From: Michael Trimarchi <michael@amarulasolutions.com>
To: Mark Brown <broonie@kernel.org>,
Peter Ujfalusi <peter.ujfalusi@ti.com>,
Liam Girdwood <lgirdwood@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: [RFC PATCH] ASoC: omap-mcbsp: Add support for highter rate up to 384000
Date: Wed, 7 Aug 2013 20:28:41 +0200 [thread overview]
Message-ID: <20130807182841.GA7823@panicking> (raw)
Add support for highter rate up to 384000Khz. There are codecs in the
market that can play up to this frequency.
Test was done just with:
#define OMAP_MCBSP_RATES (SNDRV_PCM_RATE_8000_192000)
playing wav file 32bit/192000Khz stereo. Some glitch has observed
but this should depend on the selected min buffer bytes that was
left untouched in aplay and in the omap-pcm driver.
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
---
sound/soc/omap/omap-mcbsp.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 7483efb..1e95f6a 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -39,7 +39,9 @@
#include "mcbsp.h"
#include "omap-mcbsp.h"
-#define OMAP_MCBSP_RATES (SNDRV_PCM_RATE_8000_96000)
+#define OMAP_MCBSP_RATES (SNDRV_PCM_RATE_8000_192000 | \
+ SNDRV_PCM_RATE_CONTINUOUS | \
+ SNDRV_PCM_RATE_KNOT)
#define OMAP_MCBSP_SOC_SINGLE_S16_EXT(xname, xmin, xmax, \
xhandler_get, xhandler_put) \
@@ -574,11 +576,15 @@ static struct snd_soc_dai_driver omap_mcbsp_dai = {
.channels_max = 16,
.rates = OMAP_MCBSP_RATES,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
+ .rate_min = 8000,
+ .rate_max = 384000,
},
.capture = {
.channels_min = 1,
.channels_max = 16,
.rates = OMAP_MCBSP_RATES,
+ .rate_min = 8000,
+ .rate_max = 384000,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
},
.ops = &mcbsp_dai_ops,
--
1.7.9.5
next reply other threads:[~2013-08-07 18:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-07 18:28 Michael Trimarchi [this message]
2013-08-08 10:51 ` [RFC PATCH] ASoC: omap-mcbsp: Add support for highter rate up to 384000 Peter Ujfalusi
2013-08-08 11:04 ` Michael Trimarchi
2013-08-09 5:18 ` Peter Ujfalusi
2013-08-09 7:43 ` Michael Trimarchi
2013-08-10 7:53 ` Michael Trimarchi
2013-08-12 15:36 ` Peter Ujfalusi
2013-08-12 15:57 ` Michael Trimarchi
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