dd7633c5f4
While doing this, we can also just return a normal RefPtr instead of a LockRefPtr, because we create these channels when initializing an audio controller, and never change the pointer in AudioController instances after their initialization, hence no locking is necessary.
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/IntrusiveList.h>
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#include <AK/OwnPtr.h>
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#include <AK/RefPtr.h>
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#include <Kernel/Bus/PCI/Access.h>
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#include <Kernel/Bus/PCI/Device.h>
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#include <Kernel/Devices/Audio/Channel.h>
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#include <Kernel/Devices/Device.h>
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#include <Kernel/Library/LockWeakable.h>
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#include <Kernel/Locking/Mutex.h>
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#include <Kernel/Memory/PhysicalPage.h>
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#include <Kernel/PhysicalAddress.h>
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#include <Kernel/Random.h>
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namespace Kernel {
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class AudioManagement;
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class AudioController
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: public AtomicRefCounted<AudioController>
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, public LockWeakable<AudioController> {
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friend class AudioManagement;
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public:
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virtual ~AudioController() = default;
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virtual RefPtr<AudioChannel> audio_channel(u32 index) const = 0;
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virtual ErrorOr<size_t> write(size_t channel_index, UserOrKernelBuffer const& data, size_t length) = 0;
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virtual ErrorOr<void> initialize(Badge<AudioManagement>) = 0;
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virtual ErrorOr<void> set_pcm_output_sample_rate(size_t channel_index, u32 samples_per_second_rate) = 0;
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// Note: The return value is rate of samples per second
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virtual ErrorOr<u32> get_pcm_output_sample_rate(size_t channel_index) = 0;
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private:
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IntrusiveListNode<AudioController, NonnullRefPtr<AudioController>> m_node;
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};
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}
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