", pid, name, fps);
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;
464 client = wl_resource_get_client(v->resource);
468 wl_client_get_credentials(client, &client_pid, NULL, NULL);
470 if (client_pid != pid)
473 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
474 if (strncmp(v->name, name, TDM_NAME_LEN))
478 tdm_vblank_set_fps(v, fps);
480 TDM_INFO("(pid:%u) '%s' fps changed: %d", pid, v->name, fps);
482 pthread_mutex_unlock(&valid_list_lock);
484 return TDM_ERROR_NONE;
488 tdm_vblank_set_client_ignore_global_fps(unsigned int pid, const char *name, unsigned int ignore)
490 tdm_private_vblank *v = NULL;
492 TDM_RETURN_VAL_IF_FAIL(pid > 0, TDM_ERROR_INVALID_PARAMETER);
494 TDM_INFO("pid: %u, name: %s, ignore: %u", pid, name, ignore);
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;
504 client = wl_resource_get_client(v->resource);
508 wl_client_get_credentials(client, &client_pid, NULL, NULL);
510 if (client_pid != pid)
513 if (name && strncmp(name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN)) {
514 if (strncmp(v->name, name, TDM_NAME_LEN))
518 tdm_vblank_ignore_global_fps(v, ignore);
520 TDM_INFO("(pid:%u) '%s' ignore changed: %u", pid, v->name, ignore);
522 pthread_mutex_unlock(&valid_list_lock);
524 return TDM_ERROR_NONE;
528 tdm_vblank_enable_global_fps(unsigned int enable, unsigned int fps)
530 tdm_private_vblank *v = NULL;
533 TDM_RETURN_VAL_IF_FAIL(fps > 0, TDM_ERROR_INVALID_PARAMETER);
535 TDM_INFO("global fps: %s fps(%d)", (enable) ? "enabled" : "disabled", fps);
537 pthread_mutex_lock(&valid_list_lock);
539 vblank_global_fps = (enable) ? fps : 0;
541 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
542 /* skip if vblank is created in server side */
546 v->check_HW_or_SW = 1;
548 pthread_mutex_unlock(&valid_list_lock);
550 return TDM_ERROR_NONE;
554 tdm_vblank_cb_vblank_create(tdm_vblank *vblank, double vblank_stamp)
556 tdm_private_vblank *private_vblank;
557 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
559 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
562 private_vblank = vblank;
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;
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;
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;
580 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_create.base);
581 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
583 return TDM_ERROR_NONE;
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;
592 return TDM_ERROR_NONE;
596 tdm_vblank_add_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
598 tdm_vblank_create_handler_info *ch_info;
600 TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
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
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;
611 ch_info = calloc(1, sizeof *ch_info);
612 TDM_RETURN_VAL_IF_FAIL(ch_info != NULL, TDM_ERROR_OUT_OF_MEMORY);
614 ch_info->func = func;
615 ch_info->user_data = user_data;
617 LIST_ADDTAIL(&ch_info->link, &create_handler_list);
619 return TDM_ERROR_NONE;
623 tdm_vblank_remove_create_handler(tdm_display *dpy, tdm_vblank_create_handler func, void *user_data)
625 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
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
631 if (!tdm_thread_in_display_thread(syscall(SYS_gettid))) {
632 TDM_ERR("remove_create_handler should be called in main thread");
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)
640 LIST_DEL(&ch_info->link);
647 tdm_vblank_init(tdm_display *dpy)
649 if (vblank_list_inited)
650 return TDM_ERROR_NONE;
652 if (pthread_mutex_init(&valid_list_lock, NULL)) {
653 TDM_ERR("mutex init failed: %m");
654 return TDM_ERROR_OUT_OF_MEMORY;
657 LIST_INITHEAD(&valid_vblank_list);
658 LIST_INITHEAD(&valid_wait_list);
659 LIST_INITHEAD(&create_handler_list);
661 vblank_list_inited = 1;
663 return TDM_ERROR_NONE;
667 tdm_vblank_deinit(tdm_display *dpy)
669 tdm_vblank_create_handler_info *ch_info = NULL, *hh = NULL;
671 if (!vblank_list_inited)
674 if (!LIST_IS_EMPTY(&valid_vblank_list))
675 TDM_NEVER_GET_HERE();
