957 			struct snd_timer_user *tu = ti->callback_data;  in snd_timer_dev_disconnect()  local
959 			tu->disconnected = true;  in snd_timer_dev_disconnect()
960 			wake_up(&tu->qchange_sleep);  in snd_timer_dev_disconnect()
1205 	struct snd_timer_user *tu = timeri->callback_data;  in snd_timer_user_interrupt()  local
1209 	spin_lock(&tu->qlock);  in snd_timer_user_interrupt()
1210 	if (tu->qused > 0) {  in snd_timer_user_interrupt()
1211 		prev = tu->qtail == 0 ? tu->queue_size - 1 : tu->qtail - 1;  in snd_timer_user_interrupt()
1212 		r = &tu->queue[prev];  in snd_timer_user_interrupt()
1218 	if (tu->qused >= tu->queue_size) {  in snd_timer_user_interrupt()
1219 		tu->overrun++;  in snd_timer_user_interrupt()
1221 		r = &tu->queue[tu->qtail++];  in snd_timer_user_interrupt()
1222 		tu->qtail %= tu->queue_size;  in snd_timer_user_interrupt()
1225 		tu->qused++;  in snd_timer_user_interrupt()
1228 	spin_unlock(&tu->qlock);  in snd_timer_user_interrupt()
1229 	kill_fasync(&tu->fasync, SIGIO, POLL_IN);  in snd_timer_user_interrupt()
1230 	wake_up(&tu->qchange_sleep);  in snd_timer_user_interrupt()
1233 static void snd_timer_user_append_to_tqueue(struct snd_timer_user *tu,  in snd_timer_user_append_to_tqueue()  argument
1236 	if (tu->qused >= tu->queue_size) {  in snd_timer_user_append_to_tqueue()
1237 		tu->overrun++;  in snd_timer_user_append_to_tqueue()
1239 		memcpy(&tu->tqueue[tu->qtail++], tread, sizeof(*tread));  in snd_timer_user_append_to_tqueue()
1240 		tu->qtail %= tu->queue_size;  in snd_timer_user_append_to_tqueue()
1241 		tu->qused++;  in snd_timer_user_append_to_tqueue()
1250 	struct snd_timer_user *tu = timeri->callback_data;  in snd_timer_user_ccallback()  local
1256 		tu->tstamp = *tstamp;  in snd_timer_user_ccallback()
1257 	if ((tu->filter & (1 << event)) == 0 || !tu->tread)  in snd_timer_user_ccallback()
1263 	spin_lock_irqsave(&tu->qlock, flags);  in snd_timer_user_ccallback()
1264 	snd_timer_user_append_to_tqueue(tu, &r1);  in snd_timer_user_ccallback()
1265 	spin_unlock_irqrestore(&tu->qlock, flags);  in snd_timer_user_ccallback()
1266 	kill_fasync(&tu->fasync, SIGIO, POLL_IN);  in snd_timer_user_ccallback()
1267 	wake_up(&tu->qchange_sleep);  in snd_timer_user_ccallback()
1274 	struct snd_timer_user *tu = timeri->callback_data;  in snd_timer_user_tinterrupt()  local
1280 	spin_lock(&tu->qlock);  in snd_timer_user_tinterrupt()
1281 	if ((tu->filter & ((1 << SNDRV_TIMER_EVENT_RESOLUTION) |  in snd_timer_user_tinterrupt()
1283 		spin_unlock(&tu->qlock);  in snd_timer_user_tinterrupt()
1286 	if (tu->last_resolution != resolution || ticks > 0) {  in snd_timer_user_tinterrupt()
1292 	if ((tu->filter & (1 << SNDRV_TIMER_EVENT_RESOLUTION)) &&  in snd_timer_user_tinterrupt()
1293 	    tu->last_resolution != resolution) {  in snd_timer_user_tinterrupt()
1298 		snd_timer_user_append_to_tqueue(tu, &r1);  in snd_timer_user_tinterrupt()
1299 		tu->last_resolution = resolution;  in snd_timer_user_tinterrupt()
1302 	if ((tu->filter & (1 << SNDRV_TIMER_EVENT_TICK)) == 0)  in snd_timer_user_tinterrupt()
1306 	if (tu->qused > 0) {  in snd_timer_user_tinterrupt()
1307 		prev = tu->qtail == 0 ? tu->queue_size - 1 : tu->qtail - 1;  in snd_timer_user_tinterrupt()
