ARIA(4)                   OpenBSD Programmer's Manual                  ARIA(4)

NAME
     aria - Aria 16 audio device

SYNOPSIS
     aria0 at isa? port 0x280 irq 10 drq 0 flags 0x1

DESCRIPTION
     The aria driver provides support for sound cards based on Sierra Semicon-
     ductor's Aria chipset.  Cards based on this chipset are capable of
     recording and playing 8- or 16-bit samples in mono or stereo up to
     44.1kHz.  Some chipsets only play linear or ADCPM, but others will also
     play Mu-law and A-law sounds.  Three different mixer configurations are
     available.

     The I/O Port Base is selected from 0x280, 0x290, 0x2a0 and 0x2b0.  The
     selection method depends on the board.  The Aria takes 8 ports.

     The IRQ is selected from 10, 11, or 12.

     The DRQ line is chosen from 5 or 6, this driver will work with or without
     a DRQ.  If no DRQ is given, then the aria driver will simply use Direct
     I/O.

     The flags currently supported are 0x1, for the Prometheus Aria 16/Aria
     16se.  This flag tells the driver to initialize the card.  It is a weird
     and undocumented piece of horribleness, but the card will not respond un-
     til you twiddle with the joystick port.

SEE ALSO
     audio(4), intro(4), isa(4)

AUTHORS
     Roland C. Dowdeswell <roland@imrryr.org>

BUGS
     The driver has only been tested on a Prometheus Aria 16.

     No DMA support, yet, so don't bother setting a DRQ.

     The full-duplex features are horribly inconsistent (i.e., unusable).

     The card sometimes drops out, and needs to be reset.  This can be accom-
     plished by opening and closing /dev/audio, e.g., ``echo -n >/dev/audio''

     The joystick and MIDI port interfaces are not supported.

OpenBSD 4.7                      May 31, 2007                                1
