ASoC: sof: ipc4-control: Force method for global capture hw mute indicator

This is inteded for driving the mute indicator following dsp power
state. If dsp is powerred down the capture muted state should be
indicated.

Signed-off-by: Jyri Sarha <[email protected]>

Author: Jyri Sarha

sound/soc/sof/ipc4-control.c

@@ -854,7 +854,11 @@ sof_ipc4_set_up_volume_table(struct snd_sof_control *scontrol, int tlv[SOF_TLV_I
 
 struct sof_ipc4_kcontrol_global_priv {
 	struct snd_card *snd_card;
-	struct snd_kcontrol *capture_hw_mute;
+	struct sof_ipc4_kcontrol_global_capture_hw_mute {
+		struct snd_kcontrol *kctl;
+		bool force_muted;	/* If true mute state indicator forced to muted */
+		bool last_reported;	/* The latest mute state received from FW */
+	} capture_hw_mute;
 };
 
 static int sof_ipc4_capture_hw_mute_get(struct snd_kcontrol *kcontrol,
@@ -920,10 +924,13 @@ static int sof_ipc4_create_non_topology_controls(struct snd_sof_dev *sdev,
 		kctl->private_value = 0;
 
 		ret = snd_ctl_add(snd_card, kctl);
-		if (ret < 0)
+		if (ret >= 0) {
+			priv->capture_hw_mute.kctl = kctl;
+			priv->capture_hw_mute.force_muted = false;
+			priv->capture_hw_mute.last_reported = false;
+		} else {
 			dev_err(dev, "%s: snd_ctl_add(): failed", __func__);
-		else
-			priv->capture_hw_mute = kctl;
+		}
 	}
 
 	ipc4_data->global_kcontrol_priv = priv;
@@ -939,13 +946,19 @@ static void snd_ipc4_global_capture_hw_mute_report(struct snd_sof_dev *sdev,
 	struct device *dev = sdev->dev;
 	struct snd_kcontrol *kctl;
 
-	if (!priv || !priv->capture_hw_mute)
+	if (!priv || !priv->capture_hw_mute.kctl)
 		return;
 
-	kctl = priv->capture_hw_mute;
+	kctl = priv->capture_hw_mute.kctl;
 
-	dev_dbg(dev, "%s: reporting %u, old %lu", __func__,
-		status, kctl->private_value);
+	dev_dbg(dev, "%s: new %u, old %lu, last %u force %u", __func__,
+		status, kctl->private_value, priv->capture_hw_mute.last_reported,
+		priv->capture_hw_mute.force_muted);
+
+	priv->capture_hw_mute.last_reported = status;
+
+	if (priv->capture_hw_mute.force_muted)
+		status = false;
 
 	if (kctl->private_value == status)
 		return;
@@ -954,6 +967,19 @@ static void snd_ipc4_global_capture_hw_mute_report(struct snd_sof_dev *sdev,
 	snd_ctl_notify(priv->snd_card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
 }
 
+void snd_ipc4_global_capture_hw_mute_force(struct snd_sof_dev *sdev, bool force)
+{
+	struct sof_ipc4_fw_data *ipc4_data = sdev->private;
+	struct sof_ipc4_kcontrol_global_priv *priv = ipc4_data->global_kcontrol_priv;
+
+	if (!priv)
+		return;
+
+	priv->capture_hw_mute.force_muted = force;
+
+	snd_ipc4_global_capture_hw_mute_report(sdev, priv->capture_hw_mute.last_reported);
+}
+
 static void snd_ipc4_handle_global_event(struct snd_sof_dev *sdev,
 					 struct sof_ipc4_control_msg_payload *msg_data)
 {

sound/soc/sof/ipc4-priv.h

@@ -119,4 +119,6 @@ void sof_ipc4_update_cpc_from_manifest(struct snd_sof_dev *sdev,
 size_t sof_ipc4_find_debug_slot_offset_by_type(struct snd_sof_dev *sdev,
 					       u32 slot_type);
 
+void snd_ipc4_global_capture_hw_mute_force(struct snd_sof_dev *sdev, bool force);
+
 #endif