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ASoC: rsnd: enable enumerated DVC valume settings

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DVC controls some digital volume features.
Volume Ramp is listed as "XX dB / YY steps",
and this enumerated settings are easy for users.
This patch adds rsnd_dvc_cfg_e and care about
enumerated settings.
Compiler will report like below at this point,
but, it will be removed if Volume Ramp was supported.
  warning: '_rsnd_dvc_pcm_new_e' defined but not used

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2014-11-04 20:28:50 -08:00 committed by Mark Brown
parent ab2e479667
commit 018342976c
1 changed files with 44 additions and 11 deletions
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55
sound/soc/sh/rcar/dvc.c
View File

@ -19,6 +19,7 @@ struct rsnd_dvc_cfg {
unsigned int max;
unsigned int size;
u32 *val;
const char * const *texts;
};
struct rsnd_dvc_cfg_m {
@ -169,14 +170,23 @@ static int rsnd_dvc_volume_info(struct snd_kcontrol *kctrl,
{
struct rsnd_dvc_cfg *cfg = (struct rsnd_dvc_cfg *)kctrl->private_value;
uinfo->count = cfg->size;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = cfg->max;
if (cfg->max == 1)
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
else
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
if (cfg->texts) {
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = cfg->size;
uinfo->value.enumerated.items = cfg->max;
if (uinfo->value.enumerated.item >= cfg->max)
uinfo->value.enumerated.item = cfg->max - 1;
strlcpy(uinfo->value.enumerated.name,
cfg->texts[uinfo->value.enumerated.item],
sizeof(uinfo->value.enumerated.name));
} else {
uinfo->count = cfg->size;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = cfg->max;
uinfo->type = (cfg->max == 1) ?
SNDRV_CTL_ELEM_TYPE_BOOLEAN :
SNDRV_CTL_ELEM_TYPE_INTEGER;
}
return 0;
}
@ -188,7 +198,10 @@ static int rsnd_dvc_volume_get(struct snd_kcontrol *kctrl,
int i;
for (i = 0; i < cfg->size; i++)
ucontrol->value.integer.value[i] = cfg->val[i];
if (cfg->texts)
ucontrol->value.enumerated.item[i] = cfg->val[i];
else
ucontrol->value.integer.value[i] = cfg->val[i];
return 0;
}
@ -201,8 +214,13 @@ static int rsnd_dvc_volume_put(struct snd_kcontrol *kctrl,
int i, change = 0;
for (i = 0; i < cfg->size; i++) {
change |= (ucontrol->value.integer.value[i] != cfg->val[i]);
cfg->val[i] = ucontrol->value.integer.value[i];
if (cfg->texts) {
change |= (ucontrol->value.enumerated.item[i] != cfg->val[i]);
cfg->val[i] = ucontrol->value.enumerated.item[i];
} else {
change |= (ucontrol->value.integer.value[i] != cfg->val[i]);
cfg->val[i] = ucontrol->value.integer.value[i];
}
}
if (change)
@ -266,6 +284,21 @@ static int _rsnd_dvc_pcm_new_s(struct rsnd_mod *mod,
return __rsnd_dvc_pcm_new(mod, rdai, rtd, name, &private->cfg);
}
static int _rsnd_dvc_pcm_new_e(struct rsnd_mod *mod,
struct rsnd_dai *rdai,
struct snd_soc_pcm_runtime *rtd,
const unsigned char *name,
struct rsnd_dvc_cfg_s *private,
const char * const *texts,
u32 max)
{
private->cfg.max = max;
private->cfg.size = 1;
private->cfg.val = &private->val;
private->cfg.texts = texts;
return __rsnd_dvc_pcm_new(mod, rdai, rtd, name, &private->cfg);
}
static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
struct rsnd_dai *rdai,
struct snd_soc_pcm_runtime *rtd)