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Kernel/Audio: Propagate errors when creating AudioChannels

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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.
This commit is contained in:
Liav A 2023-04-11 13:11:02 +03:00 • committed by Linus Groh
parent 4921561687
commit dd7633c5f4
8 changed files with 16 additions and 18 deletions
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4
Kernel/Devices/Audio/AC97.cpp
View file

@ -88,7 +88,7 @@ UNMAP_AFTER_INIT ErrorOr<void> AC97::initialize(Badge<AudioManagement>)
dbgln_if(AC97_DEBUG, "AC97 @ {}: mixer base: {:#04x}", device_identifier().address(), m_mixer_io_window); dbgln_if(AC97_DEBUG, "AC97 @ {}: mixer base: {:#04x}", device_identifier().address(), m_mixer_io_window);
dbgln_if(AC97_DEBUG, "AC97 @ {}: bus base: {:#04x}", device_identifier().address(), m_bus_io_window); dbgln_if(AC97_DEBUG, "AC97 @ {}: bus base: {:#04x}", device_identifier().address(), m_bus_io_window);
m_audio_channel = AudioChannel::must_create(*this, 0); m_audio_channel = TRY(AudioChannel::create(*this, 0));
// Read out AC'97 codec revision and vendor // Read out AC'97 codec revision and vendor
auto extended_audio_id = m_mixer_io_window->read16(NativeAudioMixerRegister::ExtendedAudioID); auto extended_audio_id = m_mixer_io_window->read16(NativeAudioMixerRegister::ExtendedAudioID);
@ -177,7 +177,7 @@ void AC97::set_pcm_output_volume(u8 left_channel, u8 right_channel, Muted mute)
m_mixer_io_window->write16(NativeAudioMixerRegister::SetPCMOutputVolume, volume_value); m_mixer_io_window->write16(NativeAudioMixerRegister::SetPCMOutputVolume, volume_value);
} }
LockRefPtr<AudioChannel> AC97::audio_channel(u32 index) const RefPtr<AudioChannel> AC97::audio_channel(u32 index) const
{ {
if (index == 0) if (index == 0)
return m_audio_channel; return m_audio_channel;

5
Kernel/Devices/Audio/AC97.h
View file

@ -7,6 +7,7 @@
#pragma once #pragma once
#include <AK/Error.h> #include <AK/Error.h>
#include <AK/RefPtr.h>
#include <Kernel/Bus/PCI/API.h> #include <Kernel/Bus/PCI/API.h>
#include <Kernel/Bus/PCI/Device.h> #include <Kernel/Bus/PCI/Device.h>
#include <Kernel/Devices/Audio/Controller.h> #include <Kernel/Devices/Audio/Controller.h>
@ -167,7 +168,7 @@ private:
// ^AudioController // ^AudioController
virtual ErrorOr<void> initialize(Badge<AudioManagement>) override; virtual ErrorOr<void> initialize(Badge<AudioManagement>) override;
virtual LockRefPtr<AudioChannel> audio_channel(u32 index) const override; virtual RefPtr<AudioChannel> audio_channel(u32 index) const override;
virtual ErrorOr<size_t> write(size_t channel_index, UserOrKernelBuffer const& data, size_t length) override; virtual ErrorOr<size_t> write(size_t channel_index, UserOrKernelBuffer const& data, size_t length) override;
virtual ErrorOr<void> set_pcm_output_sample_rate(size_t channel_index, u32 samples_per_second_rate) override; virtual ErrorOr<void> set_pcm_output_sample_rate(size_t channel_index, u32 samples_per_second_rate) override;
virtual ErrorOr<u32> get_pcm_output_sample_rate(size_t channel_index) override; virtual ErrorOr<u32> get_pcm_output_sample_rate(size_t channel_index) override;
@ -185,7 +186,7 @@ private:
NonnullOwnPtr<AC97Channel> m_pcm_out_channel; NonnullOwnPtr<AC97Channel> m_pcm_out_channel;
u32 m_sample_rate { 0 }; u32 m_sample_rate { 0 };
bool m_variable_rate_pcm_supported { false }; bool m_variable_rate_pcm_supported { false };
LockRefPtr<AudioChannel> m_audio_channel; RefPtr<AudioChannel> m_audio_channel;
}; };
} }

