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ALSA: pcm: add support for 705.6kHz and 768kHz sample rates

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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>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Message-ID: <20240416121726.628679-3-pavel.hofman@ivitera.com>
This commit is contained in:
Pavel Hofman 2024-04-16 14:17:25 +02:00 committed by Takashi Iwai
parent 93d7d38fa6
commit ad88ea67b1
2 changed files with 6 additions and 1 deletions
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5
include/sound/pcm.h
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@ -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)

2
sound/core/pcm_native.c
View File

@ -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 = {