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authorTakashi Iwai <tiwai@suse.de>2008-12-08 12:16:58 +0100
committerTakashi Iwai <tiwai@suse.de>2008-12-08 12:16:58 +0100
commit647808a6b932d85c3e85df6dcf0e34c1e53cc953 (patch)
treee6b7bf19ad692244f25601fa57eecb01f55f44b9 /sound/core/hrtimer.c
parente78a37bc7776955a142317b622818962c3ee75dd (diff)
ALSA: timer - Add comments and use ns_to_ktime()
Add the license and misc comments at the beginning of the code. Also, use ns_to_ktime() for simplification. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/hrtimer.c')
-rw-r--r--sound/core/hrtimer.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c
index b712d7f211f..866c80c4499 100644
--- a/sound/core/hrtimer.c
+++ b/sound/core/hrtimer.c
@@ -1,4 +1,21 @@
/*
+ * ALSA timer back-end using hrtimer
+ * Copyright (C) 2008 Takashi Iwai
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
*/
#include <linux/init.h>
@@ -26,7 +43,7 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
{
struct snd_hrtimer *stime = container_of(hrt, struct snd_hrtimer, hrt);
struct snd_timer *t = stime->timer;
- hrtimer_forward_now(hrt, ktime_set(0, t->sticks * resolution));
+ hrtimer_forward_now(hrt, ns_to_ktime(t->sticks * resolution));
snd_timer_interrupt(stime->timer, t->sticks);
return HRTIMER_RESTART;
}
@@ -62,7 +79,7 @@ static int snd_hrtimer_start(struct snd_timer *t)
{
struct snd_hrtimer *stime = t->private_data;
- hrtimer_start(&stime->hrt, ktime_set(0, t->sticks * resolution),
+ hrtimer_start(&stime->hrt, ns_to_ktime(t->sticks * resolution),
HRTIMER_MODE_REL);
return 0;
}