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ASoC: da7210: Add support for ALC and Noise suppression

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This patch adds controls to set following ALC parameters,
 - Max gain, Min gain, Noise gain, Attack rate, Release rate and delay

It also adds a switch to enable/disable noise suppression.

As per DA7210 data sheet, ALC and noise suppression can be enabled
only if certain conditions are met. This condition checks are handled
by simply using "_EXT" version of controls to capture change events.

Signed-off-by: Ashish Chavan <ashish.chavan@kpitcummins.com>
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Acked-by: Liam Girdwod <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Ashish Chavan 2011-10-19 14:24:37 +05:30 committed by Mark Brown
parent 5eda19497b
commit de5eaf844e
1 changed files with 110 additions and 0 deletions
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110
sound/soc/codecs/da7210.c
View file

@ -26,11 +26,15 @@
#include <sound/tlv.h>
/* DA7210 register space */
#define DA7210_CONTROL 0x01
#define DA7210_STATUS 0x02
#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
@ -59,6 +63,12 @@
#define DA7210_PLL_DIV2 0x2A
#define DA7210_PLL_DIV3 0x2B
#define DA7210_PLL 0x2C
#define DA7210_ALC_MAX 0x83
#define DA7210_ALC_MIN 0x84
#define DA7210_ALC_NOIS 0x85
#define DA7210_ALC_ATT 0x86
#define DA7210_ALC_REL 0x87
#define DA7210_ALC_DEL 0x88
#define DA7210_A_HID_UNLOCK 0x8A
#define DA7210_A_TEST_UNLOCK 0x8B
#define DA7210_A_PLL1 0x90
@ -81,6 +91,7 @@
#define DA7210_IN_R_EN (1 << 7)
/* ADC bit fields */
#define DA7210_ADC_ALC_EN (1 << 0)
#define DA7210_ADC_L_EN (1 << 3)
#define DA7210_ADC_R_EN (1 << 7)
@ -150,6 +161,29 @@
/* SOFTMUTE bit fields */
#define DA7210_RAMP_EN (1 << 6)
/* CONTROL bit fields */
#define DA7210_NOISE_SUP_EN (1 << 3)
/* IN_GAIN bit fields */
#define DA7210_INPGA_L_VOL (0x0F << 0)
#define DA7210_INPGA_R_VOL (0xF0 << 0)
/* ZERO_CROSS bit fields */
#define DA7210_AUX1_L_ZC (1 << 0)
#define DA7210_AUX1_R_ZC (1 << 1)
#define DA7210_HP_L_ZC (1 << 6)
#define DA7210_HP_R_ZC (1 << 7)
/* AUX1_L bit fields */
#define DA7210_AUX1_L_VOL (0x3F << 0)
/* AUX1_R bit fields */
#define DA7210_AUX1_R_VOL (0x3F << 0)
/* Minimum INPGA and AUX1 volume to enable noise suppression */
#define DA7210_INPGA_MIN_VOL_NS 0x0A /* 10.5dB */
#define DA7210_AUX1_MIN_VOL_NS 0x35 /* 6dB */
#define DA7210_VERSION "0.0.1"
/*
@ -202,6 +236,69 @@ static const char *da7210_hp_mode_txt[] = {
static const struct soc_enum da7210_hp_mode_sel =
SOC_ENUM_SINGLE(DA7210_HP_CFG, 0, 2, da7210_hp_mode_txt);
/* ALC can be enabled only if noise suppression is disabled */
static int da7210_put_alc_sw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
if (ucontrol->value.integer.value[0]) {
/* Check if noise suppression is enabled */
if (snd_soc_read(codec, DA7210_CONTROL) & DA7210_NOISE_SUP_EN) {
dev_dbg(codec->dev,
"Disable noise suppression to enable ALC\n");
return -EINVAL;
}
}
/* If all conditions are met or we are actually disabling ALC */
return snd_soc_put_volsw(kcontrol, ucontrol);
}
/* Noise suppression can be enabled only if following conditions are met
* ALC disabled
* ZC enabled for HP and AUX1 PGA
* INPGA_L_VOL and INPGA_R_VOL >= 10.5 dB
* AUX1_L_VOL and AUX1_R_VOL >= 6 dB
*/
static int da7210_put_noise_sup_sw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
u8 val;
if (ucontrol->value.integer.value[0]) {
/* Check if ALC is enabled */
if (snd_soc_read(codec, DA7210_ADC) & DA7210_ADC_ALC_EN)
goto err;
/* Check ZC for HP and AUX1 PGA */
if ((snd_soc_read(codec, DA7210_ZERO_CROSS) &
(DA7210_AUX1_L_ZC | DA7210_AUX1_R_ZC | DA7210_HP_L_ZC |
DA7210_HP_R_ZC)) != (DA7210_AUX1_L_ZC |
DA7210_AUX1_R_ZC | DA7210_HP_L_ZC | DA7210_HP_R_ZC))
goto err;
/* Check INPGA_L_VOL and INPGA_R_VOL */
val = snd_soc_read(codec, DA7210_IN_GAIN);
if (((val & DA7210_INPGA_L_VOL) < DA7210_INPGA_MIN_VOL_NS) ||
(((val & DA7210_INPGA_R_VOL) >> 4) <
DA7210_INPGA_MIN_VOL_NS))
goto err;
/* Check AUX1_L_VOL and AUX1_R_VOL */
if (((snd_soc_read(codec, DA7210_AUX1_L) & DA7210_AUX1_L_VOL) <
DA7210_AUX1_MIN_VOL_NS) ||
((snd_soc_read(codec, DA7210_AUX1_R) & DA7210_AUX1_R_VOL) <
DA7210_AUX1_MIN_VOL_NS))
goto err;
}
/* If all conditions are met or we are actually disabling Noise sup */
return snd_soc_put_volsw(kcontrol, ucontrol);
err:
return -EINVAL;
}
static const struct snd_kcontrol_new da7210_snd_controls[] = {
SOC_DOUBLE_R_TLV("HeadPhone Playback Volume",
@ -260,6 +357,19 @@ static const struct snd_kcontrol_new da7210_snd_controls[] = {
SOC_DOUBLE("Headphone ZC Switch", DA7210_ZERO_CROSS, 6, 7, 1, 0),
SOC_ENUM("Headphone Class", da7210_hp_mode_sel),
/* ALC controls */
SOC_SINGLE_EXT("ALC Enable Switch", DA7210_ADC, 0, 1, 0,
snd_soc_get_volsw, da7210_put_alc_sw),
SOC_SINGLE("ALC Capture Max Volume", DA7210_ALC_MAX, 0, 0x3F, 0),
SOC_SINGLE("ALC Capture Min Volume", DA7210_ALC_MIN, 0, 0x3F, 0),
SOC_SINGLE("ALC Capture Noise Volume", DA7210_ALC_NOIS, 0, 0x3F, 0),
SOC_SINGLE("ALC Capture Attack Rate", DA7210_ALC_ATT, 0, 0xFF, 0),
SOC_SINGLE("ALC Capture Release Rate", DA7210_ALC_REL, 0, 0xFF, 0),
SOC_SINGLE("ALC Capture Release Delay", DA7210_ALC_DEL, 0, 0xFF, 0),
SOC_SINGLE_EXT("Noise Suppression Enable Switch", DA7210_CONTROL, 3, 1,
0, snd_soc_get_volsw, da7210_put_noise_sup_sw),
};
/* Codec private data */