ASoC: sun8i-codec-analog: prepare a mixer control/widget/route set for V3s

Allwinner V3s has an analog codec without MIC2 and Line In, which will
need a special set of mixer controls/widgets/routes, otherwise meaningless
controls will be exported to userspace and confuse the user.

Add the special set, and use it when the SoC has no MIC2 and Line In.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sunxi/sun8i-codec-analog.c b/sound/soc/sunxi/sun8i-codec-analog.c
index edcc3eb7cd9af5d2e2b93e1bc91d13f18c77a6d3..29c4460681515a29e3f466891c3b83773944fcc8 100644 (file)
--- a/sound/soc/sunxi/sun8i-codec-analog.c
+++ b/sound/soc/sunxi/sun8i-codec-analog.c
@@ -219,6 +219,22 @@ static const struct snd_kcontrol_new sun8i_codec_mixer_controls[] = {
                          SUN8I_ADDA_LOMIXSC_MIC2, 1, 0),
 };
 
+/* mixer controls */
+static const struct snd_kcontrol_new sun8i_v3s_codec_mixer_controls[] = {
+       SOC_DAPM_DOUBLE_R("DAC Playback Switch",
+                         SUN8I_ADDA_LOMIXSC,
+                         SUN8I_ADDA_ROMIXSC,
+                         SUN8I_ADDA_LOMIXSC_DACL, 1, 0),
+       SOC_DAPM_DOUBLE_R("DAC Reversed Playback Switch",
+                         SUN8I_ADDA_LOMIXSC,
+                         SUN8I_ADDA_ROMIXSC,
+                         SUN8I_ADDA_LOMIXSC_DACR, 1, 0),
+       SOC_DAPM_DOUBLE_R("Mic1 Playback Switch",
+                         SUN8I_ADDA_LOMIXSC,
+                         SUN8I_ADDA_ROMIXSC,
+                         SUN8I_ADDA_LOMIXSC_MIC1, 1, 0),
+};
+
 /* ADC mixer controls */
 static const struct snd_kcontrol_new sun8i_codec_adc_mixer_controls[] = {
        SOC_DAPM_DOUBLE_R("Mixer Capture Switch",
@@ -243,6 +259,22 @@ static const struct snd_kcontrol_new sun8i_codec_adc_mixer_controls[] = {
                          SUN8I_ADDA_LADCMIXSC_MIC2, 1, 0),
 };
 
+/* ADC mixer controls */
+static const struct snd_kcontrol_new sun8i_v3s_codec_adc_mixer_controls[] = {
+       SOC_DAPM_DOUBLE_R("Mixer Capture Switch",
+                         SUN8I_ADDA_LADCMIXSC,
+                         SUN8I_ADDA_RADCMIXSC,
+                         SUN8I_ADDA_LADCMIXSC_OMIXRL, 1, 0),
+       SOC_DAPM_DOUBLE_R("Mixer Reversed Capture Switch",
+                         SUN8I_ADDA_LADCMIXSC,
+                         SUN8I_ADDA_RADCMIXSC,
+                         SUN8I_ADDA_LADCMIXSC_OMIXRR, 1, 0),
+       SOC_DAPM_DOUBLE_R("Mic1 Capture Switch",
+                         SUN8I_ADDA_LADCMIXSC,
+                         SUN8I_ADDA_RADCMIXSC,
+                         SUN8I_ADDA_LADCMIXSC_MIC1, 1, 0),
+};
+
 /* volume / mute controls */
 static const DECLARE_TLV_DB_SCALE(sun8i_codec_out_mixer_pregain_scale,
                                  -450, 150, 0);
@@ -292,8 +324,9 @@ static const struct snd_soc_dapm_widget sun8i_codec_common_widgets[] = {
        /* Mic input path */
        SND_SOC_DAPM_PGA("Mic1 Amplifier", SUN8I_ADDA_MIC1G_MICBIAS_CTRL,
                         SUN8I_ADDA_MIC1G_MICBIAS_CTRL_MIC1AMPEN, 0, NULL, 0),
+};
 
-       /* Mixers */
+static const struct snd_soc_dapm_widget sun8i_codec_mixer_widgets[] = {
        SND_SOC_DAPM_MIXER("Left Mixer", SUN8I_ADDA_DAC_PA_SRC,
                           SUN8I_ADDA_DAC_PA_SRC_LMIXEN, 0,
                           sun8i_codec_mixer_controls,
@@ -312,10 +345,31 @@ static const struct snd_soc_dapm_widget sun8i_codec_common_widgets[] = {
                           ARRAY_SIZE(sun8i_codec_adc_mixer_controls)),
 };
 
