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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2014-08-01 03:10:55 -0700
committerMark Brown <broonie@linaro.org>2014-08-01 18:46:25 +0100
commitcd2b65741e72da64508957cd1cde85116102d8dd (patch)
treef232def76ae952891de95af4c94d2a81eed5ebb4 /sound
parent486b09c750e58777976ad74a37de7b4252630332 (diff)
ASoC: rsnd: enable Mute control on DVC
DVC can control Mute. This patch supports it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/sh/rcar/dvc.c34
1 files changed, 29 insertions, 5 deletions
diff --git a/sound/soc/sh/rcar/dvc.c b/sound/soc/sh/rcar/dvc.c
index 12a0a2068d34..3f443930c2b1 100644
--- a/sound/soc/sh/rcar/dvc.c
+++ b/sound/soc/sh/rcar/dvc.c
@@ -21,6 +21,7 @@ struct rsnd_dvc {
struct rsnd_mod mod;
struct clk *clk;
u8 volume[RSND_DVC_VOLUME_NUM];
+ u8 mute[RSND_DVC_VOLUME_NUM];
};
#define rsnd_mod_to_dvc(_mod) \
@@ -37,13 +38,18 @@ static void rsnd_dvc_volume_update(struct rsnd_mod *mod)
struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
u32 max = (0x00800000 - 1);
u32 vol[RSND_DVC_VOLUME_NUM];
+ u32 mute = 0;
int i;
- for (i = 0; i < RSND_DVC_VOLUME_NUM; i++)
+ for (i = 0; i < RSND_DVC_VOLUME_NUM; i++) {
vol[i] = max / RSND_DVC_VOLUME_MAX * dvc->volume[i];
+ mute |= (!!dvc->mute[i]) << i;
+ }
rsnd_mod_write(mod, DVC_VOL0R, vol[0]);
rsnd_mod_write(mod, DVC_VOL1R, vol[1]);
+
+ rsnd_mod_write(mod, DVC_ZCMCR, mute);
}
static int rsnd_dvc_probe_gen2(struct rsnd_mod *mod,
@@ -96,8 +102,8 @@ static int rsnd_dvc_init(struct rsnd_mod *dvc_mod,
rsnd_mod_write(dvc_mod, DVC_ADINR, rsnd_get_adinr(dvc_mod));
- /* enable Volume */
- rsnd_mod_write(dvc_mod, DVC_DVUCR, 0x100);
+ /* enable Volume / Mute */
+ rsnd_mod_write(dvc_mod, DVC_DVUCR, 0x101);
/* ch0/ch1 Volume */
rsnd_dvc_volume_update(dvc_mod);
@@ -140,10 +146,20 @@ static int rsnd_dvc_stop(struct rsnd_mod *mod,
static int rsnd_dvc_volume_info(struct snd_kcontrol *kctrl,
struct snd_ctl_elem_info *uinfo)
{
- uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ struct rsnd_mod *mod = snd_kcontrol_chip(kctrl);
+ struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
+ u8 *val = (u8 *)kctrl->private_value;
+
uinfo->count = RSND_DVC_VOLUME_NUM;
uinfo->value.integer.min = 0;
- uinfo->value.integer.max = RSND_DVC_VOLUME_MAX;
+
+ if (val == dvc->volume) {
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->value.integer.max = RSND_DVC_VOLUME_MAX;
+ } else {
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->value.integer.max = 1;
+ }
return 0;
}
@@ -223,6 +239,14 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
if (ret < 0)
return ret;
+ /* Mute */
+ ret = __rsnd_dvc_pcm_new(mod, rdai, rtd,
+ rsnd_dai_is_play(rdai, io) ?
+ "DVC Out Mute Switch" : "DVC In Mute Switch",
+ dvc->mute);
+ if (ret < 0)
+ return ret;
+
return 0;
}