46b2a2fcd4
Do ess_config_addr() in the ofisa front end, rather than in the match
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routine. Prevents problems with non-SCR ess chips, as described in
PR 11630.
2001-01-06 22:50:00 +00:00
fc96443d15
New callout mechanism with two major improvements over the old
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timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.
The old timeout()/untimeout() API has been removed from the kernel.
2000-03-23 07:01:25 +00:00
52a2804a5c
Add a new function call to the ISA DMA API: isa_dmamaxsize(), which returns
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the maximum transfer size for the specified DMA channel. Make all clients
of ISA DMA use this call to determine their maximum transfer size.
2000-02-07 22:07:27 +00:00
a6a09bcdd6
Add support for ES18[67][89]. From PR #7427 by AW9K-NNK@asahi-net.or.jp,
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Nonaka Kimihiro.
1999-06-18 20:25:23 +00:00
81d2718d5b
Add support for polling.
1999-03-18 06:03:31 +00:00
3e404912dc
Clean up the previous:
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* Separate the interrupt handlers based on which channel (audio1/audio2)
rather than which direction (input/output). Only register the handler for
audio1 on the 1788.
* Since the input sides are actually the same, GC the duplicated code.
* Re-KNF in a bunch of places.
* Make this work again on the 1887 in the Shark.
1999-03-16 13:06:35 +00:00
64fffdfef9
Add support for the 1788 AudioDrive chip.
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Some minor cleanup; refer to more registers by macros rather
than raw hex constants.
1999-03-02 20:36:50 +00:00
4449a6ef39
Kill vestiges of isa_establish().
1999-02-19 16:15:06 +00:00
56f2d188fc
RCS ID police
1999-02-15 04:54:34 +00:00
1f5c14d8ef
ess_audio_channel:active is now used even when DIAGNOSTICS is not defined.
1998-08-11 12:16:22 +00:00
8ba8e2056b
Remove unused field (sc_ih) in ess_softc (interrupt handlers are kept
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in a per-direction structure).
1998-08-10 20:24:26 +00:00
7fca135b1b
Use the new trigger interface.
1998-08-10 15:32:18 +00:00
0611fc34f8
Don't actually touch the hardware in set_params; defer that until we actually
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start a transfer. Instead, just check that the parameters are valid.
Also, use 16-bit output for u-law and a-law.
1998-08-09 06:38:30 +00:00
c8532af3b2
Make sure the sample rate is the same on both channels, tracking the change
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from one channel to the other if only one is active.
1998-08-09 04:14:47 +00:00
f76fb48283
Use looping DMA for play channel.
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More cleanup.
1998-08-04 13:14:42 +00:00
6b407a79c6
Major cleanup of the ESS driver. It now sorta works. More to come.
1998-07-31 15:17:17 +00:00
cdeb158d5f
A first stab at making the SHARK sound work. It doesn't really work
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yet, but it probes and makes a noise when used. Stay tuned!
1998-07-30 14:11:42 +00:00
080dc567e8
A first stab at an ESS1887 driver. The code is from the SHARK port
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and needs a lot of polishing. The code compiles (on i386), but is
untested. See ess.c for a TODO list.
1998-06-29 20:56:21 +00:00
nathanw