1308 		r = &tu->tqueue[prev];  in snd_timer_user_tinterrupt()
1319 	snd_timer_user_append_to_tqueue(tu, &r1);  in snd_timer_user_tinterrupt()
1322 	spin_unlock(&tu->qlock);  in snd_timer_user_tinterrupt()
1325 	kill_fasync(&tu->fasync, SIGIO, POLL_IN);  in snd_timer_user_tinterrupt()
1326 	wake_up(&tu->qchange_sleep);  in snd_timer_user_tinterrupt()
1331 	struct snd_timer_user *tu;  in snd_timer_user_open()  local
1338 	tu = kzalloc(sizeof(*tu), GFP_KERNEL);  in snd_timer_user_open()
1339 	if (tu == NULL)  in snd_timer_user_open()
1341 	spin_lock_init(&tu->qlock);  in snd_timer_user_open()
1342 	init_waitqueue_head(&tu->qchange_sleep);  in snd_timer_user_open()
1343 	mutex_init(&tu->ioctl_lock);  in snd_timer_user_open()
1344 	tu->ticks = 1;  in snd_timer_user_open()
1345 	tu->queue_size = 128;  in snd_timer_user_open()
1346 	tu->queue = kmalloc(tu->queue_size * sizeof(struct snd_timer_read),  in snd_timer_user_open()
1348 	if (tu->queue == NULL) {  in snd_timer_user_open()
1349 		kfree(tu);  in snd_timer_user_open()
1352 	file->private_data = tu;  in snd_timer_user_open()
1358 	struct snd_timer_user *tu;  in snd_timer_user_release()  local
1361 		tu = file->private_data;  in snd_timer_user_release()
1363 		mutex_lock(&tu->ioctl_lock);  in snd_timer_user_release()
1364 		if (tu->timeri)  in snd_timer_user_release()
1365 			snd_timer_close(tu->timeri);  in snd_timer_user_release()
1366 		mutex_unlock(&tu->ioctl_lock);  in snd_timer_user_release()
1367 		kfree(tu->queue);  in snd_timer_user_release()
1368 		kfree(tu->tqueue);  in snd_timer_user_release()
1369 		kfree(tu);  in snd_timer_user_release()
1598 	struct snd_timer_user *tu;  in snd_timer_user_tselect()  local
1603 	tu = file->private_data;  in snd_timer_user_tselect()
1604 	if (tu->timeri) {  in snd_timer_user_tselect()
1605 		snd_timer_close(tu->timeri);  in snd_timer_user_tselect()
1606 		tu->timeri = NULL;  in snd_timer_user_tselect()
1615 	err = snd_timer_open(&tu->timeri, str, &tselect.id, current->pid);  in snd_timer_user_tselect()
1619 	tu->qhead = tu->qtail = tu->qused = 0;  in snd_timer_user_tselect()
1620 	kfree(tu->queue);  in snd_timer_user_tselect()
1621 	tu->queue = NULL;  in snd_timer_user_tselect()
1622 	kfree(tu->tqueue);  in snd_timer_user_tselect()
1623 	tu->tqueue = NULL;  in snd_timer_user_tselect()
1624 	if (tu->tread) {  in snd_timer_user_tselect()
1625 		tu->tqueue = kmalloc(tu->queue_size * sizeof(struct snd_timer_tread),  in snd_timer_user_tselect()
1627 		if (tu->tqueue == NULL)  in snd_timer_user_tselect()
1630 		tu->queue = kmalloc(tu->queue_size * sizeof(struct snd_timer_read),  in snd_timer_user_tselect()
1632 		if (tu->queue == NULL)  in snd_timer_user_tselect()
1637 		snd_timer_close(tu->timeri);  in snd_timer_user_tselect()
1638       		tu->timeri = NULL;  in snd_timer_user_tselect()
1640 		tu->timeri->flags |= SNDRV_TIMER_IFLG_FAST;  in snd_timer_user_tselect()
1641 		tu->timeri->callback = tu->tread  in snd_timer_user_tselect()
1643 		tu->timeri->ccallback = snd_timer_user_ccallback;  in snd_timer_user_tselect()
1644 		tu->timeri->callback_data = (void *)tu;  in snd_timer_user_tselect()
1654 	struct snd_timer_user *tu;  in snd_timer_user_info()  local
1659 	tu = file->private_data;  in snd_timer_user_info()
