HD audio driver
Description:	Generic HD audio driver for AmigaOS4
Download:	hdaudio_ahi.lha       (TIPS: Use the right click menu if your browser takes you back here all the time)
Size:	105kb
Version:	6.6
Date:	01 Apr 21
Author:	H Kanning
Submitter:	H.Kanning
Category:	driver/audio
License:	Other
Distribute:	no
Min OS Version:	4.1
FileID:	11639
Images:   Videos:
Comments:	8
Snapshots:	0
Videos:	1
Downloads:	2  (Current version)
	2  (Accumulated)

Intel HD Audio (Azalia) AHI driver for AmigaOS4 (C) H Kanning
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This driver supports PCIe soundcards that comply with the Intel HD Audio
(Azalia) specification.

Analog recording ( for now 16bit up to 192kHz) as well as analog playback (up to
7.1 channels and up to 32bit/384kHz) are supported. Support for digital inputs
and outputs is planned for the next release.

AHI prefs offers both 16bit and 32bit HIFI modes. These modes basically
determine what audio resolution goes into AHI. The output of the AHI HIFI mixing
routine will always be 32bit. This driver will automatically select the best
available resolution for playback.

A basic HDmixer tool is included to provide volume control. The HDmixer tool
will create a prefs file in "envarc:" in order to remember the sound volumes and
the location of the HDmixer window for the next start.


Which cards do work (verified):
- Creative Labs Soundblaster Audigy FX (24bit/192kHz 5.1)
- Startech PEXSOUND7CH (24bit/192kHz 7.1) -> Available under many different
brands
- Fransande 411944 (24bit/192kHz 7.1) -> Available under many different brands

Cards that should work:
- Terratec AUREON 7.1 PCIe (will arive shortly for verfication)
- Basically every combination of HDaudio controllers and HD audio multichannel
codecs (eg. CA0113, CM8288, CM8888, CM9882A ALC898 etc)

Older cards that might work (no guarantees):
- Asus Xonar Phoebus solo (CM8888 in combination with high quality discrete
DACs)
- Powercolor Devil HDX (CM8888 in combination with discrete DACs)

Cards that do not work (yet):
- Core3D (CA0132) based Sound Blasters (Eg. Z, AE-5, AE-7, AE-9 etc). These
cards have a DSP (ca0132) instead of an audio codec. Support is planned but
don't hold your breath because extensive and undocumented configuration is
required.

Cards that will never work:
- PCIe Asus soundcards that are on sale now. These cards are either AV100
(rebadged CMI8788), CM8786 or C-media 6632AX (USB chip) based. Neither of these
chips comply with the Intel HDaudio standard.
- Sound Blaster Audigy RX and all other EMU based or X-FI based sound blasters.
(do not comply with the Intel HD audio standard)
- Non-PCIe soundcards in general like external USB cards.

Special word on Creative soundblasters with a Core3D (ca0132) DSP:
This is basically a quad core X-FI dsp with the addition of an embedded 8051
cpu. This 8051 cpu is supposed to simulate an Hd audio codec. But unfortunately
it simulates only the frontend (widgets). The backend still needs to be fully
configured (plls, streams, external DACs). Other than a linux driver, there is
no documentation available how to handle this issue.
In DSP mode, the Core3D will offer an equalizer, all sort of effects and even
virtual 7.1 sound without noticable processor load. But this DSP needs to be
loaded with firmware first.
Also don't be fooled by the advertised specifications of those cards (I was).
Only the headphone output is capable of 32bit/384kHz, >125dB SNR. The normal
line outputs are limited to a mere 24bit/96kHz.
In other words. It's done if/when it's done. Don't hold your breath and
certeinly don't buy such a card in advance. 

The driver has been tested on a X5000/20 running amigaos4.1FE Upd2.

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Requirements:

- AmigaOS4.1 FE Upd2 (might work on older versions but this is not tested)
- AHI6.6
 
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Installation:

- Copy Devs/AHI/hda.audio to devs:AHI/
- Copy Devs/AudioModes/HDA to devs:AudioModes/
- Copy Prefs/Env-Archive/hda.cards to ENVARC::
- Place HDmixer where ever you like

If your card is not found, you might have to add the PCI Vendor ID and Device ID
to ENVARC:hda.cards.
The syntax is :
vendorId, DeviceId (in hexadecimal values). You can find those Ids for your card
using a tool like Ranger. (Hardware -> PCI bus -> PCI-to-PCI Bridge -> Audio
Device)

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Todo:

- Support for digital inputs and outputs (SPDIF and Coax) 
- Add 24bit recording 
- HD Audio front panel support (may work already)
- Speedup discovery with predfined profiles for known codecs
- Create docky
- Extend features of HDmixer
- Create installion script
- Support for Sound Blaster Core3D cards (both direct and DSP mode) 


All trademarks are the property of their respective owners.

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DISCLAIMER: 

ALL RIGHTS RESERVED.

THIS DRIVER IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. USE IT AT 
YOUR OWN RISK. ANY HARM OR COST AS A RESULT OF USING THIS DRIVER IS 
ENTIRELY AT YOUR OWN EXPENSE.

IN NO EVENT THE AUTHOR OF THIS DRIVER WILL BE LIABLE TO YOU FOR YOUR
DAMAGES.

THIS DRIVER IS FOR NON-COMMERCIAL PERSONAL USE ONLY. IT IS NOT ALLOWED
TO COPY, DISTRIBUTE, PUBLISH, MODIFY, CREATE DERIVATIVE WORKS, SELL OR 
OFFER IT FOR SALE (EITHER (PRE-)INSTALLED, INCLUDED OR ANY OTHER FORM OF
DISTRIBUTION) OR IN ANY WAY EXPLOIT THIS DRIVER WITHOUT WRITTEN PERMISSION
BY THE AUTHOR. 

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History:

6.6: (28 Mar 2021)
 - First public release