korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-25 21:24:08 +08:00
Code Issues Packages Projects Releases Wiki Activity

ALSA: pcm: add support for 352.8KHz and 384KHz sample rate

Browse Source 
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 <vathota@codeaurora.org>
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20190822095653.7200-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vidyakumar Athota 2019-08-22 10:56:50 +01:00 committed by Mark Brown
parent 2c650fd5a5
commit 4cc4531c31
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/sound/pcm.h
View File

@ -117,6 +117,8 @@ struct snd_pcm_ops {
#define SNDRV_PCM_RATE_96000 (1<<10) /* 96000Hz */ #define SNDRV_PCM_RATE_96000 (1<<10) /* 96000Hz */
#define SNDRV_PCM_RATE_176400 (1<<11) /* 176400Hz */ #define SNDRV_PCM_RATE_176400 (1<<11) /* 176400Hz */
#define SNDRV_PCM_RATE_192000 (1<<12) /* 192000Hz */ #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_CONTINUOUS (1<<30) /* continuous range */
#define SNDRV_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */ #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) SNDRV_PCM_RATE_88200|SNDRV_PCM_RATE_96000)
#define SNDRV_PCM_RATE_8000_192000 (SNDRV_PCM_RATE_8000_96000|SNDRV_PCM_RATE_176400|\ #define SNDRV_PCM_RATE_8000_192000 (SNDRV_PCM_RATE_8000_96000|SNDRV_PCM_RATE_176400|\
SNDRV_PCM_RATE_192000) 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(fmt) (1ULL << (__force int)SNDRV_PCM_FORMAT_##fmt)
#define SNDRV_PCM_FMTBIT_S8 _SNDRV_PCM_FMTBIT(S8) #define SNDRV_PCM_FMTBIT_S8 _SNDRV_PCM_FMTBIT(S8)
#define SNDRV_PCM_FMTBIT_U8 _SNDRV_PCM_FMTBIT(U8) #define SNDRV_PCM_FMTBIT_U8 _SNDRV_PCM_FMTBIT(U8)

2
sound/core/pcm_native.c
View File

@ -2168,7 +2168,7 @@ static int snd_pcm_hw_rule_sample_bits(struct snd_pcm_hw_params *params,
static const unsigned int rates[] = { static const unsigned int rates[] = {
5512, 8000, 11025, 16000, 22050, 32000, 44100, 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 = { const struct snd_pcm_hw_constraint_list snd_pcm_known_rates = {