Unverified Commit 4cc4531c authored by Vidyakumar Athota's avatar Vidyakumar Athota Committed by Mark Brown
Browse files

ALSA: pcm: add support for 352.8KHz and 384KHz sample rate 



Most of the modern codecs supports 352.8KHz and 384KHz sample rates.
Currenlty HW params fails to set 352.8Kz and 384KHz sample rate
as these are not in known rates list.
Add these new rates to known list to allow them.

This patch also adds defines in pcm.h so that drivers can use it.

Signed-off-by: default avatarVidyakumar Athota <vathota@codeaurora.org>
Signed-off-by: default avatarBanajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20190822095653.7200-2-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2c650fd5

include/sound/pcm.h

+5 −0
Original line number Diff line number Diff line
@@ -117,6 +117,8 @@ struct snd_pcm_ops { 
#define SNDRV_PCM_RATE_96000		(1<<10)		/* 96000Hz */

#define SNDRV_PCM_RATE_176400		(1<<11)		/* 176400Hz */

#define SNDRV_PCM_RATE_192000		(1<<12)		/* 192000Hz */

#define SNDRV_PCM_RATE_352800		(1<<13)		/* 352800Hz */

#define SNDRV_PCM_RATE_384000		(1<<14)		/* 384000Hz */



#define SNDRV_PCM_RATE_CONTINUOUS	(1<<30)		/* continuous range */

#define SNDRV_PCM_RATE_KNOT		(1<<31)		/* supports more non-continuos rates */
@@ -129,6 +131,9 @@ struct snd_pcm_ops { 
					 SNDRV_PCM_RATE_88200|SNDRV_PCM_RATE_96000)

#define SNDRV_PCM_RATE_8000_192000	(SNDRV_PCM_RATE_8000_96000|SNDRV_PCM_RATE_176400|\

					 SNDRV_PCM_RATE_192000)

#define SNDRV_PCM_RATE_8000_384000	(SNDRV_PCM_RATE_8000_192000|\

					 SNDRV_PCM_RATE_352800|\

					 SNDRV_PCM_RATE_384000)

#define _SNDRV_PCM_FMTBIT(fmt)		(1ULL << (__force int)SNDRV_PCM_FORMAT_##fmt)

#define SNDRV_PCM_FMTBIT_S8		_SNDRV_PCM_FMTBIT(S8)

#define SNDRV_PCM_FMTBIT_U8		_SNDRV_PCM_FMTBIT(U8)

sound/core/pcm_native.c

+1 −1
Original line number Diff line number Diff line
@@ -2168,7 +2168,7 @@ static int snd_pcm_hw_rule_sample_bits(struct snd_pcm_hw_params *params, 


static const unsigned int rates[] = {

	5512, 8000, 11025, 16000, 22050, 32000, 44100,

	48000, 64000, 88200, 96000, 176400, 192000

	48000, 64000, 88200, 96000, 176400, 192000, 352800, 384000

};



const struct snd_pcm_hw_constraint_list snd_pcm_known_rates = {

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