7
Kernel/Devices/Audio/Channel.cpp
View file

@ -13,12 +13,9 @@
namespace Kernel { namespace Kernel {
UNMAP_AFTER_INIT NonnullLockRefPtr<AudioChannel> AudioChannel::must_create(AudioController const& controller, size_t channel_index) UNMAP_AFTER_INIT ErrorOr<NonnullRefPtr<AudioChannel>> AudioChannel::create(AudioController const& controller, size_t channel_index)
{ {
auto audio_device_or_error = DeviceManagement::try_create_device<AudioChannel>(controller, channel_index); return *TRY(DeviceManagement::try_create_device<AudioChannel>(controller, channel_index));
// FIXME: Find a way to propagate errors
VERIFY(!audio_device_or_error.is_error());
return audio_device_or_error.release_value();
} }
AudioChannel::AudioChannel(AudioController const& controller, size_t channel_index) AudioChannel::AudioChannel(AudioController const& controller, size_t channel_index)

2
Kernel/Devices/Audio/Channel.h
View file

@ -20,7 +20,7 @@ class AudioChannel final
friend class DeviceManagement; friend class DeviceManagement;
public: public:
static NonnullLockRefPtr<AudioChannel> must_create(AudioController const&, size_t channel_index); static ErrorOr<NonnullRefPtr<AudioChannel>> create(AudioController const&, size_t channel_index);
virtual ~AudioChannel() override = default; virtual ~AudioChannel() override = default;
// ^CharacterDevice // ^CharacterDevice

4
Kernel/Devices/Audio/Controller.h
View file

@ -8,11 +8,11 @@
#include <AK/IntrusiveList.h> #include <AK/IntrusiveList.h>
#include <AK/OwnPtr.h> #include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <Kernel/Bus/PCI/Access.h> #include <Kernel/Bus/PCI/Access.h>
#include <Kernel/Bus/PCI/Device.h> #include <Kernel/Bus/PCI/Device.h>
#include <Kernel/Devices/Audio/Channel.h> #include <Kernel/Devices/Audio/Channel.h>
#include <Kernel/Devices/Device.h> #include <Kernel/Devices/Device.h>
#include <Kernel/Library/LockRefPtr.h>
#include <Kernel/Library/LockWeakable.h> #include <Kernel/Library/LockWeakable.h>
#include <Kernel/Locking/Mutex.h> #include <Kernel/Locking/Mutex.h>
#include <Kernel/Memory/PhysicalPage.h> #include <Kernel/Memory/PhysicalPage.h>
@ -30,7 +30,7 @@ class AudioController
public: public:
virtual ~AudioController() = default; virtual ~AudioController() = default;
virtual LockRefPtr<AudioChannel> audio_channel(u32 index) const = 0; virtual RefPtr<AudioChannel> audio_channel(u32 index) const = 0;
virtual ErrorOr<size_t> write(size_t channel_index, UserOrKernelBuffer const& data, size_t length) = 0; virtual ErrorOr<size_t> write(size_t channel_index, UserOrKernelBuffer const& data, size_t length) = 0;
virtual ErrorOr<void> initialize(Badge<AudioManagement>) = 0; virtual ErrorOr<void> initialize(Badge<AudioManagement>) = 0;

