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ALSA: pcm: add more sample rate definitions

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This adds a sample rate definition for 12kHz, 24kHz and 128kHz.

Admittedly, just a few drivers are currently using these sample
rates but there is enough of a recurrence to justify adding a definition
for them and remove some custom rate constraint code while at it.

The new definitions are not added to the interval definitions, such as
SNDRV_PCM_RATE_8000_44100, because it would silently add new supported
rates to drivers that may or may not support them. For sure the drivers
have not been tested for these new rates so it is better to leave them out
of interval definitions.

That being said, the added rates are multiples of well know rates families,
it is very likely that a lot of devices out there actually supports them.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: David Rhodes <drhodes@opensource.cirrus.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20240905-alsa-12-24-128-v1-1-8371948d3921@baylibre.com
This commit is contained in:
Jerome Brunet 2024-09-05 16:12:52 +02:00 committed by Takashi Iwai
parent 2994586e2c
commit 090624b7dc
2 changed files with 20 additions and 17 deletions
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31
include/sound/pcm.h
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@ -109,20 +109,23 @@ struct snd_pcm_ops {
#define SNDRV_PCM_RATE_5512 (1U<<0) /* 5512Hz */
#define SNDRV_PCM_RATE_8000 (1U<<1) /* 8000Hz */
#define SNDRV_PCM_RATE_11025 (1U<<2) /* 11025Hz */
#define SNDRV_PCM_RATE_16000 (1U<<3) /* 16000Hz */
#define SNDRV_PCM_RATE_22050 (1U<<4) /* 22050Hz */
#define SNDRV_PCM_RATE_32000 (1U<<5) /* 32000Hz */
#define SNDRV_PCM_RATE_44100 (1U<<6) /* 44100Hz */
#define SNDRV_PCM_RATE_48000 (1U<<7) /* 48000Hz */
#define SNDRV_PCM_RATE_64000 (1U<<8) /* 64000Hz */
#define SNDRV_PCM_RATE_88200 (1U<<9) /* 88200Hz */
#define SNDRV_PCM_RATE_96000 (1U<<10) /* 96000Hz */
#define SNDRV_PCM_RATE_176400 (1U<<11) /* 176400Hz */
#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_12000 (1U<<3) /* 12000Hz */
#define SNDRV_PCM_RATE_16000 (1U<<4) /* 16000Hz */
#define SNDRV_PCM_RATE_22050 (1U<<5) /* 22050Hz */
#define SNDRV_PCM_RATE_24000 (1U<<6) /* 24000Hz */
#define SNDRV_PCM_RATE_32000 (1U<<7) /* 32000Hz */
#define SNDRV_PCM_RATE_44100 (1U<<8) /* 44100Hz */
#define SNDRV_PCM_RATE_48000 (1U<<9) /* 48000Hz */
#define SNDRV_PCM_RATE_64000 (1U<<10) /* 64000Hz */
#define SNDRV_PCM_RATE_88200 (1U<<11) /* 88200Hz */
#define SNDRV_PCM_RATE_96000 (1U<<12) /* 96000Hz */
#define SNDRV_PCM_RATE_128000 (1U<<13) /* 128000Hz */
#define SNDRV_PCM_RATE_176400 (1U<<14) /* 176400Hz */
#define SNDRV_PCM_RATE_192000 (1U<<15) /* 192000Hz */
#define SNDRV_PCM_RATE_352800 (1U<<16) /* 352800Hz */
#define SNDRV_PCM_RATE_384000 (1U<<17) /* 384000Hz */
#define SNDRV_PCM_RATE_705600 (1U<<18) /* 705600Hz */
#define SNDRV_PCM_RATE_768000 (1U<<19) /* 768000Hz */
#define SNDRV_PCM_RATE_CONTINUOUS (1U<<30) /* continuous range */
#define SNDRV_PCM_RATE_KNOT (1U<<31) /* supports more non-continuous rates */

6
sound/core/pcm_native.c
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@ -2418,13 +2418,13 @@ static int snd_pcm_hw_rule_sample_bits(struct snd_pcm_hw_params *params,
return snd_interval_refine(hw_param_interval(params, rule->var), &t);
}
#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12
#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_768000 != 1 << 19
#error "Change this table"
#endif
static const unsigned int rates[] = {
5512, 8000, 11025, 16000, 22050, 32000, 44100,
48000, 64000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
5512, 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000,
88200, 96000, 128000, 176400, 192000, 352800, 384000, 705600, 768000,
};
const struct snd_pcm_hw_constraint_list snd_pcm_known_rates = {