diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2014-08-01 14:10:55 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-08-01 21:46:25 +0400 |
| commit | cd2b65741e72da64508957cd1cde85116102d8dd (patch) | |
| tree | f232def76ae952891de95af4c94d2a81eed5ebb4 /sound/soc | |
| parent | 486b09c750e58777976ad74a37de7b4252630332 (diff) | |
| download | linux-cd2b65741e72da64508957cd1cde85116102d8dd.tar.xz | |
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/soc')
| -rw-r--r-- | sound/soc/sh/rcar/dvc.c | 34 |
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; } |