72 	struct snd_timer_instance *timeri;  member
152 	struct snd_timer_instance *timeri;  in snd_timer_instance_new()  local
154 	timeri = kzalloc(sizeof(*timeri), GFP_KERNEL);  in snd_timer_instance_new()
155 	if (timeri == NULL)  in snd_timer_instance_new()
157 	timeri->owner = kstrdup(owner, GFP_KERNEL);  in snd_timer_instance_new()
158 	if (! timeri->owner) {  in snd_timer_instance_new()
159 		kfree(timeri);  in snd_timer_instance_new()
162 	INIT_LIST_HEAD(&timeri->open_list);  in snd_timer_instance_new()
163 	INIT_LIST_HEAD(&timeri->active_list);  in snd_timer_instance_new()
164 	INIT_LIST_HEAD(&timeri->ack_list);  in snd_timer_instance_new()
165 	INIT_LIST_HEAD(&timeri->slave_list_head);  in snd_timer_instance_new()
166 	INIT_LIST_HEAD(&timeri->slave_active_head);  in snd_timer_instance_new()
168 	return timeri;  in snd_timer_instance_new()
172 void snd_timer_instance_free(struct snd_timer_instance *timeri)  in snd_timer_instance_free()  argument
174 	if (timeri) {  in snd_timer_instance_free()
175 		if (timeri->private_free)  in snd_timer_instance_free()
176 			timeri->private_free(timeri);  in snd_timer_instance_free()
177 		kfree(timeri->owner);  in snd_timer_instance_free()
178 		kfree(timeri);  in snd_timer_instance_free()
292 static void snd_timer_close_locked(struct snd_timer_instance *timeri,
299 int snd_timer_open(struct snd_timer_instance *timeri,  in snd_timer_open()  argument
321 		timeri->slave_class = tid->dev_sclass;  in snd_timer_open()
322 		timeri->slave_id = tid->device;  in snd_timer_open()
323 		timeri->flags |= SNDRV_TIMER_IFLG_SLAVE;  in snd_timer_open()
324 		list_add_tail(&timeri->open_list, &snd_timer_slave_list);  in snd_timer_open()
326 		err = snd_timer_check_slave(timeri);  in snd_timer_open()
375 	timeri->timer = timer;  in snd_timer_open()
376 	timeri->slave_class = tid->dev_sclass;  in snd_timer_open()
377 	timeri->slave_id = slave_id;  in snd_timer_open()
379 	list_add_tail(&timeri->open_list, &timer->open_list_head);  in snd_timer_open()
381 	err = snd_timer_check_master(timeri);  in snd_timer_open()
384 		snd_timer_close_locked(timeri, &card_dev_to_put);  in snd_timer_open()
396 static void remove_slave_links(struct snd_timer_instance *timeri,  in remove_slave_links()  argument
403 	timeri->timer = NULL;  in remove_slave_links()
404 	list_for_each_entry_safe(slave, tmp, &timeri->slave_list_head, open_list) {  in remove_slave_links()
418 static void snd_timer_close_locked(struct snd_timer_instance *timeri,  in snd_timer_close_locked()  argument
421 	struct snd_timer *timer = timeri->timer;  in snd_timer_close_locked()
425 		timeri->flags |= SNDRV_TIMER_IFLG_DEAD;  in snd_timer_close_locked()
428 	if (!list_empty(&timeri->open_list)) {  in snd_timer_close_locked()
429 		list_del_init(&timeri->open_list);  in snd_timer_close_locked()
430 		if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)  in snd_timer_close_locked()
435 	snd_timer_stop(timeri);  in snd_timer_close_locked()
441 		while (timeri->flags & SNDRV_TIMER_IFLG_CALLBACK) {  in snd_timer_close_locked()
448 		remove_slave_links(timeri, timer);  in snd_timer_close_locked()
451 		if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)  in snd_timer_close_locked()
468 void snd_timer_close(struct snd_timer_instance *timeri)  in snd_timer_close()  argument
472 	if (snd_BUG_ON(!timeri))  in snd_timer_close()
476 		snd_timer_close_locked(timeri, &card_dev_to_put);  in snd_timer_close()
491 unsigned long snd_timer_resolution(struct snd_timer_instance *timeri)  in snd_timer_resolution()  argument
496 	if (timeri == NULL)  in snd_timer_resolution()
498 	timer = timeri->timer;  in snd_timer_resolution()
540 static int snd_timer_start1(struct snd_timer_instance *timeri,  in snd_timer_start1()  argument
546 	timer = timeri->timer;  in snd_timer_start1()
551 	if (timeri->flags & SNDRV_TIMER_IFLG_DEAD)  in snd_timer_start1()
555 	if (timeri->flags & (SNDRV_TIMER_IFLG_RUNNING |  in snd_timer_start1()
568 		timeri->ticks = timeri->cticks = ticks;  in snd_timer_start1()
569 	else if (!timeri->cticks)  in snd_timer_start1()