1660 	if (!tu->timeri)  in snd_timer_user_info()
1662 	t = tu->timeri->timer;  in snd_timer_user_info()
1684 	struct snd_timer_user *tu;  in snd_timer_user_params()  local
1691 	tu = file->private_data;  in snd_timer_user_params()
1692 	if (!tu->timeri)  in snd_timer_user_params()
1694 	t = tu->timeri->timer;  in snd_timer_user_params()
1708 		resolution = snd_timer_resolution(tu->timeri);  in snd_timer_user_params()
1737 	snd_timer_stop(tu->timeri);  in snd_timer_user_params()
1739 	tu->timeri->flags &= ~(SNDRV_TIMER_IFLG_AUTO|  in snd_timer_user_params()
1743 		tu->timeri->flags |= SNDRV_TIMER_IFLG_AUTO;  in snd_timer_user_params()
1745 		tu->timeri->flags |= SNDRV_TIMER_IFLG_EXCLUSIVE;  in snd_timer_user_params()
1747 		tu->timeri->flags |= SNDRV_TIMER_IFLG_EARLY_EVENT;  in snd_timer_user_params()
1750 	    (unsigned int)tu->queue_size != params.queue_size) {  in snd_timer_user_params()
1751 		if (tu->tread) {  in snd_timer_user_params()
1755 				kfree(tu->tqueue);  in snd_timer_user_params()
1756 				tu->queue_size = params.queue_size;  in snd_timer_user_params()
1757 				tu->tqueue = ttr;  in snd_timer_user_params()
1763 				kfree(tu->queue);  in snd_timer_user_params()
1764 				tu->queue_size = params.queue_size;  in snd_timer_user_params()
1765 				tu->queue = tr;  in snd_timer_user_params()
1769 	tu->qhead = tu->qtail = tu->qused = 0;  in snd_timer_user_params()
1770 	if (tu->timeri->flags & SNDRV_TIMER_IFLG_EARLY_EVENT) {  in snd_timer_user_params()
1771 		if (tu->tread) {  in snd_timer_user_params()
1778 			snd_timer_user_append_to_tqueue(tu, &tread);  in snd_timer_user_params()
1780 			struct snd_timer_read *r = &tu->queue[0];  in snd_timer_user_params()
1783 			tu->qused++;  in snd_timer_user_params()
1784 			tu->qtail++;  in snd_timer_user_params()
1787 	tu->filter = params.filter;  in snd_timer_user_params()
1788 	tu->ticks = params.ticks;  in snd_timer_user_params()
1799 	struct snd_timer_user *tu;  in snd_timer_user_status()  local
1802 	tu = file->private_data;  in snd_timer_user_status()
1803 	if (!tu->timeri)  in snd_timer_user_status()
1806 	status.tstamp = tu->tstamp;  in snd_timer_user_status()
1807 	status.resolution = snd_timer_resolution(tu->timeri);  in snd_timer_user_status()
1808 	status.lost = tu->timeri->lost;  in snd_timer_user_status()
1809 	status.overrun = tu->overrun;  in snd_timer_user_status()
1810 	spin_lock_irq(&tu->qlock);  in snd_timer_user_status()
1811 	status.queue = tu->qused;  in snd_timer_user_status()
1812 	spin_unlock_irq(&tu->qlock);  in snd_timer_user_status()
1821 	struct snd_timer_user *tu;  in snd_timer_user_start()  local
1823 	tu = file->private_data;  in snd_timer_user_start()
1824 	if (!tu->timeri)  in snd_timer_user_start()
1826 	snd_timer_stop(tu->timeri);  in snd_timer_user_start()
1827 	tu->timeri->lost = 0;  in snd_timer_user_start()
1828 	tu->last_resolution = 0;  in snd_timer_user_start()
1829 	return (err = snd_timer_start(tu->timeri, tu->ticks)) < 0 ? err : 0;  in snd_timer_user_start()
1835 	struct snd_timer_user *tu;  in snd_timer_user_stop()  local
1837 	tu = file->private_data;  in snd_timer_user_stop()
1838 	if (!tu->timeri)  in snd_timer_user_stop()
