Re: [PATCH v9 2/2] Add mixer controls: Line-In, FM-In, Mic 2, Capture Source, Differential Line-In.

From: Chen-Yu Tsai
Date: Wed Aug 31 2016 - 02:24:56 EST

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In reply to: Danny Milosavljevic: "[PATCH v9 2/2] Add mixer controls: Line-In, FM-In, Mic 2, Capture Source, Differential Line-In."
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Hi,

On Tue, Aug 30, 2016 at 1:44 PM, Danny Milosavljevic
<dannym@xxxxxxxxxxxxxxx> wrote:
> Note: Mic1 Capture Volume is in a different register on A20 than on A10.
> Note: Mic2 Capture Volume is in a different register on A20 than on A10.

The subject would be better saying "Add support for Line-In, FM-In, Mic 2
and Capture Source paths". You are not just adding mixer controls, but
DAPM widgets and routes as well.

A general description and any quirks of the hardware would be nice,
such as the capture source has a mux and not a mixer, in addition to
what you mentioned.

> ---
> sound/soc/sunxi/sun4i-codec.c | 256 ++++++++++++++++++++++++++++++++++++++----
> 1 file changed, 236 insertions(+), 20 deletions(-)
>
> diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
> index 30f4ea2..f510e6d 100644
> --- a/sound/soc/sunxi/sun4i-codec.c
> +++ b/sound/soc/sunxi/sun4i-codec.c
> @@ -59,9 +59,20 @@
> #define SUN4I_CODEC_DAC_ACTL_DACAENR (31)
> #define SUN4I_CODEC_DAC_ACTL_DACAENL (30)
> #define SUN4I_CODEC_DAC_ACTL_MIXEN (29)
> +#define SUN4I_CODEC_DAC_ACTL_LNG (26)
> +#define SUN4I_CODEC_DAC_ACTL_FMG (23)
> +#define SUN4I_CODEC_DAC_ACTL_MICG (20)
> +#define SUN4I_CODEC_DAC_ACTL_LLNS (19)
> +#define SUN4I_CODEC_DAC_ACTL_RLNS (18)
> +#define SUN4I_CODEC_DAC_ACTL_LFMS (17)
> +#define SUN4I_CODEC_DAC_ACTL_RFMS (16)
> #define SUN4I_CODEC_DAC_ACTL_LDACLMIXS (15)
> #define SUN4I_CODEC_DAC_ACTL_RDACRMIXS (14)
> #define SUN4I_CODEC_DAC_ACTL_LDACRMIXS (13)
> +#define SUN4I_CODEC_DAC_ACTL_MIC1LS (12)
> +#define SUN4I_CODEC_DAC_ACTL_MIC1RS (11)
> +#define SUN4I_CODEC_DAC_ACTL_MIC2LS (10)
> +#define SUN4I_CODEC_DAC_ACTL_MIC2RS (9)
> #define SUN4I_CODEC_DAC_ACTL_DACPAS (8)
> #define SUN4I_CODEC_DAC_ACTL_MIXPAS (7)
> #define SUN4I_CODEC_DAC_ACTL_PA_MUTE (6)
> @@ -87,8 +98,12 @@
> #define SUN4I_CODEC_ADC_ACTL_PREG1EN (29)
> #define SUN4I_CODEC_ADC_ACTL_PREG2EN (28)
> #define SUN4I_CODEC_ADC_ACTL_VMICEN (27)
> -#define SUN4I_CODEC_ADC_ACTL_VADCG (20)
> +#define SUN4I_CODEC_ADC_ACTL_PREG1 (25)
> +#define SUN4I_CODEC_ADC_ACTL_PREG2 (23)
> +#define SUN4I_CODEC_ADC_ACTL_ADCG (20)
> #define SUN4I_CODEC_ADC_ACTL_ADCIS (17)
> +#define SUN4I_CODEC_ADC_ACTL_LNRDF (16)
> +#define SUN4I_CODEC_ADC_ACTL_LNPREG (13)
> #define SUN4I_CODEC_ADC_ACTL_PA_EN (4)
> #define SUN4I_CODEC_ADC_ACTL_DDE (3)
> #define SUN4I_CODEC_ADC_DEBUG (0x2c)
> @@ -100,6 +115,9 @@
> #define SUN7I_CODEC_AC_DAC_CAL (0x38)
> #define SUN7I_CODEC_AC_MIC_PHONE_CAL (0x3c)
>
> +#define SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG1 (29)
> +#define SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG2 (26)
> +
> struct sun4i_codec {
> struct device *dev;
> struct regmap *regmap;
> @@ -509,23 +527,142 @@ static const struct snd_kcontrol_new sun4i_codec_pa_mute =
> SUN4I_CODEC_DAC_ACTL_PA_MUTE, 1, 0);
>
> static DECLARE_TLV_DB_SCALE(sun4i_codec_pa_volume_scale, -6300, 100, 1);
> +static DECLARE_TLV_DB_SCALE(sun4i_codec_linein_loopback_gain_scale,