570 		timeri->cticks = 1;  in snd_timer_start1()
571 	timeri->pticks = 0;  in snd_timer_start1()
573 	list_move_tail(&timeri->active_list, &timer->active_list_head);  in snd_timer_start1()
578 		timeri->flags |= SNDRV_TIMER_IFLG_START;  in snd_timer_start1()
586 		timeri->flags |= SNDRV_TIMER_IFLG_RUNNING;  in snd_timer_start1()
589 	snd_timer_notify1(timeri, start ? SNDRV_TIMER_EVENT_START :  in snd_timer_start1()
595 static int snd_timer_start_slave(struct snd_timer_instance *timeri,  in snd_timer_start_slave()  argument
599 	if (timeri->flags & SNDRV_TIMER_IFLG_DEAD)  in snd_timer_start_slave()
601 	if (timeri->flags & SNDRV_TIMER_IFLG_RUNNING)  in snd_timer_start_slave()
603 	timeri->flags |= SNDRV_TIMER_IFLG_RUNNING;  in snd_timer_start_slave()
604 	if (timeri->master && timeri->timer) {  in snd_timer_start_slave()
605 		guard(spinlock)(&timeri->timer->lock);  in snd_timer_start_slave()
606 		list_add_tail(&timeri->active_list,  in snd_timer_start_slave()
607 			      &timeri->master->slave_active_head);  in snd_timer_start_slave()
608 		snd_timer_notify1(timeri, start ? SNDRV_TIMER_EVENT_START :  in snd_timer_start_slave()
615 static int snd_timer_stop1(struct snd_timer_instance *timeri, bool stop)  in snd_timer_stop1()  argument
619 	timer = timeri->timer;  in snd_timer_stop1()
623 	list_del_init(&timeri->ack_list);  in snd_timer_stop1()
624 	list_del_init(&timeri->active_list);  in snd_timer_stop1()
625 	if (!(timeri->flags & (SNDRV_TIMER_IFLG_RUNNING |  in snd_timer_stop1()
631 		timeri->cticks = timeri->ticks;  in snd_timer_stop1()
632 		timeri->pticks = 0;  in snd_timer_stop1()
634 	if ((timeri->flags & SNDRV_TIMER_IFLG_RUNNING) &&  in snd_timer_stop1()
646 	timeri->flags &= ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START);  in snd_timer_stop1()
648 		timeri->flags &= ~SNDRV_TIMER_IFLG_PAUSED;  in snd_timer_stop1()
650 		timeri->flags |= SNDRV_TIMER_IFLG_PAUSED;  in snd_timer_stop1()
651 	snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP :  in snd_timer_stop1()
657 static int snd_timer_stop_slave(struct snd_timer_instance *timeri, bool stop)  in snd_timer_stop_slave()  argument
662 	running = timeri->flags & SNDRV_TIMER_IFLG_RUNNING;  in snd_timer_stop_slave()
663 	timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;  in snd_timer_stop_slave()
664 	if (timeri->timer) {  in snd_timer_stop_slave()
665 		guard(spinlock)(&timeri->timer->lock);  in snd_timer_stop_slave()
666 		list_del_init(&timeri->ack_list);  in snd_timer_stop_slave()
667 		list_del_init(&timeri->active_list);  in snd_timer_stop_slave()
669 			snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP :  in snd_timer_stop_slave()
678 int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks)  in snd_timer_start()  argument
680 	if (timeri == NULL || ticks < 1)  in snd_timer_start()
682 	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)  in snd_timer_start()
683 		return snd_timer_start_slave(timeri, true);  in snd_timer_start()
685 		return snd_timer_start1(timeri, true, ticks);  in snd_timer_start()
694 int snd_timer_stop(struct snd_timer_instance *timeri)  in snd_timer_stop()  argument
696 	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)  in snd_timer_stop()
697 		return snd_timer_stop_slave(timeri, true);  in snd_timer_stop()
699 		return snd_timer_stop1(timeri, true);  in snd_timer_stop()
706 int snd_timer_continue(struct snd_timer_instance *timeri)  in snd_timer_continue()  argument
709 	if (!(timeri->flags & SNDRV_TIMER_IFLG_PAUSED))  in snd_timer_continue()
712 	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)  in snd_timer_continue()
713 		return snd_timer_start_slave(timeri, false);  in snd_timer_continue()
715 		return snd_timer_start1(timeri, false, 0);  in snd_timer_continue()
722 int snd_timer_pause(struct snd_timer_instance * timeri)  in snd_timer_pause()  argument
724 	if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE)  in snd_timer_pause()
725 		return snd_timer_stop_slave(timeri, false);  in snd_timer_pause()
727 		return snd_timer_stop1(timeri, false);  in snd_timer_pause()
