diff mbox series

[2/3] ALSA:pcm: add support for 705.6kHz and 768kHz sample rates

Message ID 20240416121726.628679-3-pavel.hofman@ivitera.com (mailing list archive)
State New
Headers show
Series adding 705.6/768kHz rates; DSD and 768kHz in aloop | expand

Commit Message

Pavel Hofman April 16, 2024, 12:17 p.m. UTC 
Many modern codecs support 705.6kHz and 768kHz sample rates. Current HW
params fail to set 705.6kHz and 768kHz sample rates as these are not in the
known-rates list.

Add these new rates to the known-rates list to allow them.

Also add defines in pcm.h so that drivers can use it.

Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
---
 include/sound/pcm.h     | 5 +++++
 sound/core/pcm_native.c | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 210096f124ee..61c6054618c8 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -120,6 +120,8 @@  struct snd_pcm_ops {
 #define SNDRV_PCM_RATE_192000		(1U<<12)	/* 192000Hz */
 #define SNDRV_PCM_RATE_352800		(1U<<13)	/* 352800Hz */
 #define SNDRV_PCM_RATE_384000		(1U<<14)	/* 384000Hz */
+#define SNDRV_PCM_RATE_705600		(1U<<15)	/* 705600Hz */
+#define SNDRV_PCM_RATE_768000		(1U<<16)	/* 768000Hz */
 
 #define SNDRV_PCM_RATE_CONTINUOUS	(1U<<30)	/* continuous range */
 #define SNDRV_PCM_RATE_KNOT		(1U<<31)	/* supports more non-continuos rates */
@@ -135,6 +137,9 @@  struct snd_pcm_ops {
 #define SNDRV_PCM_RATE_8000_384000	(SNDRV_PCM_RATE_8000_192000|\
 					 SNDRV_PCM_RATE_352800|\
 					 SNDRV_PCM_RATE_384000)
+#define SNDRV_PCM_RATE_8000_768000	(SNDRV_PCM_RATE_8000_384000|\
+					 SNDRV_PCM_RATE_705600|\
+					 SNDRV_PCM_RATE_768000)
 #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
index 0b76e76823d2..521ba56392a0 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2416,7 +2416,7 @@  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, 352800, 384000
+	48000, 64000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
 };
 
 const struct snd_pcm_hw_constraint_list snd_pcm_known_rates = {