From: Andrew Gabbasov <andrew_gabbasov@mentor.com>
To: <alsa-devel@alsa-project.org>, <linux-kernel@vger.kernel.org>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Timo Wischer <twischer@de.adit-jv.com>,
Andrew Gabbasov <andrew_gabbasov@mentor.com>
Subject: [alsa-devel] [PATCH v5 1/7] ALSA: aloop: Describe units of variables
Date: Wed, 20 Nov 2019 11:49:49 -0600 [thread overview]
Message-ID: <20191120174955.6410-2-andrew_gabbasov@mentor.com> (raw)
In-Reply-To: <20191120174955.6410-1-andrew_gabbasov@mentor.com>
From: Timo Wischer <twischer@de.adit-jv.com>
Describe the unit of the variables used to calculate the hw pointer
depending on jiffies ticks.
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com>
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
---
sound/drivers/aloop.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/sound/drivers/aloop.c b/sound/drivers/aloop.c
index 54f8b17476a1..573b06cf7cf5 100644
--- a/sound/drivers/aloop.c
+++ b/sound/drivers/aloop.c
@@ -102,8 +102,10 @@ struct loopback_pcm {
/* flags */
unsigned int period_update_pending :1;
/* timer stuff */
- unsigned int irq_pos; /* fractional IRQ position */
- unsigned int period_size_frac;
+ unsigned int irq_pos; /* fractional IRQ position in jiffies
+ * ticks
+ */
+ unsigned int period_size_frac; /* period size in jiffies ticks */
unsigned int last_drift;
unsigned long last_jiffies;
struct timer_list timer;
--
2.21.0
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next prev parent reply other threads:[~2019-11-20 17:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-20 17:49 [alsa-devel] [PATCH v5 0/7] ALSA: aloop: Support sound timer as clock source instead of jiffies Andrew Gabbasov
2019-11-20 17:49 ` Andrew Gabbasov [this message]
2019-11-20 17:49 ` [alsa-devel] [PATCH v5 2/7] ALSA: aloop: Support return of error code for timer start and stop Andrew Gabbasov
2019-11-20 17:49 ` [alsa-devel] [PATCH v5 3/7] ALSA: aloop: Use callback functions for timer specific implementations Andrew Gabbasov
2019-11-20 17:49 ` [alsa-devel] [PATCH v5 4/7] ALSA: aloop: Rename all jiffies timer specific functions Andrew Gabbasov
2019-11-20 17:49 ` [alsa-devel] [PATCH v5 5/7] ALSA: aloop: Move CABLE_VALID_BOTH to the top of file Andrew Gabbasov
2019-11-20 17:49 ` [alsa-devel] [PATCH v5 6/7] ALSA: aloop: Support selection of snd_timer instead of jiffies Andrew Gabbasov
2019-11-20 17:49 ` [alsa-devel] [PATCH v5 7/7] ALSA: aloop: Support runtime change of snd_timer via info interface Andrew Gabbasov
[not found] ` <s5hblt6v0x4.wl-tiwai@suse.de>
2019-11-22 17:56 ` [alsa-devel] [PATCH v5 0/7] ALSA: aloop: Support sound timer as clock source instead of jiffies Andrew Gabbasov
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