* [PATCH v2] ASoC: wm5102: Add controls to allow shaping of ultrasonic response
@ 2014-06-06 13:14 Charles Keepax
2014-06-09 20:20 ` Mark Brown
0 siblings, 1 reply; 2+ messages in thread
From: Charles Keepax @ 2014-06-06 13:14 UTC (permalink / raw)
To: broonie; +Cc: lee.jones, alsa-devel, patches, lgirdwood, sameo
Add controls to allow custom shaping of the ultrasonic response. This
custom shaping can be turned on/off at runtime, although, it should be
noted that settings will not affect a currently open audio stream,
they will be applied when the next audio stream is started.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
---
Changes since v1:
- Now uses the existing BYTES_EXT control
- Delayed other patch in the series, this patch should
still work fine, just some pointless caching of the
DAC_COMP registers will happen
include/linux/mfd/arizona/core.h | 3 ++
sound/soc/codecs/arizona.c | 34 +++++++++++++++++++++
sound/soc/codecs/wm5102.c | 62 ++++++++++++++++++++++++++++++++++++++
3 files changed, 99 insertions(+), 0 deletions(-)
diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h
index 11783b5..5592651 100644
--- a/include/linux/mfd/arizona/core.h
+++ b/include/linux/mfd/arizona/core.h
@@ -113,6 +113,9 @@ struct arizona {
int tdm_width[ARIZONA_MAX_AIF];
int tdm_slots[ARIZONA_MAX_AIF];
+
+ uint16_t dac_comp_coeff;
+ uint8_t dac_comp_enabled;
};
int arizona_clk32k_enable(struct arizona *arizona);
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index e77f61c..41b56ee 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1127,6 +1127,31 @@ static int arizona_startup(struct snd_pcm_substream *substream,
constraint);
}
+static void arizona_wm5102_set_dac_comp(struct snd_soc_codec *codec,
+ unsigned int rate)
+{
+ struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);
+ struct arizona *arizona = priv->arizona;
+ struct reg_default dac_comp[] = {
+ { 0x80, 0x3 },
+ { ARIZONA_DAC_COMP_1, 0 },
+ { ARIZONA_DAC_COMP_2, 0 },
+ { 0x80, 0x0 },
+ };
+
+ mutex_lock(&codec->mutex);
+
+ dac_comp[1].def = arizona->dac_comp_coeff;
+ if (rate >= 176400)
+ dac_comp[2].def = arizona->dac_comp_enabled;
+
+ mutex_unlock(&codec->mutex);
+
+ regmap_multi_reg_write(arizona->regmap,
+ dac_comp,
+ ARRAY_SIZE(dac_comp));
+}
+
static int arizona_hw_params_rate(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -1153,6 +1178,15 @@ static int arizona_hw_params_rate(struct snd_pcm_substream *substream,
switch (dai_priv->clk) {
case ARIZONA_CLK_SYSCLK:
+ switch (priv->arizona->type) {
+ case WM5102:
+ arizona_wm5102_set_dac_comp(codec,
+ params_rate(params));
+ break;
+ default:
+ break;
+ }
+
snd_soc_update_bits(codec, ARIZONA_SAMPLE_RATE_1,
ARIZONA_SAMPLE_RATE_1_MASK, sr_val);
if (base)
diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c
index 289b64d..8613504 100644
--- a/sound/soc/codecs/wm5102.c
+++ b/sound/soc/codecs/wm5102.c
@@ -612,6 +612,62 @@ static int wm5102_sysclk_ev(struct snd_soc_dapm_widget *w,
return 0;
}
+static int wm5102_out_comp_coeff_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct arizona *arizona = dev_get_drvdata(codec->dev->parent);
+ uint16_t data;
+
+ mutex_lock(&codec->mutex);
+ data = cpu_to_be16(arizona->dac_comp_coeff);
+ memcpy(ucontrol->value.bytes.data, &data, sizeof(data));
+ mutex_unlock(&codec->mutex);
+
+ return 0;
+}
+
+static int wm5102_out_comp_coeff_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct arizona *arizona = dev_get_drvdata(codec->dev->parent);
+
+ mutex_lock(&codec->mutex);
+ memcpy(&arizona->dac_comp_coeff, ucontrol->value.bytes.data,
+ sizeof(arizona->dac_comp_coeff));
+ arizona->dac_comp_coeff = be16_to_cpu(arizona->dac_comp_coeff);
+ mutex_unlock(&codec->mutex);
+
+ return 0;
+}
+
+static int wm5102_out_comp_switch_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct arizona *arizona = dev_get_drvdata(codec->dev->parent);
+
+ mutex_lock(&codec->mutex);
+ ucontrol->value.integer.value[0] = arizona->dac_comp_enabled;
+ mutex_unlock(&codec->mutex);
+
+ return 0;
+}
+
+static int wm5102_out_comp_switch_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct arizona *arizona = dev_get_drvdata(codec->dev->parent);
+
+ mutex_lock(&codec->mutex);
+ arizona->dac_comp_enabled = ucontrol->value.integer.value[0];
+ mutex_unlock(&codec->mutex);
+
+ return 0;
+}
+
static const char *wm5102_osr_text[] = {
"Low power", "Normal", "High performance",
};
@@ -843,6 +899,12 @@ SOC_SINGLE_TLV("Noise Gate Threshold Volume", ARIZONA_NOISE_GATE_CONTROL,
ARIZONA_NGATE_THR_SHIFT, 7, 1, ng_tlv),
SOC_ENUM("Noise Gate Hold", arizona_ng_hold),
+SND_SOC_BYTES_EXT("Output Compensation Coefficient", 2,
+ wm5102_out_comp_coeff_get, wm5102_out_comp_coeff_put),
+
+SOC_SINGLE_EXT("Output Compensation Switch", 0, 0, 1, 0,
+ wm5102_out_comp_switch_get, wm5102_out_comp_switch_put),
+
WM5102_NG_SRC("HPOUT1L", ARIZONA_NOISE_GATE_SELECT_1L),
WM5102_NG_SRC("HPOUT1R", ARIZONA_NOISE_GATE_SELECT_1R),
WM5102_NG_SRC("HPOUT2L", ARIZONA_NOISE_GATE_SELECT_2L),
--
1.7.2.5
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] ASoC: wm5102: Add controls to allow shaping of ultrasonic response
2014-06-06 13:14 [PATCH v2] ASoC: wm5102: Add controls to allow shaping of ultrasonic response Charles Keepax
@ 2014-06-09 20:20 ` Mark Brown
0 siblings, 0 replies; 2+ messages in thread
From: Mark Brown @ 2014-06-09 20:20 UTC (permalink / raw)
To: Charles Keepax; +Cc: lee.jones, alsa-devel, patches, lgirdwood, sameo
[-- Attachment #1.1: Type: text/plain, Size: 358 bytes --]
On Fri, Jun 06, 2014 at 02:14:05PM +0100, Charles Keepax wrote:
> Add controls to allow custom shaping of the ultrasonic response. This
> custom shaping can be turned on/off at runtime, although, it should be
> noted that settings will not affect a currently open audio stream,
> they will be applied when the next audio stream is started.
Applied, thanks.
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