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wss(4) [netbsd man page]

WSS(4)							   BSD Kernel Interfaces Manual 						    WSS(4)

wss -- Windows Sound System hardware audio driver SYNOPSIS
wss0 at isa? port 0x530 irq 10 drq 0 drq2 1 wss0 at isa? port 0x530 irq 10 drq 0 flags 1 wss* at acpi? wss* at isapnp? wss* at pnpbios? index ? audio* at audiobus? opl* at wss? DESCRIPTION
The wss driver supports Microsoft's Windows Sound System, the MAD16 chip based hardware, and their clones. The base I/O port is set by a jumper on the board; valid choices are 0x530, 0x604, 0xE80, or 0xF40. Both IRQ and DMA channels are software programmable. The IRQ may be set to 7, 9, 10, or 11, and the DMA channel may be set to 0, 1, or 3. The device flags must have bit 0 (value 1) set to enable the MAD16 support. This is to avoid potential conflicts with other devices when probing the MAD16 because it requires use of extra I/O ports not in the base port range. Chips needing this flag include the OPTi 82C928, 82C929, 82C831, and the OAK OTI-601D. Setting bit 1 (value 2) in flags disables the joystick port on MAD16 hardware. SEE ALSO
acpi(4), audio(4), isa(4), isapnp(4), joy(4), opl(4), pnpbios(4) BSD
June 22, 2005 BSD

Check Out this Related Man Page

GUS(4)							   BSD Kernel Interfaces Manual 						    GUS(4)

gus -- Gravis UltraSound/UltraSound MAX audio device driver SYNOPSIS
gus0 at isa? port 0xPPP irq X drq Y drq2 Z audio* at audiobus? DESCRIPTION
The gus driver provides support for the Gravis UltraSound (GUS) and GUS MAX audio cards. Both cards have on-board memory which is used for seamless playback of samples. They can play back 8- or 16-bit samples at up to 44.1kHz. They can record 8-bit samples at up to 44.1kHz. The UltraSound MAX is a full-duplex sound device, and if configured with two DRQ channels can be used for simultaneous playback and record- ing. The I/O port base is jumper-selected, and may be chosen from 0x210-0x260 in steps of 0x10. (The normal setting is 0x220.) The GUS takes 16 ports at its base address and 8 ports at its base address + 0x100. The IRQ is software programmed, so you may select any IRQ from the set {3,5,7,9,11,12,15}. The DRQ lines are software programmed, and may be chosen from {1,3,5,6,7}. The drq2 field in the configuration file line specifies a second DRQ line for recording. If there is no drq2 field in the config file, the playback channel will be used for recording DMA and only half-duplex mode will be available. The Gravis UltraSound MAX has an additional CODEC onboard which is addressed with four ports at an offset of 0x10C from the base ports (0x31C-0x36C). SEE ALSO
Gravis UltraSound Low-Level Toolkit, Revision 2.01, 20 May 1993, published by Advanced Gravis and Forte Technologies. HISTORY
The gus device driver appeared in NetBSD 1.1. BUGS
The full-duplex features of the GUS MAX have not been fully tested, and full-duplex on the original GUS may not be possible at all. Only two voices on the GF1 synthesizer chip are used by this driver (for left and right channels). Manipulating the mixer while audio samples are playing can lead to device driver confusion (and maybe even a system panic). Manipulating the mixer device seems to create pregnant system pauses, probably due to excessive interrupt masking. The joystick and MIDI port interfaces are not supported. BSD
June 22, 2005 BSD
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