[alsa-devel] [PATCH] alsa-kernel: Add big-endian DSD sample formats and fix XMOS DSD sample format

[Takashi Iwai]

At Fri, 21 Nov 2014 16:04:46 +0200,
Jussi Laako wrote:
> 
> This patch fixes XMOS DSD sample format to DSD_U32_BE and also adds
> DSD_U16_BE and DSD_U32_BE sample formats.
> 
> Signed-off-by: Jussi Laako <jussi at sonarnerd.net>

Applied, thanks.


Takashi

> ---
>  include/sound/pcm.h         | 2 ++
>  include/uapi/sound/asound.h | 4 +++-
>  sound/core/pcm.c            | 2 ++
>  sound/core/pcm_misc.c       | 8 ++++++++
>  sound/usb/quirks.c          | 4 ++--
>  5 files changed, 17 insertions(+), 3 deletions(-)
> 
> diff --git a/include/sound/pcm.h b/include/sound/pcm.h
> index 40289ec..1e7f74a 100644
> --- a/include/sound/pcm.h
> +++ b/include/sound/pcm.h
> @@ -184,6 +184,8 @@ struct snd_pcm_ops {
>  #define SNDRV_PCM_FMTBIT_DSD_U8		_SNDRV_PCM_FMTBIT(DSD_U8)
>  #define SNDRV_PCM_FMTBIT_DSD_U16_LE	_SNDRV_PCM_FMTBIT(DSD_U16_LE)
>  #define SNDRV_PCM_FMTBIT_DSD_U32_LE	_SNDRV_PCM_FMTBIT(DSD_U32_LE)
> +#define SNDRV_PCM_FMTBIT_DSD_U16_BE	_SNDRV_PCM_FMTBIT(DSD_U16_BE)
> +#define SNDRV_PCM_FMTBIT_DSD_U32_BE	_SNDRV_PCM_FMTBIT(DSD_U32_BE)
>  
>  #ifdef SNDRV_LITTLE_ENDIAN
>  #define SNDRV_PCM_FMTBIT_S16		SNDRV_PCM_FMTBIT_S16_LE
> diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
> index 6ee5867..941d32f 100644
> --- a/include/uapi/sound/asound.h
> +++ b/include/uapi/sound/asound.h
> @@ -220,7 +220,9 @@ typedef int __bitwise snd_pcm_format_t;
>  #define	SNDRV_PCM_FORMAT_DSD_U8		((__force snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
>  #define	SNDRV_PCM_FORMAT_DSD_U16_LE	((__force snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
>  #define	SNDRV_PCM_FORMAT_DSD_U32_LE	((__force snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
> -#define	SNDRV_PCM_FORMAT_LAST		SNDRV_PCM_FORMAT_DSD_U32_LE
> +#define	SNDRV_PCM_FORMAT_DSD_U16_BE	((__force snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
> +#define	SNDRV_PCM_FORMAT_DSD_U32_BE	((__force snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
> +#define	SNDRV_PCM_FORMAT_LAST		SNDRV_PCM_FORMAT_DSD_U32_BE
>  
>  #ifdef SNDRV_LITTLE_ENDIAN
>  #define	SNDRV_PCM_FORMAT_S16		SNDRV_PCM_FORMAT_S16_LE
> diff --git a/sound/core/pcm.c b/sound/core/pcm.c
> index 8f624b7..cfc56c8 100644
> --- a/sound/core/pcm.c
> +++ b/sound/core/pcm.c
> @@ -216,6 +216,8 @@ static char *snd_pcm_format_names[] = {
>  	FORMAT(DSD_U8),
>  	FORMAT(DSD_U16_LE),
>  	FORMAT(DSD_U32_LE),
> +	FORMAT(DSD_U16_BE),
> +	FORMAT(DSD_U32_BE),
>  };
>  
>  /**
> diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c
> index ae7a0fe..ebe8444 100644
> --- a/sound/core/pcm_misc.c
> +++ b/sound/core/pcm_misc.c
> @@ -152,6 +152,14 @@ static struct pcm_format_data pcm_formats[(INT)SNDRV_PCM_FORMAT_LAST+1] = {
>  		.width = 32, .phys = 32, .le = 1, .signd = 0,
>  		.silence = { 0x69, 0x69, 0x69, 0x69 },
>  	},
> +	[SNDRV_PCM_FORMAT_DSD_U16_BE] = {
> +		.width = 16, .phys = 16, .le = 0, .signd = 0,
> +		.silence = { 0x69, 0x69 },
> +	},
> +	[SNDRV_PCM_FORMAT_DSD_U32_BE] = {
> +		.width = 32, .phys = 32, .le = 0, .signd = 0,
> +		.silence = { 0x69, 0x69, 0x69, 0x69 },
> +	},
>  	/* FIXME: the following three formats are not defined properly yet */
>  	[SNDRV_PCM_FORMAT_MPEG] = {
>  		.le = -1, .signd = -1,
> diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
> index 2c1018e..bc9ebb6 100644
> --- a/sound/usb/quirks.c
> +++ b/sound/usb/quirks.c
> @@ -1202,12 +1202,12 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
>  	/* iFi Audio micro/nano iDSD */
>  	case USB_ID(0x20b1, 0x3008):
>  		if (fp->altsetting == 2)
> -			return SNDRV_PCM_FMTBIT_DSD_U32_LE;
> +			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
>  		break;
>  	/* DIYINHK DSD DXD 384kHz USB to I2S/DSD */
>  	case USB_ID(0x20b1, 0x2009):
>  		if (fp->altsetting == 3)
> -			return SNDRV_PCM_FMTBIT_DSD_U32_LE;
> +			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
>  		break;
>  	default:
>  		break;
> -- 
> 1.9.1
>