677 if (!LIST_IS_EMPTY(&valid_wait_list))
678 TDM_NEVER_GET_HERE();
680 LIST_FOR_EACH_ENTRY_SAFE(ch_info, hh, &create_handler_list, link) {
681 LIST_DEL(&ch_info->link);
685 pthread_mutex_destroy(&valid_list_lock);
687 vblank_list_inited = 0;
691 tdm_vblank_create(tdm_display *dpy, tdm_output *output, tdm_error *error)
693 tdm_private_vblank *private_vblank;
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);
700 *error = TDM_ERROR_NONE;
702 private_vblank = calloc(1, sizeof * private_vblank);
703 if (!private_vblank) {
704 /* LCOV_EXCL_START */
706 *error = TDM_ERROR_OUT_OF_MEMORY;
707 TDM_ERR("alloc failed");
712 tdm_output_add_change_handler(output, _tdm_vblank_cb_output_change, private_vblank);
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;
722 _tdm_vblank_update_output_info(private_vblank);
724 strncpy(private_vblank->name, TDM_VBLANK_DEFAULT_NAME, TDM_NAME_LEN - 1);
725 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
727 LIST_INITHEAD(&private_vblank->HW_wait_list);
728 LIST_INITHEAD(&private_vblank->SW_wait_list);
730 _tdm_vblank_valid_list_add(&private_vblank->valid_link, &valid_vblank_list);
732 VIN("created. vrefresh(%d) connection(%d)",
733 private_vblank->vrefresh, private_vblank->connection);
735 tdm_display_lock(private_vblank->dpy);
736 tdm_vblank_cb_vblank_create(NULL, private_vblank->stamp);
737 tdm_display_unlock(private_vblank->dpy);
739 return (tdm_vblank *)private_vblank;
743 tdm_vblank_destroy(tdm_vblank *vblank)
745 tdm_private_vblank *private_vblank = vblank;
746 tdm_vblank_wait_info *w = NULL, *ww = NULL;
748 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(vblank));
750 if (private_vblank->in_create_handler) {
751 TDM_ERR("NOT allowed to be called in a create handler");
755 _tdm_vblank_valid_list_del(&private_vblank->valid_link);
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);
763 tdm_output_remove_change_handler(private_vblank->output,
764 _tdm_vblank_cb_output_change, private_vblank);
766 _tdm_vblank_free_HW_wait(private_vblank, 0, 0);
768 if (!LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
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);
775 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
777 _tdm_vblank_valid_list_del(&w->valid_link);
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);
789 free(private_vblank);
793 tdm_vblank_get_client_pid(tdm_vblank *vblank, pid_t *pid)
795 tdm_private_vblank *private_vblank = vblank;
796 struct wl_client *client;
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);
801 if (!private_vblank->resource) {
803 return TDM_ERROR_NONE;
806 client = wl_resource_get_client(private_vblank->resource);
809 return TDM_ERROR_NONE;
812 wl_client_get_credentials(client, pid, NULL, NULL);
814 return TDM_ERROR_NONE;
818 tdm_vblank_set_name(tdm_vblank *vblank, const char *name)
820 tdm_private_vblank *private_vblank = vblank;
822 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
825 name = TDM_VBLANK_DEFAULT_NAME;
827 strncpy(private_vblank->name, name, TDM_NAME_LEN - 1);
828 private_vblank->name[TDM_NAME_LEN - 1] = '\0';
830 VIN("name(%s)", name);
832 return TDM_ERROR_NONE;
836 tdm_vblank_get_name(tdm_vblank *vblank, const char **name)
838 tdm_private_vblank *private_vblank = vblank;
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);
843 *name = (const char*)private_vblank->name;
845 return TDM_ERROR_NONE;
849 tdm_vblank_set_fps(tdm_vblank *vblank, unsigned int fps)
851 tdm_private_vblank *private_vblank = vblank;
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);
856 if (private_vblank->fps_fixed) {
857 VIN("fps(%d) can't be changed", private_vblank->fps);
858 return TDM_ERROR_NONE;
861 private_vblank->fps_changeable = 0;
863 if (private_vblank->fps == fps)
864 return TDM_ERROR_NONE;
866 private_vblank->fps = fps;
867 private_vblank->check_HW_or_SW = 1;
869 VIN("fps(%d) changed", fps);
871 return TDM_ERROR_NONE;
875 tdm_vblank_get_fps(tdm_vblank *vblank, unsigned int *fps)
877 tdm_private_vblank *private_vblank = vblank;
