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ASoC: core: Introduce macro SOC_SINGLE_MULTI_EXT

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For some of the mixer controls client would like to register
count as a parameter. Macro adds support to specify the count.

Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
This commit is contained in:
Sudheer Papothi 2016-01-29 00:22:14 +05:30 • committed by David Keitel
parent ac913a4be3
commit 7ed3e44771
2 changed files with 48 additions and 0 deletions
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15
include/sound/soc.h
View file

@ -224,6 +224,14 @@
.get = xhandler_get, .put = xhandler_put, \ .get = xhandler_get, .put = xhandler_put, \
.private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \ .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
xmax, xinvert) } 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,\ #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
xhandler_get, xhandler_put, tlv_array) \ xhandler_get, xhandler_put, tlv_array) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ { .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); struct snd_ctl_elem_value *ucontrol);
int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol); 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 * 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; 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 */ /* enumerated kcontrol */
struct soc_enum { struct soc_enum {
int reg; int reg;

33
sound/soc/soc-core.c
View file

@ -3587,6 +3587,39 @@ static int snd_soc_get_dai_name(struct of_phandle_args *args,
return ret; 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, int snd_soc_of_get_dai_name(struct device_node *of_node,
const char **dai_name) const char **dai_name)
{ {