X_playback_gain_scale, matching the control names later.

> + -150,
> + 150,
> + 0);
> +static DECLARE_TLV_DB_SCALE(sun4i_codec_linein_preamp_gain_scale,
> + -1200,
> + 300,
> + 0);
> +static DECLARE_TLV_DB_SCALE(sun4i_codec_fmin_loopback_gain_scale,
> + -450,
> + 150,
> + 0);
> +static DECLARE_TLV_DB_SCALE(sun4i_codec_micin_loopback_gain_scale,
> + -450,
> + 150,
> + 0);

Please merge the above 2. Also can they be const? Same for all the
other TLV structures.

> +static DECLARE_TLV_DB_RANGE(sun4i_codec_micin_preamp_gain_scale,
> + 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
> + 1, 7, TLV_DB_SCALE_ITEM(3500, 300, 0));
> +static DECLARE_TLV_DB_SCALE(sun4i_codec_adc_gain_scale, -450, 150, 0);
> +static DECLARE_TLV_DB_RANGE(sun7i_codec_micin_preamp_gain_scale,
> + 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
> + 1, 7, TLV_DB_SCALE_ITEM(2400, 300, 0)
> +);
> +
> +static const char * const sun4i_codec_capture_source[] = {
> + "Line",
> + "FM",
> + "Mic1",
> + "Mic2",
> + "Mic1,Mic2",
> + "Mic1+Mic2",
> + "Output Mixer",

Given there's only one mixer in the system, you can drop the "Output".

> + "Line,Mic1",
> +};
> +static SOC_ENUM_SINGLE_DECL(sun4i_codec_enum_capture_source,
> + SUN4I_CODEC_ADC_ACTL,
> + SUN4I_CODEC_ADC_ACTL_ADCIS,
> + sun4i_codec_capture_source);
> +
> +static const struct snd_kcontrol_new sun4i_codec_capture_source_controls =
> + SOC_DAPM_ENUM("Capture Source", sun4i_codec_enum_capture_source);
> +
> +static const char * const sun4i_codec_difflinein_capture_source[] = {
> + "Non-Differential",
> + "Differential",

How about "Stereo"? And possibly "Mono Differential"? or just "Mono".
A differential input can be used single-ended by grounding one side.