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);
882 *fps = private_vblank->fps;
884 return TDM_ERROR_NONE;
888 tdm_vblank_set_fixed_fps(tdm_vblank *vblank, unsigned int fps)
890 tdm_private_vblank *private_vblank = vblank;
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);
895 private_vblank->fps_changeable = 0;
896 private_vblank->fps_fixed = 1;
898 if (private_vblank->fps == fps)
899 return TDM_ERROR_NONE;
901 private_vblank->fps = fps;
902 private_vblank->check_HW_or_SW = 1;
904 VIN("fps(%d) fixed", fps);
906 return TDM_ERROR_NONE;
910 tdm_vblank_ignore_global_fps(tdm_vblank *vblank, unsigned int ignore)
912 tdm_private_vblank *private_vblank = vblank;
914 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
916 if (private_vblank->ignore_global_fps == ignore)
917 return TDM_ERROR_NONE;
919 private_vblank->ignore_global_fps = ignore;
920 private_vblank->check_HW_or_SW = 1;
922 VIN("ignore_global_fps(%d)", private_vblank->ignore_global_fps);
924 return TDM_ERROR_NONE;
928 tdm_vblank_set_offset(tdm_vblank *vblank, int offset)
930 tdm_private_vblank *private_vblank = vblank;
932 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
934 if (private_vblank->offset == offset)
935 return TDM_ERROR_NONE;
937 private_vblank->offset = offset;
938 private_vblank->check_HW_or_SW = 1;
940 VIN("offset(%d)", private_vblank->offset);
942 return TDM_ERROR_NONE;
946 tdm_vblank_get_offset(tdm_vblank *vblank, int *offset)
948 tdm_private_vblank *private_vblank = vblank;
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);
953 *offset = private_vblank->offset;
955 return TDM_ERROR_NONE;
959 tdm_vblank_set_enable_fake(tdm_vblank *vblank, unsigned int enable_fake)
961 tdm_private_vblank *private_vblank = vblank;
963 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
965 if (private_vblank->enable_fake == enable_fake)
966 return TDM_ERROR_NONE;
968 private_vblank->enable_fake = enable_fake;
970 VIN("enable_fake(%d)", private_vblank->enable_fake);
972 return TDM_ERROR_NONE;
976 tdm_vblank_get_enable_fake(tdm_vblank *vblank, unsigned int *enable_fake)
978 tdm_private_vblank *private_vblank = vblank;
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);
983 *enable_fake = private_vblank->enable_fake;
985 return TDM_ERROR_NONE;
989 _tdm_vblank_timeout_timer_cb(void *user_data)
991 tdm_private_vblank *private_vblank = user_data;
992 tdm_vblank_wait_info *w = NULL;
994 const char *proc_name;
996 TDM_RETURN_VAL_IF_FAIL(private_vblank != NULL, TDM_ERROR_OPERATION_FAILED);
998 _tdm_vblank_get_client_information(private_vblank, &pid, &proc_name);
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);
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);
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);
1014 return TDM_ERROR_NONE;
1018 _tdm_vblank_timeout_timer_update(tdm_private_vblank *private_vblank, int ms_delay)
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,
1028 if (!private_vblank->timeout_timer) {
1029 VER("couldn't add timer");
1032 VIN("Create Timeout timer");
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");
1042 VDB("timeout timer updated");
1044 VDB("timeout timer disabled");
1048 _tdm_vblank_sw_timer_update(tdm_private_vblank *private_vblank)
1050 tdm_vblank_wait_info *first_wait_info = NULL;
1051 double curr, target;
1055 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1056 VER("no wait_info");
1057 return TDM_ERROR_OPERATION_FAILED;
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;
1064 /* ms_delay should be more that 1 */
1068 ms_delay = ceil((target - curr) * 1000.0);
1073 if (ms_delay > 5000)
1074 VER("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1076 VDB("wait(%p) curr(%.6f) target(%.6f) ms_delay(%d)", first_wait_info, curr, target, ms_delay);
1078 tdm_display_lock(private_vblank->dpy);
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,
1086 if (!private_vblank->SW_timer) {
1087 tdm_display_unlock(private_vblank->dpy);
1088 VER("couldn't add timer");
1091 VIN("Create SW timer");
1094 private_vblank->last_interval = ms_delay;
