1 files changed, 41 insertions, 0 deletions
diff --git a/sound_card_init/amp/src/max98373d/settings.rs b/sound_card_init/amp/src/max98373d/settings.rs
new file mode 100644
index 00000000..1d6e64e5
--- /dev/null
+++ b/sound_card_init/amp/src/max98373d/settings.rs
@@ -0,0 +1,41 @@
+// Copyright 2020 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+use std::string::String;
+
+use dsm::{self, Error, Result};
+use serde::Deserialize;
+/// `DeviceSettings` includes the settings of max98373. It currently includes:
+/// * the settings of amplifier calibration.
+/// * the path of dsm_param.
+#[derive(Debug, Default, PartialEq, Deserialize, Clone)]
+pub struct DeviceSettings {
+    pub amp_calibrations: AmpCalibSettings,
+}
+
+/// `AmpCalibSettings` includes the settings needed for amplifier calibration.
+#[derive(Debug, Default, PartialEq, Deserialize, Clone)]
+pub struct AmpCalibSettings {
+    pub dsm_param_read_ctrl: String,
+    pub dsm_param_write_ctrl: String,
+    pub temp_ctrl: Vec<String>,
+    // Path of the dsm_param.bin file.
+    pub dsm_param: String,
+    pub boot_time_calibration_enabled: bool,
+}
+
+impl AmpCalibSettings {
+    /// Returns the number of channels.
+    pub fn num_channels(&self) -> usize {
+        self.temp_ctrl.len()
+    }
+}
+
+impl DeviceSettings {
+    /// Creates a `DeviceSettings` from a yaml str.
+    pub fn from_yaml_str(conf: &str) -> Result<DeviceSettings> {
+        let settings: DeviceSettings = serde_yaml::from_str(conf)
+            .map_err(|e| Error::DeserializationFailed("DeviceSettings".to_owned(), e))?;
+        Ok(settings)
+    }
+}