> +};
> +static SOC_ENUM_SINGLE_DECL(sun4i_codec_enum_difflinein_capture_source,
> + SUN4I_CODEC_ADC_ACTL,
> + SUN4I_CODEC_ADC_ACTL_ADCIS,
> + sun4i_codec_difflinein_capture_source);
> +
> +static const struct snd_kcontrol_new sun4i_codec_difflinein_capture_source_controls =
> + SOC_DAPM_ENUM("Differential Line Capture Switch",
> + sun4i_codec_enum_difflinein_capture_source);
>
> #define SUN4I_COMMON_CODEC_CONTROLS \
> - SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,\
> - SUN4I_CODEC_DAC_ACTL_PA_VOL, 0x3F, 0,\
> - sun4i_codec_pa_volume_scale)
> + SOC_SINGLE_TLV("Headphone Playback Volume", SUN4I_CODEC_DAC_ACTL,\
> + SUN4I_CODEC_DAC_ACTL_PA_VOL, 0x3F, 0, \
> + sun4i_codec_pa_volume_scale), \
> + /* Line, FM, Mic1, Mic2 */ \
> + SOC_SINGLE_TLV("Line Playback Volume", \
> + SUN4I_CODEC_DAC_ACTL, \
> + SUN4I_CODEC_DAC_ACTL_LNG, \
> + 1, \
> + 0, \
> + sun4i_codec_linein_loopback_gain_scale), \
> + SOC_SINGLE_TLV("FM Playback Volume", \
> + SUN4I_CODEC_DAC_ACTL, \
> + SUN4I_CODEC_DAC_ACTL_FMG, \
> + 3, \
> + 0, \
> + sun4i_codec_fmin_loopback_gain_scale), \
> + SOC_SINGLE_TLV("Mic Playback Volume", \
> + SUN4I_CODEC_DAC_ACTL, \
> + SUN4I_CODEC_DAC_ACTL_MICG, \
> + 7, \
> + 0, \
> + sun4i_codec_micin_loopback_gain_scale), \
> + /* ADC */ \
> + SOC_SINGLE_TLV("Capture Volume", \
> + SUN4I_CODEC_ADC_ACTL, \
> + SUN4I_CODEC_ADC_ACTL_ADCG, \
> + 4, \
> + 0, \
> + sun4i_codec_adc_gain_scale), \
> + SOC_SINGLE_TLV("Line Capture Volume", \
> + SUN4I_CODEC_ADC_ACTL, \
> + SUN4I_CODEC_ADC_ACTL_LNPREG, \
> + 7, \
> + 0, \
> + sun4i_codec_linein_preamp_gain_scale)

Nope. This is a pre-gain or boost. It affects both playback and
capture. "Line Boost Volume" would be better.

>
> static const struct snd_kcontrol_new sun4i_codec_controls[] = {
> SUN4I_COMMON_CODEC_CONTROLS,
> + SOC_SINGLE_TLV("Mic1 Capture Volume",
> + SUN4I_CODEC_ADC_ACTL,
> + SUN4I_CODEC_ADC_ACTL_PREG1,
> + 3,
> + 0,
> + sun4i_codec_micin_preamp_gain_scale),
> + SOC_SINGLE_TLV("Mic2 Capture Volume",
> + SUN4I_CODEC_ADC_ACTL,
> + SUN4I_CODEC_ADC_ACTL_PREG2,
> + 3,
> + 0,
> + sun4i_codec_micin_preamp_gain_scale),
> };
>
> static const struct snd_kcontrol_new sun7i_codec_controls[] = {
> SUN4I_COMMON_CODEC_CONTROLS,
> + SOC_SINGLE_TLV("Mic1 Capture Volume",
> + SUN7I_CODEC_AC_MIC_PHONE_CAL,
> + SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG1,
> + 7,
> + 0,
> + sun7i_codec_micin_preamp_gain_scale),
> + SOC_SINGLE_TLV("Mic2 Capture Volume",
> + SUN7I_CODEC_AC_MIC_PHONE_CAL,
> + SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG2,
> + 7,
> + 0,
> + sun7i_codec_micin_preamp_gain_scale),

Same for the Mic pre-amp gain controls.

