This allows controlling the loopback flag for each AIF. This is useful for developing/testing complicated audio routing scenarios (such as recording a phone call while using a BT headset for mic/earpiece) without needing to involve the devices on the other end of the DAI links.
Signed-off-by: Samuel Holland samuel@sholland.org --- sound/soc/sunxi/sun8i-codec.c | 48 +++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+)
diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c index fdb9bf346cc2..245145e36357 100644 --- a/sound/soc/sunxi/sun8i-codec.c +++ b/sound/soc/sunxi/sun8i-codec.c @@ -63,6 +63,7 @@ #define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_ENA 14 #define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0L_SRC 10 #define SUN8I_AIF1_DACDAT_CTRL_AIF1_DA0R_SRC 8 +#define SUN8I_AIF1_DACDAT_CTRL_AIF1_LOOP_ENA 0 #define SUN8I_AIF1_MXR_SRC 0x04c #define SUN8I_AIF1_MXR_SRC_AD0L_MXR_SRC_AIF1DA0L 15 #define SUN8I_AIF1_MXR_SRC_AD0L_MXR_SRC_AIF2DACL 14 @@ -82,6 +83,7 @@ #define SUN8I_AIF2_DACDAT_CTRL_AIF2_DACR_ENA 14 #define SUN8I_AIF2_DACDAT_CTRL_AIF2_DACL_SRC 10 #define SUN8I_AIF2_DACDAT_CTRL_AIF2_DACR_SRC 8 +#define SUN8I_AIF2_DACDAT_CTRL_AIF2_LOOP_ENA 0 #define SUN8I_AIF2_MXR_SRC 0x08c #define SUN8I_AIF2_MXR_SRC_ADCL_MXR_SRC_AIF1DA0L 15 #define SUN8I_AIF2_MXR_SRC_ADCL_MXR_SRC_AIF1DA1L 14 @@ -519,6 +521,21 @@ static struct snd_soc_dai_driver sun8i_codec_dais[] = { }, };
+static const struct snd_kcontrol_new sun8i_aif1_loopback_switch = + SOC_DAPM_SINGLE("AIF1 Loopback Switch", + SUN8I_AIF1_DACDAT_CTRL, + SUN8I_AIF1_DACDAT_CTRL_AIF1_LOOP_ENA, 1, 0); + +static const struct snd_kcontrol_new sun8i_aif2_loopback_switch = + SOC_DAPM_SINGLE("AIF2 Loopback Switch", + SUN8I_AIF2_DACDAT_CTRL, + SUN8I_AIF2_DACDAT_CTRL_AIF2_LOOP_ENA, 1, 0); + +static const struct snd_kcontrol_new sun8i_aif3_loopback_switch = + SOC_DAPM_SINGLE("Switch", + SUN8I_AIF3_DACDAT_CTRL, + SUN8I_AIF3_DACDAT_CTRL_AIF3_LOOP_ENA, 1, 0); + static const char *const sun8i_aif_stereo_mux_enum_names[] = { "Stereo", "Reverse Stereo", "Sum Mono", "Mix Mono" }; @@ -643,6 +660,20 @@ static const struct snd_kcontrol_new sun8i_dac_mixer_controls[] = { };
static const struct snd_soc_dapm_widget sun8i_codec_dapm_widgets[] = { + /* AIF Loopback Switches */ + SND_SOC_DAPM_SWITCH("AIF1 Slot 0 Left Loopback", SND_SOC_NOPM, 0, 0, + &sun8i_aif1_loopback_switch), + SND_SOC_DAPM_SWITCH("AIF1 Slot 0 Right Loopback", SND_SOC_NOPM, 0, 0, + &sun8i_aif1_loopback_switch), + + SND_SOC_DAPM_SWITCH("AIF2 Left Loopback", SND_SOC_NOPM, 0, 0, + &sun8i_aif2_loopback_switch), + SND_SOC_DAPM_SWITCH("AIF2 Right Loopback", SND_SOC_NOPM, 0, 0, + &sun8i_aif2_loopback_switch), + + SND_SOC_DAPM_SWITCH("AIF3 Loopback", SND_SOC_NOPM, 0, 0, + &sun8i_aif3_loopback_switch), + /* AIF "ADC" Outputs */ SND_SOC_DAPM_AIF_OUT("AIF1 AD0 Left", "AIF1 Capture", 0, SUN8I_AIF1_ADCDAT_CTRL, @@ -776,6 +807,15 @@ static const struct snd_soc_dapm_widget sun8i_codec_dapm_widgets[] = { };
static const struct snd_soc_dapm_route sun8i_codec_dapm_routes[] = { + /* AIF Loopback Routes */ + { "AIF1 Slot 0 Left Loopback", "AIF1 Loopback Switch", "AIF1 AD0 Left" }, + { "AIF1 Slot 0 Right Loopback", "AIF1 Loopback Switch", "AIF1 AD0 Right" }, + + { "AIF2 Left Loopback", "AIF2 Loopback Switch", "AIF2 ADC Left" }, + { "AIF2 Right Loopback", "AIF2 Loopback Switch", "AIF2 ADC Right" }, + + { "AIF3 Loopback", "Switch", "AIF3 ADC" }, + /* AIF "ADC" Output Routes */ { "AIF1 AD0 Left", NULL, "AIF1 AD0 Left Stereo Mux" }, { "AIF1 AD0 Right", NULL, "AIF1 AD0 Right Stereo Mux" }, @@ -882,12 +922,20 @@ static const struct snd_soc_dapm_route sun8i_codec_dapm_routes[] = { { "AIF2 DAC Right Stereo Mux", "Mix Mono", "AIF2 DAC Right" },
/* AIF "DAC" Input Routes */ + { "AIF1 DA0 Left", NULL, "AIF1 Slot 0 Left Loopback" }, + { "AIF1 DA0 Right", NULL, "AIF1 Slot 0 Right Loopback" }, + { "AIF1 DA0 Left", NULL, "AIF1CLK" }, { "AIF1 DA0 Right", NULL, "AIF1CLK" },
+ { "AIF2 DAC Left", NULL, "AIF2 Left Loopback" }, + { "AIF2 DAC Right", NULL, "AIF2 Right Loopback" }, + { "AIF2 DAC Left", NULL, "AIF2CLK" }, { "AIF2 DAC Right", NULL, "AIF2CLK" },
+ { "AIF3 DAC", NULL, "AIF3 Loopback" }, + /* Main DAC Output Routes */ { "DAC Left", NULL, "DAC Left Mixer" }, { "DAC Right", NULL, "DAC Right Mixer" },