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");
1102 /* LCOV_EXCL_STOP */
1105 tdm_display_unlock(private_vblank->dpy);
1107 return TDM_ERROR_NONE;
1111 _tdm_vblank_cb_vblank_HW(tdm_output *output, unsigned int sequence,
1112 unsigned int tv_sec, unsigned int tv_usec,
1115 tdm_vblank_wait_info *wait_info = user_data;
1116 tdm_private_vblank *private_vblank;
1118 if (!_tdm_vblank_check_valid_wait(wait_info)) {
1119 TDM_ERR("can't find wait(%p) from valid_wait_list", wait_info);
1123 private_vblank = wait_info->private_vblank;
1124 TDM_RETURN_IF_FAIL(tdm_vblank_is_valid(private_vblank));
1126 if (!_tdm_vblank_find_wait(wait_info, &private_vblank->HW_wait_list)) {
1127 VER("can't find wait(%p)", wait_info);
1131 if (wait_info->type == VBLANK_TYPE_HW_SW) {
1134 LIST_DEL(&wait_info->link);
1136 /* kernel sends the wrong time of first vblank event. and the time of
1137 * second vblank is correct.
1139 wait_info->target_time = TDM_TIME(tv_sec, tv_usec);
1140 wait_info->target_time += (((double)private_vblank->offset) / 1000.0);
1142 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
1144 ret = _tdm_vblank_sw_timer_update(private_vblank);
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);
1152 VER("couldn't update sw timer");
1155 tdm_display_lock(private_vblank->dpy);
1156 _tdm_vblank_timeout_timer_update(private_vblank, 0);
1157 tdm_display_unlock(private_vblank->dpy);
1159 LIST_DEL(&wait_info->link);
1160 _tdm_vblank_valid_list_del(&wait_info->valid_link);
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.
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);
1173 private_vblank->last_seq = wait_info->target_seq;
1174 private_vblank->last_time = TDM_TIME(tv_sec, tv_usec);
1176 VDB("wait(%p) last(%.6f) sequence(%u) done", wait_info, private_vblank->last_time, wait_info->target_seq);
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);
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);
1189 _tdm_vblank_wait_HW(tdm_vblank_wait_info *wait_info)
1191 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1195 if (private_vblank->last_type != VBLANK_EVENT_TYPE_HW) {
1196 VIN("Use HW vblank");
1197 private_vblank->last_type = VBLANK_EVENT_TYPE_HW;
1200 _tdm_vblank_insert_wait(wait_info, &private_vblank->HW_wait_list);
1202 if (private_vblank->last_time == 0) {
1203 hw_interval = wait_info->interval * private_vblank->quotient;
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();
1209 /* +1 ms to call the handler ASAP at the first. no matter for SW timer. */
1210 wait_info->target_seq = 1;
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);
1215 double last, prev, req, curr, target;
1218 last = private_vblank->last_time;
1219 req = wait_info->req_time;
1221 /* make sure that req time is bigger than last. */
1225 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1226 prev = last + private_vblank->vblank_gap * skip;
1228 curr = tdm_helper_get_time();
1230 while (target < curr)
1231 target += (private_vblank->vblank_gap * wait_info->interval);
1233 hw_interval = (unsigned int)((target - curr) / private_vblank->HW_vblank_gap + TDM_TIME_MARGIN) + 1;
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);
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);
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);
1248 private_vblank->last_interval = hw_interval;
1249 wait_info->hw_interval = hw_interval;
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);
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);
1258 ret = tdm_output_wait_vblank(private_vblank->output, hw_interval, 0,
1259 _tdm_vblank_cb_vblank_HW, wait_info);
1261 if (ret != TDM_ERROR_NONE) {
1262 LIST_DEL(&wait_info->link);
1266 VDB("wait(%p) waiting", wait_info);
1268 return TDM_ERROR_NONE;
1272 _tdm_vblank_cb_vblank_SW(void *user_data)
1274 tdm_private_vblank *private_vblank = user_data;
1276 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(private_vblank), TDM_ERROR_OPERATION_FAILED);
1278 return tdm_vblank_cb_vblank_SW(private_vblank, 0);
1282 tdm_vblank_cb_vblank_SW(tdm_vblank *vblank, double vblank_stamp)