> };
>
> static const struct snd_kcontrol_new sun4i_codec_left_mixer_controls[] = {
> SOC_DAPM_SINGLE("Left DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
> SUN4I_CODEC_DAC_ACTL_LDACLMIXS, 1, 0),
> + SOC_DAPM_SINGLE("Left Line Playback Switch", SUN4I_CODEC_DAC_ACTL,
> + SUN4I_CODEC_DAC_ACTL_LLNS, 1, 0),
> + SOC_DAPM_SINGLE("Left FM Playback Switch", SUN4I_CODEC_DAC_ACTL,
> + SUN4I_CODEC_DAC_ACTL_LFMS, 1, 0),
> + SOC_DAPM_SINGLE("Mic1 Playback Switch", SUN4I_CODEC_DAC_ACTL,
> + SUN4I_CODEC_DAC_ACTL_MIC1LS, 1, 0),
> + SOC_DAPM_SINGLE("Mic2 Playback Switch", SUN4I_CODEC_DAC_ACTL,
> + SUN4I_CODEC_DAC_ACTL_MIC2LS, 1, 0),
> };
>
> static const struct snd_kcontrol_new sun4i_codec_right_mixer_controls[] = {
> @@ -533,6 +670,14 @@ static const struct snd_kcontrol_new sun4i_codec_right_mixer_controls[] = {
> SUN4I_CODEC_DAC_ACTL_RDACRMIXS, 1, 0),
> SOC_DAPM_SINGLE("Left DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
> SUN4I_CODEC_DAC_ACTL_LDACRMIXS, 1, 0),
> + SOC_DAPM_SINGLE("Right Line Playback Switch", SUN4I_CODEC_DAC_ACTL,
> + SUN4I_CODEC_DAC_ACTL_RLNS, 1, 0),
> + SOC_DAPM_SINGLE("Right FM Playback Switch", SUN4I_CODEC_DAC_ACTL,
> + SUN4I_CODEC_DAC_ACTL_RFMS, 1, 0),
> + SOC_DAPM_SINGLE("Mic1 Playback Switch", SUN4I_CODEC_DAC_ACTL,
> + SUN4I_CODEC_DAC_ACTL_MIC1RS, 1, 0),
> + SOC_DAPM_SINGLE("Mic2 Playback Switch", SUN4I_CODEC_DAC_ACTL,
> + SUN4I_CODEC_DAC_ACTL_MIC2RS, 1, 0),

I have a few patches that introduce SOC_DAPM_DOUBLE, so you can share a
control between left/right channels. IMHO it makes the userspace mixer
less confusing.

> };
>
> static const struct snd_kcontrol_new sun4i_codec_pa_mixer_controls[] = {
> @@ -565,6 +710,16 @@ static const struct snd_soc_dapm_widget sun4i_codec_codec_dapm_widgets[] = {
> SND_SOC_DAPM_DAC("Right DAC", "Codec Playback", SUN4I_CODEC_DAC_ACTL,
> SUN4I_CODEC_DAC_ACTL_DACAENR, 0),
>
> + /* MUX */
> + SND_SOC_DAPM_MUX("Left Capture Select", SND_SOC_NOPM, 0, 0,
> + &sun4i_codec_capture_source_controls),
> + SND_SOC_DAPM_MUX("Right Capture Select", SND_SOC_NOPM, 0, 0,
> + &sun4i_codec_capture_source_controls),
> + SND_SOC_DAPM_MUX("Differential Line Capture Switch", SND_SOC_NOPM,
> + 0,
> + 0,
> + &sun4i_codec_difflinein_capture_source_controls),

The proper function suffix is "Route", not "Select".

> +
> /* Mixers */
> SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
> sun4i_codec_left_mixer_controls,
> @@ -584,6 +739,8 @@ static const struct snd_soc_dapm_widget sun4i_codec_codec_dapm_widgets[] = {
> /* Mic Pre-Amplifiers */
> SND_SOC_DAPM_PGA("MIC1 Pre-Amplifier", SUN4I_CODEC_ADC_ACTL,
> SUN4I_CODEC_ADC_ACTL_PREG1EN, 0, NULL, 0),
> + SND_SOC_DAPM_PGA("MIC2 Pre-Amplifier", SUN4I_CODEC_ADC_ACTL,
> + SUN4I_CODEC_ADC_ACTL_PREG2EN, 0, NULL, 0),
>
> /* Power Amplifier */
> SND_SOC_DAPM_MIXER("Power Amplifier", SUN4I_CODEC_ADC_ACTL,
> @@ -593,8 +750,15 @@ static const struct snd_soc_dapm_widget sun4i_codec_codec_dapm_widgets[] = {
> SND_SOC_DAPM_SWITCH("Power Amplifier Mute", SND_SOC_NOPM, 0, 0,
> &sun4i_codec_pa_mute),
>
> + /* Inputs */
> SND_SOC_DAPM_INPUT("Mic1"),
> + SND_SOC_DAPM_INPUT("Mic2"),

How about SND_SOC_DAPM_MIC? And what about microphone bias?