1295 static void snd_timer_user_interrupt(struct snd_timer_instance *timeri,  in snd_timer_user_interrupt()  argument
1299 	struct snd_timer_user *tu = timeri->callback_data;  in snd_timer_user_interrupt()
1338 static void snd_timer_user_ccallback(struct snd_timer_instance *timeri,  in snd_timer_user_ccallback()  argument
1343 	struct snd_timer_user *tu = timeri->callback_data;  in snd_timer_user_ccallback()
1362 static void snd_timer_user_disconnect(struct snd_timer_instance *timeri)  in snd_timer_user_disconnect()  argument
1364 	struct snd_timer_user *tu = timeri->callback_data;  in snd_timer_user_disconnect()
1370 static void snd_timer_user_tinterrupt(struct snd_timer_instance *timeri,  in snd_timer_user_tinterrupt()  argument
1374 	struct snd_timer_user *tu = timeri->callback_data;  in snd_timer_user_tinterrupt()
1487 			if (tu->timeri) {  in snd_timer_user_release()
1488 				snd_timer_close(tu->timeri);  in snd_timer_user_release()
1489 				snd_timer_instance_free(tu->timeri);  in snd_timer_user_release()
1713 	if (tu->timeri) {  in snd_timer_user_tselect()
1714 		snd_timer_close(tu->timeri);  in snd_timer_user_tselect()
1715 		snd_timer_instance_free(tu->timeri);  in snd_timer_user_tselect()
1716 		tu->timeri = NULL;  in snd_timer_user_tselect()
1725 	tu->timeri = snd_timer_instance_new(str);  in snd_timer_user_tselect()
1726 	if (!tu->timeri) {  in snd_timer_user_tselect()
1731 	tu->timeri->flags |= SNDRV_TIMER_IFLG_FAST;  in snd_timer_user_tselect()
1732 	tu->timeri->callback = tu->tread  in snd_timer_user_tselect()
1734 	tu->timeri->ccallback = snd_timer_user_ccallback;  in snd_timer_user_tselect()
1735 	tu->timeri->callback_data = (void *)tu;  in snd_timer_user_tselect()
1736 	tu->timeri->disconnect = snd_timer_user_disconnect;  in snd_timer_user_tselect()
1738 	err = snd_timer_open(tu->timeri, &tselect.id, current->pid);  in snd_timer_user_tselect()
1740 		snd_timer_instance_free(tu->timeri);  in snd_timer_user_tselect()
1741 		tu->timeri = NULL;  in snd_timer_user_tselect()
1756 	if (!tu->timeri)  in snd_timer_user_info()
1758 	t = tu->timeri->timer;  in snd_timer_user_info()
1786 	if (!tu->timeri)  in snd_timer_user_params()
1788 	t = tu->timeri->timer;  in snd_timer_user_params()
1802 		resolution = snd_timer_resolution(tu->timeri);  in snd_timer_user_params()
1831 	snd_timer_stop(tu->timeri);  in snd_timer_user_params()
1833 		tu->timeri->flags &= ~(SNDRV_TIMER_IFLG_AUTO|  in snd_timer_user_params()
1837 			tu->timeri->flags |= SNDRV_TIMER_IFLG_AUTO;  in snd_timer_user_params()
1839 			tu->timeri->flags |= SNDRV_TIMER_IFLG_EXCLUSIVE;  in snd_timer_user_params()
1841 			tu->timeri->flags |= SNDRV_TIMER_IFLG_EARLY_EVENT;  in snd_timer_user_params()
1851 		if (tu->timeri->flags & SNDRV_TIMER_IFLG_EARLY_EVENT) {  in snd_timer_user_params()
1887 	if (!tu->timeri)  in snd_timer_user_status32()
1892 	status.resolution = snd_timer_resolution(tu->timeri);  in snd_timer_user_status32()
1893 	status.lost = tu->timeri->lost;  in snd_timer_user_status32()
1909 	if (!tu->timeri)  in snd_timer_user_status64()
1914 	status.resolution = snd_timer_resolution(tu->timeri);  in snd_timer_user_status64()
1915 	status.lost = tu->timeri->lost;  in snd_timer_user_status64()
1930 	if (!tu->timeri)  in snd_timer_user_start()
1932 	snd_timer_stop(tu->timeri);  in snd_timer_user_start()
1933 	tu->timeri->lost = 0;  in snd_timer_user_start()
1935 	err = snd_timer_start(tu->timeri, tu->ticks);  in snd_timer_user_start()
1947 	if (!tu->timeri)  in snd_timer_user_stop()
1949 	err = snd_timer_stop(tu->timeri);  in snd_timer_user_stop()
1961 	if (!tu->timeri)  in snd_timer_user_continue()
1964 	if (!(tu->timeri->flags & SNDRV_TIMER_IFLG_PAUSED))  in snd_timer_user_continue()
1966 	tu->timeri->lost = 0;  in snd_timer_user_continue()
1967 	err = snd_timer_continue(tu->timeri);  in snd_timer_user_continue()
1979 	if (!tu->timeri)  in snd_timer_user_pause()
1981 	err = snd_timer_pause(tu->timeri);  in snd_timer_user_pause()
1993 	if (tu->timeri)	/* too late */  in snd_timer_user_tread()