On Tue, Dec 2, 2008 at 1:37 AM, Mark Brown <
broonie at opensource.wolfsonmicro.com> wrote:
> From: Peter Ujfalusi <peter.ujfalusi at nokia.com>
>
> All outputs have dedicated gain controls except the
> HandsFree output.
>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi at nokia.com>
> Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
> ---
> sound/soc/codecs/twl4030.c | 21 +++++++++++++++++++++
> 1 files changed, 21 insertions(+), 0 deletions(-)
>
> diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
> index 1dae73a..ffd5120 100644
> --- a/sound/soc/codecs/twl4030.c
> +++ b/sound/soc/codecs/twl4030.c
> @@ -367,6 +367,12 @@ static DECLARE_TLV_DB_SCALE(digital_coarse_tlv, 0,
> 600, 0);
> static DECLARE_TLV_DB_SCALE(analog_tlv, -2400, 200, 0);
>
> /*
> + * Gain controls tied to outputs
> + * -6 dB to 6 dB in 6 dB steps (mute instead of -12)
> + */
> +static DECLARE_TLV_DB_SCALE(output_tvl, -1200, 600, 1);
> +
> +/*
> * Capture gain after the ADCs
> * from 0 dB to 31 dB in 1 dB steps
> */
> @@ -395,6 +401,21 @@ static const struct snd_kcontrol_new
> twl4030_snd_controls[] = {
> TWL4030_REG_ARXL2_APGA_CTL, TWL4030_REG_ARXR2_APGA_CTL,
> 3, 0x12, 1, analog_tlv),
>
> + /* Separate output gain controls */
> + SOC_DOUBLE_R_TLV_TWL4030("",
> + TWL4030_REG_PREDL_CTL, TWL4030_REG_PREDR_CTL,
> + 4, 3, 0, output_tvl),
With this implementation the
#amixer cset numid=16 3
numid=16,iface=MIXER,name='PreDriv Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=209,step=0
: values=3,3
| dBscale-min=-12.00dB,step=6.00dB,mute=1
The min and max values are from 0 to 209 and they r repeating for every 4
steps
Can any one explain this
>
> +
> + SOC_DOUBLE_TLV_TWL4030("Headset Playback Volume",
> + TWL4030_REG_HS_GAIN_SET, 0, 2, 3, 0, output_tvl),
With this implementation the min and max values seems to be shown like 0 to
60 instead of 0 to 3
and the range is repeatring between 0 to 60
Means 4 again 0 and 7 a bit max, its repeating..
>
> +
> + SOC_DOUBLE_R_TLV_TWL4030("Carkit Playback Volume",
> + TWL4030_REG_PRECKL_CTL, TWL4030_REG_PRECKR_CTL,
> + 4, 3, 0, output_tvl),
> +
> + SOC_SINGLE_TLV_TWL4030("Earpiece Playback Volume",
> + TWL4030_REG_EAR_CTL, 4, 3, 0, output_tvl),
> +
> /* Common capture gain controls */
> SOC_DOUBLE_R_TLV("Capture Volume",
> TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA,
> --
> 1.5.6.5
>
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>
Thanks ,,
(: Naveen Krishna Ch :)