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Subject[PATCH 2/2][RESEND] ASoC: adau1761: Add ALC controls
Date
From: Lars-Peter Clausen <lars@metafoo.de>

The adau1761 has a automatic level control block that can adjust the gain
for the differential input PGA. This patch adds ALSA controls for enabling
and changing the parameter settings for the ALC.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---
sound/soc/codecs/adau1761.c | 109 ++++++++++++++++++++++++++++++++++++
1 file changed, 109 insertions(+)

diff --git a/sound/soc/codecs/adau1761.c b/sound/soc/codecs/adau1761.c
index a9ef735f8b4e..5ca9b744b7d8 100644
--- a/sound/soc/codecs/adau1761.c
+++ b/sound/soc/codecs/adau1761.c
@@ -29,6 +29,9 @@
#define ADAU1761_LEFT_DIFF_INPUT_VOL 0x400e
#define ADAU1761_RIGHT_DIFF_INPUT_VOL 0x400f
#define ADAU1761_ALC_CTRL0 0x4011
+#define ADAU1761_ALC_CTRL1 0x4012
+#define ADAU1761_ALC_CTRL2 0x4013
+#define ADAU1761_ALC_CTRL3 0x4014
#define ADAU1761_PLAY_LR_MIXER_LEFT 0x4020
#define ADAU1761_PLAY_MIXER_LEFT0 0x401c
#define ADAU1761_PLAY_MIXER_LEFT1 0x401d
@@ -73,6 +76,9 @@ static const struct reg_default adau1761_reg_defaults[] = {
{ ADAU1761_REC_MIXER_RIGHT1, 0x00 },
{ ADAU1761_LEFT_DIFF_INPUT_VOL, 0x00 },
{ ADAU1761_ALC_CTRL0, 0x00 },
+ { ADAU1761_ALC_CTRL1, 0x00 },
+ { ADAU1761_ALC_CTRL2, 0x00 },
+ { ADAU1761_ALC_CTRL3, 0x00 },
{ ADAU1761_RIGHT_DIFF_INPUT_VOL, 0x00 },
{ ADAU1761_PLAY_LR_MIXER_LEFT, 0x00 },
{ ADAU1761_PLAY_MIXER_LEFT0, 0x00 },
@@ -123,6 +129,10 @@ static const DECLARE_TLV_DB_SCALE(adau1761_sidetone_tlv, -1800, 300, 1);
static const DECLARE_TLV_DB_SCALE(adau1761_boost_tlv, -600, 600, 1);
static const DECLARE_TLV_DB_SCALE(adau1761_pga_boost_tlv, -2000, 2000, 1);

+static const DECLARE_TLV_DB_SCALE(adau1761_alc_max_gain_tlv, -1200, 600, 0);
+static const DECLARE_TLV_DB_SCALE(adau1761_alc_target_tlv, -2850, 150, 0);
+static const DECLARE_TLV_DB_SCALE(adau1761_alc_ng_threshold_tlv, -7650, 150, 0);
+
static const unsigned int adau1761_bias_select_values[] = {
0, 2, 3,
};
@@ -160,9 +170,91 @@ static const char * const adau1761_pga_slew_time_text[] = {
"96 ms",
};

