From 799a0a1190812d5ccb3c0590bf3eb3999233a2b6 Mon Sep 17 00:00:00 2001
From: Michal Bukowski <michal.bukowski@intel.com>
Date: Mon, 20 Jan 2025 18:18:47 +0100
Subject: [PATCH] mic_privacy: implement new IPC -
 SNDW_MIC_PRIVACY_HW_MANAGED_STATE_CHANGE

SW sends this IPC when microphone privacy state is changed for
HW_MANAGED mode and SNDW interface.

Signed-off-by: Michal Bukowski <michal.bukowski@intel.com>
---
 src/audio/base_fw_intel.c  | 22 ++++++++++++++++++++++
 src/include/ipc4/base_fw.h |  3 +++
 2 files changed, 25 insertions(+)

diff --git a/src/audio/base_fw_intel.c b/src/audio/base_fw_intel.c
index 71c573481a9a..85db72115764 100644
--- a/src/audio/base_fw_intel.c
+++ b/src/audio/base_fw_intel.c
@@ -363,6 +363,26 @@ static int basefw_set_mic_priv_policy(bool first_block,
 #endif
 }
 
+static int basefw_mic_priv_state_changed(bool first_block,
+					 bool last_block,
+					 uint32_t data_offset_or_size,
+					 const char *data)
+{
+#if CONFIG_INTEL_ADSP_MIC_PRIVACY
+	tr_info(&basefw_comp_tr, "state changed to %d", *data);
+
+	uint32_t mic_disable_status = (uint32_t)(*data);
+	struct mic_privacy_settings settings;
+
+	mic_privacy_fill_settings(&settings, mic_disable_status);
+	mic_privacy_propagate_settings(&settings);
+
+	return 0;
+#else
+	return IPC4_UNAVAILABLE;
+#endif
+}
+
 int basefw_vendor_set_large_config(struct comp_dev *dev,
 				   uint32_t param_id,
 				   bool first_block,
@@ -375,6 +395,8 @@ int basefw_vendor_set_large_config(struct comp_dev *dev,
 		return basefw_set_fw_config(first_block, last_block, data_offset, data);
 	case IPC4_SET_MIC_PRIVACY_FW_MANAGED_POLICY_MASK:
 		return basefw_set_mic_priv_policy(first_block, last_block, data_offset, data);
+	case IPC4_MIC_PRIVACY_HW_MANAGED_STATE_CHANGE:
+		return basefw_mic_priv_state_changed(first_block, last_block, data_offset, data);
 	default:
 		break;
 	}
diff --git a/src/include/ipc4/base_fw.h b/src/include/ipc4/base_fw.h
index f1e64fe0e353..25601b1209f0 100644
--- a/src/include/ipc4/base_fw.h
+++ b/src/include/ipc4/base_fw.h
@@ -289,6 +289,9 @@ enum ipc4_basefw_params {
 	/* Use LARGE_CONFIG_SET to change SDW ownership */
 	IPC4_SDW_OWNERSHIP = 31,
 
+	/* This command is used by SW to notify FW for changing state of Mic Privacy */
+	IPC4_MIC_PRIVACY_HW_MANAGED_STATE_CHANGE = 35,
+
 	/* Set policy mask for mic privacy in FW managed mode */
 	IPC4_SET_MIC_PRIVACY_FW_MANAGED_POLICY_MASK = 36,
 };