[alsa-devel] [PATCH 04/11] ASoC: Add macros for defining virtual enums

[Takashi Iwai]

At Sun, 23 Feb 2014 16:10:14 +0100,
Lars-Peter Clausen wrote:
> 
> With the upcoming consolidation of normal MUXs and virtual MUXs we need to be
> able to distinguish between enums with and without a backing register at the
> enum level. Use the same approach as used for virtual mixer controls by setting
> the reg field of the enum to SND_SOC_NOPM for enums without a backing register.
> This patch adds a set of helper macros that can be used to define such enums.
> 
> Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
> ---
>  include/sound/soc.h | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/include/sound/soc.h b/include/sound/soc.h
> index e005196..a25de13 100644
> --- a/include/sound/soc.h
> +++ b/include/sound/soc.h
> @@ -189,6 +189,8 @@
>  	.mask = xmask, .items = xitems, .texts = xtexts, .values = xvalues}
>  #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xnitmes, xtexts, xvalues) \
>  	SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xnitmes, xtexts, xvalues)
> +#define SOC_ENUM_SINGLE_VIRT(xmax, xtexts) \
> +	SOC_ENUM_SINGLE(SND_SOC_NOPM, 0, xmax, xtexts)

Could you replace "max" with "items"?


Takashi