+static const char * const adau1761_alc_function_text[] = {
+ "Off",
+ "Right",
+ "Left",
+ "Stereo",
+ "DSP control",
+};
+
+static const char * const adau1761_alc_hold_time_text[] = {
+ "2.67 ms",
+ "5.34 ms",
+ "10.68 ms",
+ "21.36 ms",
+ "42.72 ms",
+ "85.44 ms",
+ "170.88 ms",
+ "341.76 ms",
+ "683.52 ms",
+ "1367 ms",
+ "2734.1 ms",
+ "5468.2 ms",
+ "10936 ms",
+ "21873 ms",
+ "43745 ms",
+ "87491 ms",
+};
+
+static const char * const adau1761_alc_attack_time_text[] = {
+ "6 ms",
+ "12 ms",
+ "24 ms",
+ "48 ms",
+ "96 ms",
+ "192 ms",
+ "384 ms",
+ "768 ms",
+ "1540 ms",
+ "3070 ms",
+ "6140 ms",
+ "12290 ms",
+ "24580 ms",
+ "49150 ms",
+ "98300 ms",
+ "196610 ms",
+};
+
+static const char * const adau1761_alc_decay_time_text[] = {
+ "24 ms",
+ "48 ms",
+ "96 ms",
+ "192 ms",
+ "384 ms",
+ "768 ms",
+ "15400 ms",
+ "30700 ms",
+ "61400 ms",
+ "12290 ms",
+ "24580 ms",
+ "49150 ms",
+ "98300 ms",
+ "196610 ms",
+ "393220 ms",
+ "786430 ms",
+};
+
+static const char * const adau1761_alc_ng_type_text[] = {
+ "Hold",
+ "Mute",
+ "Fade",
+ "Fade + Mute",
+};
+
static SOC_VALUE_ENUM_SINGLE_DECL(adau1761_pga_slew_time_enum,
ADAU1761_ALC_CTRL0, 6, 0x3, adau1761_pga_slew_time_text,
adau1761_pga_slew_time_values);
+static SOC_ENUM_SINGLE_DECL(adau1761_alc_function_enum,
+ ADAU1761_ALC_CTRL0, 0, adau1761_alc_function_text);
+static SOC_ENUM_SINGLE_DECL(adau1761_alc_hold_time_enum,
+ ADAU1761_ALC_CTRL1, 4, adau1761_alc_hold_time_text);
+static SOC_ENUM_SINGLE_DECL(adau1761_alc_attack_time_enum,
+ ADAU1761_ALC_CTRL2, 4, adau1761_alc_attack_time_text);
+static SOC_ENUM_SINGLE_DECL(adau1761_alc_decay_time_enum,
+ ADAU1761_ALC_CTRL2, 0, adau1761_alc_decay_time_text);
+static SOC_ENUM_SINGLE_DECL(adau1761_alc_ng_type_enum,
+ ADAU1761_ALC_CTRL3, 6, adau1761_alc_ng_type_text);

static const struct snd_kcontrol_new adau1761_jack_detect_controls[] = {
SOC_SINGLE("Speaker Auto-mute Switch", ADAU1761_DIGMIC_JACKDETECT,
@@ -180,6 +272,20 @@ static const struct snd_kcontrol_new adau1761_differential_mode_controls[] = {
ADAU1761_REC_MIXER_RIGHT1, 3, 2, 0, adau1761_pga_boost_tlv),

SOC_ENUM("PGA Capture Slew Time", adau1761_pga_slew_time_enum),
+
+ SOC_SINGLE_TLV("ALC Capture Max Gain Volume", ADAU1761_ALC_CTRL0,
+ 3, 7, 0, adau1761_alc_max_gain_tlv),
+ SOC_ENUM("ALC Capture Function", adau1761_alc_function_enum),
+ SOC_ENUM("ALC Capture Hold Time", adau1761_alc_hold_time_enum),
+ SOC_SINGLE_TLV("ALC Capture Target Volume", ADAU1761_ALC_CTRL1,
+ 0, 15, 0, adau1761_alc_target_tlv),
+ SOC_ENUM("ALC Capture Attack Time", adau1761_alc_decay_time_enum),
+ SOC_ENUM("ALC Capture Decay Time", adau1761_alc_attack_time_enum),
+ SOC_ENUM("ALC Capture Noise Gate Type", adau1761_alc_ng_type_enum),
+ SOC_SINGLE("ALC Capture Noise Gate Switch",
+ ADAU1761_ALC_CTRL3, 5, 1, 0),
+ SOC_SINGLE_TLV("ALC Capture Noise Gate Threshold Volume",
+ ADAU1761_ALC_CTRL3, 0, 31, 0, adau1761_alc_ng_threshold_tlv),
};

static const struct snd_kcontrol_new adau1761_single_mode_controls[] = {
@@ -652,6 +758,9 @@ static bool adau1761_readable_register(struct device *dev, unsigned int reg)
case ADAU1761_CLK_ENABLE0:
case ADAU1761_CLK_ENABLE1:
case ADAU1761_ALC_CTRL0:
+ case ADAU1761_ALC_CTRL1:
+ case ADAU1761_ALC_CTRL2:
+ case ADAU1761_ALC_CTRL3:
return true;
default:
break;
--
2.20.1
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