Bananymous
da6794c8ce
This is very basic and does not support a lot of stuff (like changing the output pin :D)
78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
#pragma once
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#include <kernel/Audio/Controller.h>
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#include <kernel/Audio/HDAudio/Definitions.h>
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#include <kernel/Memory/DMARegion.h>
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namespace Kernel
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{
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class HDAudioController : public Interruptable, public BAN::RefCounted<HDAudioController>
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{
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public:
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static BAN::ErrorOr<void> create(PCI::Device& pci_device);
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BAN::ErrorOr<uint32_t> send_command(HDAudio::CORBEntry);
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uint8_t get_stream_index(HDAudio::StreamType type, uint8_t index) const;
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BAN::ErrorOr<uint8_t> allocate_stream_id();
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void deallocate_stream_id(uint8_t id);
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BAN::ErrorOr<uint8_t> allocate_stream(HDAudio::StreamType type, void* afg);
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void deallocate_stream(uint8_t index);
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PCI::BarRegion& bar0() { return *m_bar0; }
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bool is_64bit() const { return m_is64bit; }
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void handle_irq() override;
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private:
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HDAudioController(PCI::Device& pci_device)
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: m_pci_device(pci_device)
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{ }
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BAN::ErrorOr<void> initialize();
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BAN::ErrorOr<void> initialize_ring_buffers();
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BAN::ErrorOr<void> reset_controller();
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BAN::ErrorOr<HDAudio::Codec> initialize_codec(uint8_t codec);
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BAN::ErrorOr<HDAudio::AFGNode> initialize_node(uint8_t codec, uint8_t node);
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BAN::ErrorOr<HDAudio::AFGWidget> initialize_widget(uint8_t codec, uint8_t node);
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private:
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struct RingBuffer
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{
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vaddr_t vaddr;
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uint32_t index;
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uint32_t size;
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};
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private:
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PCI::Device& m_pci_device;
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BAN::UniqPtr<PCI::BarRegion> m_bar0;
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bool m_is64bit { false };
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bool m_use_immediate_command { false };
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uint8_t m_output_streams { 0 };
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uint8_t m_input_streams { 0 };
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uint8_t m_bidir_streams { 0 };
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void* m_allocated_streams[30] {};
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// NOTE: stream ids are from 1 to 15
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uint16_t m_allocated_stream_ids { 0 };
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Mutex m_command_mutex;
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SpinLock m_rb_lock;
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ThreadBlocker m_rb_blocker;
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RingBuffer m_corb;
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RingBuffer m_rirb;
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BAN::UniqPtr<DMARegion> m_ring_buffer_region;
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};
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}
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