4
Kernel/Devices/Audio/IntelHDA/Controller.cpp
View file

@ -92,7 +92,7 @@ UNMAP_AFTER_INIT ErrorOr<void> Controller::initialize(Badge<AudioManagement>)
return result.release_error(); return result.release_error();
} }
m_audio_channel = AudioChannel::must_create(*this, fixed_audio_channel_index); m_audio_channel = TRY(AudioChannel::create(*this, fixed_audio_channel_index));
return {}; return {};
} }
@ -290,7 +290,7 @@ ErrorOr<void> Controller::reset()
return {}; return {};
} }
LockRefPtr<AudioChannel> Controller::audio_channel(u32 index) const RefPtr<AudioChannel> Controller::audio_channel(u32 index) const
{ {
if (index != fixed_audio_channel_index) if (index != fixed_audio_channel_index)
return {}; return {};

6
Kernel/Devices/Audio/IntelHDA/Controller.h
View file

@ -9,6 +9,7 @@
#include <AK/Error.h> #include <AK/Error.h>
#include <AK/NonnullOwnPtr.h> #include <AK/NonnullOwnPtr.h>
#include <AK/NonnullRefPtr.h> #include <AK/NonnullRefPtr.h>
#include <AK/RefPtr.h>
#include <AK/Vector.h> #include <AK/Vector.h>
#include <Kernel/Bus/PCI/Device.h> #include <Kernel/Bus/PCI/Device.h>
#include <Kernel/Devices/Audio/Channel.h> #include <Kernel/Devices/Audio/Channel.h>
@ -16,7 +17,6 @@
#include <Kernel/Devices/Audio/IntelHDA/OutputPath.h> #include <Kernel/Devices/Audio/IntelHDA/OutputPath.h>
#include <Kernel/Devices/Audio/IntelHDA/RingBuffer.h> #include <Kernel/Devices/Audio/IntelHDA/RingBuffer.h>
#include <Kernel/IOWindow.h> #include <Kernel/IOWindow.h>
#include <Kernel/Library/LockRefPtr.h>
namespace Kernel::Audio::IntelHDA { namespace Kernel::Audio::IntelHDA {
@ -65,7 +65,7 @@ private:
ErrorOr<void> reset(); ErrorOr<void> reset();
// ^AudioController // ^AudioController
virtual LockRefPtr<AudioChannel> audio_channel(u32 index) const override; virtual RefPtr<AudioChannel> audio_channel(u32 index) const override;
virtual ErrorOr<size_t> write(size_t channel_index, UserOrKernelBuffer const& data, size_t length) override; virtual ErrorOr<size_t> write(size_t channel_index, UserOrKernelBuffer const& data, size_t length) override;
virtual ErrorOr<void> initialize(Badge<AudioManagement>) override; virtual ErrorOr<void> initialize(Badge<AudioManagement>) override;
virtual ErrorOr<void> set_pcm_output_sample_rate(size_t channel_index, u32 samples_per_second_rate) override; virtual ErrorOr<void> set_pcm_output_sample_rate(size_t channel_index, u32 samples_per_second_rate) override;
@ -79,7 +79,7 @@ private:
OwnPtr<ResponseInboundRingBuffer> m_response_buffer; OwnPtr<ResponseInboundRingBuffer> m_response_buffer;
Vector<NonnullRefPtr<Codec>> m_codecs {}; Vector<NonnullRefPtr<Codec>> m_codecs {};
OwnPtr<OutputPath> m_output_path; OwnPtr<OutputPath> m_output_path;
LockRefPtr<AudioChannel> m_audio_channel; RefPtr<AudioChannel> m_audio_channel;
}; };
} }

2
Kernel/Devices/Audio/Management.h
View file

@ -9,10 +9,10 @@
#include <AK/Badge.h> #include <AK/Badge.h>
#include <AK/Error.h> #include <AK/Error.h>
#include <AK/IntrusiveList.h> #include <AK/IntrusiveList.h>
#include <AK/NonnullRefPtr.h>
#include <AK/OwnPtr.h> #include <AK/OwnPtr.h>
#include <AK/Types.h> #include <AK/Types.h>
#include <Kernel/Devices/Audio/Controller.h> #include <Kernel/Devices/Audio/Controller.h>
#include <Kernel/Library/LockRefPtr.h>
namespace Kernel { namespace Kernel {