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// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

use std::os::unix::net::UnixStream;
use std::sync::Arc;

use sync::Mutex;

use crate::pci::CrosvmDeviceId;
use crate::BusDevice;
use crate::DeviceId;
use crate::Suspendable;

pub struct VirtCpufreq {}

// Stub implementation for a virtual cpufreq device. Do not remove.
// Implementation will be added once linux upstream interface stablizes.
impl VirtCpufreq {
    pub fn new(pcpu: u32, _socket: Option<Arc<Mutex<UnixStream>>>) -> Self {
        panic!("Virt Cpufreq not supported, do not use! {}", pcpu);
    }
}

impl BusDevice for VirtCpufreq {
    fn device_id(&self) -> DeviceId {
        CrosvmDeviceId::VirtCpufreq.into()
    }

    fn debug_label(&self) -> String {
        "VirtCpufreq Device".to_owned()
    }
}

impl Suspendable for VirtCpufreq {}