> + SND_SOC_DAPM_INPUT("Line Right"),
> + SND_SOC_DAPM_INPUT("Line Left"),
> + SND_SOC_DAPM_INPUT("FM Right"),
> + SND_SOC_DAPM_INPUT("FM Left"),

Why the left/right channels? You aren't doing anything special for
them. You could just have one Line and one FM, and have routes to
left/right mixers.

>
> + /* Outputs */
> SND_SOC_DAPM_OUTPUT("HP Right"),
> SND_SOC_DAPM_OUTPUT("HP Left"),
> };
> @@ -608,14 +772,22 @@ static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
> { "Right ADC", NULL, "ADC" },
> { "Right DAC", NULL, "DAC" },
>
> + /* Left Mixer Routes */
> + { "Left Mixer", NULL, "Mixer Enable" },
> + { "Left Mixer", "Left DAC Playback Switch", "Left DAC" },
> + { "Left Mixer", "Mic1 Playback Switch", "MIC1 Pre-Amplifier" },
> + { "Left Mixer", "Mic2 Playback Switch", "MIC2 Pre-Amplifier" },
> + { "Left Mixer", "Left Line Playback Switch", "Line Left" },
> + { "Left Mixer", "Left FM Playback Switch", "FM Left" },
> +
> /* Right Mixer Routes */
> { "Right Mixer", NULL, "Mixer Enable" },
> { "Right Mixer", "Left DAC Playback Switch", "Left DAC" },
> { "Right Mixer", "Right DAC Playback Switch", "Right DAC" },
> -
> - /* Left Mixer Routes */
> - { "Left Mixer", NULL, "Mixer Enable" },
> - { "Left Mixer", "Left DAC Playback Switch", "Left DAC" },
> + { "Right Mixer", "Mic1 Playback Switch", "MIC1 Pre-Amplifier" },
> + { "Right Mixer", "Mic2 Playback Switch", "MIC2 Pre-Amplifier" },
> + { "Right Mixer", "Right Line Playback Switch", "Line Right" },
> + { "Right Mixer", "Right FM Playback Switch", "FM Right" },
>
> /* Power Amplifier Routes */
> { "Power Amplifier", "Mixer Playback Switch", "Left Mixer" },
> @@ -633,26 +805,70 @@ static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
> { "Right ADC", NULL, "MIC1 Pre-Amplifier" },
> { "MIC1 Pre-Amplifier", NULL, "Mic1"},
> { "Mic1", NULL, "VMIC" },
> + /* see also Left Mixer Routes, Right Mixer Routes */
> +
> + /* Mic2 Routes */
> + { "Left ADC", NULL, "MIC2 Pre-Amplifier" },
> + { "Right ADC", NULL, "MIC2 Pre-Amplifier" },
> + { "MIC2 Pre-Amplifier", NULL, "Mic2"},
> + { "Mic2", NULL, "VMIC" },
> + /* see also Left Mixer Routes, Right Mixer Routes */
> +
> + /* Line, FM Routes */
> + /* see also Left Mixer Routes, Right Mixer Routes */
> +
> + /* LNRDF Routes */
> + { "Differential Line Capture Switch", "Differential", "Line Left" },
> + { "Differential Line Capture Switch", "Differential", "Line Right" },
> + /*{ "Differential Line Capture Switch", "Non-Differential", "Line X" }, implicit */
> +
> + /* Left ADC Input Routes */
> + { "Left Capture Select", "Line", "Line Left" },
> + { "Left Capture Select", "Line", "Differential Line Capture Switch" },
> + { "Left Capture Select", "FM", "FM Left" },
> + { "Left Capture Select", "Mic1", "MIC1 Pre-Amplifier" },
> + { "Left Capture Select", "Mic2", "MIC2 Pre-Amplifier" },
> + { "Left Capture Select", "Mic1,Mic2", "MIC1 Pre-Amplifier" },
