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ASoC: hifiberry-studio: add AES CS Mode control (channel status format) #7527

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Merged
pelwell merged 1 commit into from
Jul 29, 2026
+9 −0
Merged

ASoC: hifiberry-studio: add AES CS Mode control (channel status format) #7527

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9 changes: 9 additions & 0 deletions sound/soc/bcm/hifiberry_studio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -106,6 +106,7 @@
#define GAIN_CH6 0x87
#define GAIN_CH7 0x88
#define MUTE_INPUTS 0x89
#define DIGI_CS_FORMAT 0x90 /* AES channel status format */
#define CLOCK_CONSUMER_MODE 0x00
#define CLOCK_PROVIDER_MODE 0x01

Expand Down Expand Up @@ -289,6 +290,7 @@ static bool hb_studio_readable_reg(struct device *dev, unsigned int reg)
case UUID:
case DAC_STATE:
case CARD_BUSY:
case DIGI_CS_FORMAT:
case CARD_RESET:
case CARD_CLOCK_MODE:
case CARD_CLK_ACT:
Expand Down Expand Up @@ -341,6 +343,8 @@ static const char * const adc_att_texts[] = {
"Clip att. off", "-3dB", "-4dB", "-5dB", "-6dB",
};
static const char * const dix_clk_texts[] = {"TX", "RX"};
static const char * const cs_mode_texts[] = {"Consumer", "Professional",
"Professional CRC"};

struct hb_studio_vol_control_single {
unsigned int reg;
Expand Down Expand Up @@ -617,6 +621,10 @@ static const struct hb_studio_enum_control hb_studio_dix_clk_enum_ctls[] = {
{ CARD_CLK_OVRWR, 0, 0x01, dix_clk_texts, ARRAY_SIZE(dix_clk_texts) },
};

static const struct hb_studio_enum_control hb_studio_cs_mode_enum_ctls[] = {
{ DIGI_CS_FORMAT, 0, 0x03, cs_mode_texts, ARRAY_SIZE(cs_mode_texts) },
};

static const struct snd_kcontrol_new hb_studio_gen_controls_single[] = {
ENUM_CTL_SINGLE("DAC Filter", hb_studio_play_enum_ctls[1]),
ENUM_CTL_SINGLE("Output Mute", hb_studio_play_enum_ctls[2]),
Expand All @@ -641,6 +649,7 @@ static const struct snd_kcontrol_new dix_controls_single[] = {
ENUM_CTL_SINGLE("Input Mute", hb_studio_rec_enum_ctls[1]),
ENUM_CTL_SINGLE_RO_GET("Current Sample Rate", hb_studio_samplerate_ctl,
hb_studio_samplerate_get),
ENUM_CTL_SINGLE("AES CS Mode", hb_studio_cs_mode_enum_ctls[0]),
};

static int snd_rpi_hifiberry_studio_hw_params(
Expand Down
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