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// 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 serde::Deserialize;
use crate::error::{Error, Result};
/// `DeviceSettings` includes the settings of max98390. 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: Vec<AmpCalibSettings>,
pub dsm_param: String,
}
/// `AmpCalibSettings` includes the settings needed for amplifier calibration.
#[derive(Debug, Default, PartialEq, Deserialize, Clone)]
pub struct AmpCalibSettings {
/// `AmpSettings`.
pub amp: AmpSettings,
/// Vpd file of Rdc.
pub rdc_vpd: String,
/// Vpd file of ambient temperature.
pub temp_vpd: String,
/// File to store the boot time calibration values.
pub calib_file: String,
}
/// `AmpSettings` represents mixer control names and amp params needed for amplifier calibration.
#[derive(Debug, Default, PartialEq, Deserialize, Clone)]
pub struct AmpSettings {
// Mixer control to get/set rdc value.
pub rdc_ctrl: String,
// Mixer control to get/set ambient temperature value.
pub temp_ctrl: String,
// Mixer control to trigger calibration.
pub calib_ctrl: String,
// Mixer control to adjust volume.
pub volume_ctrl: String,
// The threshold to put volume into normal.
pub volume_high_limit: i32,
// The threshold to put volume into protected mode.
pub volume_low_limit: i32,
// The upper limit of a valid temperature value.
pub temp_upper_limit: i32,
// The lower limit of a valid temperature value.
pub temp_lower_limit: i32,
}
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)
}
}
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