+static const struct snd_soc_dapm_widget sun8i_v3s_codec_mixer_widgets[] = {
+       SND_SOC_DAPM_MIXER("Left Mixer", SUN8I_ADDA_DAC_PA_SRC,
+                          SUN8I_ADDA_DAC_PA_SRC_LMIXEN, 0,
+                          sun8i_v3s_codec_mixer_controls,
+                          ARRAY_SIZE(sun8i_v3s_codec_mixer_controls)),
+       SND_SOC_DAPM_MIXER("Right Mixer", SUN8I_ADDA_DAC_PA_SRC,
+                          SUN8I_ADDA_DAC_PA_SRC_RMIXEN, 0,
+                          sun8i_v3s_codec_mixer_controls,
+                          ARRAY_SIZE(sun8i_v3s_codec_mixer_controls)),
+       SND_SOC_DAPM_MIXER("Left ADC Mixer", SUN8I_ADDA_ADC_AP_EN,
+                          SUN8I_ADDA_ADC_AP_EN_ADCLEN, 0,
+                          sun8i_v3s_codec_adc_mixer_controls,
+                          ARRAY_SIZE(sun8i_v3s_codec_adc_mixer_controls)),
+       SND_SOC_DAPM_MIXER("Right ADC Mixer", SUN8I_ADDA_ADC_AP_EN,
+                          SUN8I_ADDA_ADC_AP_EN_ADCREN, 0,
+                          sun8i_v3s_codec_adc_mixer_controls,
+                          ARRAY_SIZE(sun8i_v3s_codec_adc_mixer_controls)),
+};
+
 static const struct snd_soc_dapm_route sun8i_codec_common_routes[] = {
        /* Microphone Routes */
        { "Mic1 Amplifier", NULL, "MIC1"},
+};
 
+static const struct snd_soc_dapm_route sun8i_codec_mixer_routes[] = {
        /* Left Mixer Routes */
        { "Left Mixer", "DAC Playback Switch", "Left DAC" },
        { "Left Mixer", "DAC Reversed Playback Switch", "Right DAC" },
@@ -714,6 +768,48 @@ static const struct sun8i_codec_analog_quirks sun8i_h3_quirks = {
        .has_mic2       = true,
 };
 
+static int sun8i_codec_analog_add_mixer(struct snd_soc_component *cmpnt,
+                                       const struct sun8i_codec_analog_quirks *quirks)
+{
+       struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(cmpnt);
+       struct device *dev = cmpnt->dev;
+       int ret;
+
+       if (!quirks->has_mic2 && !quirks->has_linein) {
+               /*
+                * Apply the special widget set which has uses a control
+                * without MIC2 and Line In, for SoCs without these.
+                * TODO: not all special cases are supported now, this case
+                * is present because it's the case of V3s.
+                */
+               ret = snd_soc_dapm_new_controls(dapm,
+                                               sun8i_v3s_codec_mixer_widgets,
+                                               ARRAY_SIZE(sun8i_v3s_codec_mixer_widgets));
+               if (ret) {
+                       dev_err(dev, "Failed to add V3s Mixer DAPM widgets: %d\n", ret);
+                       return ret;
+               }
+       } else {
+               /* Apply the generic mixer widget set. */
+               ret = snd_soc_dapm_new_controls(dapm,
+                                               sun8i_codec_mixer_widgets,
+                                               ARRAY_SIZE(sun8i_codec_mixer_widgets));
+               if (ret) {
+                       dev_err(dev, "Failed to add Mixer DAPM widgets: %d\n", ret);
+                       return ret;
+               }
+       }
+
+       ret = snd_soc_dapm_add_routes(dapm, sun8i_codec_mixer_routes,
+                                     ARRAY_SIZE(sun8i_codec_mixer_routes));
+       if (ret) {
+               dev_err(dev, "Failed to add Mixer DAPM routes: %d\n", ret);
+               return ret;
+       }
+
+       return 0;
+}
+
 static int sun8i_codec_analog_cmpnt_probe(struct snd_soc_component *cmpnt)
 {
        struct device *dev = cmpnt->dev;
@@ -728,6 +824,9 @@ static int sun8i_codec_analog_cmpnt_probe(struct snd_soc_component *cmpnt)
        quirks = of_device_get_match_data(dev);
 
        /* Add controls, widgets, and routes for individual features */
+       ret = sun8i_codec_analog_add_mixer(cmpnt, quirks);
+       if (ret)
+               return ret;
 
        if (quirks->has_headphone) {
                ret = sun8i_codec_add_headphone(cmpnt);