From: Omair Mohammed Abdullah <omair.m.abdullah@linux.intel.com>
To: alsa-devel@alsa-project.org
Cc: broonie@opensource.wolfsonmicro.com, lrg@ti.com,
Omair Mohammed Abdullah <omair.m.abdullah@linux.intel.com>
Subject: [PATCH] ASoC: Added PCM short and long frame sync formats
Date: Tue, 27 Mar 2012 09:02:15 +0530 [thread overview]
Message-ID: <1332819135-5416-1-git-send-email-omair.m.abdullah@linux.intel.com> (raw)
In-Reply-To: <20120326133305.GR3098@opensource.wolfsonmicro.com>
The PCM short frame sync sends a short (1 clock length) sync signal before the
MSB of data. The PCM long frame sync sends a 1 word length sync signal along
with the data.
Signed-off-by: Omair Mohammed Abdullah <omair.m.abdullah@linux.intel.com>
---
include/sound/soc-dai.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index c429f24..dc94b25 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -32,6 +32,8 @@ struct snd_soc_dapm_widget;
#define SND_SOC_DAIFMT_DSP_B 5 /* L data MSB during FRM LRC */
#define SND_SOC_DAIFMT_AC97 6 /* AC97 */
#define SND_SOC_DAIFMT_PDM 7 /* Pulse density modulation */
+#define SND_SOC_DAIFMT_SHORT_SYNC 8 /* FRM for 1 clock before MSB */
+#define SND_SOC_DAIFMT_LONG_SYNC 9 /* FRM for 1 word starting with MSB */
/* left and right justified also known as MSB and LSB respectively */
#define SND_SOC_DAIFMT_MSB SND_SOC_DAIFMT_LEFT_J
--
1.7.4.1
next prev parent reply other threads:[~2012-03-27 3:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-21 10:21 Question: PCM short and long sync formats Omair Mohammed Abdullah
2012-03-21 11:51 ` Mark Brown
2012-03-26 9:06 ` Omair Mohammed Abdullah
2012-03-26 10:26 ` Mark Brown
2012-03-26 12:07 ` Omair Mohammed Abdullah
2012-03-26 12:08 ` Mark Brown
2012-03-26 13:29 ` Omair Mohammed Abdullah
2012-03-26 13:33 ` Mark Brown
2012-03-27 3:32 ` Omair Mohammed Abdullah [this message]
2012-03-27 3:34 ` [PATCH] ASoC: Added PCM short and long frame " Omair Mohammed Abdullah
2012-03-27 7:33 ` Lars-Peter Clausen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1332819135-5416-1-git-send-email-omair.m.abdullah@linux.intel.com \
--to=omair.m.abdullah@linux.intel.com \
--cc=alsa-devel@alsa-project.org \
--cc=broonie@opensource.wolfsonmicro.com \
--cc=lrg@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).