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: Vidyakumar Athota <[email protected]> Signed-off-by: Banajit Goswami <[email protected]> Signed-off-by: Srinivas Kandagatla <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>
btm · Aug 28, 2019 · 4cc4531 · 4cc4531
1 parent 2c650fd
commit 4cc4531
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
@@ -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)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
@@ -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 = {