1284 tdm_private_vblank *private_vblank;
1285 tdm_vblank_wait_info *first_wait_info = NULL, *w = NULL, *ww = NULL;
1287 TDM_RETURN_VAL_IF_FAIL(vblank || vblank_stamp > 0, TDM_ERROR_INVALID_PARAMETER);
1290 private_vblank = vblank;
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;
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;
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;
1308 ret = tdm_thread_send_cb(private_display->private_loop, &vblank_sw.base);
1309 TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
1311 return TDM_ERROR_NONE;
1314 if (LIST_IS_EMPTY(&private_vblank->SW_wait_list)) {
1315 VER("no wait_info");
1316 return TDM_ERROR_OPERATION_FAILED;
1319 if (!LIST_IS_EMPTY(&private_vblank->HW_wait_list))
1320 TDM_NEVER_GET_HERE();
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);
1325 _tdm_vblank_timeout_timer_update(private_vblank, 0);
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);
1330 private_vblank->last_seq = first_wait_info->target_seq;
1331 private_vblank->last_time = first_wait_info->target_time;
1333 VDB("wait(%p) last(%.6f) sequence(%u) done", first_wait_info, private_vblank->last_time, first_wait_info->target_seq);
1335 LIST_FOR_EACH_ENTRY_SAFE(w, ww, &private_vblank->SW_wait_list, link) {
1336 if (w->target_time != first_wait_info->target_time)
1340 _tdm_vblank_valid_list_del(&w->valid_link);
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),
1347 tdm_display_lock(private_vblank->dpy);
1353 return TDM_ERROR_NONE;
1357 _tdm_vblank_wait_SW(tdm_vblank_wait_info *wait_info)
1359 tdm_private_vblank *private_vblank = wait_info->private_vblank;
1362 if (private_vblank->last_type != VBLANK_EVENT_TYPE_SW) {
1363 VIN("Use SW vblank");
1364 private_vblank->last_type = VBLANK_EVENT_TYPE_SW;
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();
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;
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);
1379 double last, prev, req, curr, target;
1382 last = private_vblank->last_time;
1383 req = wait_info->req_time;
1385 /* make sure that req time is bigger than last. */
1389 skip = (unsigned int)((req - last) / private_vblank->vblank_gap + TDM_TIME_MARGIN);
1390 prev = last + private_vblank->vblank_gap * skip;
1392 curr = tdm_helper_get_time();
1393 target = prev + private_vblank->vblank_gap * wait_info->interval;
1395 while (target < curr)
1396 target += private_vblank->vblank_gap;
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);
1401 wait_info->target_time = target;
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);
1408 _tdm_vblank_insert_wait(wait_info, &private_vblank->SW_wait_list);
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");
1416 /* LCOV_EXCL_STOP */
1419 return TDM_ERROR_NONE;
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)
1426 tdm_private_vblank *private_vblank = vblank;
1427 tdm_vblank_wait_info *wait_info;
1428 tdm_output_dpms dpms = TDM_OUTPUT_DPMS_OFF;
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);
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;
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;
1445 tdm_output_get_dpms(private_vblank->output, &dpms);
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;
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;
1458 wait_info = calloc(1, sizeof * wait_info);
1460 /* LCOV_EXCL_START */
1461 VER("alloc failed");
1462 return TDM_ERROR_OUT_OF_MEMORY;
1463 /* LCOV_EXCL_STOP */
1465 _tdm_vblank_update_output_info(private_vblank);
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);
1474 LIST_INITHEAD(&wait_info->link);
1476 _tdm_vblank_valid_list_add(&wait_info->valid_link, &valid_wait_list);
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;
1485 if (private_vblank->ignore_global_fps ||
1486 vblank_global_fps == 0 ||
1487 private_vblank->fps < vblank_global_fps)
1488 fps = private_vblank->fps;
1490 fps = vblank_global_fps;
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;
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.
