b7da7b3e2a
check out the README that is included. Submitted by: Luigi Rizzo <luigi@labinfo.iet.unipi.it>
79 lines
2.7 KiB
Plaintext
79 lines
2.7 KiB
Plaintext
--- A new FreeBSD sound driver ---
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by Luigi Rizzo (luigi@iet.unipi.it)
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This is an experimental version of the sound driver for FreeBSD.
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I have almost completely rewritten the main parts of the code,
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starting from the Voxware 3.5-alpha release with patches from
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Amancio Hasty. The only file which is largely similar to the original
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ones is "soundcard.h" (for compatibility reasons, since it contains
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the definition of all the ioctls).
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Visit http://www.iet.unipi.it/~luigi/FreeBSD.html for the latest
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information on the drivers. There you can obtain the latest source
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package that includes documentation on the design of the driver.
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CARD SUPPORT INFORMATION:
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For PnP cards, I also include the vendor_id and serial numbers of
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cards I have encountered.
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CS4236: PnP id 0x3642630e
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works like a charm. All modes, including full duplex, supported in
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MSS mode.
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CS4237: PnP id 0x3742630e
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I had early reports of success with this board, which is almost
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the same as the CS4236.
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CS4232: PnP id 0x3242630e
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this chip is reported as broken in the OSS documentation. As a
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matter of fact, on my Intel Zappa motherboard, I have problems in
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make it use the secondary DMA channel. I have it working in
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half duplex (both capture and playback) in SB3.2 emulation,
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and working in playback mode in MSS emulation.
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OPTi931: PnP id 0x3109143e
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The data sheets of this chip are very cryptic. I have it working
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in full duplex in all modes _except_ capture of uLAW/ALAW data.
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I am strongly convinced of a bug in the chip. I have sent email
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to OPTI but got no reply so far. In SB emulation mode the
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driver does not work yet (maybe I do not initialize it the
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right way).
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Another bug seems to affect full duplex operation -- it appears
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that at times DMA transfer are requested but not counted by
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the device. In normal DMA mode this causes deadlocks. The only
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solution I have found is to fetch the count from the ISA DMA
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registers, but this does not seem to work very well either.
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SB16 PnP: PnP id 0xXX008c0e
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There are many such cards (plain SB16 PnP, AWE32, AWE64, Vibra16,
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etc. all differing in the PnP id (and with different synthesis
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devices, which we do not support anyways).
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Since 970903 the driver supports them all, both capture and
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playback, 8 and 16 bits.
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GusPnP: PnP id 0x0100561e
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I have code to recognize the board as MSS, but have not tested it
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since I don't own the board. Hopefully someone will test it soon.
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OPTI925: PnP id 0x2509143e
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there is code to recognize it as a SB clone. I have reports that
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it probes ok, but not sure if it works.
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OPTI930:
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should work as an MSS clone, but support for it is not implemented
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yet.
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