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44 Commits

Author SHA1 Message Date
mycroft
5b00b99bef Allow DRQ[A-C] to be used on the 1888 as well. 1999-03-19 12:40:21 +00:00
mycroft
b6ee330d4e dmapos should start at 0, in theory. 
Also experimentally force polling mode.
 1999-03-18 06:04:21 +00:00
mycroft
039246b8d5 Add support for polling. 1999-03-18 04:31:36 +00:00
mycroft
ff4754d6e5 Confirm that there was an interrupt before handling it. Allows IRQs to be 
shared with other devices.
 1999-03-18 02:44:27 +00:00
mycroft
8ace2247cb Fix a couple of other places we should avoid the Audio2 DRQ on the 1788. 1999-03-17 02:39:59 +00:00
mycroft
81a1ade358 More redux: 
* Use a single routine to halt both input and output on Audio1.
* Reduce the number of register reads/writes used to set up a channel.
* A few other minor things.
 1999-03-17 01:06:17 +00:00
mycroft
84f100d175 Audio1 does not support 16-bit DMA. Eliminate some code that tried to handle 
that case.
 1999-03-16 14:17:00 +00:00
mycroft
13d43eb62b Fix old typo. 1999-03-16 13:37:23 +00:00
mycroft
e085a0c921 A little more cleanup. 1999-03-16 13:32:25 +00:00
mycroft
28e080a143 Minor fix to some debugging output. 1999-03-16 13:24:27 +00:00
mycroft
3e404912dc Clean up the previous: 
* 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
nathanw
64fffdfef9 Add support for the 1788 AudioDrive chip. 
Some minor cleanup; refer to more registers by macros rather
than raw hex constants.
 1999-03-02 20:36:50 +00:00
mycroft
ea50d6f672 Use DMAMODE_LOOPDEMAND. 
Fixes the audible glitches (due to FIFO underruns) when receiving network
packets on the Shark.
 1999-02-22 01:57:33 +00:00
mycroft
b81ad0de61 Fix the halt_input and halt_output routines to actually disable the channel, 
not just the DMA FIFO.  Fixes problems with sample misalignment.
 1999-02-20 23:28:37 +00:00
mycroft
e5f5e628d2 Pass the direction to the allocm and round_buffersize methods. 
Some drivers need this to properly allocate DMAable memory.
 1999-02-17 02:37:38 +00:00
mycroft
88ad3aa42b If we have an 8-bit DRQ, always pass that to isa_malloc(). 1999-02-17 01:22:47 +00:00
augustss
0d32a9a78b Fix more `void *' arithmetic. 1999-01-08 19:22:34 +00:00
mycroft
3357fbeefb Minor format change. 1998-11-25 13:39:37 +00:00
augustss
8d64ea1683 Less debug printing. 1998-08-26 13:08:44 +00:00
augustss
bb3c56652c Make the OPL driver turn on the sound on sound cards that require it. 
That makes it much more likely that we get any sound.  DUH!
 1998-08-26 12:10:22 +00:00
augustss
c7e036f6e2 Let opl attach to ess. 
WARNING: it doesn't work yet.
 1998-08-22 22:55:09 +00:00
augustss
cd09067eb4 * Redo the way the way the MIDI driver attaches to audio devices. 
* Improve the midisyn layer a little.
* Add a driver for the Yamaha OPL[23] FM synths.
  The opl driver is not finished yet; it sounds pretty awful.

For some strange reason I cannot get any FM sound from my SB64 cards,
but a regular SB16 works fine.
 1998-08-17 21:16:09 +00:00
mycroft
5c76b6a944 The mic preamp is really a property of the input stage, and affects both 
pass-through and recording.
 1998-08-12 19:13:14 +00:00
mycroft
3979b06d00 enhanced -> preamp 1998-08-12 03:18:34 +00:00
matthias
1f5c14d8ef ess_audio_channel:active is now used even when DIAGNOSTICS is not defined. 1998-08-11 12:16:22 +00:00
mycroft
7fca135b1b Use the new trigger interface. 1998-08-10 15:32:18 +00:00
mycroft
b4e0bf5dfb Use 4- and 8-byte DMA transfers. 1998-08-09 06:52:57 +00:00
mycroft
0611fc34f8 Don't actually touch the hardware in set_params; defer that until we actually 
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
mycroft
5eba82397c Oops; fix typo. 1998-08-09 04:59:55 +00:00
mycroft
017b9af5fe Clarify with a specific reference to the manual page in question. 1998-08-09 04:58:08 +00:00
mycroft
12f5a41e1f Make the previous slightly more robust, and set AUDIO_PROP_INDEPENDENT. 1998-08-09 04:40:55 +00:00
mycroft
c8532af3b2 Make sure the sample rate is the same on both channels, tracking the change 
from one channel to the other if only one is active.
 1998-08-09 04:14:47 +00:00
mycroft
759ca5ee0c The manual says to use the other crystal for 22050Hz. 1998-08-09 03:48:42 +00:00
mycroft
565adbaffb Set the FIFO control bits correctly so that stereo recording works. 1998-08-09 02:54:50 +00:00
mycroft
80457a2c65 Use auto-initialize DMA for recording. 1998-08-09 02:05:52 +00:00
mycroft
254afcaecb Sleeping forever kinda sucks. 1998-08-08 21:37:00 +00:00
mycroft
17932f0575 Set the correct modes for the record channel. 1998-08-08 20:55:36 +00:00
matt
7b044dea51 Make the irq checking logic somewhat less bogus. 1998-08-07 00:51:06 +00:00
augustss
f76fb48283 Use looping DMA for play channel. 
More cleanup.
 1998-08-04 13:14:42 +00:00
augustss
ce69d417a2 Make it compile without DIAGNOSTIC 1998-07-31 23:54:09 +00:00
augustss
6b407a79c6 Major cleanup of the ESS driver. It now sorta works. More to come. 1998-07-31 15:17:17 +00:00
thorpej
bf52ef5697 Squash unused variable. 1998-07-30 22:17:34 +00:00
augustss
cdeb158d5f A first stab at making the SHARK sound work. It doesn't really work 
yet, but it probes and makes a noise when used.  Stay tuned!
 1998-07-30 14:11:42 +00:00
augustss
080dc567e8 A first stab at an ESS1887 driver. The code is from the SHARK port 
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