> + { "Left Capture Select", "Mic1+Mic2", "MIC1 Pre-Amplifier" },
> + { "Left Capture Select", "Mic1+Mic2", "MIC2 Pre-Amplifier" },
> + { "Left Capture Select", "Output Mixer", "Left Mixer" },
> + { "Left Capture Select", "Line,Mic1", "Line Left" },
> + { "Left Capture Select", "Line,Mic1", "Differential Line Capture Switch" },
> + { "Left ADC", NULL, "Left Capture Select" },
> +
> + /* Right ADC Input Routes */
> + { "Right Capture Select", "Line", "Line Right" },
> + { "Right Capture Select", "Line", "Differential Line Capture Switch" },
> + { "Right Capture Select", "FM", "FM Right" },
> + { "Right Capture Select", "Mic1", "MIC1 Pre-Amplifier" },
> + { "Right Capture Select", "Mic2", "MIC2 Pre-Amplifier" },
> + { "Right Capture Select", "Mic1,Mic2", "MIC2 Pre-Amplifier" },
> + { "Right Capture Select", "Mic1+Mic2", "MIC2 Pre-Amplifier" },
> + { "Right Capture Select", "Mic1+Mic2", "MIC1 Pre-Amplifier" },
> + { "Right Capture Select", "Output Mixer", "Right Mixer" },
> + { "Right Capture Select", "Line,Mic1", "MIC1 Pre-Amplifier" },
> + { "Right ADC", NULL, "Right Capture Select" },
> };
>
> static struct snd_soc_codec_driver sun4i_codec_codec = {
> .component_driver = {
> - .controls = sun4i_codec_controls,
> - .num_controls = ARRAY_SIZE(sun4i_codec_controls),
> - .dapm_widgets = sun4i_codec_codec_dapm_widgets,
> - .num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
> - .dapm_routes = sun4i_codec_codec_dapm_routes,
> - .num_dapm_routes = ARRAY_SIZE(sun4i_codec_codec_dapm_routes),
> + .controls = sun4i_codec_controls,
> + .num_controls = ARRAY_SIZE(sun4i_codec_controls),
> + .dapm_widgets = sun4i_codec_codec_dapm_widgets,
> + .num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
> + .dapm_routes = sun4i_codec_codec_dapm_routes,
> + .num_dapm_routes = ARRAY_SIZE(sun4i_codec_codec_dapm_routes),
> },
> };
> +
> static struct snd_soc_codec_driver sun7i_codec_codec = {
> .component_driver = {
> - .controls = sun7i_codec_controls,
> - .num_controls = ARRAY_SIZE(sun7i_codec_controls),
> - .dapm_widgets = sun4i_codec_codec_dapm_widgets,
> - .num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
> - .dapm_routes = sun4i_codec_codec_dapm_routes,
> - .num_dapm_routes = ARRAY_SIZE(sun4i_codec_codec_dapm_routes),
> + .controls = sun7i_codec_controls,
> + .num_controls = ARRAY_SIZE(sun7i_codec_controls),
> + .dapm_widgets = sun4i_codec_codec_dapm_widgets,
> + .num_dapm_widgets = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
> + .dapm_routes = sun4i_codec_codec_dapm_routes,
> + .num_dapm_routes = ARRAY_SIZE(sun4i_codec_codec_dapm_routes),

You should put these changes in the first patch.

Note that I haven't checked the register offsets.

Regards
ChenYu

> },
> };
>

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In reply to: Danny Milosavljevic: "[PATCH v9 2/2] Add mixer controls: Line-In, FM-In, Mic 2, Capture Source, Differential Line-In."
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