diff --git a/include/sound/soc.h b/include/sound/soc.h index fb955e69a78e..d696c2f6bcbb 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -224,6 +224,14 @@ .get = xhandler_get, .put = xhandler_put, \ .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \ xmax, xinvert) } +#define SOC_SINGLE_MULTI_EXT(xname, xreg, xshift, xmax, xinvert, xcount,\ + xhandler_get, xhandler_put) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ + .info = snd_soc_info_multi_ext, \ + .get = xhandler_get, .put = xhandler_put, \ + .private_value = (unsigned long)&(struct soc_multi_mixer_control) \ + {.reg = xreg, .shift = xshift, .rshift = xshift, .max = xmax, \ + .count = xcount, .platform_max = xmax, .invert = xinvert} } #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\ xhandler_get, xhandler_put, tlv_array) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ @@ -636,6 +644,8 @@ int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); +int snd_soc_info_multi_ext(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); /** * struct snd_soc_jack_pin - Describes a pin to update based on jack detection @@ -1235,6 +1245,11 @@ struct soc_mreg_control { unsigned int regbase, regcount, nbits, invert; }; +struct soc_multi_mixer_control { + int min, max, platform_max, count; + unsigned int reg, rreg, shift, rshift, invert; +}; + /* enumerated kcontrol */ struct soc_enum { int reg; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index a1305f827a98..24cb33a9f5c8 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3587,6 +3587,39 @@ static int snd_soc_get_dai_name(struct of_phandle_args *args, return ret; } +/** + * snd_soc_info_multi_ext - external single mixer info callback + * @kcontrol: mixer control + * @uinfo: control element information + * + * Callback to provide information about a single external mixer control. + * that accepts multiple input. + * + * Returns 0 for success. + */ +int snd_soc_info_multi_ext(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct soc_multi_mixer_control *mc = + (struct soc_multi_mixer_control *)kcontrol->private_value; + int platform_max; + + if (!mc->platform_max) + mc->platform_max = mc->max; + platform_max = mc->platform_max; + + if (platform_max == 1 && !strnstr(kcontrol->id.name, " Volume", 30)) + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + else + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + + uinfo->count = mc->count; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = platform_max; + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_info_multi_ext); + int snd_soc_of_get_dai_name(struct device_node *of_node, const char **dai_name) {