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Subject[alsa-devel] [PATCH 2/9] ASoC: da7210: Add support for line input and mic
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DA7210 has three line inputs (AUX1 Left, AUX1 Right and AUX2) and
a stereo MIC. This patch adds gain controls for MIC, AUX1, AUX2 as
well as INPGA. It also adds a control to set MIC BIAS voltage.

Tested on Samsung SMDK6410 board with DA7210 evaluation board.

Signed-off-by: Ashish Chavan <ashish.chavan@kpitcummins.com>
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
---
sound/soc/codecs/da7210.c | 79 +++++++++++++++++++++++++++++++++++++++-----
1 files changed, 70 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c
index eef861d..6039ada 100644
--- a/sound/soc/codecs/da7210.c
+++ b/sound/soc/codecs/da7210.c
@@ -30,6 +30,10 @@
#define DA7210_STARTUP1 0x03
#define DA7210_MIC_L 0x07
#define DA7210_MIC_R 0x08
+#define DA7210_AUX1_L 0x09
+#define DA7210_AUX1_R 0x0A
+#define DA7210_AUX2 0x0B
+#define DA7210_IN_GAIN 0x0C
#define DA7210_INMIX_L 0x0D
#define DA7210_INMIX_R 0x0E
#define DA7210_ADC_HPF 0x0F
@@ -147,10 +151,23 @@
#define DA7210_OUT2_OUTMIX_L (1 << 6)
#define DA7210_OUT2_EN (1 << 7)

+/* AUX1_L bit fields */
+#define DA7210_AUX1_L_EN (1 << 7)
+
+/* AUX1_R bit fields */
+#define DA7210_AUX1_R_EN (1 << 7)
+
+/* AUX2 bit fields */
+#define DA7210_AUX2_EN (1 << 3)
+
/* Default gain/vol values */
#define DA7210_DFLT_DAC_GAIN 0x10 /* 0dB */
#define DA7210_DFLT_OUT1_VOL 0x35 /* 0dB */
#define DA7210_DFLT_OUT2_VOL 0x06 /* 0dB */
+#define DA7210_DFLT_MIC_VOL 0x02 /* 6dB */
+#define DA7210_DFLT_AUX1_VOL 0x35 /* 6dB */
+#define DA7210_DFLT_AUX2_VOL 0x02 /* 6dB */
+#define DA7210_DFLT_INPGA_VOL 0x07 /* 6dB */

#define DA7210_VERSION "0.0.1"

@@ -170,6 +187,9 @@
*/
static const DECLARE_TLV_DB_SCALE(hp_out_tlv, -7950, 150, 1);
static const DECLARE_TLV_DB_SCALE(dac_gain_tlv, -7725, 75, 0);
+static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, -600, 600, 0);
+static const DECLARE_TLV_DB_SCALE(aux2_vol_tlv, -600, 600, 0);
+static const DECLARE_TLV_DB_SCALE(inpga_gain_tlv, -450, 150, 0);

static const unsigned int lineout_vol_tlv[] = {
TLV_DB_RANGE_HEAD(2),
@@ -185,6 +205,20 @@ static const unsigned int mono_vol_tlv[] = {
0x3, 0x7, TLV_DB_SCALE_ITEM(-1800, 600, 0)
};

+static const unsigned int aux1_vol_tlv[] = {
+ TLV_DB_RANGE_HEAD(2),
+ 0x0, 0x10, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
+ /* -48dB to 21dB */
+ 0x11, 0x3f, TLV_DB_SCALE_ITEM(-4800, 150, 0)
+};
+
+static const char *da7210_mic_bias_voltage_txt[] = {
+ "1.5", "1.6", "2.2", "2.3"
+};
+
+static const struct soc_enum da7210_mic_bias =
+ SOC_ENUM_SINGLE(DA7210_MIC_L, 4, 4, da7210_mic_bias_voltage_txt);
+
static const struct snd_kcontrol_new da7210_snd_controls[] = {

SOC_DOUBLE_R_TLV("HeadPhone Playback Volume",
@@ -198,6 +232,22 @@ static const struct snd_kcontrol_new da7210_snd_controls[] = {
0, 0x3f, 0, lineout_vol_tlv),
SOC_SINGLE_TLV("Mono Playback Volume", DA7210_OUT2, 0, 0x7, 0,
mono_vol_tlv),
+
+ /* MIC related controls */
+ SOC_DOUBLE_R_TLV("Mic Capture Volume",
+ DA7210_MIC_L, DA7210_MIC_R,
+ 0, 0x5, 0, mic_vol_tlv),
+ SOC_ENUM("Mic Bias Voltage", da7210_mic_bias),
+
+ /* AUX related controls */
+ SOC_DOUBLE_R_TLV("Aux1 Capture Volume",
+ DA7210_AUX1_L, DA7210_AUX1_R,
+ 0, 0x3f, 0, aux1_vol_tlv),
+ SOC_SINGLE_TLV("Aux2 Capture Volume", DA7210_AUX2, 0, 0x3, 0,
+ aux2_vol_tlv),
+
+ SOC_DOUBLE_TLV("In PGA Capture Volume", DA7210_IN_GAIN, 0, 4, 0xF, 0,
+ inpga_gain_tlv),
};

/* Codec private data */
@@ -251,13 +301,9 @@ static int da7210_startup(struct snd_pcm_substream *substream,
snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10);

} else {
- /* Volume 7 */
- snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7);
- snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7);
-
- /* Enable Mic */
- snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1);
- snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1);
+ /* Enable Mic,AUX1 and AUX2 */
+ snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0xD);
+ snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0xD);
}

return 0;
@@ -492,8 +538,10 @@ static int da7210_probe(struct snd_soc_codec *codec)
*/

/* Enable Left & Right MIC PGA and Mic Bias */
- snd_soc_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
- snd_soc_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);
+ snd_soc_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN |
+ DA7210_DFLT_MIC_VOL);
+ snd_soc_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN |
+ DA7210_DFLT_MIC_VOL);

/* Enable Left and Right input PGA */
snd_soc_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
@@ -533,6 +581,19 @@ static int da7210_probe(struct snd_soc_codec *codec)
DA7210_OUT2_EN | DA7210_OUT2_OUTMIX_L |
DA7210_OUT2_OUTMIX_R);

+ /* Enable Aux1 and set default vol */
+ snd_soc_write(codec, DA7210_AUX1_L, DA7210_DFLT_AUX1_VOL |
+ DA7210_AUX1_L_EN);
+ snd_soc_write(codec, DA7210_AUX1_R, DA7210_DFLT_AUX1_VOL |
+ DA7210_AUX1_R_EN);
+ /* Enable Aux2 and set default vol */
+ snd_soc_write(codec, DA7210_AUX2, DA7210_DFLT_AUX2_VOL |
+ DA7210_AUX2_EN);
+
+ /* Set default In PGA gain */
+ snd_soc_write(codec, DA7210_IN_GAIN, DA7210_DFLT_INPGA_VOL |
+ (DA7210_DFLT_INPGA_VOL << 4));
+
/* Diable PLL and bypass it */
snd_soc_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);

--
1.7.1



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