Replaces SOC_ENUM with custom SOC_SINGLE_TLV for Sidetone volume

Signed-off-by: Arun KS arunks@mistralsolutions.com --- sound/soc/codecs/tlv320aic23.c | 53 +++++++++++++++++++++++++++++++++++++--- 1 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c index c2d35e9..bb7cfb8 100644 --- a/sound/soc/codecs/tlv320aic23.c +++ b/sound/soc/codecs/tlv320aic23.c @@ -113,7 +113,6 @@ static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg,

static const char *rec_src_text[] = { "Line", "Mic" }; static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"}; -static const char *sidetone_text[] = {"-6db", "-9db", "-12db", "-18db", "0db"};

static const struct soc_enum rec_src_enum = SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); @@ -125,11 +124,56 @@ static const struct soc_enum tlv320aic23_rec_src = SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); static const struct soc_enum tlv320aic23_deemph = SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text); -static const struct soc_enum tlv320aic23_sidetone = - SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 6, 5, sidetone_text);

static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0); static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0); +static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0); + +static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + u16 val, reg; + + val = (ucontrol->value.integer.value[0] & 0x07); + + /* linear conversion to userspace + * 000 = -6db + * 001 = -9db + * 010 = -12db + * 011 = -18db (Min) + * 100 = 0db (Max) + */ + val = (val >= 4) ? 4 : (3 - val); + + reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (~0x1C0); + tlv320aic23_write(codec, TLV320AIC23_ANLG, reg | (val << 6)); + + return 0; +} + +static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + u16 val; + + val = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (0x1C0); + val = val >> 6; + val = (val >= 4) ? 4 : (3 - val); + ucontrol->value.integer.value[0] = val; + return 0; + +} + +#define SOC_TLV320AIC23_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ + .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ + SNDRV_CTL_ELEM_ACCESS_READWRITE,\ + .tlv.p = (tlv_array), \ + .info = snd_soc_info_volsw, .get = snd_soc_tlv320aic23_get_volsw,\ + .put = snd_soc_tlv320aic23_put_volsw, \ + .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }

static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = { SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL, @@ -141,7 +185,8 @@ static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = { TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv), SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1), SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0), - SOC_ENUM("Sidetone Gain", tlv320aic23_sidetone), + SOC_TLV320AIC23_SINGLE_TLV("Sidetone Volume", TLV320AIC23_ANLG, + 6, 4, 0, sidetone_vol_tlv), SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph), };