jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#pragma once
8
9#include <AK/IntrusiveList.h>
10#include <AK/OwnPtr.h>
11#include <Kernel/Bus/PCI/Access.h>
12#include <Kernel/Bus/PCI/Device.h>
13#include <Kernel/Devices/Audio/Channel.h>
14#include <Kernel/Devices/Device.h>
15#include <Kernel/Library/LockRefPtr.h>
16#include <Kernel/Library/LockWeakable.h>
17#include <Kernel/Locking/Mutex.h>
18#include <Kernel/Memory/PhysicalPage.h>
19#include <Kernel/PhysicalAddress.h>
20#include <Kernel/Random.h>
21
22namespace Kernel {
23
24class AudioManagement;
25class AudioController
26 : public AtomicRefCounted<AudioController>
27 , public LockWeakable<AudioController> {
28 friend class AudioManagement;
29
30public:
31 virtual ~AudioController() = default;
32
33 virtual LockRefPtr<AudioChannel> audio_channel(u32 index) const = 0;
34 virtual ErrorOr<size_t> write(size_t channel_index, UserOrKernelBuffer const& data, size_t length) = 0;
35
36 virtual void detect_hardware_audio_channels(Badge<AudioManagement>) = 0;
37
38 virtual ErrorOr<void> set_pcm_output_sample_rate(size_t channel_index, u32 samples_per_second_rate) = 0;
39 // Note: The return value is rate of samples per second
40 virtual ErrorOr<u32> get_pcm_output_sample_rate(size_t channel_index) = 0;
41
42private:
43 IntrusiveListNode<AudioController, LockRefPtr<AudioController>> m_node;
44};
45}