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Kernel: Add support for Intel HDA

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This is an implementation that tries to follow the spec as closely as
possible, and works with Qemu's Intel HDA and some bare metal HDA
controllers out there. Compiling with `INTEL_HDA_DEBUG=on` will provide
a lot of detailed information that could help us getting this to work
on more bare metal controllers as well :^)

Output format is limited to `i16` samples for now.
This commit is contained in:
Jelle Raaijmakers 2023-03-10 20:10:06 +01:00
parent c530f74e2f
commit dd8fa73da1
17 changed files with 2627 additions and 20 deletions
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23
Kernel/Devices/Audio/IntelHDA/Format.h Normal file
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/*
* Copyright (c) 2023, Jelle Raaijmakers <jelle@gmta.nl>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Error.h>
#include <AK/Types.h>
namespace Kernel::Audio::IntelHDA {
struct FormatParameters {
u32 sample_rate;
u8 pcm_bits;
u8 number_of_channels;
};
ErrorOr<u16> encode_format(FormatParameters format);
ErrorOr<FormatParameters> decode_format(u16 format);
}