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

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>

diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index 210096f124eed5765960b2b512954fb3dfa5c4ec..61c6054618c8ead951b15390ec91bb40b4a63ca2 100644 (file)
--- 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 0b76e76823d288d92f6e3355eda2a08cf15ddf9c..521ba56392a07fffaa87111da64a55f0cb3a4f07 100644 (file)
--- 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 = {