1840 	return (err = snd_timer_stop(tu->timeri)) < 0 ? err : 0;  in snd_timer_user_stop()
1846 	struct snd_timer_user *tu;  in snd_timer_user_continue()  local
1848 	tu = file->private_data;  in snd_timer_user_continue()
1849 	if (!tu->timeri)  in snd_timer_user_continue()
1852 	if (!(tu->timeri->flags & SNDRV_TIMER_IFLG_PAUSED))  in snd_timer_user_continue()
1854 	tu->timeri->lost = 0;  in snd_timer_user_continue()
1855 	return (err = snd_timer_continue(tu->timeri)) < 0 ? err : 0;  in snd_timer_user_continue()
1861 	struct snd_timer_user *tu;  in snd_timer_user_pause()  local
1863 	tu = file->private_data;  in snd_timer_user_pause()
1864 	if (!tu->timeri)  in snd_timer_user_pause()
1866 	return (err = snd_timer_pause(tu->timeri)) < 0 ? err : 0;  in snd_timer_user_pause()
1879 	struct snd_timer_user *tu;  in __snd_timer_user_ioctl()  local
1883 	tu = file->private_data;  in __snd_timer_user_ioctl()
1893 		if (tu->timeri)	/* too late */  in __snd_timer_user_ioctl()
1897 		tu->tread = xarg ? 1 : 0;  in __snd_timer_user_ioctl()
1933 	struct snd_timer_user *tu = file->private_data;  in snd_timer_user_ioctl()  local
1936 	mutex_lock(&tu->ioctl_lock);  in snd_timer_user_ioctl()
1938 	mutex_unlock(&tu->ioctl_lock);  in snd_timer_user_ioctl()
1944 	struct snd_timer_user *tu;  in snd_timer_user_fasync()  local
1946 	tu = file->private_data;  in snd_timer_user_fasync()
1947 	return fasync_helper(fd, file, on, &tu->fasync);  in snd_timer_user_fasync()
1953 	struct snd_timer_user *tu;  in snd_timer_user_read()  local
1958 	tu = file->private_data;  in snd_timer_user_read()
1959 	unit = tu->tread ? sizeof(struct snd_timer_tread) : sizeof(struct snd_timer_read);  in snd_timer_user_read()
1960 	mutex_lock(&tu->ioctl_lock);  in snd_timer_user_read()
1961 	spin_lock_irq(&tu->qlock);  in snd_timer_user_read()
1963 		while (!tu->qused) {  in snd_timer_user_read()
1973 			add_wait_queue(&tu->qchange_sleep, &wait);  in snd_timer_user_read()
1975 			spin_unlock_irq(&tu->qlock);  in snd_timer_user_read()
1976 			mutex_unlock(&tu->ioctl_lock);  in snd_timer_user_read()
1978 			mutex_lock(&tu->ioctl_lock);  in snd_timer_user_read()
1979 			spin_lock_irq(&tu->qlock);  in snd_timer_user_read()
1981 			remove_wait_queue(&tu->qchange_sleep, &wait);  in snd_timer_user_read()
1983 			if (tu->disconnected) {  in snd_timer_user_read()
1993 		qhead = tu->qhead++;  in snd_timer_user_read()
1994 		tu->qhead %= tu->queue_size;  in snd_timer_user_read()
1995 		tu->qused--;  in snd_timer_user_read()
1996 		spin_unlock_irq(&tu->qlock);  in snd_timer_user_read()
1998 		if (tu->tread) {  in snd_timer_user_read()
1999 			if (copy_to_user(buffer, &tu->tqueue[qhead],  in snd_timer_user_read()
2003 			if (copy_to_user(buffer, &tu->queue[qhead],  in snd_timer_user_read()
2008 		spin_lock_irq(&tu->qlock);  in snd_timer_user_read()
2015 	spin_unlock_irq(&tu->qlock);  in snd_timer_user_read()
2016 	mutex_unlock(&tu->ioctl_lock);  in snd_timer_user_read()
2023         struct snd_timer_user *tu;  in snd_timer_user_poll()  local
2025         tu = file->private_data;  in snd_timer_user_poll()
2027         poll_wait(file, &tu->qchange_sleep, wait);  in snd_timer_user_poll()
2030 	if (tu->qused)  in snd_timer_user_poll()
2032 	if (tu->disconnected)  in snd_timer_user_poll()