diff options
Diffstat (limited to 'sound/soc/codecs/pcm512x.c')
| -rw-r--r-- | sound/soc/codecs/pcm512x.c | 121 |
1 files changed, 119 insertions, 2 deletions
diff --git a/sound/soc/codecs/pcm512x.c b/sound/soc/codecs/pcm512x.c index f0f2d4fd3769..6cb1653be804 100644 --- a/sound/soc/codecs/pcm512x.c +++ b/sound/soc/codecs/pcm512x.c @@ -53,6 +53,8 @@ struct pcm512x_priv { unsigned long overclock_pll; unsigned long overclock_dac; unsigned long overclock_dsp; + int mute; + struct mutex mutex; }; /* @@ -384,6 +386,61 @@ static const struct soc_enum pcm512x_veds = SOC_ENUM_SINGLE(PCM512x_DIGITAL_MUTE_2, PCM512x_VEDS_SHIFT, 4, pcm512x_ramp_step_text); +static int pcm512x_update_mute(struct pcm512x_priv *pcm512x) +{ + return regmap_update_bits( + pcm512x->regmap, PCM512x_MUTE, PCM512x_RQML | PCM512x_RQMR, + (!!(pcm512x->mute & 0x5) << PCM512x_RQML_SHIFT) + | (!!(pcm512x->mute & 0x3) << PCM512x_RQMR_SHIFT)); +} + +static int pcm512x_digital_playback_switch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); + + mutex_lock(&pcm512x->mutex); + ucontrol->value.integer.value[0] = !(pcm512x->mute & 0x4); + ucontrol->value.integer.value[1] = !(pcm512x->mute & 0x2); + mutex_unlock(&pcm512x->mutex); + + return 0; +} + +static int pcm512x_digital_playback_switch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); + int ret, changed = 0; + + mutex_lock(&pcm512x->mutex); + + if ((pcm512x->mute & 0x4) == (ucontrol->value.integer.value[0] << 2)) { + pcm512x->mute ^= 0x4; + changed = 1; + } + if ((pcm512x->mute & 0x2) == (ucontrol->value.integer.value[1] << 1)) { + pcm512x->mute ^= 0x2; + changed = 1; + } + + if (changed) { + ret = pcm512x_update_mute(pcm512x); + if (ret != 0) { + dev_err(component->dev, + "Failed to update digital mute: %d\n", ret); + mutex_unlock(&pcm512x->mutex); + return ret; + } + } + + mutex_unlock(&pcm512x->mutex); + + return changed; +} + static const struct snd_kcontrol_new pcm512x_controls[] = { SOC_DOUBLE_R_TLV("Digital Playback Volume", PCM512x_DIGITAL_VOLUME_2, PCM512x_DIGITAL_VOLUME_3, 0, 255, 1, digital_tlv), @@ -391,8 +448,15 @@ SOC_DOUBLE_TLV("Analogue Playback Volume", PCM512x_ANALOG_GAIN_CTRL, PCM512x_LAGN_SHIFT, PCM512x_RAGN_SHIFT, 1, 1, analog_tlv), SOC_DOUBLE_TLV("Analogue Playback Boost Volume", PCM512x_ANALOG_GAIN_BOOST, PCM512x_AGBL_SHIFT, PCM512x_AGBR_SHIFT, 1, 0, boost_tlv), -SOC_DOUBLE("Digital Playback Switch", PCM512x_MUTE, PCM512x_RQML_SHIFT, - PCM512x_RQMR_SHIFT, 1, 1), +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Digital Playback Switch", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = pcm512x_digital_playback_switch_get, + .put = pcm512x_digital_playback_switch_put +}, SOC_SINGLE("Deemphasis Switch", PCM512x_DSP, PCM512x_DEMP_SHIFT, 1, 1), SOC_ENUM("DSP Program", pcm512x_dsp_program), @@ -1319,10 +1383,61 @@ static int pcm512x_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return 0; } +static int pcm512x_digital_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_component *component = dai->component; + struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); + int ret; + unsigned int mute_det; + + mutex_lock(&pcm512x->mutex); + + if (mute) { + pcm512x->mute |= 0x1; + ret = regmap_update_bits(pcm512x->regmap, PCM512x_MUTE, + PCM512x_RQML | PCM512x_RQMR, + PCM512x_RQML | PCM512x_RQMR); + if (ret != 0) { + dev_err(component->dev, + "Failed to set digital mute: %d\n", ret); + mutex_unlock(&pcm512x->mutex); + return ret; + } + + regmap_read_poll_timeout(pcm512x->regmap, + PCM512x_ANALOG_MUTE_DET, + mute_det, (mute_det & 0x3) == 0, + 200, 10000); + + mutex_unlock(&pcm512x->mutex); + } else { + pcm512x->mute &= ~0x1; + ret = pcm512x_update_mute(pcm512x); + if (ret != 0) { + dev_err(component->dev, + "Failed to update digital mute: %d\n", ret); + mutex_unlock(&pcm512x->mutex); + return ret; + } + + regmap_read_poll_timeout(pcm512x->regmap, + PCM512x_ANALOG_MUTE_DET, + mute_det, + (mute_det & 0x3) + == ((~pcm512x->mute >> 1) & 0x3), + 200, 10000); + } + + mutex_unlock(&pcm512x->mutex); + + return 0; +} + static const struct snd_soc_dai_ops pcm512x_dai_ops = { .startup = pcm512x_dai_startup, .hw_params = pcm512x_hw_params, .set_fmt = pcm512x_set_fmt, + .digital_mute = pcm512x_digital_mute, }; static struct snd_soc_dai_driver pcm512x_dai = { @@ -1388,6 +1503,8 @@ int pcm512x_probe(struct device *dev, struct regmap *regmap) if (!pcm512x) return -ENOMEM; + mutex_init(&pcm512x->mutex); + dev_set_drvdata(dev, pcm512x); pcm512x->regmap = regmap; |