mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-23 09:56:00 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
82 lines
3.3 KiB
Plaintext
82 lines
3.3 KiB
Plaintext
Information about PowerPC Sound support
|
|
=====================================================================
|
|
|
|
Please mail me (Cort Dougan, cort@fsmlabs.com) if you have questions,
|
|
comments or corrections.
|
|
|
|
Last Change: 6.16.99
|
|
|
|
This just covers sound on the PReP and CHRP systems for now and later
|
|
will contain information on the PowerMac's.
|
|
|
|
Sound on PReP has been tested and is working with the PowerStack and IBM
|
|
Power Series onboard sound systems which are based on the cs4231(2) chip.
|
|
The sound options when doing the make config are a bit different from
|
|
the default, though.
|
|
|
|
The I/O base, irq and dma lines that you enter during the make config
|
|
are ignored and are set when booting according to the machine type.
|
|
This is so that one binary can be used for Motorola and IBM machines
|
|
which use different values and isn't allowed by the driver, so things
|
|
are hacked together in such a way as to allow this information to be
|
|
set automatically on boot.
|
|
|
|
1. Motorola PowerStack PReP machines
|
|
|
|
Enable support for "Crystal CS4232 based (PnP) cards" and for the
|
|
Microsoft Sound System. The MSS isn't used, but some of the routines
|
|
that the CS4232 driver uses are in it.
|
|
|
|
Although the options you set are ignored and determined automatically
|
|
on boot these are included for information only:
|
|
|
|
(830) CS4232 audio I/O base 530, 604, E80 or F40
|
|
(10) CS4232 audio IRQ 5, 7, 9, 11, 12 or 15
|
|
(6) CS4232 audio DMA 0, 1 or 3
|
|
(7) CS4232 second (duplex) DMA 0, 1 or 3
|
|
|
|
This will allow simultaneous record and playback, as 2 different dma
|
|
channels are used.
|
|
|
|
The sound will be all left channel and very low volume since the
|
|
auxiliary input isn't muted by default. I had the changes necessary
|
|
for this in the kernel but the sound driver maintainer didn't want
|
|
to include them since it wasn't common in other machines. To fix this
|
|
you need to mute it using a mixer utility of some sort (if you find one
|
|
please let me know) or by patching the driver yourself and recompiling.
|
|
|
|
There is a problem on the PowerStack 2's (PowerStack Pro's) using a
|
|
different irq/drq than the kernel expects. Unfortunately, I don't know
|
|
which irq/drq it is so if anyone knows please email me.
|
|
|
|
Midi is not supported since the cs4232 driver doesn't support midi yet.
|
|
|
|
2. IBM PowerPersonal PReP machines
|
|
|
|
I've only tested sound on the Power Personal Series of IBM workstations
|
|
so if you try it on others please let me know the result. I'm especially
|
|
interested in the 43p's sound system, which I know nothing about.
|
|
|
|
Enable support for "Crystal CS4232 based (PnP) cards" and for the
|
|
Microsoft Sound System. The MSS isn't used, but some of the routines
|
|
that the CS4232 driver uses are in it.
|
|
|
|
Although the options you set are ignored and determined automatically
|
|
on boot these are included for information only:
|
|
|
|
(530) CS4232 audio I/O base 530, 604, E80 or F40
|
|
(5) CS4232 audio IRQ 5, 7, 9, 11, 12 or 15
|
|
(1) CS4232 audio DMA 0, 1 or 3
|
|
(7) CS4232 second (duplex) DMA 0, 1 or 3
|
|
(330) CS4232 MIDI I/O base 330, 370, 3B0 or 3F0
|
|
(9) CS4232 MIDI IRQ 5, 7, 9, 11, 12 or 15
|
|
|
|
This setup does _NOT_ allow for recording yet.
|
|
|
|
Midi is not supported since the cs4232 driver doesn't support midi yet.
|
|
|
|
2. IBM CHRP
|
|
|
|
I have only tested this on the 43P-150. Build the kernel with the cs4232
|
|
set as a module and load the module with irq=9 dma=1 dma2=2 io=0x550
|