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;
1512 wait_info->type = VBLANK_TYPE_HW_SW;
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);
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);
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);
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);
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);
1541 /* LCOV_EXCL_STOP */
1544 tdm_display_lock(private_vblank->dpy);
1545 _tdm_vblank_timeout_timer_update(private_vblank, 1000);
1546 tdm_display_unlock(private_vblank->dpy);
1548 return TDM_ERROR_NONE;
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)
1555 tdm_private_vblank *private_vblank = vblank;
1556 unsigned int interval;
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);
1561 /* if the sequence of vblank reaches the max value, sequence can be 0. */
1563 if (private_vblank->last_seq == 0) {
1564 VWR("can't calculate interval with sequence(%u)", sequence);
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;
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);
1574 /* If target is old or too close(1ms) to current, we call the handler immediately.
1575 * 2ms? it seems too much.
1577 if (seq_target < curr) {
1578 func(vblank, TDM_ERROR_NONE, sequence,
1579 TDM_TIME_SEC(seq_target), TDM_TIME_USEC(seq_target),
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),
1586 return TDM_ERROR_NONE;
1589 interval = (unsigned int)((seq_target - curr) / private_vblank->vblank_gap + TDM_TIME_MARGIN) + 1;
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),
1596 return TDM_ERROR_NONE;
1599 return tdm_vblank_wait(vblank, req_sec, req_usec, interval, func, user_data);
1602 /* LCOV_EXCL_START */
1604 tdm_vblank_set_add_front(tdm_vblank *vblank, unsigned int add_front)
1606 tdm_private_vblank *private_vblank = vblank;
1608 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1610 TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), TDM_ERROR_OPERATION_FAILED);
1612 if (private_vblank->add_front == add_front)
1613 return TDM_ERROR_NONE;
1615 private_vblank->add_front = add_front;
1617 return TDM_ERROR_NONE;
1619 /* LCOV_EXCL_STOP */
1622 tdm_vblank_set_resource(tdm_vblank *vblank, struct wl_resource *resource)
1624 tdm_private_vblank *private_vblank = vblank;
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);
1629 private_vblank->resource = resource;
1631 return TDM_ERROR_NONE;
1635 tdm_vblank_get_stamp(tdm_vblank *vblank)
1637 tdm_private_vblank *private_vblank = vblank;
1639 TDM_RETURN_VAL_IF_FAIL(tdm_vblank_is_valid(vblank), TDM_ERROR_INVALID_PARAMETER);
1641 return private_vblank->stamp;
1645 _tdm_vblank_get_waiting_count(tdm_private_vblank *private_vblank)
1647 tdm_vblank_wait_info *wait_info = NULL;
1648 unsigned int count = 0;
1650 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->HW_wait_list, link) {
1654 LIST_FOR_EACH_ENTRY(wait_info, &private_vblank->SW_wait_list, link) {
1662 _tdm_vblank_get_client_information(tdm_private_vblank *private_vblank, pid_t *pid, const char **name)
1664 struct wl_client *client;
1666 if (!private_vblank->resource)
1669 client = wl_resource_get_client(private_vblank->resource);
1673 wl_client_get_credentials(client, pid, NULL, NULL);
1674 *name = tdm_server_get_client_name(*pid);
1684 /* LCOV_EXCL_START */
1686 tdm_vblank_get_vblank_list_information(tdm_display *dpy, char *reply, int *len)
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);
1693 tdm_output_get_dpms(output, &dpms);
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");
1702 pthread_mutex_lock(&valid_list_lock);
1703 LIST_FOR_EACH_ENTRY(v, &valid_vblank_list, valid_link) {
1704 const char *proc_name = NULL;
1708 _tdm_vblank_get_client_information(v, &pid, &proc_name);
1710 count = _tdm_vblank_get_waiting_count(v);
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);
1723 pthread_mutex_unlock(&valid_list_lock);
1725 TDM_SNPRINTF(reply, len, "\n");
1727 /* LCOV_EXCL_STOP */